CN215312534U - Test tube lifting device using electric furnace for heating - Google Patents
Test tube lifting device using electric furnace for heating Download PDFInfo
- Publication number
- CN215312534U CN215312534U CN202120686577.8U CN202120686577U CN215312534U CN 215312534 U CN215312534 U CN 215312534U CN 202120686577 U CN202120686577 U CN 202120686577U CN 215312534 U CN215312534 U CN 215312534U
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- heating
- lifting
- test tube
- electric furnace
- adjusting
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 87
- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 241000252254 Catostomidae Species 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 32
- 238000009835 boiling Methods 0.000 description 6
- 238000005485 electric heating Methods 0.000 description 5
- 238000004544 sputter deposition Methods 0.000 description 5
- 101100441413 Caenorhabditis elegans cup-15 gene Proteins 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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Abstract
The utility model discloses a test tube lifting device heated by an electric furnace, which relates to the technical field of test tube heating equipment and aims to solve the technical problems of inconvenience in manual heating and excessive or insufficient heating, and the technical scheme is as follows: the test tube lifting device comprises a heating device and a clamping device, wherein the heating device comprises a lifting part and a heating electric furnace arranged on the lifting part, the lifting part comprises an upper platform and a lower platform, a lifting cylinder is arranged between the upper platform and the lower platform, one end, far away from the upper platform, of the heating electric furnace is a heating end, a temperature control knob and a power line are arranged on the side wall of the heating electric furnace, the clamping device comprises a base, a lifting rod is arranged on the base, a clamping arm is arranged on the lifting rod, and the clamping arm comprises a clamping part and a sliding rod connected with the lifting rod in a sliding mode.
Description
Technical Field
The utility model relates to the technical field of test tube heating equipment, in particular to a test tube lifting device heated by an electric furnace.
Background
In university's laboratory, institute or company research and development department, need heat some reagent in some occasions, for economic consideration to must not purchase large-scale heating operation panel, reagent in many occasions can use the alcohol lamp to the test tube heats, but this kind of traditional heating method needs the people to hold the instrument constantly and press from both sides the test tube, very inconvenient, traditional heating alcohol lamp heating method can not adjust the temperature simultaneously, need the user to be responsible for and judge whether suitable heating distance, thereby the condition that the excessive heating or the heating is not enough appears.
Therefore, on the premise of meeting the economical requirement, a new scheme needs to be provided to solve the problem.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a test tube lifting device which is more convenient to use and can adjust the heating temperature and the heating distance.
The technical purpose of the utility model is realized by the following technical scheme: the utility model provides an application electric stove heating's test tube elevating gear, including heating device and clamping device, heating device includes lift portion and arranges the heating electric stove in the lift portion in, lift portion includes upper mounting plate and lower platform, be equipped with the lift cylinder between upper mounting plate and the lower platform, the one end that the upper mounting plate was kept away from to the heating electric stove is the heating end, the heating electric stove lateral wall is equipped with accuse temperature knob and power cord, clamping device includes the base, be equipped with the lifter on the base, be equipped with the centre gripping arm on the lifter, the centre gripping arm includes the clamping part and slides the slide bar of being connected with the lifter.
By adopting the technical scheme, the heating device for heating the test tube and the clamping device for clamping the test tube are arranged, the heating device comprises a lifting part and a heating electric furnace arranged on the lifting part, the lifting part comprises an upper platform and a lower platform, meanwhile, a lifting cylinder is arranged between the upper platform and the lower platform to control the distance between the upper platform and the lower platform so as to achieve the purpose of adjusting the heating distance of the electric heating furnace, one end of the electric heating furnace far away from the upper platform is a heating end, the clamped test tube is arranged above the heating end to heat, the side wall of the electric heating furnace is provided with a temperature control knob to control the heating temperature, a power line of the electric heating furnace is inserted into a socket to electrify the electric heating furnace, the clamping device comprises a base, a lifting rod and a clamping arm, the base and the lifting rod are integrally connected, the clamping arm comprises a clamping part and a sliding rod, and the sliding rod is connected with the lifting rod in a sliding manner so as to ensure that the sliding rod can move up and down on the lifting rod; when the user used this product, not only can use the clamping part centre gripping test tube in order to liberate both hands, can also reach suitable heating distance through the upper and lower position of adjustment slide bar, in addition, also can further cooperate the heating distance of adjustment test tube through the lift cylinder, in order to solve the test tube reagent more full or the reagent boiling and the inconvenient condition that removes the slide bar, can also be through the heating temperature of accuse temperature knob with control heating electric stove at last, obtain the best heating effect, the most expensive part of whole product is heating electric stove, for the heating operation panel in the trade, the price advantage is obvious, finally reach the purpose that uses more convenient and adjustable heating temperature and distance under satisfying economic conditions.
