CN202402946U - Controlled magnetization inflating gun - Google Patents
Controlled magnetization inflating gun Download PDFInfo
- Publication number
- CN202402946U CN202402946U CN2011204568909U CN201120456890U CN202402946U CN 202402946 U CN202402946 U CN 202402946U CN 2011204568909 U CN2011204568909 U CN 2011204568909U CN 201120456890 U CN201120456890 U CN 201120456890U CN 202402946 U CN202402946 U CN 202402946U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- inner core
- valve
- gun
- jig arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
A controlled magnetization inflating gun includes a gun head, a gun hook, a cylinder, a main gas path, and an auxiliary gas path, wherein the main gas path and the auxiliary gas path are both placed in a cylinder tail seat; the gun hook consists of two clamping arms which are hinged on left and right sides of a cylinder top seat respectively through rotating shafts; and one clamping arm is equipped with a direct current coil or a permanent magnet, while the other clamping arm is equipped with an alternating current coil. The controlled magnetization inflating gun realizes valve opening and closing by an electromagnetic field having specific parameters, the anti-counterfeiting effect is good, the controlled magnetization inflating gun is safe and reliable, the applicable rang is wide, and the controlled magnetization inflating gun facilitates realization of period detection to pressure containers, and mandatory management of scrapping expired pressure containers.
Description
Technical field
The utility model is related to the apparatus of pressurized container inflation, particularly a kind of controlled magnetization charge gun.
Background technique
At industry and civil area, often to use various pressurized containers, like liquified petroleum gas cylinder, acetylene cylinder, propane cylinder etc.; They all have the sense cycle and the working life of regulation, and according to industry standard, these gas cylinders (gas tank) should be accepted periodic inspection and regularly scrap; But in the application of reality; Minority of peoples do not examine expiring or the defective gas cylinder that exceeds the time limit not scrap is put in the circulation under interests drive, thereby cause the safety in the use to draw trouble.Gas cylinder is the assets of industry and enterprise, if the input of new bottle can not reflux reliably, with the loss that causes enterprise assets.The drive manner that this Asset Attributes can not reliably guarantee makes the new bottle of enterprise (gas tank) input, periodic inspection lose the interests assurance, and this has also more aggravated the confusion of gas cylinder management.In order to prevent the appearance of above-mentioned situation, a lot of enterprises have taked the way to manage of oneself, stick on bar code for example for gas cylinder (gas tank), discern the content of bar code when inflating at every turn.Please with reference to Fig. 1, Fig. 2, the top of gas cylinder 1 is equipped with valve 2, and during inflation, using the bar code fetch equipment to scan bar code, just can to use charge gun 3 be that gas cylinder 1 is inflated.Gas cylinder 1 can be various pressurized containers such as liquified petroleum gas cylinder, acetylene cylinder, propane cylinder.Please with reference to Fig. 3, charge gun 3 by rifle head 4, rifle collude 5, cylinder 6, main gas circuit, auxiliary air passage form, main gas circuit, auxiliary air passage all are arranged in the tailstock 9 of cylinder 6; The bottom of tailstock 9 is provided with main gas circuit valve 7, auxiliary air passage valve 8, on tailstock 9 outer walls control valve 10 is installed, and control valve 10 is used to control the conducting of auxiliary air passage and end; Rifle collude 5 be arranged on rifle head 4 a side, it is 5 affixed with the footstock 25 of cylinder 6 that rifle colludes, after the auxiliary air passage conducting; Move on the rifle head 4; Stretch in the valve nozzle 11 of valve 2, open the air pump of main gas circuit then, just can realize inflation.
But the technical threshold of bar code anti-counterfeit is lower, and protection effect is limited, is forged easily.Do not have one between bar code anti-counterfeit sign and the gas cylinder, one-to-one correspondence, paste bar code on the gas cylinder of scrapping just can aerating, adulterate; Therefore, the enterprise that has proposes a kind of improved practice, is exactly the magneto valve to be installed for gas cylinder 1; Please with reference to Fig. 4, the magneto valve is on traditional valve 2, to improve to obtain, and has kept the valve body 12 and handle 13 on valve 2 tops; In the valve body 12 spool is installed; Handle 13 is connected with spool through screw rod, and handle with sleeve 13 can make spool rise or descend, thereby opens or closes the path between valve body 12 and the valve nozzle 11.The bottom of valve 2 is cavitys 14, and valve pocket 15 is installed in the cavity 14, and the middle part of valve pocket 15 has vertical through hole, and through hole has constituted valve port 16, and the end face of valve pocket 15 is an inclined-plane 17, is placed with valve block 18 on this inclined-plane 17.Valve block 18 is processed by the iron plate (steel disc) of an easy magnetization and easy degaussing, during aerating, use special-purpose charge gun; Permanent magnet is installed on the charge gun; When using charge gun to inflate, rely on the permanent magnet magnetization valve block on the charge gun, valve block 18 is held as gas cylinder; Make valve block 18 move to working position (enable possition) from initial position (operating position); After inflation was accomplished, (enable possition) turned back to initial position (operating position) to valve block 18 from the working position under action of gravity, accomplished the work of inflation.Though the magneto valve has solved and gas cylinder between one, one-to-one correspondence,, do not solve false proof problem; The magneto valve opening is more or less freely, and minority lawless person is placed on a side of gas cylinder valve with permanent magnet, just might valve block be opened; Just can inflate with common charge gun again for gas cylinder; To gas cylinder input circulation expired even that scrap again, not only caused safety to draw trouble, and destroyed the management order of industry.
