Densimeter for measuring density of sphere
By designing a densitometer with a conical structure, using the combination of limiting projections and guide grooves, the problem that existing densitometers are difficult to measure the density of the sphere is difficult to quickly and accurately, achieving efficient and accurate density measurement.
Patent Information
- Application Number
- CN202420964748.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-07
AI Technical Summary
Existing densities are difficult to perform quickly and accurately when measuring the density of the sphere, especially when the sphere rolls, which can easily lead to data errors.
A density meter including a first tray, a second tray, a fixing rack, a beaker and a weigher are designed. Both the first tray and the second tray are tapered structures, the bottom of the tray is a closed structure, and are provided with limiting protrusions and guide grooves. The guide grooves and limiting protrusions are arranged in a misalignment to guide and limit spheres to reduce rolling errors.
It realizes rapid and accurate measurement of sphere density, reduces measurement errors, and improves measurement efficiency and accuracy.
Smart Images
Figure CN222579890U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of density measurement, in particular to a densitometer for measuring the density of a sphere. Background Art
[0002] At present, the density test methods for small samples are mostly based on the Archimedean principle and measured by the water displacement method. The density meter is an important component for testing the density of samples. The upper and lower trays of the density meter in the prior art are both flat-bottomed. When measuring the wet weight of a sphere, the sphere is easy to roll in the upper tray, resulting in constant changes in the measured data. The data error measured when the sphere rolls is large, and the lower tray is placed in the liquid. In order to avoid interference with the accuracy of the measurement results, the rolling sphere cannot be stabilized by external force, and waiting for the sphere to stabilize itself is relatively time-consuming.
[0003] Therefore, there is an urgent need for a densitometer that can quickly and accurately measure the density of a sphere. Utility Model Content
[0004] In view of various deficiencies in the prior art, a densitometer for measuring the density of a sphere is proposed to solve the technical problem that it is difficult to quickly and accurately measure the density of a sphere in the prior art.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A densitometer for measuring the density of a sphere comprises a first tray, a second tray, a fixing frame, a beaker and a weighing device, wherein the beaker is placed on the weighing device, the fixing frame is fixedly connected to the weighing device, the first tray is fixedly arranged on the fixing frame, the second tray is suspended below the liquid level of the beaker, and the first tray is located above the second tray; the first tray and the second tray are both configured as conical structures, the bottom of the first tray and the bottom of the second tray are both closed structures, the bottom of the tray is provided with a plurality of limiting protrusions, and the side walls of the first tray and the side walls of the second tray are both provided with a plurality of guide grooves.
[0007] The technical solution is further configured such that a plurality of guide grooves and a plurality of limiting protrusions are arranged circumferentially, and the guide grooves and the limiting protrusions are arranged in a staggered manner.
[0008] The technical solution is further configured such that the limiting protrusion is configured in a block shape, a strip shape or a dot shape.
[0009] The technical solution is further configured such that a weight-reducing hole is further provided on the second tray, and the weight-reducing hole is located between two adjacent guide grooves.
[0010] The technical solution is further configured such that a plurality of the weight-reducing holes are provided, and the plurality of weight-reducing holes are arranged in different circles.
[0011] The technical solution is further configured such that the sizes of the weight-reducing holes increase successively along the direction from the bottom of the second tray to the edge of the second tray.
[0012] The technical solution is further configured such that the edge of the conical structure extends in a direction away from the bottom of the disk to form a straight portion, and the guide groove extends to the side wall of the straight portion.
[0013] The technical solution is further configured as follows: a hook is fixedly provided below the first tray, and the second tray is hung in the beaker through the hook.
[0014] The beneficial effects of the utility model are:
[0015] 1. When only one sphere is measured, the sphere can directly enter the bottom of the tray along the side walls of the first tray and the second tray. Due to the conical structure and the limiting protrusion, it is not easy to roll, thereby realizing fast and accurate measurement of the sphere density.
[0016] 2. When measuring multiple spheres, put them into different guide grooves in sequence. The spheres enter the bottom of the plate through the guidance of the guide grooves and stop rolling under the blocking of the limiting protrusions, so that the density of multiple spheres can be measured at one time, which improves the measurement efficiency. At the same time, due to the limiting effect of the limiting protrusions, the accuracy of the measurement results is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of a densitometer used for measuring the density of a sphere according to an embodiment of the utility model;
[0018] Figure 2 This is a schematic diagram of a first tray in an embodiment of the utility model;
[0019] Figure 3 It is a schematic diagram of the second tray of the embodiment of the utility model.
[0020] In the attached drawings: 1. first tray; 2. second tray; 3. fixing frame; 4. beaker; 5. weighing device; 6. hook; 7. bottom of tray; 8. side wall; 9. guide groove; 10. limiting protrusion; 11. weight-reducing hole; 12. straight portion. DETAILED DESCRIPTION
[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.
[0022] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.
[0023] According to an embodiment of the utility model, a densitometer for measuring the density of a sphere is provided. Figures 1 to 3 , including a first tray 1, a second tray 2, a fixing frame 3, a beaker 4 and a weighing device 5, the beaker 4 is placed on the weighing device 5, the fixing frame 3 is fixedly connected to the weighing device 5, the first tray 1 is fixedly arranged on the fixing frame 3, the first tray 1 is located above the second tray 2, a hook 6 is fixedly arranged below the first tray 1, and the second tray 2 is suspended below the liquid level in the beaker 4 by the hook 6; the first tray 1 and the second tray 2 are both configured as conical structures, the bottom 7 of the first tray 1 and the bottom 7 of the second tray 2 are both closed structures, the bottom 7 is provided with a plurality of limiting protrusions 10, and the side walls 8 of the first tray 1 and the side walls 8 of the second tray 2 are both provided with a plurality of guide grooves 9.
