WO2022165916A1 - 称量系统及称量装置 - Google Patents

称量系统及称量装置 Download PDF

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Publication number
WO2022165916A1
WO2022165916A1 PCT/CN2021/080466 CN2021080466W WO2022165916A1 WO 2022165916 A1 WO2022165916 A1 WO 2022165916A1 CN 2021080466 W CN2021080466 W CN 2021080466W WO 2022165916 A1 WO2022165916 A1 WO 2022165916A1
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WO
WIPO (PCT)
Prior art keywords
weighing
hole
sealing
supporting
accommodating cavity
Prior art date
Application number
PCT/CN2021/080466
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English (en)
French (fr)
Inventor
刘利频
李银宝
曾旭勇
Original Assignee
广州西唐机电科技有限公司
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Application filed by 广州西唐机电科技有限公司 filed Critical 广州西唐机电科技有限公司
Publication of WO2022165916A1 publication Critical patent/WO2022165916A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G21/00—Details of weighing apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G21/00—Details of weighing apparatus
    • G01G21/28—Frames, Housings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G23/00—Auxiliary devices for weighing apparatus

Definitions

  • the invention relates to the technical field of sample weighing, in particular to a weighing system and a weighing device.
  • the sample to be weighed needs to be at high temperature (the test temperature of individual samples needs to be above 600°C), high humidity (the test humidity of individual samples needs to be above 90% RH) or corrosive (acetic acid, n-hexane, ethyl acetate) or alcohols and other atmospheres) and other test environments) after processing or testing before weighing.
  • high temperature the test temperature of individual samples needs to be above 600°C
  • high humidity the test humidity of individual samples needs to be above 90% RH
  • corrosive acetic acid, n-hexane, ethyl acetate
  • alcohols and other atmospheres corrosive
  • a weighing device comprising:
  • the weighing box is provided with a accommodating cavity and a first through hole communicating with the accommodating cavity;
  • the weighing element is disposed in the accommodating cavity, and the weighing element is provided with a weighing body corresponding to the first through hole;
  • a supporting member the supporting member is provided with a weighing end disposed close to the weighing element and a supporting end disposed away from the weighing end, the supporting member is penetrated through the first through hole inside, the support member can reciprocate along the axial direction of the first through hole, and the outer wall of the support member is spaced apart from the inner wall of the first through hole;
  • a lift assembly which is used to drive the support member to reciprocate along the axial direction of the first through hole, so that the weighing end is matched with or separated from the weighing body support;
  • An air supply assembly the air supply outlet of the air supply assembly communicates with the accommodating cavity.
  • the weighing end of the supporting member extends into the accommodating cavity after passing through the first through hole and is located above the weighing body of the weighing element, and the supporting end is located above the weighing end, so that it can be Place the sample on the support end.
  • the lifting component is used to drive the support member to descend along the axial direction of the first through hole, so that the weighing end is lowered to contact the weighing body below, and the weighing body is used to support the weighing end.
  • the support can then be used to weigh the sample placed on the support end using the weighing element.
  • the lifting component is used to drive the support member to rise along the axial direction of the first through hole, so that the weighing end rises to be separated from the weighing body below, thereby preventing the support member from being separated from the weighing body for a long time.
  • Body contact affects the weighing accuracy of the weighing element. Compared with the traditional form of driving the weighing element to move up and down, it can also avoid the vibration of the weighing element during the lifting process, so as to ensure the stability and reliability of the weighing element.
  • the supporting part is separated from the weighing body when no weighing is required, and the high temperature generated in the sample processing process can also be prevented from being transmitted to the weighing body through the supporting part. It can also ensure the weighing accuracy of the weighing element.
  • the dry protective gas can also be introduced into the accommodating cavity by using the air supply assembly, and the protective gas introduced into the accommodating cavity can be discharged through the gap between the outer wall of the support member and the inner wall of the first through hole, so that the The gas in the accommodating cavity is replaced, so that the weighing element always works in a suitable environment to ensure the weighing accuracy; in addition, during the circulation of the protective gas, the supporting parts, the weighing body and other components can also be purged. In order to achieve the effect of cooling and cooling, it can also ensure the weighing accuracy of the weighing element.
  • a weighing system comprising:
  • test box the test box and the weighing box are arranged at intervals relative to each other, the test box is provided with a test cavity and a third through hole communicating with the test cavity, wherein the supporting end is arranged in the test cavity .
  • the supporting member passes through the third through hole so that the supporting end is set in the test cavity, and the sample is placed on the supporting end in the test cavity to create a corresponding test in the test cavity. environment to process or test the sample.
  • the lifting component is used to drive the support member to descend along the axial direction of the first through hole, so that the weighing end is lowered to contact the weighing body below, and the weighing body is used to support the weighing end.
  • the support can then be used to weigh the sample placed on the support end using the weighing element.
  • the lifting component is used to drive the support member to rise along the axial direction of the first through hole, so that the weighing end rises to be separated from the weighing body below, thereby preventing the support member from being separated from the weighing body for a long time.
  • Body contact affects the weighing accuracy of the weighing element. Compared with the traditional form of driving the weighing element to move up and down, it can also avoid the vibration of the weighing element during the lifting process, so as to ensure the stability and reliability of the weighing element.
  • the supporting part is separated from the weighing body when no weighing is required, and the high temperature generated in the sample processing process can also be prevented from being transmitted to the weighing body through the supporting part. It can also ensure the weighing accuracy of the weighing element.
  • the dry protective gas can also be introduced into the accommodating cavity by using the air supply assembly, and the protective gas introduced into the accommodating cavity can be discharged through the gap between the outer wall of the support member and the inner wall of the first through hole, so that the The gas in the accommodating cavity is replaced, so that the weighing element always works in a suitable environment (room temperature, non-high humidity, non-corrosive gas, etc.) to ensure the weighing accuracy; Purge the supporting parts, weighing body and other components, so as to achieve the effect of cooling and cooling, and also ensure the weighing accuracy of the weighing components. Moreover, after the sample is processed or tested in the test chamber, it can be weighed in the test chamber without transferring the sample, avoiding the influence or interference of the external environment on the sample during the transfer process, and ensuring the accuracy of weighing.
  • a suitable environment room temperature, non-high humidity, non-corrosive gas, etc.
  • Fig. 1 is the structural representation of the weighing system of one embodiment
  • Fig. 2 is the structural representation of the weighing system of Fig. 1 when weighing;
  • Fig. 3 is the coordination diagram of one embodiment of the weighing end of the support member of the weighing system of Fig. 1 and the weighing body;
  • Fig. 4 is the coordination diagram of another embodiment of the weighing end of the support member of the weighing system of Fig. 1 and the weighing body;
  • Fig. 5 is the structural representation of the weighing system of another embodiment
  • Fig. 6 is the structural representation of the weighing system of Fig. 5 when weighing
  • Fig. 7 is the structural representation of the support member and the first sealing sleeve of the weighing system of Fig. 5;
  • Fig. 8 is the structural representation of the weighing system of still another embodiment
  • Fig. 9 is a partial enlarged view of part B of the weighing system of Fig. 8;
  • Fig. 10 is the structural schematic diagram of the weighing system of Fig. 8 when weighing
  • FIG. 11 is a schematic structural diagram of the supporting member of one embodiment of the weighing system of FIG. 8 when the first sealing sleeve is sealed;
  • FIG. 12 is a schematic structural diagram of the support member of another embodiment of the weighing system of FIG. 8 when the first sealing sleeve is sealed;
  • FIG. 13 is a schematic structural diagram of the supporting member of another embodiment of the weighing system of FIG. 8 when the first sealing sleeve is sealed.
