Volume measurement device

Abstract

An embodiment of the present invention provides a volume measurement device. The volume measurement device includes a box body, a first tray, a second tray, a weighing component, and a partition. The box body is provided with a cavity for accommodating a liquid. The first tray is disposed in the cavity and can be immersed in the liquid, and the first tray is used for carrying an object to be measured. The second tray is disposed on the top side of the box body, and the second tray is used for carrying the object to be measured. The weighing component is connected to the first tray and the second tray. The weighing component can obtain a first weight when the object to be measured is located on the first tray and a second weight when the object to be measured is located on the second tray. The first weight and the second weight are used to calculate the volume of the object to be measured. The partition is disposed at the opening of the cavity, and the partition is used to block at least part of the liquid from leaving the cavity after vaporization. With such a setting, during the measurement process, it is not easy for the second tray to adhere to the liquid, and the measurement of the second weight of the object to be measured is relatively accurate, thereby improving the accuracy of the volume measurement result.

Description

Technical Field

[0001] The present invention relates to the technical field of measurement, and more particularly to a volume measurement device. Background Art

[0002] Volume measurement is a common requirement in industry. For example, it is applied to the volume measurement of batteries to determine whether there are abnormal conditions such as bulging in the batteries by measuring the volume of the batteries.

[0003] In related technologies, the Archimedes' principle is usually adopted to measure the volume of an object to be measured. That is, by calculating the buoyancy force that the object to be measured receives in a liquid and combining the known density and gravitational acceleration of the liquid, the volume of the object to be measured can be deduced. For example, by measuring the weight of the object to be measured in the air and the weight of the object to be measured in the liquid, subtracting the two weights can obtain the buoyancy force that the object to be measured receives in the liquid, and then its volume can be deduced. Currently, in the form of a tensiometer, the object to be measured is placed on the tray of the tensiometer. The reading of the tensiometer when the object to be measured is exposed in the air is the mass of the object to be measured in the air, and the reading of the tensiometer when the object to be measured is immersed in the liquid is the mass of the object to be measured in the liquid. Subtracting these two readings is the buoyancy force received by the object to be measured. In this way, during the measurement process, the tray of the tensiometer is likely to be attached with the liquid, making the measurement of the weight of the object to be measured in the air inaccurate, and further making the measurement of the volume of the object to be measured inaccurate. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a volume measurement device that can accurately measure the volume of an object to be measured.

[0005] An embodiment of the present invention provides a volume measurement device, which includes: a box body provided with a cavity for accommodating a liquid; a first tray disposed in the cavity and immersible by the liquid, the first tray being used for carrying an object to be measured; a second tray disposed on the top side of the box body, the second tray being used for carrying the object to be measured; a weighing assembly connected to the first tray and the second tray, the weighing assembly capable of obtaining a first weight of the object to be measured when it is located on the first tray and a second weight of the object to be measured when it is located on the second tray, the first weight and the second weight being used for calculating the volume of the object to be measured; a partition disposed at the opening of the cavity, the partition being used for blocking at least part of the liquid from vaporizing and leaving the cavity.

[0006] The volume measurement device provided by the first aspect embodiment of the present invention has at least the following beneficial effects:

[0007] By setting a first tray and a second tray, the first tray is located in the cavity of the box body and can be immersed in the liquid, the second tray is located on the top side of the box body, both the first tray and the second tray are connected to the weighing assembly, and the weighing assembly can obtain a first weight when the object to be measured is located on the first tray and a second weight when the object to be measured is located on the second tray. Thus, the buoyancy force received by the object to be measured in the liquid can be calculated according to the first weight and the second weight, and then the volume of the object to be measured can be calculated using Archimedes' principle. During this process, the second tray is not easily attached with liquid, and the measurement of the second weight of the object to be measured is relatively accurate, making the volume measurement result relatively more precise. At the same time, considering the vaporization of the liquid in the cavity, a partition is provided at the opening of the cavity, and the partition can prevent at least part of the vaporized liquid from leaving the cavity to reduce the influence of the liquefaction of the vaporized liquid on the second tray on the measurement of the second weight, thereby further improving the accuracy of the volume measurement result. Moreover, since the first tray and the second tray are separated between wet and dry, it can be well applied to the volume measurement of a batch of objects to be measured, and the accuracy is guaranteed.

