A counterweight adjustable density meter

Abstract

This utility model discloses a counterweight adjustable density meter, specifically relating to the field of buoyancy density meter technology. It includes a density meter assembly with a counterweight component fixedly installed at its bottom. The counterweight component includes a counterweight block, and multiple inclined slots are formed on both sides of the outer wall of the counterweight block from top to bottom. A first magnetic plate is fixedly installed on one end face of each of the multiple inclined slots. Counterweights are movably inserted into each of the multiple inclined slots. This counterweight adjustable density meter allows manual removal of symmetrical counterweights at the same height from their corresponding inclined slots. Then, according to actual needs, a replacement counterweight is taken out and inserted into the corresponding inclined slot. The magnetic attraction effect of the first and second magnetic plates ensures the counterweights are more stably inserted into the inclined slots, thus allowing for convenient and stable adjustment of the density meter's counterweight. Furthermore, the counterweights will not be lost due to external impacts, enhancing its practicality.

Description

Technical Field

[0001] This utility model relates to the field of buoyancy density meter technology, specifically a counterweight adjustable density meter. Background Technology

[0002] A hydrometer is an instrument used to measure the density of liquids. It works based on the principle that the buoyant force on an object floating in a liquid is equal to its weight. A hydrometer is a sealed glass tube of uneven thickness, with a small amount of dense lead pellets or mercury at the bottom. To use it, the hydrometer is placed vertically in the liquid to be measured. Once the hydrometer stabilizes, the density of the liquid is read from its scale.

[0003] A hydrometer floats or sinks based on the balance between gravity and buoyancy. When the hydrometer's weight is greater than its buoyancy, it sinks. When the hydrometer's weight is less than the weight of an equal volume of water, it floats again. The hydrometer's reading is higher at the bottom and lower at the top. When immersed in different liquids, the volume remains the same, but the reading changes. The iron filings or lead pellets at the bottom of the hydrometer are used to maintain balance. The hydrometer's reading is higher at the bottom and lower at the top because P = ρgh; the deeper the hydrometer is immersed in the liquid, the greater the pressure, hence the lower the reading.

[0004] For example, Chinese patent application number 202023091446.X discloses a counterweight adjustable density meter, relating to the field of buoyancy-type density meter technology. This counterweight adjustable density meter includes a density meter body, which includes a scale tube and a float. The float includes a top cover and a cylindrical body. The scale tube is fixedly connected to the center of the top of the top cover, and a counterweight is detachably connected to the bottom of the float. This counterweight adjustable density meter, based on a traditional buoyancy-type density meter, features a detachable counterweight at the bottom. When measuring liquids of different densities, only the counterweight at the bottom of the density meter needs to be adjusted to adapt to different liquid densities.

[0005] However, this adjustable counterweight density meter still has some shortcomings in actual use. For example, the detachable counterweight is only magnetically attached to the bottom surface of the density meter without effective fixation and limiting. It is easy to disconnect from the density meter under external impact, resulting in the loss of the counterweight. Utility Model Content

[0006] The purpose of this invention is to provide a counterweight adjustable density meter to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a counterweight adjustable density meter, comprising a density meter assembly, wherein a counterweight assembly is fixedly installed at the bottom end of the density meter assembly;

[0008] The counterweight assembly includes a counterweight block. Multiple inclined slots are formed on both sides of the outer wall of the counterweight block from top to bottom. A first magnetic plate is fixedly installed on one end face of each of the multiple inclined slots. A counterweight is movably inserted into each of the multiple inclined slots. A second magnetic plate is fixedly installed on one side of each counterweight.

[0009] Preferably, the densitometer assembly includes a cylinder, a scale tube is fixedly installed at the top of the cylinder, and scale lines are provided on the outer side of the scale tube.

[0010] Preferably, the counterweight is fixedly installed in the middle of the bottom surface of the cylinder, and the multiple first magnetic plates and multiple second magnetic plates correspond one-to-one, with the scale lines arranged in a sparse upper and dense lower configuration.

[0011] Preferably, a sealing ring is fixedly sleeved on the top of the outer side of the counterweight, and a sealing groove is formed on the bottom surface of the sealing ring, and the sealing groove is arranged in a ring shape.

