Auxiliary tool for calibrating grain bulk density device
By designing auxiliary tooling for cereal bulkhead calibration, the problems of large errors and long time in the existing technology are solved, and fast and accurate bulkhead calibration is achieved, which improves the calibration efficiency and accuracy.
Patent Information
- Application Number
- CN202420634598.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-03-29
AI Technical Summary
In the prior art, the grain bulkhead calibration process requires repeated operation of the indexing straw, resulting in large errors and long time-consuming, and cannot meet the efficient and accurate calibration requirements.
An auxiliary tool for cereal bulkhead calibration is designed, including base, support rod, standard measuring cylinder, three-way valve, hot air dryer and drainage rod, which realizes direct water injection and reduces errors, and adjusts the measuring cylinder height through the snap ring and sliding sleeve, supporting fast and accurate double verification.
It reduces personnel operations, reduces errors, improves calibration efficiency and accuracy, and ensures fast and accurate calibration of the bulkhead.
Smart Images
Figure CN222733679U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of calibration equipment, in particular to an auxiliary tool for calibrating a grain bulk density device. Background Art
[0002] The bulk density instrument is a special measuring tool for measuring the grade of grain. The bulk density is the weight per unit volume. The bulk density of grain crops such as wheat and corn refers to the weight of one liter of wheat under a standard bulk density instrument test. The bulk density of grain is closely related to the organizational structure, chemical composition, shape and size of the grain, water content, specific gravity, and impurities, and is an important indicator for evaluating the quality of grain. According to the requirements, grain bulk density instruments must be compulsorily calibrated every year. In the prior art, when conducting calibration, a standard glass measuring vessel and a graduated pipette are generally used to inject a certain amount of deionized water into the bulk density instrument, and then the calibration is carried out. During the calibration process, the calibration personnel need to use the above instruments repeatedly, which will cause large errors. In order to reduce the use of graduated pipettes and reduce the time required for repeated calibration, it is necessary to develop suitable calibration tooling. Utility Model Content
[0003] In view of the above technical problems, the utility model provides an auxiliary tooling for calibrating a grain bulk density instrument.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an auxiliary tooling for calibrating a grain bulk density instrument, comprising a base, to which a plurality of support rods are fixedly connected, wherein two of the support rods are connected with a standard measuring cylinder, the bottom of the standard measuring cylinder is conical and connected with a three-way valve, the three-way valve also includes an air inlet pipe and a water outlet pipe, the water outlet pipe is connected with a drainage rod, the other support rod is connected with a hot air dryer, and the air outlet of the hot air dryer is connected with a hose.
[0005] Furthermore, the upper sliding sleeve of the support rod is provided with a main sliding sleeve, and the main sliding sleeve is connected with a main clamping ring.
[0006] Furthermore, a limiting bolt is provided on the main sliding sleeve.
[0007] Furthermore, the upper sliding sleeve of the support rod is provided with an auxiliary sliding sleeve, and the auxiliary sliding sleeve is connected with an auxiliary clamping ring.
[0008] Furthermore, a limiting bolt is provided on the auxiliary sliding sleeve.
[0009] Furthermore, a front end of the drainage rod is connected to a collar, and the collar is sleeved on the water outlet pipe.
[0010] Compared with the prior art, the utility model has the following advantages:
[0011] 1. A three-way valve is installed at the bottom of the standard measuring cylinder of the utility model, and deionized water can be directly injected into the bulk density apparatus, which reduces the operation of personnel operating the graduated pipette, saves time and reduces errors. At the same time, the three-way valve is connected with an air inlet pipe and a water outlet pipe, and the residual water in the water outlet pipe can be solved by connecting the air inlet pipe and the water outlet pipe, thereby reducing errors. A drainage rod is provided, and water is drained into the bulk density apparatus by the drainage rod to prevent errors caused by splashing of deionized water. A dryer is provided to dry the bulk density apparatus after the calibration is completed to prevent rust caused by residual water.
[0012] 2. The utility model is provided with a main clamping ring and a secondary clamping ring, and a main sliding sleeve and a secondary sliding sleeve are sleeved on the support rod, so as to facilitate the adjustment of the height of the standard measuring cylinder.
[0013] 3. The utility model connects two standard measuring cylinders, which is convenient for rapid two-word verification of the same bulk density device, improves accuracy, and during verification, can verify each other to avoid erroneous verification caused by inaccurate standard measuring cylinders. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model.
[0015] Figure 2 This is a schematic diagram of the connection relationship of the support rods of the utility model.
[0016] Figure 3 This is a schematic diagram of the structure of a standard measuring cylinder of the utility model.
[0017] Wherein: 1. base, 2. standard measuring cylinder, 3. support rod, 4. main clamp ring, 5. auxiliary clamp ring, 6. hot air dryer, 7. hose, 8. three-way valve, 8a. air inlet pipe, 8b. water outlet pipe, 9. drainage rod, 9a. collar, 10. main sliding sleeve, 11. auxiliary sliding sleeve, a. bulk density device. DETAILED DESCRIPTION
[0018] The utility model will be further described below in conjunction with the accompanying drawings.