[0008] In one embodiment of this implementation manner, the weighing assembly includes a weighing sensor and a mounting frame. The weighing sensor is connected to the bottom side of the mounting frame, and the mounting frame is connected to both the first tray and the second tray.

[0009] In one embodiment of this implementation manner, the mounting frame includes a bottom plate and side plates. The bottom plate is provided at the bottom side of the box body, the side plates are connected to the bottom plate and extend to the top side of the box body, and both the first tray and the second tray are connected to the side plates.

[0010] In one embodiment of this implementation manner, lugs are provided on the side of the side plate facing away from the bottom plate. One end of the lug is connected to the side plate, and the other end of the lug extends to the top side of the cavity, and both the first tray and the second tray are connected to the lug.

[0011] In one embodiment of this implementation manner, a rope is provided between the first tray and the lug. The partition is provided with an avoidance hole. One end of the rope is connected to the first tray, and the other end of the rope passes through the avoidance hole and is connected to the lug.

[0012] In one embodiment of this implementation manner, the avoidance hole and the lug are correspondingly arranged, and the partition is rotatably connected to the box body. When the partition rotates relative to the box body, it can avoid the lug through the avoidance hole.

[0013] In one embodiment of this implementation manner, the second tray is rotatably connected to the lug.

[0014] In one embodiment of this implementation manner, the partition is rotatably connected to the box body, and a connecting member is provided between the partition and the second tray. The connecting member is used to connect to the partition and the second tray so that the partition and the second tray rotate synchronously.

[0015] In one embodiment of this implementation manner, the volume measurement device further includes a blowing mechanism and a housing. The housing is provided with an installation chamber, and both the blowing mechanism and the box body are installed in the installation chamber. The blowing mechanism is used to provide an air flow, and the air flow passes through the second tray.

[0016] In one embodiment of this implementation manner, the volume measurement device further includes a heating device and a baffle. Both the heating device and the baffle are provided in the cavity, and the baffle is located between the heating device and the first tray.

[0017] In one embodiment of this implementation manner, air inlets and air outlets are respectively provided on two opposite side surfaces of the housing. The blowing mechanism includes a first fan and a second fan. The first fan is provided on the side close to the air inlet, and the second fan is provided on the side close to the air outlet.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present invention with reference to the drawings and embodiments, where:

[0020] Figure 1 is a perspective structural view of a volume measurement device provided by an implementation manner of the present invention;

[0021] Figure 2 is Figure 1 a perspective structural view of the volume measurement device from another perspective;

[0022] Figure 3 is Figure 1 a structural view of the volume measurement device in a top-down direction;

[0023] Figure 4 is Figure 3 a sectional structural view of the volume measurement device in the A-A direction;

[0024] Figure 5 is Figure 1 a structural view of some components of the volume measurement device;

[0025] Figure 6 is Figure 1Schematic structural diagram of some components of the volume measurement device;

[0026] Figure 7 is Figure 1 Schematic structural diagram of the mounting rack, the first tray and the second tray of the volume measurement device;

[0027] Figure 8 It is a schematic half-sectional view of the volume measurement device provided by another embodiment of the present invention.

[0028] Reference numerals:

[0029] Volume measurement device 1000; box body 10; cavity 101; water inlet hole 102; support protrusion 11; first tray 20; rope 21; first through hole 201; second tray 30; second through hole 301; weighing assembly 40; weighing sensor 41; mounting rack 42; bottom plate 421; side plate 422; lug 4221; partition 50; second hinge 51; abutting block 52; avoidance hole 501; shielding plate 53; connecting member 54; housing 60; bottom shell 61; foot support 611; water nozzle 612; socket 613; top shell 62; first hinge 63; installation chamber 601; upper chamber 6011; lower chamber 6012; heating device 71; baffle 72; controller 73; air inlet 81; air outlet 82; blowing mechanism 90; first fan 91; second fan 92; third fan 93; fourth fan 94. Detailed description of the specific implementation

[0030] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 a limitation to the present invention.