[0012] Preferably, a limiting sleeve is threaded onto the outer side of the counterweight, and a sealing ring is fixedly installed on the top surface of the limiting sleeve. The sealing ring corresponds to the sealing groove and is movably inserted into the sealing groove.

[0013] Preferably, the counterweight has a groove on its front side, and a hook rod is fixedly installed in the center of the groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This adjustable counterweight densitometer allows for targeted adjustment of the counterweight to meet different density measurement needs. The symmetrical counterweights at the same height on both sides are manually removed from their corresponding angled slots. Using the tip of the finger, the hook rod in the groove on the front of the counterweight is pinched and pulled outwards to remove it. Then, according to the actual needs, the replacement counterweight is removed and inserted into the corresponding angled slot. The magnetic attraction of the first and second magnetic plates ensures the counterweight is stably inserted into the slot, allowing for convenient and stable adjustment of the densitometer's counterweight. Furthermore, the counterweights will not shift or be lost due to external impacts, enhancing its practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the density meter component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the counterweight component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the counterweight structure of this utility model.

[0020] In the diagram: 1. Hydrometer assembly; 101. Cylinder body; 102. Scale tube; 103. Scale line; 2. Counterweight assembly; 201. Counterweight block; 202. Sealing ring; 203. Sealing groove; 204. Limiting sleeve; 205. Sealing ring; 206. Angled slot; 207. Magnetic plate No. 1; 208. Counterweight; 209. Magnetic plate No. 2; 210. Groove; 211. Hook rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-4 As shown, this utility model provides a technical solution: including a densitometer assembly 1, wherein a counterweight assembly 2 is fixedly installed at the bottom end of the densitometer assembly 1;

[0023] The counterweight assembly 2 includes a counterweight block 201. Multiple inclined slots 206 are formed on both sides of the outer wall of the counterweight block 201 from top to bottom. A first magnetic plate 207 is fixedly installed on one end face of each of the multiple inclined slots 206. A counterweight 208 is movably inserted into each of the multiple inclined slots 206. A second magnetic plate 209 is fixedly installed on one side of each counterweight 208. When measuring liquids of different densities, the counterweight of the hydrometer needs to be adjusted as needed. Specifically, the symmetrical counterweights 208 at the same height on both sides are manually pulled out from their corresponding inclined slots 206. Then, according to actual needs, the replacement counterweights 208 are... Remove the counterweight and insert it into the corresponding angled slot 206. Note that the two symmetrical counterweights 208 at the same height are of the same model and weight. Once a counterweight 208 is inserted into one angled slot 206 at the same height, the other side must be simultaneously inserted with the same model and weight. After inserting the corresponding counterweight 208, the magnetic attraction effect of the first magnetic plate 207 and the second magnetic plate 209 can make the counterweight 208 more stably inserted into the angled slot 206. At the same time, the angled insertion method makes it more difficult for the counterweight 208 to fall out of the angled slot 206.

[0024] In this embodiment, the hydrometer assembly 1 includes a cylinder 101, and a scale tube 102 is fixedly installed at the top of the cylinder 101. The outer side of the scale tube 102 is provided with scale lines 103. The hydrometer is made based on the balance of forces when an object floats and Archimedes' principle. A fully functional hydrometer can only be in a floating state. Therefore, the upward force of buoyancy is slightly greater than the downward force of gravity. However, when in equilibrium, the magnitude of gravity it experiences is equal to the buoyancy.

[0025] Meanwhile, the counterweight 201 is fixedly installed in the middle of the bottom surface of the cylinder 101. Multiple first magnetic plates 207 and multiple second magnetic plates 209 correspond one-to-one. The scale lines (103) are arranged with sparser lines at the top and denser lines at the bottom. The reading of the hydrometer is larger at the bottom and smaller at the top, with the scale value gradually increasing from top to bottom, but the scale is not uniform, being sparser at the top and denser at the bottom. When it is immersed in different liquids, the volume remains constant while the reading changes. The counterweight at the bottom of the hydrometer is used to maintain balance.