  • a weighing device including a weighing box 100 , a weighing element 200 , a supporting member 300 , a lifting assembly 400 and an air supply assembly 500 .
  • the weighing box 100 is provided with an accommodating cavity 110 and a first through hole 120 communicating with the accommodating cavity 110;
  • the supporting member 300 is provided with a weighing end 310 disposed close to the weighing element 200, and a supporting end 320 disposed away from the weighing end 310.
  • the supporting member 300 passes through the first through hole 120, and supports
  • the support member 300 can reciprocate along the axial direction of the first through hole 120 (as shown in the direction A of FIG. 1 and FIG.
  • the lifting assembly 400 It is used to drive the support member 300 to reciprocate along the axial direction of the first through hole 120 , so that the weighing end 310 is matched with or separated from the weighing body support;
  • the weighing end 310 of the supporting member 300 extends into the accommodating cavity 110 after passing through the first through hole 120 and is located above the weighing body 210 of the weighing element 200 , and the supporting end 320 is located at the top of the weighing body 210 of the weighing element 200 . Above the weighing end 310 so that the sample 1000 can be placed on the support end 320 .
  • the lifting component 400 is used to drive the support member 300 to descend along the axial direction of the first through hole 120 , so that the weighing end 310 is lowered to contact with the weighing body 210 below, and the weighing The body 210 supports the weighing end 310 , so that the sample 1000 placed on the supporting end 320 can be weighed by the weighing element 200 .
  • the lifting component 400 is used to drive the supporting member 300 to rise along the axial direction of the first through hole 120 , so that the weighing end 310 is lifted to separate from the weighing body 210 below, thereby avoiding the supporting member 300 Contact with the weighing body 210 for a long time affects the weighing accuracy of the weighing element 200.
  • the weighing element 200 can also prevent the weighing element 200 from vibrating during the lifting process. , thereby affecting the stability and reliability of the weighing element 200 and ensuring the weighing accuracy of the weighing element 200; and, when no weighing is required, the supporting member 300 is separated from the weighing body 210, which can also avoid weighing the sample.
  • the high temperature generated during the 1000 process is transmitted to the weighing body 210 through the support member 300 , which can also ensure the weighing accuracy of the weighing element 200 .
  • the air supply assembly 500 can also be used to pass dry protective gas into the accommodating cavity 110 , and the protective gas introduced into the accommodating cavity 110 can pass through the gap between the outer wall of the support member 300 and the inner wall of the first through hole 120 discharge, so that the gas in the accommodating cavity 110 can be replaced, so that the weighing element 200 can always work in a suitable environment (room temperature, non-high humidity, non-corrosive gas, etc.) to ensure weighing accuracy; and, protection
  • components such as the supporting member 300 and the weighing body 210 can also be purged, so as to achieve the effect of cooling and cooling, and can also ensure the weighing accuracy of the weighing components.
  • the first through hole 120 may be a round hole, a square hole or other shapes and outlines, as long as a clearance space for gas discharge is left between the inner wall of the first through hole 120 and the outer wall of the support member 300 .
  • the lifting component 400 is used to drive the support member 300 to descend along the axial direction of the first through hole 120 , so that the weighing end 310 is lowered to contact the weighing body 210 below, and the weighing body 210 is used to support the weighing end 310 In order to prevent the lifting assembly 400 from interfering with the weighing result, the lifting assembly 400 can continue to descend for a certain distance, so that the lifting assembly 400 is separated from the supporting member 300, so as to ensure that the lifting assembly 400 will not interfere with the weighing of the weighing element or cause influences.
  • the weighing element can also be automatically reset or automatically reset and calibrated, and then the sample 1000 is placed on the supporting end 320 for weighing to ensure the weighing. precision.
  • the weighing element 200 may be a precision balance, and the weighing body 210 may be a weighing tray of the precision balance. Of course, in other embodiments, the weighing element 200 may also be other existing elements capable of accurately weighing the sample 1000 .
  • the weighing element 200 may be fixed on the bottom wall of the accommodating cavity 110 by means of riveting, screwing or bonding.
  • the supporting member 300 may be a supporting rod, a supporting strip or other structural forms.
  • the support member 300 can be made of ceramics or other heat-insulating materials to avoid transferring heat to the weighing element 200 .
  • the supporting end 320 may be provided with structures such as a supporting platform, a supporting flange, and the like.
  • the air supply assembly 500 may include an air supply pipeline 510 and a first switch element 520 for controlling the conduction or cut-off of the air supply pipeline 510 .
  • the air supply pipeline 510 The air outlet is communicated with the accommodating cavity 110, so as to supply dry protective gas (dry air, nitrogen or inert gas, etc.) into the accommodating cavity 110.
  • dry protective gas dry air, nitrogen or inert gas, etc.
  • the air outlet of the air supply pipe 510 may be arranged close to the supporting member 300, the weighing body 210 and other components.
  • the first switch element 520 may be a solenoid valve or other existing elements capable of turning on or off the gas supply pipe 510.
  • the first switch element 520 can supply air The pipeline 510 is connected, so that the protective gas enters the accommodating cavity 110; when the lifting assembly 400 drives the supporting member 300 to descend to the point that the weighing end 310 is in contact with the weighing body 210 and the weighing body 210 is used to support the weighing end 310 , the first switch element 520 can cut off the gas supply pipeline 510 to avoid interference or influence on the weighing of the weighing element caused by the purging of the protective gas.
  • the arrangement and number of the gas supply pipes 510 and the number of air outlets of the gas supply pipes 510 can be flexibly designed or adjusted according to actual needs, as long as the gas in the accommodating cavity 110 can be replaced, and The components such as the supporting member 300 and the weighing body 210 can be purged and cooled down.
  • the weighing body 210 is provided with a first positioning portion (not marked), and the weighing end 310 is provided with a second positioning portion (not marked) for positioning and matching with the first positioning portion.
  • the lifting assembly 400 drives the supporting member 300 to descend along the axial direction of the first through hole 120, the positioning cooperation between the first positioning portion and the second positioning portion is utilized, so that the weighing end 310 can be accurately and reliably matched with the The weighing body 210 is in contact with each other, thereby ensuring that the weighing element can accurately weigh the sample 1000 .
  • the positioning cooperation between the first positioning part and the second positioning part can be realized by means of plugging and matching, which is simple, convenient and has high positioning accuracy.
  • the first positioning portion is provided with a first tapered groove 211
  • the second positioning portion is provided with a first positioning cone 311 for positioning and matching with the first tapered groove 211 .
  • the first positioning cone 311 is inserted into the first conical groove 211 , and the space between the inner wall of the first conical groove 211 and the outer wall of the first positioning cone 311 is utilized.
  • the guide fit makes the central axis of the supporting member 300 coincide or approximately coincide with the central axis of the weighing body 210 , so that the weighing element 200 can accurately weigh the sample 1000 placed on the supporting end 320 .
  • the first positioning portion is provided with a second positioning cone 212
  • the second positioning portion is provided with a second conical groove 312 for positioning and matching with the second positioning cone 212 .
  • the second positioning cone 212 is inserted into the second conical groove 312 , and the space between the inner wall of the second conical groove 312 and the outer wall of the second positioning cone 212 is utilized.