[0032] In the description of the present invention, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and the second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0034] In the description of the present invention, the descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0035] In the related art, usually only one tray is used for measurement, that is, through one tray to measure the weight of the object to be measured in the liquid and the mass of the object to be measured in the air. Since the tray needs to be immersed in the liquid to measure the weight of the object to be measured in the liquid, the tray will adhere to the liquid, and the weight of these liquids will make the reading of the tensiometer too large (normally, the reading of the tensiometer is equal to the weight of the object to be measured, and in the case of adhering liquid, the reading of the tensiometer is equal to the sum of the weight of the object to be measured and the weight of the liquid), thus making the measured value of the weight of the object to be measured in the air too large, that is, making the measured volume of the object to be measured too large. Even when measuring the first object to be measured, first place the tray in the air to measure the weight of the object to be measured in the air, and then place the tray in the liquid to measure the weight of the object to be measured in the liquid, there is no measurement error caused by liquid adhesion. However, the next time, the tray has adhered to the liquid, and the measured weight of the object to be measured in the air will be too large. Moreover, when applied to the measurement of a batch (more than two) of objects to be measured, since the weight of the liquid adhered to the tray each time is inconsistent, the errors between multiple objects to be measured are all different, and these errors are also difficult to be uniformly eliminated. Therefore, the measurement method provided by the prior art is difficult to ensure the accuracy of the measurement of the volume of the object to be measured, and it is also difficult to apply to the volume measurement of a batch of objects to be measured.

[0036] Please refer to Figures 1 to 4 , Figure 1 which is a three-dimensional structural schematic diagram of the volume measurement device 1000 provided by the embodiment of the present invention; Figure 2 is Figure 1 a three-dimensional structural schematic diagram of the volume measurement device 1000 from another perspective; Figure 3 is Figure 1 a structural schematic diagram of the volume measurement device 1000 in the top view direction; Figure 4 is Figure 3Schematic cross-sectional structure diagram of the volume measurement device 1000 in the A-A direction. An embodiment of the present invention provides a volume measurement device 1000, which can be used to measure the volume of an object to be measured such as a battery pack. The volume measurement device 1000 includes a box body 10, a first tray 20, a second tray 30, a weighing assembly 40, and a partition 50. The box body 10 is provided with a cavity 101 for accommodating liquid. The first tray 20 is disposed in the cavity 101 and can be immersed in the liquid. The first tray 20 is used to carry the object to be measured. The second tray 30 is disposed on the top side of the box body 10 and is used to carry the object to be measured. The weighing assembly 40 is connected to the first tray 20 and the second tray 30, and the weighing assembly 40 can obtain the first weight of the object to be measured when it is located on the first tray 20 and the second weight of the object to be measured when it is located on the second tray 30. The first weight and the second weight are used to calculate the volume of the object to be measured. The partition 50 is disposed at the opening of the cavity 101 and is used to block at least part of the liquid from vaporizing and leaving the cavity 101.