So common charge gun, only the charge gun of permanent magnet (or DC electromagnet) being installed all can not the false proof problem of fine solution.
The model utility content
For addressing the above problem; The purpose of the utility model is to provide a kind of controlled magnetization charge gun; Use the opening and closing of the interior valve block of electromagnetic field realization valve of special parameter, antifalse effect is good, and is safe and reliable; Applied widely, help to realize the cycle detection to pressurized container, the mandatory management of exceeding the time limit to scrap.
For realizing above-mentioned purpose, the utility model adopts following technological scheme:
A kind of controlled magnetization charge gun; Comprise that rifle head, rifle collude, cylinder, main gas circuit, auxiliary air passage; Main gas circuit, auxiliary air passage all are arranged in the cylinder tailstock, it is characterized in that: rifle colludes by two jig arm and constitutes, and these two jig arm are hinged on the left side and the right side of cylinder footstock respectively through rotating shaft; One of them jig arm is equipped with dc coil or permanent magnet, and another jig arm is equipped with AC coil.
Be provided with piston, inner core, Packing spring, restoring spring in the said cylinder, inner core has epicoele and cavity of resorption, links to each other through taper hole between epicoele and the cavity of resorption; The bottom and the piston of inner core are affixed, and the top of inner core and rifle head are and are slidingly matched, and the bottom of rifle head is connected with guide rod; Guide rod passes the epicoele of inner core, stretches in the cavity of resorption of inner core, and the lower end of guide rod is provided with sealing gasket; Sealing gasket matches with said taper hole, and Packing spring is arranged in the epicoele of inner core, and restoring spring is arranged in the cylinder; Packing spring is sleeved on the guide rod outside; Restoring spring is sleeved on the outside of inner core, and the intake and exhaust chamber of cylinder is communicated with auxiliary air passage, and the cavity of resorption of inner core is communicated with main gas circuit through telescopic flexible pipe.
The innovation part of the utility model is:
With the valve block that can be made into pre-buried inductor coil that constitutes by iron plate or steel disc in the gas cylinder by the valve block of permanent magnet magnetization and degaussing; Still adopt valve block as valve opening and the executive component of closing; But valve block itself does not have magnetic; Can not be magnetized and degaussing by permanent magnet, and will use the excitation field of the charge gun of the utility model to magnetize, thereby increase antifalse effect.
The inner pre-buried inductor coil of valve block; Inductor coil is under the effect of the excitation field (alternating electromagnetic field) that charge gun applies; Produce induced current, this induced current becomes the direct current of unidirectional pulsation through the rectification of rectification circuit; The direct current of this unidirectional pulsation produces the induction field of constant direction, and the direction of induction field is by the positive and negative electrode direction decision of Rectified alternating current.
After inductor coil has produced induction field; Driving magnetic field can make inductor coil (together with valve block) move to the working position from initial position; Or turn back to initial position from the working position, and mobile direction is by the decision of the corresponding relation between induction field N, the S utmost point and driving magnetic field N, the S utmost point, and driving magnetic field is made up of dc coil; Change the energising direction of dc coil, just can change driving magnetic field N, S extreme direction.Utilize the displacement of valve block, accomplish the opening and closing of valve.
Excitation field is produced by AC coil, and AC coil has specific parameter, comprises the number of turn, voltage rating, rated current and rated frequency; Technical threshold is high; Be difficult to forge, excitation field cooperates the opening and closing that realize valve with driving magnetic field, and protection effect is good; Safe and reliable, applied widely.Can guarantee inflatable safety, the lawless person is had not yet found openings to exploit, stop to expire in the defective gas cylinder input circulation use of not examining or exceeding the time limit not scrap, eliminate safety and draw trouble.
Description of drawings
Fig. 1 is the form structure schematic representation of gas cylinder.
Fig. 2 uses the structural representation of common charge gun as the gas cylinder inflation.
Fig. 3 is the partial enlarged drawing of overlooking of Fig. 2.