  • the guide fit makes the central axis of the supporting member 300 coincide or approximately coincide with the central axis of the weighing body 210 , so that the weighing element 200 can accurately weigh the sample 1000 placed on the supporting end 320 .
  • the lifting assembly 400 drives the supporting member 300 to reciprocate along the axial direction of the first through hole 120, which can be realized by means of telescopic movement, or by means of linear motor driving, or by means of gear-driven rack movement. In order to achieve this, it only needs to satisfy the requirement that the support member 300 can perform linear reciprocating movement along the axial direction of the first through hole 120 .
  • the lifting assembly 400 includes a lifting platform 410 and a telescopic member 420 for driving the lifting platform 410 to ascend and descend.
  • the lift table 410 is disposed above the weighing body 210 .
  • the lift table 410 is provided with a second through hole 411 corresponding to the first through hole 120 .
  • the side wall of the supporting member 300 is provided with a supporting portion 330 for supporting and cooperating with the lifting platform 410 , and the supporting portion 330 is disposed between the weighing end 310 and the supporting end 320 .
  • the telescopic member 420 when the telescopic member 420 is elongated along the axial direction of the first through hole 120 , it drives the lifting table 410 to rise, and the lifting table 410 collides with the supporting portion 330 of the supporting member 300 , thereby driving the supporting member 300 along the first through hole.
  • the axial direction of the 120 rises, so that the weighing end 310 is separated from the weighing body 210 below; when the telescopic member 420 shrinks along the axial direction of the first through hole 120, it drives the lifting platform 410 to descend, thereby driving the supporting member 300 along the first through hole 120.
  • the axial direction of a through hole 120 is lowered, so that the weighing end 310 is lowered to contact the weighing body 210 below, and the weighing body 210 is used to support the weighing end 310 (similarly, the lifting platform 410 can be further lowered to
  • the lower part of the supporting part 330 is a certain distance from the supporting part 330).
  • the telescopic element 420 may be an air cylinder, a hydraulic cylinder or other existing elements with telescopic function.
  • the supporting portion 330 may be a supporting strip, a supporting flange or the like, as long as the lifting platform 410 can drive the supporting portion 330 to move up and down, thereby driving the supporting member 300 to move up and down.
  • the second through hole 411 may be a round hole, a square hole or other shapes and outlines, as long as the lifting platform 410 can drive the supporting portion 330 to rise during the rising process.
  • the supporting portion 330 is provided with a first air flow hole 331 that communicates with both the accommodating cavity 110 and the first through hole 120 .
  • the shielding gas can flow in the first air flow hole 331 , and further, the supporting portion 330 can be purged, kept dry, and lowered in temperature.
  • the number and opening paths of the first air flow holes 331 can be flexibly designed or adjusted according to actual use requirements, as long as the shielding gas can be used to keep the supporting portion 330 dry and cool.
  • the top surface of the lifting platform 410 is provided with a first sealing portion 412 , and the first sealing portion 412 can be sealingly matched with the inner wall of the accommodating cavity 110 .
  • the first sealing portion 412 is in sealing cooperation with the inner wall of the accommodating cavity 110 , so that more protective gas passes through the first air flow hole 331 from the accommodating cavity 110 . Then, it flows out to the outside through the first through hole 120 , which has good drying and cooling effects on the supporting portion 330 .
  • the first sealing portion 412 may be a sealing strip or a sealing ring, and a mounting groove for installing the sealing strip or the sealing ring may be provided on the top surface of the lifting platform 410 .
  • the support member 300 is provided with a second air flow hole (not shown) that communicates with both the accommodating cavity 110 and the first through hole 120 .
  • the shielding gas can flow in the second air flow hole, and further, the supporting member 300 can be purged, and the drying and cooling can be further maintained.
  • the number and opening paths of the second air flow holes can be flexibly designed or adjusted according to actual use requirements, as long as the protective gas can be used to keep the support member 300 dry and cool.
  • first airflow hole 331 may also be provided on the support portion 330 at the same time, and the second airflow hole may be provided on the support member 300 at the same time, so that the drying effect and the cooling effect are better.
  • a weighing system is also provided, including the weighing device and the test box 600 of any of the above-mentioned embodiments .
  • the test box 600 and the weighing box 100 are relatively spaced apart.
  • the test box 600 is provided with a test cavity 610 and a third through hole 620 communicating with the test cavity 610 , wherein the supporting end 320 is disposed in the test cavity 610 .
  • the support member 300 passes through the third through hole 620 so that the support end 320 is arranged in the test cavity 610, and the sample 1000 is placed on the support end 320 in the test cavity 610.
  • a corresponding test environment is created in the cavity 610 to process or test the sample 1000 .
  • the lifting component 400 is used to drive the support member 300 to descend along the axial direction of the first through hole 120 , so that the weighing end 310 is lowered to contact with the weighing body 210 below, and the weighing The body 210 supports the weighing end 310 , so that the sample 1000 placed on the supporting end 320 can be weighed by the weighing element 200 .
  • the lifting component 400 is used to drive the supporting member 300 to rise along the axial direction of the first through hole 120 , so that the weighing end 310 is lifted to separate from the weighing body 210 below, thereby avoiding the supporting member 300
  • Contact with the weighing body 210 for a long time affects the weighing accuracy of the weighing element 200.
  • it can also prevent the weighing element 200 from vibrating during the lifting process. , thereby affecting the stability and reliability of the weighing element 200 and ensuring the weighing accuracy of the weighing element 200; and, when no weighing is required, the supporting member 300 is separated from the weighing body 210, which can also avoid weighing the sample.
  • the high temperature generated during the 1000 process is transmitted to the weighing body 210 through the support member 300 , which can also ensure the weighing accuracy of the weighing element 200 .
  • the air supply assembly 500 can also be used to pass dry protective gas into the accommodating cavity 110 , and the protective gas introduced into the accommodating cavity 110 can pass through the gap between the outer wall of the support member 300 and the inner wall of the first through hole 120 discharge, so that the gas in the accommodating cavity 110 can be replaced, so that the weighing element 200 can always work in a suitable environment (room temperature, non-high humidity, non-corrosive gas, etc.) to ensure weighing accuracy; and, protection
  • components such as the supporting member 300 and the weighing body 210 can also be purged, so as to achieve the effect of cooling and cooling, and can also ensure the weighing accuracy of the weighing components.
  • the sample 1000 after the sample 1000 is processed or tested in the test chamber 610, it can be weighed in the test chamber 610 without transferring the sample 1000, so as to avoid the influence or interference of the external environment on the sample 1000 during the transfer process, and ensure the weighing accuracy.
  • the outer wall of the support member 300 is provided with a second sealing portion (not marked) for sealing the third through hole 620 .
  • the lifting component 400 is used to drive the support member 300 to rise along the axial direction of the first through hole 120 until the second sealing portion
  • the third through hole 620 is sealed (at this time, the weighing end 310 rises to be separated from the weighing body 210 and the supporting member 300 is at the highest position), so as to isolate the test cavity 610 from the outside world and avoid the sample 1000 processing or test process
  • the test environment in the middle test cavity 610 interferes or affects the weighing element 200 in the accommodating cavity 110 , so as to ensure the weighing accuracy of the weighing element 200 .