[0026] A sealing ring 202 is fixedly sleeved on the top of the outer side of the counterweight 201. A sealing groove 203 is provided on the bottom surface of the sealing ring 202. The sealing groove 203 is arranged in a ring shape.

[0027] The outer side of the counterweight 201 is threaded with a limiting sleeve 204. A sealing ring 205 is fixedly installed on the top surface of the limiting sleeve 204. The sealing ring 205 corresponds to the sealing groove 203 and is movably inserted into the sealing groove 203. After adjusting the counterweight 208, the limiting sleeve 204 is manually rotated to thread the limiting sleeve 204 onto the outer side of the counterweight 201. This further restricts the displacement of the counterweight 208 and prevents it from coming out of the inclined slot 206. At the same time, the connection between the sealing ring 205 and the sealing groove 203 can effectively improve the sealing performance of the counterweight assembly 2 and prevent liquid from seeping between the limiting sleeve 204 and the counterweight 201. In addition, the limiting sleeve 204 can be selectively removed or fitted during liquid density measurement.

[0028] The counterweight 208 has a groove 210 on its front side. A hook rod 211 is fixedly installed in the middle of the groove 210. By using the tip of your finger to pinch the hook rod 211 in the groove 210 on the front side of the counterweight 208, you can manually pull it outward to remove the corresponding counterweight 208.

[0029] In summary, this adjustable counterweight densitometer allows for targeted adjustment of the counterweight according to different density measurement needs. The symmetrical counterweights 208 at the same height on both sides are manually pulled out of their corresponding angled slots 206. Using the tip of the finger, the hook 211 in the groove 210 on the front of the counterweight 208 is pinched and pulled outwards to remove the corresponding counterweight 208. Then, according to actual needs, a replacement counterweight 208 is removed and inserted into its corresponding angled slot 206. The magnetic attraction of the first magnetic plate 207 and the second magnetic plate 209 ensures the counterweight 208 is stably inserted into the angled slot 206, allowing for convenient and stable adjustment of the densitometer's counterweight. Furthermore, the counterweight 208 will not shift or be lost due to external impacts, enhancing its practicality.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A counterweight-adjustable densimeter comprising a densimeter assembly (1), characterized in that A counterweight assembly (2) is fixedly installed at the bottom of the density meter assembly (1); The counterweight assembly (2) includes a counterweight block (201). Both sides of the outer wall of the counterweight block (201) are provided with multiple inclined slots (206) from top to bottom. A first magnetic plate (207) is fixedly installed on one end face of each of the multiple inclined slots (206). A counterweight (208) is movably inserted into each of the multiple inclined slots (206). A second magnetic plate (209) is fixedly installed on one side of the counterweight (208).

2. A density meter with adjustable counterweight according to claim 1, characterized in that The densitometer assembly (1) includes a cylinder (101), a scale tube (102) is fixedly installed at the top of the cylinder (101), and scale lines (103) are provided on the outer side of the scale tube (102).

3. A density meter with adjustable counterweight according to claim 2, characterized in that The counterweight (201) is fixedly installed in the middle of the bottom surface of the cylinder (101). Multiple first magnetic plates (207) and multiple second magnetic plates (209) correspond one-to-one. The scale lines (103) are arranged with sparse upper and dense lower sections.

4. A density meter with adjustable counterweight according to claim 1, characterized in that A sealing ring (202) is fixedly sleeved on the top of the outer side of the counterweight (201). A sealing groove (203) is provided on the bottom surface of the sealing ring (202), and the sealing groove (203) is arranged in a ring shape.

5. A density meter with adjustable counterweight according to claim 4, characterized in that The outer side of the counterweight (201) is threaded with a limiting sleeve (204), and a sealing ring (205) is fixedly installed on the top surface of the limiting sleeve (204). The sealing ring (205) corresponds to the sealing groove (203), and the sealing ring (205) is movably inserted into the sealing groove (203).

6. A density meter with adjustable counterweight according to claim 1, characterized in that The counterweight (208) has a groove (210) on its front side, and a hook rod (211) is fixedly installed in the center of the groove (210).

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