[0037] Specifically, the volume measurement device 1000 further includes a housing 60. The housing 60 is provided with an installation chamber 601. The box body 10, the first tray 20, the second tray 30, the weighing assembly 40, and the partition 50 are all located in the installation chamber 601. Among them, the weighing assembly 40 is installed on the bottom wall of the installation chamber 601. The housing 60 includes a top shell 62 and a bottom shell 61. The top shell 62 and the bottom shell 61 enclose to form the installation chamber 601. The top shell 62 is connected to the bottom shell 61 through a first hinge 63 to realize the relative rotation of the top shell 62 and the bottom shell 61. It can be understood that by providing the housing 60, the influence of external factors on the volume measurement carried out inside the housing 60 can be effectively reduced. For example, it can reduce the liquefaction of external humid air on the first tray 20 and affect the volume measurement result. A plurality of feet 611 are provided on the bottom side of the bottom shell 61, and the feet 611 are used to abut against the support surface. The support surface can be selected as the ground, the desktop, or the surface of other devices. The bottom shell 61 is further provided with a water nozzle 612 and a socket 613. The bottom side of the box body 10 is provided with a water inlet hole 102, and the water inlet hole 102 is communicated with the cavity 101. The water inlet hole 102 is communicated with the water nozzle 612. The water nozzle 612 is used to connect to an external water supply device to transport the liquid of the water supply device to the cavity 101 through the water inlet hole 102. The socket 613 is used to connect to an external power supply to supply power to other devices such as the weighing assembly 40.

[0038] It can be understood that the object to be measured can be placed on the first tray 20 and the second tray 30 respectively, and the first weight of the object to be measured when it is immersed in the liquid and the second weight of the object to be measured when it is exposed to the air can be measured by the weighing component 40. By subtracting the second weight from the first weight, the buoyancy of the object to be measured can be obtained, and then the volume of the object to be measured can be calculated in combination with the density and gravitational acceleration of the liquid. Generally, different objects to be measured have different detection requirements, such as the temperature, type, etc. of the liquid in the cavity 101. Generally, the liquid is water, but when a liquid with a temperature exceeding 100°C is required to detect the volume of the object to be measured, the liquid can be selected as a high-boiling-point liquid such as glycerol. In the case of high-temperature detection requirements, the temperature of the liquid in the cavity 101 is relatively high, and at this time, the vaporization rate of the liquid will be relatively high. If the vaporized liquid liquefies on the second tray 30, the measurement result of the second weight will be too large, resulting in inaccurate volume measurement results.

[0039] By providing the first tray 20 and the second tray 30, the first tray 20 is located in the cavity 101 of the box body 10 and can be immersed in the liquid, and the second tray 30 is located on the top side of the box body 10. Both the first tray 20 and the second tray 30 are connected to the weighing component 40. The weighing component 40 can obtain the first weight of the object to be measured when it is located on the first tray 20 and the second weight of the object to be measured when it is located on the second tray 30, so that the buoyancy of the object to be measured in the liquid can be calculated according to the first weight and the second weight, and then the volume of the object to be measured can be calculated using Archimedes' principle. In this process, it is not easy for the second tray 30 to adhere to the liquid, and the measurement of the second weight of the object to be measured is relatively accurate, making the volume measurement result relatively more accurate. At the same time, considering the vaporization of the liquid in the cavity 101, a partition 50 is provided at the opening of the cavity 101. The partition 50 can prevent at least part of the vaporized liquid from leaving the cavity 101, so as to reduce the influence of the liquefaction of the vaporized liquid on the second tray 30 on the measurement of the second weight, thereby further improving the accuracy of the volume measurement result. Moreover, since the first tray 20 and the second tray 30 are separated between wet and dry, it can be well applied to the volume measurement of a batch of objects to be measured, and the accuracy is guaranteed.

[0040] In an embodiment of this implementation manner, please continue to refer to Figures 1 to 4, the volume measurement device 1000 further includes a heating device 71 and a baffle 72. Both the heating device 71 and the baffle 72 are disposed in the cavity 101, and the baffle 72 is located between the heating device 71 and the first tray 20. Specifically, the volume measurement device 1000 further includes a controller 73, which is electrically connected to the heating device 71. The controller 73 is configured to control the heating device 71 to generate heat so that the temperature of the liquid in the cavity 101 reaches a preset value. The heating device 71 is disposed between the first tray 20 and the bottom wall of the cavity 101. The baffle 72 is provided with a plurality of through holes (not shown) so that the liquid on both sides of the baffle 72 can flow. After the heating device 71 heats the liquid on the bottom side of the baffle 72, the liquid on the bottom side can transfer heat to the liquid on the top side of the baffle 72 through thermal convection. Preferably, the positions of the plurality of through holes are staggered from the positions of the first tray 20 and the second tray 30 to reduce the influence of the bubbles generated when the heating device 71 heats on the measurement of the first weight and the second weight. In this embodiment, the plurality of through holes are opened at two opposite ends of the baffle 72, and both the first tray 20 and the second tray 30 are located on the top side of the middle of the baffle 72. In addition, the baffle 72 can also play a protective role. When the object to be measured on the first tray 20 drops due to an operation error, the baffle 72 can prevent the object to be measured from directly contacting the high-temperature heating device 71, thereby improving safety.