  • the sealing of the third through hole 620 by the second sealing portion can be achieved by means of plug-in fitting, or by means of interference fit, as long as the test chamber 610 can be isolated from the outside world.
  • the second sealing portion includes a sealing cone 341 disposed on the outer wall of the support member 300 , and the sealing cone 341 is used for sealingly matching with the third through hole 620 .
  • the lifting component 400 is used to drive the support member 300 to rise along the axial direction of the first through hole 120 until the sealing cone 341 is inserted
  • the outer wall of the sealing cone 341 and the inner wall of the third through hole 620 are used for sealing, so as to isolate the test cavity 610 from the outside world and avoid the test cavity 610 during the processing or testing of the sample 1000.
  • the internal test environment causes interference or influence on the weighing element 200 in the accommodating cavity 110 , so as to ensure the weighing accuracy of the weighing element 200 .
  • the part of the third through hole 620 close to the sealing cone 341 can also be set as a conical groove matching the sealing cone 341 , thereby increasing the gap between the sealing cone 341 and the inner wall of the third through hole 620 The bonding area is better, and the sealing effect is better.
  • the second sealing portion includes a sealing flange 342 disposed on the outer wall of the support member 300 , and the sealing flange 342 is used for sealingly fitting with the outer wall of the test box 600 .
  • the lifting component 400 is used to drive the support member 300 to rise along the axial direction of the first through hole 120 until the sealing flange 342 is
  • the side wall and the outer wall of the test box 600 are attached to each other, so as to realize the sealing of the third through hole 620, thereby isolating the test cavity 610 from the outside world, and avoiding the test environment in the test cavity 610 during the processing of the sample 1000 or the test process.
  • the weighing element 200 in the cavity 110 causes interference or influence, which ensures the weighing accuracy of the weighing element 200 .
  • the sealing flange 342 and the receiving portion 330 may be the same component. Of course, the sealing flange 342 may also be directly disposed on the receiving portion 330 .
  • the weighing system further includes a first sealing sleeve 700 , and the first sealing sleeve 700 is disposed on the third port by means of plugging, bonding, etc. inside hole 620.
  • the first sealing sleeve 700 is provided with a fourth through hole 710 through which the support member 300 passes, and the second sealing portion is used to seal the fourth through hole 710 . In this way, the fourth through hole 710 is sealed by the second sealing portion, so as to realize the isolation of the test cavity 610 from the outside world.
  • the first sealing sleeve 700 can be made of elastic materials such as rubber, and the second sealing portion can be elastically deformed when it cooperates with the first sealing sleeve 700, and the sealing effect is good.
  • the sealing of the fourth through hole 710 by the second sealing portion may be similar to the sealing of the third through hole 620 by the second sealing portion, and details are not described herein again.
  • the weighing system further includes a second sealing sleeve 800 and a second switching element 830 .
  • the second sealing sleeve 800 is disposed between the test box 600 and the weighing box 100 , and the second sealing sleeve 800 is sealed with the test box 600 and the weighing box 100 .
  • the second sealing sleeve 800 is provided with a fifth through hole 810 through which the support member 300 passes, and an exhaust through hole 820 communicated with the fifth through hole 810 .
  • the second switch element 830 is used to control the conduction or cut-off between the exhaust through hole 820 and the outside world.
  • the second sealing sleeve 800 is used to isolate the first through hole 120 and the third through hole 620 from the outside world.
  • the air supply assembly 500 supplies the protective gas into the accommodating cavity 110, and the protective gas purifies the supporting member 300, the weighing body 210 and other components and passes through the outer wall of the supporting member 300 and the first
  • the gap between the inner walls of the first through hole 120 flows into the fifth through hole 810
  • the second switch element 830 opens the exhaust through hole 820 so that the fifth through hole 810 communicates with the outside world, so that the protective gas flows from the exhaust through hole 820 It can be discharged to the outside world, so that the gas in the accommodating cavity 110 can be replaced, and the components such as the supporting member 300 and the weighing body 210 can also be purged, so as to achieve the effect of cooling and cooling;
  • the diameter of the fifth through hole 810 can be flexibly designed according to the actual use situation, and it can also satisfy that the lifting movement of the second sealing portion will not be interfered or affected.
  • a corresponding exhaust pipe can also be set to communicate with the exhaust through hole 820, and the second switch element 830 can also control the conduction between the exhaust through hole 820 and the outside by controlling the conduction or cut-off of the exhaust pipe and the outside world. or deadline.
  • the sealed connection between the second sealing sleeve 800 and the test box 600 and the weighing box 100 can be achieved by screwing, riveting, bonding, etc., as long as a good seal can be achieved.
  • a third sealing sleeve 900 can also be provided.
  • the third sealing sleeve 900 is provided with a sixth through hole 910 for the sealing part and the supporting part 330 to pass through.
  • the 900 is disposed in the first through hole 120 , and when the lifting platform 410 drives the supporting member 300 to rise to the highest position, the first sealing portion 412 can be sealed with the third sealing sleeve 900 .
  • the first sealing portion 412 can also be sealed with the second sealing sleeve 800 .
  • a certain body and “a certain part” can be a part of the corresponding “component”, that is, “a certain body”, “a certain part” and the “other parts of the component” are integrally formed; “Other parts” of a separate component, that is, “a body” and “a part” can be manufactured independently, and then combined with “other parts of the component” to form a whole.
  • the expression of the above-mentioned “some body” and “some part” in this application is only one of the embodiments, for the convenience of reading, rather than limiting the scope of protection of the application, as long as the above features are included and the functions are the same, it should be understood as This application is equivalent to the technical solution.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature.
  • plurality means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • installed may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • a first feature "on” or “under” a second feature may be in direct contact between the first and second features, or the first and second features indirectly through an intermediary touch.
  • the first feature being “above”, “over” and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature being “below”, “below” and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.
  • an element when an element is referred to as being “fixed on”, “disposed on”, “fixed on” or “mounted on” another element, it can be directly on the other element or an intervening element may also be present .
  • an element When an element is referred to as being “connected” to another element, it can be directly connected to the other element or intervening elements may also be present.
  • one element when one element is considered to be a "fixed transmission connection” to another element, the two can be fixed in a detachable connection, or can be fixed in a non-detachable connection, as long as power transmission can be achieved, such as socket connection, snap connection. , integral molding fixing, welding, etc., can be realized in the prior art, and will not be redundant here.
  • connection relationship or positional relationship of elements although not explicitly described, the connection relationship and positional relationship are interpreted to include a margin of error that should be acceptable for a specific value determined by those skilled in the art within the deviation range. For example, “about”, “approximately” or “substantially” can mean within one or more standard deviations, without limitation.