[0019] like Figure 1 , Figure 2 , Figure 3 An auxiliary tooling for calibrating a grain bulk density instrument is shown, comprising a base 1, to which are fixedly connected a plurality of support rods 3, wherein two of the support rods 3 are connected with a standard measuring cylinder 2, the bottom of the standard measuring cylinder 2 is conical and is connected with a three-way valve 8, the three-way valve 8 also comprises an air inlet pipe 8a and a water outlet pipe 8b, the water outlet pipe 8b is connected with a drainage rod 9, the other support rod 3 is connected with a hot air dryer 6, and the air outlet of the hot air dryer 6 is connected with a hose 7.
[0020] In order to facilitate the adjustment of the height of the standard measuring cylinder 2, a main sliding sleeve 10 is provided on the sliding sleeve of the support rod 3, and a main retaining ring 4 is connected to the main sliding sleeve 10; a limiting bolt is provided on the main sliding sleeve 10; a secondary sliding sleeve 11 is provided on the sliding sleeve of the support rod 3, and a secondary retaining ring 5 is connected to the secondary sliding sleeve 11; a limiting bolt is provided on the secondary sliding sleeve 11.
[0021] The main clamp ring 4 and the auxiliary clamp ring 5 are both C-shaped, and the notches thereon are convenient for observing the indication of the standard measuring cylinder 2 .
[0022] In order to facilitate the installation of the drainage rod 9, a collar 9a is connected to the front end of the drainage rod 9, and the collar 9a is sleeved on the water outlet pipe 8b.
[0023] The specific working process of the utility model is as follows:
[0024] Before calibration, place the bulk density vessel a to be calibrated on the base 1, and place the standard measuring cylinder 2 on the main retaining ring 4 and the auxiliary retaining ring 5, adjust the height through the main sleeve 10 and the auxiliary sleeve 11, so that the end of the drainage rod 9 is attached to the upper part of the interior of the bulk density vessel a, and fix the main sleeve 10 and the auxiliary sleeve 11 with limit bolts.
[0025] During the calibration, sufficient deionized water is injected into the two standard measuring cylinders 2, and the values are recorded. It is necessary to ensure that the deionized water in the standard measuring cylinder 2 exceeds 1050ml. At this time, the three-way valve 8 is opened to connect the standard measuring cylinder 2 with the water outlet 8b, and the deionized water flows into the bulk density device a along the drainage rod 9. By calculation, when the deionized water in the standard measuring cylinder 2 is reduced by 980ml, the three-way valve 8 is adjusted to connect the air inlet 8a and the water outlet 8b to discharge the water in the outlet pipe 8b. At this time, the bulk density device a is removed. When there are no bubbles in the bulk density device a, 20ml of deionized water is injected into the bulk density device a using a graduated dropper. At this time, the volume of deionized water is measured using the measuring mechanism of the bulk density device a to see if there is an error. If the error is less than the maximum allowable error of the bulk density device a, the bulk density device a is qualified, otherwise it is unqualified. After the calibration is completed, another measuring cylinder is taken and the deionized water in the bulk density device a is poured into the measuring cylinder for re-disk.
[0026] After the calibration is completed, the hot air dryer 6 is turned on and the hose 7 is used to dry and remove water from the bulk density device a.
[0027] Repeat the above steps to conduct a second test to see if the error is qualified (the difference between the two calibration values is less than 1.0 ml for qualified). If not, replace the two standard measuring cylinders 2 at the same time and conduct another calibration.
Claims
1. An auxiliary tool for calibrating a grain bulk density instrument, comprising a base (1), to which a plurality of support rods (3) are fixedly connected, characterized in that: Two of the support rods (3) are connected to a standard measuring cylinder (2), the bottom of the standard measuring cylinder (2) is conical and connected to a three-way valve (8), the three-way valve (8) also includes an air inlet pipe (8a) and a water outlet pipe (8b), the water outlet pipe (8b) is connected to a drainage rod (9), and the other support rod (3) is connected to a hot air dryer (6), and the air outlet of the hot air dryer (6) is connected to a hose (7).
2. The auxiliary tool for calibrating grain bulk density device according to claim 1, characterized in that: The upper sliding sleeve of the support rod (3) is provided with a main sliding sleeve (10), and the main sliding sleeve (10) is connected to a main clamping ring (4).
3. The auxiliary tool for calibrating grain density instrument according to claim 2, characterized in that: The main sliding sleeve (10) is provided with a limiting bolt.
4. The auxiliary tool for calibrating grain bulk density device according to claim 1, characterized in that: The upper sliding sleeve of the support rod (3) is provided with a secondary sliding sleeve (11), and the secondary sliding sleeve (11) is connected to a secondary clamping ring (5).
5. The auxiliary tool for calibrating grain bulk density device according to claim 4, characterized in that: The auxiliary sliding sleeve (11) is provided with a limiting bolt.
6. The auxiliary tool for calibrating grain bulk density device according to claim 1, characterized in that: The front end of the drainage rod (9) is connected to a sleeve ring (9a), and the sleeve ring (9a) is sleeved on the water outlet pipe (8b).