[0041] In one embodiment of this implementation manner, please refer to Figures 5 to 7 , Figure 5 is Figure 1 a schematic structural diagram of some components of the volume measurement device 1000; Figure 6 is Figure 1 a schematic structural diagram of some components of the volume measurement device 1000; Figure 7 is Figure 1 a schematic structural diagram of the mounting bracket 42, the first tray 20, and the second tray 30 of the volume measurement device 1000. The weighing assembly 40 includes a weighing sensor 41 and a mounting bracket 42. The weighing sensor 41 is connected to the bottom side of the mounting bracket 42, and the mounting bracket 42 is connected to both the first tray 20 and the second tray 30. It can be understood that the weighing sensor 41 is disposed on the bottom side of the mounting bracket 42 to facilitate the weighing sensor 41 to measure the first weight and the second weight. Specifically, the first weight is the sum of the weight of the object to be measured in the liquid, the weight of the mounting bracket 42, the weight of the second tray 30, and the weight of the first tray 20, and the second weight is the sum of the weight of the object to be measured in the air, the weight of the mounting bracket 42, the weight of the second tray 30, and the weight of the first tray 20. In this way, it is convenient to calculate the buoyancy force received by the object to be measured in the liquid and the volume of the object to be measured based on the first weight and the second weight obtained by the weighing sensor 41.

[0042] In one embodiment of this implementation manner, please refer to Figures 1 to 4, the material of the first tray 20 is corrosion-resistant material, specifically, it can be selected from materials such as stainless steel and ceramics. With such a setting, the corrosion rate of the first tray 20 in the liquid can be reduced.

[0043] In an embodiment of this implementation manner, please refer to Figures 5 to 7 , the mounting frame 42 includes a bottom plate 421 and side plates 422. The bottom plate 421 is provided on the bottom side of the box body 10. The side plates 422 are connected to the bottom plate 421 and extend to the top side of the box body 10. Both the first tray 20 and the second tray 30 are connected to the side plates 422. Specifically, in this embodiment, the number of side plates 422 is two. The two side plates 422 are respectively connected to both sides of the bottom plate 421 and both extend to the top side of the box body 10 to be connected to the first tray 20 and the second tray 30. By setting the bottom plate 421 on the bottom side of the box body 10 and connecting the side plates 422 to the bottom plate 421 and extending them to the top side of the box body 10, it is convenient to connect the first tray 20 and the second tray 30 through the side plates 422. At the same time, the structure of the mounting frame 42 is relatively simple and occupies less space.

[0044] In an embodiment of this implementation manner, please continue to refer to Figures 5 to 7 , a lug 4221 is provided on the side of the side plate 422 facing away from the bottom plate 421. One end of the lug 4221 is connected to the side plate 422, and the other end of the lug 4221 extends to the top side of the cavity 101. Both the first tray 20 and the second tray 30 are connected to the lug 4221. In this embodiment, the lug 4221 and the side plate 422 are of an integral structure. In other embodiments, the lug 4221 and the side plate 422 can also be of a split structure. Both side plates 422 are provided with lugs 4221. The two lugs 4221 are opposite to each other and both extend to the top side of the cavity 101. Both the first tray 20 and the second tray 30 are connected to the two lugs 4221. In other embodiments, the lug 4221 can also be provided only on one of the side plates 422. By providing the lug 4221 on the side of the side plate 422 facing away from the bottom plate 421 and extending the lug 4221 to the top side of the cavity 101, it is convenient to connect to the second tray 30 on the top side of the box body 10 and the first tray 20 in the cavity 101. At the same time, the structure is relatively simple and can further reduce the space occupation.