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Abstract

一种称量装置，包括称重箱（100）、称重元件（200）、承托件（300）、升降组件（400）及供气组件（500）；其中，称重箱（100）设有容纳腔（110）及与容纳腔（110）连通的第一通孔（120）；称重元件（200）设有对应第一通孔（120）设置的称量体（210）；承托件（300）设有称量端（310）及承托端（320），承托件（300）能够沿第一通孔（120）的轴向往复移动，且承托件（300）的外壁与第一通孔（120）的内壁间隔设置；升降组件（400）用于带动承托件（300）沿第一通孔（120）的轴向往复移动，使称量端（310）与称量体（210）承托配合或分离；供气组件（500）的供气出口与容纳腔（110）连通。利用供气组件（500）将干燥的保护气通入容纳腔（110）内，通入容纳腔（110）内的保护气能够通过承托件（300）的外壁与第一通孔（120）的内壁之间的间隙排出，从而能够对容纳腔（110）内的气体进行置换，使得称重元件（200）始终保持在合适的环境下工作，保证称量精度。

Description

称量系统及称量装置 技术领域
本发明涉及样品称量技术领域，特别是涉及一种称量系统及称量装置。
背景技术
样品在特定的试验环境下进行处理或试验后，往往需要利用称重装置对样品进行称量前。例如，被称量的样品需要在高温(个别样品的试验温度需要达到600℃以上)、高湿(个别样品的试验湿度需要达到90％RH以上)或腐蚀性(乙酸、正己烷、乙酸乙酯或醇类等氛围)等试验环境下进行处理或试验后再进行称量。传统的称重装置对样品进行称量过程中，易受到试验环境的影响，影响了测量精度。
发明内容
基于此，有必要针对测量精度受到影响的问题，提供一种称量系统及称量装置。
其技术方案如下：
一方面，提供了一种称量装置，包括：
称重箱，所述称重箱设有容纳腔及与所述容纳腔连通的第一通孔；
称重元件，所述称重元件设置于所述容纳腔内，所述称重元件设有对应所述第一通孔设置的称量体；
承托件，所述承托件设有靠近所述称重元件设置的称量端、及远离所述称量端设置的承托端，所述承托件穿设于所述第一通孔内，所述承托件能够沿所述第一通孔的轴向往复移动，且所述承托件的外壁与所述第一通孔的内壁间隔设置；
升降组件，所述升降组件用于带动所述承托件沿所述第一通孔的轴向往复移动，使所述称量端与所述称重体承托配合或分离；及
供气组件，所述供气组件的供气出口与所述容纳腔连通。
上述实施例的称量装置，承托件的称量端穿过第一通孔后伸入容纳腔内而位于称重元件的称量体的上方，承托端位于称量端的上方，从而能够将样品放置在承托端上。当需要对样品进行称重时，利用升降组件带动承托件沿第一通孔的轴向下降，从而使得称量端下降至与下方的称量体接触而利用称量体对称量端进行承托，进而能够利用称重元件对放置在承托端上的样品进行称重。当称重完成后，利用升降组件带动承托件沿第一通孔的轴向上升，从而使得称量端上升至与下方的称量体分离，进而能够避免承托件长时间的与称量体接触而影响称重元件的称量精度，相比传统的带动称重元件进行升降运动的形式而言，也能避免称重元件在升降过程中产生振动，从而对称重元件的稳定性和可靠性造成影响，保证称重元件的称量精度；并且，不需进行称量时使得承托件与称量体分离，也能避免对样品处理过程中产生的高温通过承托件传递至称量体，也能保证称重元件的称量精度。同时，还可以利用供气组件将干燥的保护气通入容纳腔内，通入容纳腔内的保护气能够通过承托件的外壁与第一通孔的内壁之间的间隙排出，从而能够对容纳腔内的气体进行置换，使得称重元件始终保持在合适的环境下工作，保证称量精度；并且，保护气流通过程中，还能对承托件、称量体等元件进行吹扫，从而达到降温冷却的效果，也能保证称量元件的称量精度。
另一方面，提供了一种称量系统，包括：
所述的称量装置；及
试验箱，所述试验箱与所述称重箱相对间隔设置，所述试验箱设有试验腔及连通所述试验腔的第三通孔，其中，所述承托端设置于所述试验腔内。
上述实施例的称量系统，承托件穿过第三通孔而使得承托端设置于试验腔内，将样品放在试验腔内的承托端上，在试验腔内营造出相应的试验环境从而对样品进行处理或试验。当需要对样品进行称重时，利用升降组件带动承托件沿第一通孔的轴向下降，从而使得称量端 下降至与下方的称量体接触而利用称量体对称量端进行承托，进而能够利用称重元件对放置在承托端上的样品进行称重。当称重完成后，利用升降组件带动承托件沿第一通孔的轴向上升，从而使得称量端上升至与下方的称量体分离，进而能够避免承托件长时间的与称量体接触而影响称重元件的称量精度，相比传统的带动称重元件进行升降运动的形式而言，也能避免称重元件在升降过程中产生振动，从而对称重元件的稳定性和可靠性造成影响，保证称重元件的称量精度；并且，不需进行称量时使得承托件与称量体分离，也能避免对样品处理过程中产生的高温通过承托件传递至称量体，也能保证称重元件的称量精度。同时，还可以利用供气组件将干燥的保护气通入容纳腔内，通入容纳腔内的保护气能够通过承托件的外壁与第一通孔的内壁之间的间隙排出，从而能够对容纳腔内的气体进行置换，使得称重元件始终保持在合适的环境(室温、非高湿、无腐蚀性气体等环境)下工作，保证称量精度；并且，保护气流通过程中，还能对承托件、称量体等元件进行吹扫，从而达到降温冷却的效果，也能保证称量元件的称量精度。而且，样品在试验腔内进行处理或试验后即可在试验腔内进行称量，不需对样品进行转移，避免转移过程中外界环境对样品造成影响或干扰，保证称量的准确性。
附图说明
构成本申请的一部分的附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为一个实施例的称量系统的结构示意图；
图2为图1的称量系统称量时的结构示意图；
图3为图1的称量系统的承托件的称量端与称量体一个实施例的配合图；
图4为图1的称量系统的承托件的称量端与称量体另一个实施例的配合图；
图5为另一个实施例的称量系统的结构示意图；
图6为图5的称量系统称量时的结构示意图；
图7为图5的称量系统的承托件及第一密封套的结构示意图；
图8为再一个实施例的称量系统的结构示意图；
图9为图8的称量系统B部分的局部放大图；
图10为图8的称量系统称量时的结构示意图；
图11为图8的称量系统一个实施例的承托件与第一密封套密封时的结构示意图；
图12为图8的称量系统另一个实施例的承托件与第一密封套密封时的结构示意图；
图13为图8的称量系统再一个实施例的承托件与第一密封套密封时的结构示意图。
附图标记说明：
100、称重箱，110、容纳腔，120、第一通孔，200、称重元件，210、称量体，211、第一锥形槽，212、第二定位锥体，300、承托件，310、称量端，311第一定位锥体，312、第二锥形槽，320、承托端，330、承托部，331、第一气流通孔，341、密封锥体，342、密封凸缘，400、升降组件，410、升降台，411、第二通孔，412、第一密封部，420、伸缩件，500、供气组件，510、供气管道，520、第一开关元件，600、试验箱，610、试验腔，620、第三通孔，700第一密封套，710、第四通孔，800、第二密封套，810、第五通孔，820、排气通孔，830、第二开关元件，900、第三密封套，910、第六通孔，1000、样品。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图对本发明的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是 本发明能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本发明内涵的情况下做类似改进，因此本发明不受下面公开的具体实施例的限制。