The utility model is further configured to: a splash guard is inserted into one end of the lifting rod, and the lifting rod is connected with the splash guard in a sliding interference manner; the splash shield is arranged above the clamping part.
The user is when heating the test tube, reagent in the test tube can be because the boiling and the spill comes sometimes, through adopting above-mentioned technical scheme, it sets up the through-hole splash shield to have inserted the center in lifter one end, the lifter slides the interference with the splash shield and is connected, can guarantee that the splash shield needs certain power just can be slided from top to bottom by the user, the user can handle quiescent condition when not exerting force simultaneously to the splash shield, need place the splash shield in the clamping part top simultaneously, can block the reagent of spill behind the test tube boiling, prevent that reagent from causing the harm to the human body after sputtering, finally reached safe in utilization's purpose.
The utility model is further configured to: one end of the splash guard close to the clamping arm is provided with an annular groove which is positioned right above the clamping part.
By adopting the technical scheme, the annular groove is formed in one end, close to the clamping arm, of the splash shield and is positioned right above the clamping part, so that after the reagent is splashed out of the test tube, the splashed reagent is blocked by the bottom of the annular groove of the splash shield and the inner wall of the annular groove, the transverse sputtering range of the reagent is further reduced, and the purpose of safe use is achieved.
The utility model is further configured to: the base is provided with an article placing groove which is positioned right below the annular groove; a measuring cup matched with the storage groove is arranged in the storage groove.
Through adopting above-mentioned technical scheme, put the thing recess in the base setting, will put the thing recess and arrange in under the annular groove, place the graduated flask in putting the thing recess simultaneously, consequently when reagent that the splash goes out from annular groove tank bottom or annular groove inner wall low down, can be caught by the graduated flask under it, when preventing that reagent from running to dirty or causing the destruction to the next door environment, also can the person of facilitating the use collects the reagent of sputter, the back selection is fallen back the test tube or is carried out corresponding dosage adjustment according to the volume of sputter department, finally reach clean safety and the more accurate purpose of experiment.
The utility model is further configured to: the slide rod is provided with a slide hole for the lifting rod to pass through, the side wall of the slide rod is provided with a locking screw hole penetrating through the slide hole, and a locking bolt is connected with the inner thread of the locking screw hole.
Through adopting above-mentioned technical scheme, set up the hole of sliding that supplies the lifter to pass at the slide bar, set up the locking screw that runs through to the hole of sliding at the slide bar lateral wall, insert the slide bar to the lifter after again, adjust corresponding height, use the locking bolt to support to the slide bar after passing the locking screw, for the connection of simply sliding, more can guarantee that the slide bar is tightly fixed to the lifter, then prevent the test tube landing, finally reach safe in utilization's purpose.
The utility model is further configured to: the clamping part comprises a first holding arm and a second holding arm, one end of the first holding arm is connected with a first adjusting plate, the first adjusting plate is fixed with a sliding rod, one end of the second holding arm is connected with a second adjusting plate, the first adjusting plate is provided with a first adjusting screw hole, the second adjusting plate is provided with a second adjusting hole, the second adjusting plate is provided with an adjusting screw rod, the adjusting screw rod sequentially penetrates through the second adjusting hole and the first adjusting screw hole, one side, close to the first adjusting plate, of the second adjusting plate is abutted to a limiting nut sleeved on the adjusting screw rod, and one end, far away from the first adjusting plate, of the second adjusting plate is provided with an adjusting knob inserted in the adjusting screw rod.
By adopting the technical scheme, the first adjusting screw hole and the second adjusting hole are respectively formed in the first adjusting plate and the second adjusting plate, threads are arranged on the wall of the first adjusting screw hole, the second adjusting plate is provided with the adjusting screw rod, when the adjusting screw rod is installed, the adjusting screw rod is firstly screwed into the second adjusting hole, after one end of the adjusting screw rod is screwed out, the screwed-out end of the limiting nut from the adjusting screw rod is screwed in, then the adjusting screw rod is continuously screwed into the first adjusting screw hole, then the adjusting knob is inserted into the end, far away from the first adjusting plate, of the adjusting screw rod, and meanwhile, the limiting nut is screwed into the second adjusting plate, so that the adjusting nut and the adjusting knob lock the second adjusting plate; when the user need the not test tube of equidimension of centre gripping, one hand is arranged the test tube in first embracing between the arm and the second and embraces the arm, and back another hand through rotatory adjust knob, reduce or increase between first regulating plate and the second regulating plate adjusting screw length can, finally reached the purpose that convenience of customers and test tube are fixed firmly.