[0045] In an embodiment of this implementation manner, please continue to refer to Figures 5 to 7, a rope 21 is provided between the first tray 20 and the lug 4221. The partition 50 is provided with an avoidance hole 501. One end of the rope 21 is connected to the first tray 20, and the other end of the rope 21 passes through the avoidance hole 501 and is connected to the lug 4221. Specifically, the number of ropes 21 is 4. The 4 ropes 21 are connected to the four corners of the first tray 20 and are connected to two lugs 4221 on the top side of the first tray 20. The 4 ropes 21 can provide stable pulling force. Correspondingly, the number of avoidance holes 501 is 4. The positions of the 4 avoidance holes 501 correspond to the positions of the 4 ropes 21. Each avoidance hole 501 can be passed through by the corresponding rope 21 to facilitate the connection between the rope 21 and the lug 4221. It can be understood that when the liquid in the cavity 101 shakes, the acting force on the flexible rope 21 is small, and the influence on the volume measurement structure of the object to be measured is relatively small.

[0046] In an embodiment of this embodiment, please continue to refer to Figures 5 to 7 , the partition 50 is rotatably connected to the box body 10, the avoidance hole 501 and the lug 4221 are arranged corresponding to each other, and the partition 50 can avoid the lug 4221 through the avoidance hole 501 when rotating relative to the box body 10. Specifically, a second hinge 51 is provided between the partition 50 and the box body 10, and the partition 50 rotates relative to the box body 10 through the second hinge 51. The number of the second hinges 51 is two. A contact block 52 is provided on the partition 50. The contact block 52 protrudes relative to the top surface of the partition 50 and is located on the same side as the hinge connection of the partition 50. The contact block 52 can be in contact with the top surface of the box body 10 after the partition 50 rotates relative to the box body 10 to support the partition 50. It can be understood that by setting the partition 50 to be rotatably connected to the box body 10, it is convenient for the partition 50 to rotate relative to the box body 10 and no longer close the opening of the cavity 101, and the object to be measured can be placed on the first tray 20 in the cavity 101. By setting the avoidance hole 501 to correspond to the lug 4221, the partition 50 can avoid the lug 4221 through the avoidance hole 501 during the rotation relative to the box body 10 to avoid interference.

[0047] In other embodiments, the partition 50 can also be slidably connected to the box body 10, and the cavity 101 is closed and opened by sliding the partition 50 relative to the box body 10. The avoidance hole 501 on the partition 50 is set to be strip-shaped to ensure that the rope 21 will not interfere with the partition 50 during the sliding of the partition 50 relative to the box body 10. The width of the avoidance hole 501 can be set to be slightly larger than the diameter of the rope 21 to reduce the risk that the liquid in the cavity 101 vaporizes and leaves through the avoidance hole 501 and liquefies on the second tray 30.

[0048] In an embodiment of this embodiment, please continue to refer to Figures 5 to 7, the second tray 30 is rotatably connected to the lug 4221. Specifically, one end of the second tray 30 is rotatably connected to one of the lugs 4221, and the other end of the second tray 30 is in contact with the other lug 4221. It can be understood that by arranging the second tray 30 and the lug 4221 to be rotatably connected, interference between the partition 50 and the second tray 30 when the partition 50 rotates relative to the box body 10 can be avoided. At the same time, it is also convenient to place the object to be tested on the first tray 20 in the cavity 101.