如图1及图2所示，在一个实施例中，提供了一种称量装置，包括称重箱100、称重元件200、承托件300、升降组件400及供气组件500。具体地，称重箱100设有容纳腔110及与容纳腔110连通的第一通孔120；称重元件200设置于容纳腔110内，称重元件200设有对应第一通孔120设置的称量体210；承托件300设有靠近称重元件200设置的称量端310、及远离称量端310设置的承托端320，承托件300穿设于第一通孔120内，承托件300能够沿第一通孔120的轴向(如图1及图2的A方向所示)往复移动，且承托件300的外壁与第一通孔120的内壁间隔设置；升降组件400用于带动承托件300沿第一通孔120的轴向往复移动，使称量端310与称重体承托配合或分离；供气组件500的供气出口与容纳腔110连通。
上述实施例的称量装置，承托件300的称量端310穿过第一通孔120后伸入容纳腔110内而位于称重元件200的称量体210的上方，承托端320位于称量端310的上方，从而能够将样品1000放置在承托端320上。当需要对样品1000进行称重时，利用升降组件400带动承托件300沿第一通孔120的轴向下降，从而使得称量端310下降至与下方的称量体210接触而利用称量体210对称量端310进行承托，进而能够利用称重元件200对放置在承托端320上的样品1000进行称重。当称重完成后，利用升降组件400带动承托件300沿第一通孔120的轴向上升，从而使得称量端310上升至与下方的称量体210分离，进而能够避免承托件300长时间的与称量体210接触而影响称重元件200的称量精度，相比传统的带动称重元件200进行升降运动的形式而言，也能避免称重元件200在升降过程中产生振动，从而对称重元件200的稳定性和可靠性造成影响，保证称重元件200的称量精度；并且，不需进行称量时使得承托件300与称量体210分离，也能避免对样品1000处理过程中产生的高温通过承托件300传递至称量体210，也能保证称重元件200的称量精度。同时，还可以利用供气组件500将干燥的保护气通入容纳腔110内，通入容纳腔110内的保护气能够通过承托件300的外壁与第一通孔120的内壁之间的间隙排出，从而能够对容纳腔110内的气体进行置换，使得称重元件200始终保持在合适的环境(室温、非高湿、无腐蚀性气体等环境)下工作，保证称量精度；并且，保护气流通过程中，还能对承托件300、称量体210等元件进行吹扫，从而达到降温冷却的效果，也能保证称量元件的称量精度。
其中，第一通孔120可以是圆孔、方孔或其他形状轮廓，只需满足第一通孔120的内壁与承托件300的外壁之间留出供气体排出的间隙空间即可。
其中，利用升降组件400带动承托件300沿第一通孔120的轴向下降，使得称量端310下降至与下方的称量体210接触而利用称量体210对称量端310进行承托时，为了避免升降组件400对称量结果造成干扰，升降组件400还可以继续下降一定距离，使得升降组件400与承托件300分离，从而保证升降组件400不会对称量元件的称量造成干扰或影响。
其中，称量体210对称量端310进行承托后，称量元件还可以进行自动清零或自动清零与校准后，再将样品1000放置在承托端320上进行称量，保证称量精度。
其中，称重元件200可以是精密天平，称量体210可以是精密天平的称重托盘。当然，在其他实施例中，称重元件200还可以是其他现有的能够对样品1000进行精密称量的元件。称重元件200可以采取铆接、螺接或粘结的方式固设在容纳腔110的底壁上。
其中，承托件300可以是承托杆、承托条或其他结构形式。承托件300可以采用陶瓷或其他隔热材质，避免将热传递至称重元件200。承托件300的承托端320为了便于放置样品1000，承托端320上可以设置承托台、承托凸缘等结构。
如图1及图2所示，在一个实施例中，供气组件500可以包括供气管道510、及用于控制供气管道510的导通或截止的第一开关元件520，供气管道510的出气口与容纳腔110连通，从而将干燥的保护气(干燥的空气、氮气或惰性气体等)供入容纳腔110内，当然，为了增强对承托件300、称量体210等元件的吹扫效果以增强冷却，可以将供气管道510的出气口靠近承托件300、称量体210等元件设置。第一开关元件520可以是电磁阀或其他现有 的能够实现供气管道510的导通或截止的元件。当升降组件400带动承托件300上升至最高位置(最高位置是指承托端320与称量体210间距最大时承托件300所处的位置)，第一开关元件520即可将供气管道510导通，使得保护气进入容纳腔110内；当升降组件400带动承托件300下降至使得称量端310与称量体210接触而利用称量体210对称量端310进行承托时，第一开关元件520即可将供气管道510截止，避免保护气的吹扫对称量元件的称量造成干扰或影响。供气管道510的布置方式和布置数量、以及供气管道510的出气口的数量可以根据实际使用需要进行灵活的设计或调整，只需满足能够对容纳腔110内的气体进行置换，也能对承托件300、称量体210等元件进行吹扫降温即可。
在一个实施例中，称量体210设有第一定位部(未标注)，称量端310设有用于与第一定位部定位配合的第二定位部(未标注)。如此，升降组件400带动承托件300沿第一通孔120的轴向下降时，利用第一定位部与第二定位部之间的定位配合，从而使得称量端310能够准确、可靠的与称量体210进行接触配合，进而保证称量元件能够准确的对样品1000进行称量。
其中，第一定位部与第二定位部之间的定位配合，可以通过插接配合的方式实现，简单、方便，定位精度高。
如图3所示，在一个实施例中，第一定位部设有第一锥形槽211，第二定位部设有用于与第一锥形槽211定位配合的第一定位锥体311。如此，升降组件400带动承托件300下降过程中，使得第一定位锥体311插入第一锥形槽211内，利用第一锥形槽211的内壁与第一定位锥体311的外壁之间的导向配合，使得承托件300的中心轴线与称量体210的中心轴线重合或近似重合，从而使得称重元件200能够准确的对放置于承托端320上的样品1000进行称量。
如图4所示，在一个实施例中，第一定位部设有第二定位锥体212，第二定位部设有用于与第二定位锥体212定位配合的第二锥形槽312。如此，升降组件400带动承托件300下降过程中，使得第二定位锥体212插入第二锥形槽312内，利用第二锥形槽312的内壁与第二定位锥体212的外壁之间的导向配合，使得承托件300的中心轴线与称量体210的中心轴线重合或近似重合，从而使得称重元件200能够准确的对放置于承托端320上的样品1000进行称量。
其中，升降组件400带动承托件300沿第一通孔120的轴向往复移动，可以通过伸缩运动的方式实现，也可以通过直线电机带动的形式实现，还可以通过齿轮驱动齿条运动的形式实现，只需满足能够使得承托件300沿第一通孔120的轴向做直线往复移动即可。
如图1、图2、图5、图6、图8及图10所示，在一个实施例中，升降组件400包括升降台410及用于带动升降台410升降的伸缩件420。升降台410设置于称量体210的上方。升降台410设有对应第一通孔120设置的第二通孔411。承托件300的侧壁设有用于与升降台410承托配合的承托部330，且承托部330设置于称量端310与承托端320之间。如此，伸缩件420沿第一通孔120的轴向伸长时，带动升降台410上升，升降台410与承托件300的承托部330抵触，从而带动承托件300沿第一通孔120的轴向上升，从而使得称量端310与下方的称量体210分离；伸缩件420沿第一通孔120的轴向收缩时，带动升降台410下降，从而带动承托件300沿第一通孔120的轴向下降，从而使得称量端310下降至与下方的称量体210接触而利用称量体210对称量端310进行承托(同理，升降台410还可以进一步下降至承托部330的下方而距承托部330一定距离)。其中，伸缩件420可以是气缸、液压缸或其他现有的具有伸缩功能的元件。可以设置两个伸缩件420，两个伸缩件420分布在称重元件200的两侧，使得升降台410的升降运动更加平稳，从而使得称量端310与称量体210的配合更加准确，保证称量精度。承托部330可以是承托条、承托凸缘等结构，只需满足升降台410的升降能够带动承托部330升降，进而带动承托件300升降即可。第二通孔411可以是圆孔、方孔或其他形状轮廓，只需满足使得升降台410上升过程中能够带动承托部330上升即可。