The utility model is further configured to: the base and the lower end surface of the lower platform are both provided with suckers.
Through adopting above-mentioned technical scheme, the terminal surface all sets up the sucking disc under base and lower platform for base and lower platform can be by better fixing on the laboratory table, guarantee the operating stability of this product.
In conclusion, the utility model has the following technical effects that the arrangement of the heating device and the clamping device liberates the hands of a user and is more convenient for the user to adjust the heating temperature and distance; through the arrangement of the splash guard, reagents splashed out after the test tube is boiled can be shielded, the reagent is prevented from being damaged to a human body after being sputtered, and the beneficial effect of safe use is achieved; the arrangement of the annular groove further reduces the transverse sputtering range of the reagent, and enhances the use safety level; through the arrangement of the storage groove and the measuring cup arranged in the storage groove, a user can conveniently collect sputtered reagents while the reagents are prevented from being messy and dirty or damaging the nearby environment, and the beneficial effects of cleanness, safety and more accurate experiment are achieved; through the arrangement of the sliding hole, the locking screw hole and the locking bolt, the sliding rod is ensured to be tightly fixed to the lifting rod, so that the test tube is prevented from sliding off, and the use safety level of the product is enhanced; through the arrangement of the whole structure of the clamping part, the beneficial effects of convenience for users and firm fixation of the test tube are achieved; through the setting of sucking disc for base and lower platform can be better fixed on the laboratory table, have guaranteed the operating stability of this product.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a detailed annotation view of a perspective view of the present invention;
FIG. 3 is a schematic view of a clamp arm according to the present invention;
FIG. 4 is an enlarged view of the structure of the G-section of the present invention;
FIG. 5 is a schematic view of the positions of a first adjusting screw hole and a second adjusting screw hole of the present invention;
FIG. 6 is a schematic view of a splash shield according to the present invention.
Description of the drawings: 1. a heating device; 2. a clamping device; 3. a lifting part; 31. an upper platform; 32. a lower platform; 4. heating an electric furnace; 5. a lifting cylinder; 6. a heating end; 7. a temperature control knob; 8. a power line; 9. a base; 10. a lifting rod; 11. a clamp arm; 111. a clamping portion; 112. a slide bar; 12. a splash plate; 13. an annular groove; 14. a storage groove; 15. a measuring cup; 16. a sliding hole; 17. locking the screw hole; 18. locking the bolt; 19. a first arm; 20. a second arm; 21. a first adjusting plate; 22. a second adjusting plate; 23. a first adjusting screw hole; 24. a second adjustment aperture; 25. adjusting the screw rod; 26. a limit nut; 27. adjusting a knob; 28. and (4) sucking discs.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in the drawing, a test tube elevating gear of application electric stove heating, including heating device 1 and clamping device 2, heating device 1 includes lifting unit 3 and arranges heating electric stove 4 on lifting unit 3 in, lifting unit 3 includes upper mounting plate 31 and upper mounting plate 32, be equipped with lift cylinder 5 between upper mounting plate 31 and the upper mounting plate 32, the one end that upper mounting plate 31 was kept away from to heating electric stove 4 is heating end 6, 4 lateral walls of heating electric stove are equipped with accuse temperature knob 7 and power cord 8, clamping device 2 includes base 9, be equipped with lifter 10 on the base 9, be equipped with centre gripping arm 11 on the lifter 10, centre gripping arm 11 includes clamping part 111 and the slide bar 112 of being connected that slides with lifter 10.