[0049] In one embodiment of this implementation, please continue to refer to Figures 5 to 7 , a connecting member 54 is provided between the partition 50 and the second tray 30, and the connecting member 54 is used to connect with the partition 50 and the second tray 30 so that the partition 50 and the second tray 30 rotate synchronously. In this embodiment, the connecting member 54 is connected and fixed to the partition 50, the connecting member 54 is bent, and one end of the connecting member 54 extends to the top side of the second tray 30. When the partition 50 rotates relative to the box body 10, the connecting member 54 abuts against the second tray 30 and drives the second tray 30 to rotate relative to the lug 4221, thereby achieving synchronous rotation. By providing the connecting member 54 between the partition 50 and the second tray 30, when the user drives one of the partition 50 and the second tray 30 to rotate, the other can be driven to rotate through the connecting member 54, thereby simplifying the operation and improving the measurement efficiency.

[0050] In other embodiments, the connecting member 54 may also be connected and fixed to the second tray 30. When the second tray 30 rotates relative to the lug 4221, the connecting member 54 is connected to the partition 50 and drives the partition 50 to rotate relative to the box body 10, thereby achieving synchronous rotation.

[0051] In one embodiment of this implementation, please continue to refer to Figures 5 to 7 , a plurality of first through holes 201 are provided on the first tray 20, and a plurality of second through holes 301 are provided on the second tray 30. The first through holes 201 and the second through holes 301 are both bar-shaped holes, and the extension direction of the first through holes 201 and the extension direction of the second through holes 301 are different. It can be understood that the existence of the first through holes 201 and the second through holes 301 can effectively reduce the weight of the first tray 20 and the second tray 30, which is conducive to reducing the weight of the overall device. Among them, the second through holes 301 can also reduce the risk of liquid accumulation on the second tray 30 to ensure the accuracy of the measurement results.

[0052] In one embodiment of this implementation, please refer to Figure 1 , Figure 2 and Figure 8 , Figure 8It is a schematic half-sectional view of a volume measuring device 1000 provided by another embodiment of the present invention. The volume measuring device 1000 further includes a blowing mechanism 90, and both the blowing mechanism 90 and the box body 10 are installed in the installation chamber 601. Air inlets 81 and air outlets 82 are respectively formed on two opposite side surfaces of the outer shell 60. The blowing mechanism 90 is used to provide an air flow, so that the air flow enters the installation chamber 601 from the air inlet 81, passes through the second tray 30, and leaves the installation chamber 601 from the air outlet 82. Specifically, both the air inlet 81 and the air outlet 82 are multiple, and both the multiple air inlets 81 and the multiple air inlets 81 are circular through holes. The blowing mechanism 90 includes a first fan 91 and a second fan 92. The first fan 91 is arranged on the side close to the air inlet 81, and the second fan 92 is arranged on the side close to the air outlet 82. By arranging the blowing mechanism 90, the air flow provided by the blowing mechanism 90 passes through the second tray 30, so as to keep the second tray 30 dry through the air flow, which is beneficial to improving the accuracy of the measurement of the second weight, thereby improving the accuracy of the volume measurement result.

[0053] In an embodiment of this embodiment, please refer to Figures 1 to 4 , a drying layer (not shown) is provided on the inner wall of the top shell 62, and the drying layer can absorb the moisture in the installation chamber 601 to keep the installation chamber 601 clean.

[0054] In an embodiment of this embodiment, please refer to Figures 1 to 4 , the volume measuring device 1000 further includes a shielding plate 53, and the shielding plate 53 is arranged between the bottom shell 61 and the top shell 62. The shielding plate 53 can divide the installation chamber 601 into an upper chamber 6011 and a lower chamber 6012. The shielding plate 53 can effectively prevent sundries such as moisture and dust from entering the lower chamber 6012 to protect electronic devices such as the controller 73 in the lower chamber 6012.