如图7及图9所示，在一个实施例中，承托部330设有与容纳腔110及第一通孔120均连通的第一气流通孔331。如此，保护气能够在第一气流通孔331内流动，进而能够对承托部330进行吹扫，保持干燥及进行降温。其中，第一气流通孔331的数量和开设路径可以根据实际使用需要进行灵活的设计或调整，只需满足能够利用保护气使得承托部330保持干燥及进行降温即可。
如图5及图9所示，进一步地，升降台410的顶面设有第一密封部412，第一密封部412能够与容纳腔110的内壁密封配合。如此，当升降台410带动承托件300上升至最高位置时，第一密封部412与容纳腔110的内壁密封配合，从而使得更多的保护气从容纳腔110内经过第一气流通孔331后再经过第一通孔120流出至外界，对承托部330的干燥和降温效果好。其中，第一密封部412可以是密封条或密封圈，可以在升降台410的顶面开设出用于供密封条或密封圈安装的安装槽。
在一个实施例中，承托件300设有与容纳腔110及第一通孔120均连通的第二气流通孔(未图示)。如此，保护气能够在第二气流通孔内流动，进而能够对承托件300进行吹扫，进一步保持干燥及进行降温。其中，第二气流通孔的数量和开设路径可以根据实际使用需要进行灵活的设计或调整，只需满足能够利用保护气使得承托件300保持干燥及进行降温即可。
当然，也可以同时在承托部330上设置第一气流通孔331，在承托件300上设置第二气流通孔，干燥效果和降温效果更好。
如图1、图2、图5、图6、图8及图10所示，在一个实施例中，还提供了一种称量系统，包括上述任一实施例的称量装置及试验箱600。其中，试验箱600与称重箱100相对间隔设置，试验箱600设有试验腔610及连通试验腔610的第三通孔620，其中，承托端320设置于试验腔610内。
上述实施例的称量系统，承托件300穿过第三通孔620而使得承托端320设置于试验腔610内，将样品1000放在试验腔610内的承托端320上，在试验腔610内营造出相应的试验环境从而对样品1000进行处理或试验。当需要对样品1000进行称重时，利用升降组件400带动承托件300沿第一通孔120的轴向下降，从而使得称量端310下降至与下方的称量体210接触而利用称量体210对称量端310进行承托，进而能够利用称重元件200对放置在承托端320上的样品1000进行称重。当称重完成后，利用升降组件400带动承托件300沿第一通孔120的轴向上升，从而使得称量端310上升至与下方的称量体210分离，进而能够避免承托件300长时间的与称量体210接触而影响称重元件200的称量精度，相比传统的带动称重元件200进行升降运动的形式而言，也能避免称重元件200在升降过程中产生振动，从而对称重元件200的稳定性和可靠性造成影响，保证称重元件200的称量精度；并且，不需进行称量时使得承托件300与称量体210分离，也能避免对样品1000处理过程中产生的高温通过承托件300传递至称量体210，也能保证称重元件200的称量精度。同时，还可以利用供气组件500将干燥的保护气通入容纳腔110内，通入容纳腔110内的保护气能够通过承托件300的外壁与第一通孔120的内壁之间的间隙排出，从而能够对容纳腔110内的气体进行置换，使得称重元件200始终保持在合适的环境(室温、非高湿、无腐蚀性气体等环境)下工作，保证称量精度；并且，保护气流通过程中，还能对承托件300、称量体210等元件进行吹扫，从而达到降温冷却的效果，也能保证称量元件的称量精度。而且，样品1000在试验腔610内进行处理或试验后即可在试验腔610内进行称量，不需对样品1000进行转移，避免转移过程中外界环境对样品1000造成影响或干扰，保证称量的准确性。
在一个实施例中，承托件300的外壁设有用于密封第三通孔620的第二密封部(未标注)。如此，当需要将样品1000在试验腔610内进行处理或试验而不需进行称量时，利用升降组件400带动承托件300沿第一通孔120的轴向上升，直至第二密封部对第三通孔620进行密封(此时，称量端310上升至与称量体210分离，承托件300处于最高位置)，从而使得试验腔610与外界的隔离，避免样品1000处理或试验过程中试验腔610内的试验环境对容纳腔110内的称重元件200造成干扰或影响，保证称重元件200称重的准确性。
其中，第二密封部对第三通孔620的密封，可以通过插接配合的方式实现，也可以通过抵触贴合的方式实现，只需满足能够将试验腔610与外界隔离即可。
如图7及图11所示，在一个实施例中，第二密封部包括设置于承托件300的外壁的密封锥体341，密封锥体341用于与第三通孔620密封配合。如此，当需要将样品1000在试验腔610内进行处理或试验而不需进行称量时，利用升降组件400带动承托件300沿第一通孔120的轴向上升，直至密封锥体341插入第三通孔620内，利用密封锥体341的外壁与第三通孔620的内壁之间的贴合密封，从而使得试验腔610与外界的隔离，避免样品1000处理或试验过程中试验腔610内的试验环境对容纳腔110内的称重元件200造成干扰或影响，保证称重元件200称重的准确性。进一步地，还可以将第三通孔620靠近密封锥体341的部分设置为与密封锥体341相匹配的锥形槽，从而增大了密封锥体341与第三通孔620的内壁之间的贴合面积，密封效果更好。
如图12及图13所示，在一个实施例中，第二密封部包括设置于承托件300的外壁的密封凸缘342，密封凸缘342用于与试验箱600的外壁密封贴合。如此，当需要将样品1000在试验腔610内进行处理或试验而不需进行称量时，利用升降组件400带动承托件300沿第一通孔120的轴向上升，直至密封凸缘342的侧壁与试验箱600的外壁相互贴合，从而实现对第三通孔620的密封，进而使得试验腔610与外界的隔离，避免样品1000处理或试验过程中试验腔610内的试验环境对容纳腔110内的称重元件200造成干扰或影响，保证称重元件200称重的准确性。如图13所示，其中，密封凸缘342可以与承托部330是同一部件。当然，密封凸缘342还可以直接设置在承托部330上。
如图5至图7、图11至图13所示，在一个实施例中，称量系统还包括第一密封套700，第一密封套700采用插接、粘结等方式设置于第三通孔620内。第一密封套700设有供承托件300穿过的第四通孔710，第二密封部用于密封第四通孔710。如此，利用第二密封部对第四通孔710的密封，从而实现试验腔610与外界的隔离。可以将第一密封套700采用橡胶等弹性材质，第二密封部与第一密封套700配合时使其发生弹性变形，密封效果好。其中，第二密封部对第四通孔710的密封可以与第二密封部对第三通孔620的密封方式类似，在此不再赘述。