The heating device comprises a heating device 1 for heating test tubes and a clamping device 2 for clamping the test tubes, wherein the heating device 1 comprises a lifting part 3 and a heating electric furnace 4 arranged on the lifting part 3, the lifting part 3 comprises an upper platform 31 and an upper platform 32, a lifting cylinder 5 is arranged between the upper platform 31 and the upper platform 32 at the same time, so as to control the distance between the upper platform 31 and the upper platform 32 and achieve the purpose of adjusting the heating distance of the heating electric furnace 4, one end of the heating electric furnace 4, which is far away from the upper platform 31, is a heating end 6, the clamped test tubes are arranged above the heating end 6 to be heated, a temperature control knob 7 is arranged on the side wall of the heating electric furnace 4 to control the heating temperature, a power wire 8 of the heating electric furnace 4 is inserted into a socket to electrify the heating electric furnace 4, the clamping device 2 comprises a base 9, a lifting rod 10 and a clamping arm 11, the base 9 and the lifting rod 10 are integrally connected, the clamping arm 11 comprises a clamping part 111 and a sliding rod 112, the sliding rod 112 is connected with the lifting rod 10 in a sliding manner so as to ensure that the sliding rod 112 can move in the up-and-down direction of the lifting rod 10; when the user used this product, not only can use the 111 centre gripping test tubes of clamping part in order to liberate both hands, can also reach suitable heating distance through the upper and lower position of adjustment slide bar 112, in addition, also can further cooperate the heating distance of adjustment test tube through lift cylinder 5, in order to solve the test tube reagent and more full or the reagent boiling and the inconvenient circumstances that removes slide bar 112, can also be through the heating temperature of accuse temperature knob 7 with control heating electric stove 4 at last, obtain the best heating effect, the most expensive part of whole product is heating electric stove 4, for the heating operation panel in the trade, the price advantage is obvious, finally reach the purpose that uses more convenient and adjustable heating temperature and distance under satisfying economic conditions.
A splash guard 12 is inserted into one end of the lifting rod 10, and the lifting rod 10 is connected with the splash guard 12 in a sliding interference manner; the splash plate 12 is placed above the clamping portion 111.
The user is when heating the test tube, reagent in the test tube can be because the boiling and the spill comes sometimes, it sets up through-hole splash shield 12 to have inserted the center in lifter 10 one end, lifter 10 slides the interference with splash shield 12 and is connected, can guarantee that splash shield 12 needs certain power just can be slided from top to bottom by the user, splash shield 12 can handle quiescent condition when the user does not exert force simultaneously, the clamping part 111 top is arranged in to splash shield 12 simultaneously, can block the reagent of spill behind the test tube boiling, cause the harm to the human body after preventing reagent sputtering.
One end of the splash plate 12 close to the holding arm 11 is provided with an annular groove 13, and the annular groove 13 is located right above the holding portion 111.
Since the annular groove 13 is formed at one end of the splash shield 12 close to the holding arm 11 and the annular groove 13 is located right above the holding portion 111, after the reagent is splashed from the test tube, the splashed reagent is not only blocked by the bottom of the annular groove 13 of the splash shield 12, but also blocked by the inner wall of the annular groove 13, thereby further reducing the transverse sputtering range of the reagent.
The base 9 is provided with an article holding groove 14, and the article holding groove 14 is positioned right below the annular groove 13; a measuring cup 15 matched with the storage groove 14 is arranged in the storage groove.
The base 9 is provided with the storage groove 14, the storage groove 14 is arranged under the annular groove 13, and the measuring cup 15 is arranged in the storage groove 14, so that when the sputtered reagent falls downwards from the bottom of the annular groove 13 or the inner wall of the annular groove 13, the reagent can be received by the measuring cup 15 under the reagent, the reagent is prevented from running and being polluted randomly or damaging the nearby environment, a user can collect the sputtered reagent conveniently, and then the reagent is selected to be poured back to the test tube or corresponding dosage adjustment is carried out according to the amount of the sputtered part.
The sliding rod 112 is provided with a sliding hole 16 for the lifting rod 10 to pass through, the side wall of the sliding rod 112 is provided with a locking screw hole 17 penetrating through the sliding hole 16, and a locking bolt 18 is connected with the inner thread of the locking screw hole 17.
Set up the hole 16 that slides that supplies lifter 10 to pass at slide bar 112, set up the locking screw 17 that runs through to slide hole 16 at slide bar 112 lateral wall, insert slide bar 112 to lifter 10 back again, adjust corresponding height, use locking bolt 18 to support to slide bar 112 after passing locking screw 17, for the connection of simply sliding, more can guarantee that slide bar 112 is tightly fixed to lifter 10, prevent then the test tube landing.
Clamping part 111 embraces arm 19 and second including first armful of arm 20, first armful of arm 19 one end is connected with first regulating plate 21, first regulating plate 21 is fixed with slide bar 112, second armful of arm one end is connected with second regulating plate 22, first regulating plate 21 is equipped with first regulation screw 23, second regulating plate 22 is equipped with second regulation hole 24, second regulating plate 22 is equipped with adjusting screw 25, adjusting screw 25 runs through second regulation hole 24 and first regulation screw 23 in proper order, one side butt joint that second regulating plate 22 is close to first regulating plate 21 has set in adjusting screw 25's stop nut 26, the one end that first regulating plate 21 was kept away from to second regulating plate 22 is equipped with the adjust knob 27 of inserting in adjusting screw 25.