[0024] It should be noted that, firstly, when only one sphere is measured, the sphere can directly enter the bottom 7 of the tray along the side walls 8 of the first tray 1 and the second tray 2. Due to the conical structure and the limiting protrusion 10, it is not easy to roll, thereby realizing the fast and accurate measurement of the sphere density, improving the measurement accuracy and reducing the error; secondly, when measuring multiple spheres, the multiple spheres are placed in sequence in different guide grooves 9, and the sphere enters the bottom 7 of the tray through the guiding effect of the guide groove 9, and stops rolling under the obstruction of the limiting protrusion 10, thereby realizing the one-time measurement of the density of multiple spheres, improving the measurement efficiency, and at the same time, due to the limiting effect of the limiting protrusion 10, the accuracy of the measurement result is guaranteed.
[0025] Specifically, the guide groove 9 and the limiting protrusions 10 are arranged circumferentially, and the guide groove 9 and the limiting protrusions 10 are arranged in a staggered manner to ensure that the ball rolling along the guide groove 9 is located between two adjacent limiting protrusions 10 after entering the disc bottom 7 .
[0026] Specifically, the limiting protrusion 10 is configured in a block shape, a strip shape or a dot shape.
[0027] Preferably, the limiting protrusion 10 is also provided with anti-slip grooves to increase the friction between the ball and the limiting protrusion 10, further ensuring that the ball can quickly stop rolling after contacting the limiting protrusion 10, thereby improving the measurement efficiency.
[0028] The technical solution is further configured such that a weight-reducing hole 11 is further provided on the second tray 2, and the weight-reducing hole 11 is located between two adjacent guide grooves 9. Specifically, a plurality of weight-reducing holes are provided, and the plurality of weight-reducing holes are arranged in different circumferences.
[0029] It should be noted that by providing the weight-reducing holes 11, the weight of the second tray 2 is reduced, thereby reducing the influence of the weight of the second tray 2 on the measurement result, and further improving the accuracy of the measurement result. At the same time, since the side wall 8 of the second tray 2 is also provided with a guide groove 9, the guide groove 9 can prevent the ball from falling from the weight-reducing hole 11 when rolling.
[0030] Preferably, along the direction from the bottom of the second tray to the edge of the second tray, the size of the lightening holes increases successively to further improve the accuracy of the measurement result.
[0031] The technical solution is further configured such that the edge of the conical structure extends away from the bottom of the tray to form a straight portion 12, the first tray 1 is connected to the fixing frame 3 through the straight portion 12, the guide groove 9 extends to the side wall of the straight portion 12, a hook 6 is fixedly provided under the first tray 1, and the second tray 2 is suspended in the beaker 4 through the hook 6.
[0032] When in use, first, in a dry state, measure and record the dry weight of each sphere to be measured, and secondly, use boiling method or vacuum method to discharge the air in the open pores of the sphere to be measured, and put the sphere to be measured into the sphere of the first tray 1 through different guide grooves 9 of the first tray 1 in turn, record the placement position of each sphere, and record the value (wet weight) displayed on the weighing device 5 after each sphere is placed; then take out the spheres in the first tray 1 in order, and after all the spheres in the first tray 1 are taken out, put the spheres into the second tray 2 in the order in which the spheres are placed in the first tray 1, record the placement position of each sphere again, and record the value (floating weight) displayed on the weighing device 5 after each sphere is placed, and according to the values recorded three times, the density of each sphere can be quickly calculated, so as to realize the density measurement of multiple spheres at one time, thereby improving the measurement efficiency. It is worth noting that in order to prevent the wet weight of the sphere from changing with the volatilization of water in the process of measuring multiple spheres at one time, resulting in inaccurate measurement values, generally only 3-4 spheres are measured at one time, which ensures the accuracy of measurement and improves the efficiency of measurement.
[0033] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.
Claims
1. A densitometer for measuring the density of a sphere, characterized in that: The device comprises a first tray, a second tray, a fixing frame, a beaker and a weighing device, wherein the beaker is placed on the weighing device, the fixing frame is fixedly connected to the weighing device, the first tray is fixedly arranged on the fixing frame, the second tray is suspended below the liquid level of the beaker, and the first tray is located above the second tray; The first tray and the second tray are both configured as conical structures, the bottom of the first tray and the bottom of the second tray are both closed structures, the bottom of the tray is provided with a plurality of limiting protrusions, and the side walls of the first tray and the side walls of the second tray are both provided with a plurality of guide grooves.
2. The densitometer for measuring the density of a sphere according to claim 1, characterized in that: A plurality of guide grooves and a plurality of limiting protrusions are arranged in a circumferential direction, and the guide grooves and the limiting protrusions are arranged in a staggered manner.
3. The densitometer for measuring the density of a sphere according to claim 1, characterized in that: The limiting protrusions are configured in block, strip or dot shapes.
4. The densitometer for measuring the density of a sphere according to claim 2, characterized in that: The second tray is also provided with a weight-reducing hole, and the weight-reducing hole is located between two adjacent guide grooves.
5. The densitometer for measuring the density of a sphere according to claim 4, characterized in that: There are a plurality of weight-reducing holes, which are arranged in different circles.
6. The densitometer for measuring the density of a sphere according to claim 5, characterized in that: Along the direction from the bottom of the second tray to the edge of the second tray, the sizes of the weight-reducing holes increase successively.
7. The densitometer for measuring the density of a sphere according to any one of claims 1 to 6, characterized in that: The edge of the tapered structure extends in a direction away from the bottom of the disk to form a straight portion, and the guide groove extends to the side wall of the straight portion.
8. The densitometer for measuring the density of a sphere according to claim 7, characterized in that: A hook is fixedly provided below the first tray, and the second tray is hung in the beaker through the hook.