如图9所示，在一个实施例中，称量系统还包括第二密封套800及第二开关元件830。第二密封套800设置于试验箱600与称重箱100之间，且第二密封套800与试验箱600及称重箱100均密封连接。第二密封套800设有供承托件300穿过的第五通孔810、及与第五通孔810连通的排气通孔820。第二开关元件830用于控制排气通孔820与外界的导通或截止。如此，利用第二密封套800将第一通孔120和第三通孔620与外界实现隔绝，当第二密封部对第三通孔620进行密封后(此时，称量端310上升至与下方的称量体210分离)，供气组件500将保护气供入容纳腔110内，保护气对承托件300、称量体210等元件进行吹扫后通过承托件300的外壁与第一通孔120的内壁之间的间隙流入第五通孔810内，第二开关元件830打开排气通孔820而使得第五通孔810与外界连通，进而使得保护气从排气通孔820处排出至外界，从而能够对容纳腔110内的气体进行置换，也能对承托件300、称量体210等元件进行吹扫，从而达到降温冷却的效果；当称量端310下降至与下方的称量体210接触而利用称量体210对称量端310进行承托时，供气组件500停止供气，第二开关元件830也使得排气通孔820与外界截止，从而使得容纳腔110与外界实现隔绝，避免外界气流的扰动对称重元件200的称重造成干扰或影响，保证称量精度。第二开关元件830可以是电磁阀或其他现有的能够实现排气通孔820的导通或截止的元件。
其中，第五通孔810的直径可以根据实际使用情况进行灵活的设计，还可以满足第二密封部的升降运动不会受到干涉或影响。当然，还可以设置相应的排气管道与排气通孔820进行连通，第二开关元件830也可以通过控制排气管道与外界的导通或截止实现控制排气通孔820与外界的导通或截止。第二密封套800与试验箱600和称重箱100之间的密封连接，可以通过螺接、铆接、粘结等方式实现，只需满足能够实现良好的密封即可。
如图5及图6所示，同理，还可以设置第三密封套900，第三密封套900设有供密封部和承托部330穿过的第六通孔910，将第三密封套900设置在第一通孔120内，升降台410带动承托件300上升至最高位置时，第一密封部412可以与第三密封套900密封配合。如图9所示，当然，升降台410带动承托件300上升至最高位置时，第一密封部412也可以与第二密封套800密封配合。
需要说明的是，“某体”、“某部”可以为对应“构件”的一部分，即“某体”、“某部”与该“构件的其他部分”一体成型制造；也可以与“构件的其他部分”可分离的一个独立的构件，即“某体”、“某部”可以独立制造，再与“构件的其他部分”组合成一个整体。本申请对上述“某体”、“某部”的表达，仅是其中一个实施例，为了方便阅读，而不是对本申请的保护的范围的限制，只要包含了上述特征且作用相同应当理解为是本申请等同的技术方案。
需要说明的是，本申请“单元”、“组件”、“机构”、“装置”所包含的构件亦可灵活进行组合，即可根据实际需要进行模块化生产，以方便进行模块化组装。本申请对上述构件的划分，仅是其中一个实施例，为了方便阅读，而不是对本申请的保护的范围的限制，只要包含了上述构件且作用相同应当理解是本申请等同的技术方案。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。本发明中使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”、“设置于”、“固设于”或“安设于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。进一步地，当一个元件被认为是“固定传动连接”另一个元件，二者可以是可拆卸连接方式的固定，也可以不可拆卸连接的固定，能够实现动力传递即可，如套接、卡接、一体成型固定、焊接等，在现有技术中可以实现，在此不再累赘。当元件与另一个元件相互垂直或近似垂直是指二者的理想状态是垂直，但是因制造及装配的影响，可以存在一定的垂直误差。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。本文所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
还应当理解的是，在解释元件的连接关系或位置关系时，尽管没有明确描述，但连接关系和位置关系解释为包括误差范围，该误差范围应当由本领域技术人员所确定的特定值可接受的偏差范围内。例如，“大约”、“近似”或“基本上”可以意味着一个或多个标准偏差内，在此不作限定。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种称量装置，其特征在于，包括：
    称重箱，所述称重箱设有容纳腔及与所述容纳腔连通的第一通孔；
    称重元件，所述称重元件设置于所述容纳腔内，所述称重元件设有对应所述第一通孔设置的称量体；
    承托件，所述承托件设有靠近所述称重元件设置的称量端、及远离所述称量端设置的承托端，所述承托件穿设于所述第一通孔内，所述承托件能够沿所述第一通孔的轴向往复移动，且所述承托件的外壁与所述第一通孔的内壁间隔设置；
    升降组件，所述升降组件用于带动所述承托件沿所述第一通孔的轴向往复移动，使所述称量端与所述称重体承托配合或分离；及
    供气组件，所述供气组件的供气出口与所述容纳腔连通。
  2. 根据权利要求1所述的称量装置，其特征在于，所述称量体设有第一定位部，所述称量端设有用于与所述第一定位部定位配合的第二定位部。
  3. 根据权利要求2所述的称量装置，其特征在于，所述第一定位部设有第一锥形槽，所述第二定位部设有用于与所述第一锥形槽定位配合的第一定位锥体；或所述第一定位部设有第二定位锥体，所述第二定位部设有用于与所述第二定位锥体定位配合的第二锥形槽。
  4. 根据权利要求1至3任一项所述的称量装置，其特征在于，所述升降组件包括升降台及用于带动所述升降台升降的伸缩件，所述升降台设置于所述称量体的上方，所述升降台设有对应所述第一通孔设置的第二通孔，所述承托件的侧壁设有用于与所述升降台承托配合的承托部，且所述承托部设置于所述称量端与所述承托端之间。
  5. 根据权利要求4所述的称量装置，其特征在于，所述承托部设有与所述容纳腔及所述第一通孔均连通的第一气流通孔，所述升降台的顶面设有第一密封部，所述第一密封部能够与所述容纳腔的内壁密封配合；和/或所述承托件设有与所述容纳腔及所述第一通孔均连通的第二气流通孔。
  6. 根据权利要求1至3任一项所述的称量装置，其特征在于，所述供气组件包括供气管道、及用于控制所述供气管道的导通或截止的第一开关元件，所述供气管道的出气口与容纳腔连通。
  7. 一种称量系统，其特征在于，包括：
    如权利要求1至6任一项所述的称量装置；及
    试验箱，所述试验箱与所述称重箱相对间隔设置，所述试验箱设有试验腔及连通所述试验腔的第三通孔，其中，所述承托端设置于所述试验腔内。
  8. 根据权利要求7所述的称量系统，其特征在于，所述承托件的外壁设有用于密封所述第三通孔的第二密封部。
  9. 根据权利要求8所述的称量系统，其特征在于，所述第二密封部包括设置于所述承托件的外壁的密封锥体，所述密封锥体用于与所述第三通孔密封配合；或所述第二密封部包括设置于所述承托件的外壁的密封凸缘，所述密封凸缘用于与所述试验箱的外壁密封贴合。
  10. 根据权利要求8所述的称量系统，其特征在于，所述称量系统还包括第一密封套，所述第一密封套设置于所述第三通孔内，所述第一密封套设有供所述承托件穿过的第四通孔，所述第二密封部用于密封所述第四通孔；或所述称量系统还包括第二密封套及第二开关元件，所述第二密封套设置于所述试验箱与所述称重箱之间，且所述第二密封套与所述试验箱及所述称重箱均密封连接，所述第二密封套设有供所述承托件穿过的第五通孔、及与所述第五通孔连通的排气通孔，所述第二开关元件用于控制所述排气通孔与外界的导通或截止。
PCT/CN2021/080466 2021-02-02 2021-03-12 称量系统及称量装置 WO2022165916A1 (zh)

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