[0055] In an embodiment of this embodiment, please refer to Figures 1 to 4, the blowing mechanism 90 further includes a third fan 93 and a fourth fan 94. The third fan 93 and the fourth fan 94 are disposed in the lower chamber 6012. The third fan 93 and the fourth fan 94 are used to provide air flow and make the air flow pass through the mounting bracket 42 to keep the mounting bracket 42 dry, thereby improving the volume measurement result of the object to be measured. It can be understood that the first fan 91 and the second fan 92 are disposed in the upper chamber 6011. The second fan 92 and the second fan 92 can dry the part of the mounting bracket 42 located in the upper chamber 6011, and the third fan 93 and the fourth fan 94 can dry the part of the mounting bracket 42 located in the lower chamber 6012, so that the mounting bracket 42 is maintained dry. It should be explained that when measuring the volumes of a large number of objects to be measured, as time goes by, the liquid liquefied on the mounting bracket 42 continuously increases, resulting in an increasing error in the measurement result and inaccurate volume measurement of the batch of objects to be measured. By drying the part of the mounting bracket 42 in the upper chamber 6011 and the part of the mounting bracket 42 in the lower chamber 6012 with the first fan 91, the second fan 92, the third fan 93 and the fourth fan 94, the volume measurement error of the object to be measured can be effectively reduced and the accuracy can be improved.

[0056] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present invention within the knowledge scope of those of ordinary skill in the art. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A volume measuring device, characterized in that: include: The box body is provided with a cavity, and the cavity is used to contain liquid; A first tray, disposed in the cavity and submerged in the liquid, the first tray being used to carry the object to be tested; A second tray, disposed on the top side of the box, the second tray being used to carry the object to be tested; a weighing component connected to the first tray and the second tray, wherein the weighing component can obtain a first weight of the object to be measured when it is located on the first tray, and a second weight of the object to be measured when it is located on the second tray, wherein the first weight and the second weight are used to calculate the volume of the object to be measured; a partition, the partition being arranged at the opening of the cavity, the partition being used to prevent at least a portion of the liquid from leaving the cavity after being vaporized; A heating device and a baffle, wherein the heating device and the baffle are both arranged in the cavity, and the baffle is located between the heating device and the first tray; the baffle is provided with a plurality of through holes, and the plurality of through holes are provided at two opposite ends of the baffle, and the first tray and the second tray are both located at the top side of the middle of the baffle; Wherein, the weighing assembly includes a weighing sensor and a mounting frame, the weighing sensor is connected to the bottom side of the mounting frame, and the mounting frame is connected to both the first tray and the second tray; the mounting frame includes a bottom plate and a side plate, the bottom plate is arranged on the bottom side of the box body, the side plate is connected to the bottom plate and extends to the top side of the box body, and the first tray and the second tray are both connected to the side plate; a lug is provided on the side of the side plate facing away from the bottom plate, one end of the lug is connected to the side plate, and the other end of the lug extends to the top side of the cavity, and the first tray and the second tray are both connected to the lug; The second tray is rotatably connected to the lug, the partition is rotatably connected to the box body, a connecting piece is provided between the partition and the second tray, and the connecting piece is used to connect with the partition and the second tray so that the partition and the second tray rotate synchronously; The volume measuring device also includes a blower mechanism and a shell, the shell is provided with an installation chamber, the blower mechanism, the box body, the first tray, the second tray, the weighing assembly and the partition are all located in the installation chamber; the blower mechanism is used to provide airflow, the airflow passes through the second tray, the shell includes a top shell and a bottom shell, the top shell and the bottom shell enclose the installation chamber, and the inner wall of the top shell is provided with a drying layer.

2. The volume measuring device according to claim 1, characterized in that A rope is provided between the first tray and the lug, and a avoidance hole is provided on the partition plate. One end of the rope is connected to the first tray, and the other end of the rope passes through the avoidance hole and is connected to the lug.

3. The volume measuring device according to claim 2, characterized in that The avoidance hole is arranged corresponding to the lug, the partition is rotatably connected to the box body, and the partition can avoid the lug through the avoidance hole when rotating relative to the box body.

4. The volume measuring device according to claim 1, characterized in that The volume measuring device further comprises a controller, which is electrically connected to the heating device and is used to control the heating device to generate heat so that the temperature of the liquid in the cavity reaches a preset value.

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