A first adjusting screw hole 23 and a second adjusting hole 24 are respectively formed in the first adjusting plate 21 and the second adjusting plate 22, threads are formed in the wall of the first adjusting screw hole 23, an adjusting screw rod 25 is arranged in the second adjusting plate 22, when the adjusting screw rod 25 is installed, the adjusting screw rod 25 is screwed into the second adjusting hole 24, after one end of the adjusting screw rod 25 is screwed out, a limiting nut 26 is screwed into one end, screwed out from the adjusting screw rod 25, of the adjusting screw rod 25, the adjusting screw rod 25 is screwed into the first adjusting screw hole 23, then an adjusting knob is inserted into one end, far away from the first adjusting plate 21, of the adjusting screw rod 25, and the limiting nut 26 is screwed into the second adjusting plate 22, so that the adjusting nut and the adjusting knob 27 lock the second adjusting plate 22; when a user needs to clamp test tubes with different sizes, the test tube is placed between the first holding arm 19 and the second holding arm 20 by one hand, and the length of the adjusting screw 25 between the first adjusting plate 21 and the second adjusting plate 22 is reduced or increased by the other hand by rotating the adjusting knob 27.
The lower end surfaces of the base 9 and the upper platform 32 are provided with suckers 28.
The sucking discs 28 are arranged on the lower end faces of the base 9 and the upper platform 32, so that the base 9 and the upper platform 32 can be better fixed on a laboratory table, and the operation stability of the product is guaranteed.
The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides an application electric stove heating's test tube elevating gear which characterized in that: comprises a heating device and a clamping device; the heating device comprises a lifting part and a heating electric furnace arranged on the lifting part, the lifting part comprises an upper platform and a lower platform, a lifting cylinder is arranged between the upper platform and the lower platform, one end of the heating electric furnace far away from the upper platform is a heating end, and the side wall of the heating electric furnace is provided with a temperature control knob and a power line; the clamping device comprises a base, a lifting rod is arranged on the base, a clamping arm is arranged on the lifting rod, and the clamping arm comprises a clamping portion and a sliding rod connected with the lifting rod in a sliding mode.
2. The test tube lifting device heated by the electric furnace according to claim 1, wherein: a splash guard is inserted into one end of the lifting rod, and the lifting rod is connected with the splash guard in a sliding interference manner; the splash shield is arranged above the clamping part.
3. The test tube lifting device heated by the electric furnace according to claim 2, wherein: and one end of the splash guard, which is close to the clamping arm, is provided with an annular groove, and the annular groove is positioned right above the clamping part.
4. The test tube lifting device heated by the electric furnace according to claim 1, wherein: the base is provided with an article placing groove, and the article placing groove is positioned right below the annular groove; a measuring cup matched with the storage groove is arranged in the storage groove.
5. The test tube lifting device heated by the electric furnace according to claim 1, wherein: the sliding rod is provided with a sliding hole for the lifting rod to pass through; the side wall of the sliding rod is provided with a locking screw hole penetrating through the sliding hole, and a locking bolt is connected in the locking screw hole in a threaded manner.
6. The test tube lifting device heated by the electric furnace according to claim 1, wherein: the clamping part comprises a first holding arm and a second holding arm, one end of the first holding arm is connected with a first adjusting plate, the first adjusting plate is fixed with the sliding rod, and one end of the second holding arm is connected with a second adjusting plate; the first adjusting plate is provided with a first adjusting screw hole, and the second adjusting plate is provided with a second adjusting hole; the second adjusting plate is provided with an adjusting screw rod, and the adjusting screw rod sequentially penetrates through the second adjusting hole and the first adjusting screw hole; one side butt that the second regulating plate is close to first regulating plate has connect the stop nut who overlaps in adjusting screw, the one end that first regulating plate was kept away from to the second regulating plate is equipped with the adjust knob who inserts in adjusting screw.
7. The test tube lifting device heated by the electric furnace according to claim 1, wherein: the base and the lower end face of the lower platform are both provided with suckers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120686577.8U CN215312534U (en) | 2021-04-06 | 2021-04-06 | Test tube lifting device using electric furnace for heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120686577.8U CN215312534U (en) | 2021-04-06 | 2021-04-06 | Test tube lifting device using electric furnace for heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215312534U true CN215312534U (en) | 2021-12-28 |
Family
ID=79592533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120686577.8U Expired - Fee Related CN215312534U (en) | 2021-04-06 | 2021-04-06 | Test tube lifting device using electric furnace for heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215312534U (en) |
-
2021
- 2021-04-06 CN CN202120686577.8U patent/CN215312534U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211228 |