Fig. 4 is the structural representation that has installed the valve of valve block additional.
Fig. 5 lays the induction coil configuration schematic representation in the valve block.
Fig. 6 is the charge gun embodiment's one of the utility model a structural representation.
Fig. 7 is that the charge gun of use the utility model is the structural representation that has installed the valve inflation of valve block shown in Figure 5 additional, is original state.
Fig. 8 is that the charge gun of use the utility model is the structural representation that has installed the valve inflation of valve block shown in Figure 5 additional, for being about to carry out inflated condition.
Fig. 9 is that the charge gun of use the utility model is the structural representation that has installed the valve inflation of valve block shown in Figure 5 additional, is inflated condition.
Figure 10 is the charge gun embodiment's two of the utility model a structural representation.
Embodiment
Label among the figure
1 gas cylinder, 2 valves, 3 charge guns
4 rifle heads, 5 rifles collude
6 cylinders, 7 main gas circuit valve 8 auxiliary air passage valves
9 tailstocks, 10 control valves, 11 valve nozzles
12 valve bodies, 13 handles, 14 cavitys
15 valve pockets, 16 valve ports, 17 inclined-planes
18 valve blocks, 19 epicoeles, 20 cavity of resorptions
21 left jig arm 22 right jig arm 23 rotating shafts
24 rotating shafts, 25 footstocks, 26 pistons
27 inner cores, 28 Packing springs, 29 restoring springs
30 taper holes
31 dc coils, 32 AC coils, 33 flexible pipes
34 guide rods, 35 sealing gaskets, 36 intake and exhaust chambeies
37 nuts, 38 permanent magnets, 39 inductor coils
40 head ends, 41 tail ends, 42 rectification circuits
43 side openings
Please with reference to Fig. 6, Fig. 7, the utility model is a kind of controlled magnetization charge gun 3, comprises that rifle head 4, rifle collude 5, cylinder 6, main gas circuit, auxiliary air passage; Main gas circuit, auxiliary air passage all are arranged in the tailstock 9 of cylinder 6; The bottom of tailstock 9 is provided with main gas circuit valve 7, auxiliary air passage valve 8, on tailstock 9 outer walls control valve 10 is installed, and control valve 10 is used to control the conducting of auxiliary air passage and end; Rifle colludes 5 and is made up of left and right jig arm 21,22; Left side jig arm 21 is hinged on cylinder 6 footstocks 25 left sides through rotating shaft 23, and right jig arm 22 is hinged on cylinder 6 footstocks 25 right sides through rotating shaft 24, on the left jig arm 21 dc coil 31 is installed; On the right jig arm 22 AC coil 32 is installed, left and right jig arm 21,22 is all processed by permeability magnetic material.Be provided with piston 26, inner core 27, Packing spring 28, restoring spring 29 in the cylinder 6, inner core 27 has epicoele 19 and cavity of resorption 20, links to each other through taper hole 30 between epicoele 19 and the cavity of resorption 20; The bottom of inner core 27 and piston 26 are affixed, and the top of inner core 27 and rifle head 4 are and are slidingly matched, and the bottom of rifle head 4 is connected with guide rod 34; Guide rod 34 passes the epicoele 19 of inner core, stretches in the cavity of resorption 20 of inner core, and the lower end of guide rod 34 is provided with sealing gasket 35; Sealing gasket 35 is fixing by nut 37, and sealing gasket 35 matches with taper hole 30, and Packing spring 28 is arranged in the epicoele 19 of inner core; Restoring spring 29 is arranged in the cylinder 6, and Packing spring 28 is sleeved on guide rod 34 outsides, and restoring spring 29 is sleeved on the outside of inner core 27; The intake and exhaust chamber 36 of cylinder 6 is communicated with auxiliary air passage, and the cavity of resorption 20 of inner core is communicated with main gas circuit through telescopic flexible pipe 33.
The charge gun 3 of the utility model can be given the gas cylinder that the formula valve that magnetizes has been installed inflation; The formula that magnetizes valve is substantially the same with the structure of magneto valve shown in Figure 4, and difference is: valve block 18 is processed by non-magnetic material, please with reference to Fig. 5; Be furnished with inductor coil 39 in the valve block 18; The head end 40 and the tail end 41 of inductor coil 39 link together through rectification circuit 42, thereby constitute closed loop, and inductor coil 39 is arranged around the edge of valve block 18.
During inflation; Clamp valve 2 from both sides with the left and right jig arm of charge gun 3 21,22; The left jig arm 21 of charge gun provides driving magnetic field; Driving magnetic field can be produced by the dc coil 31 that is installed on the left jig arm 21, and is as shown in Figure 7, also can produce shown in figure 10 by the permanent magnet 38 that is installed on the left jig arm 21.Right jig arm 22 provides excitation field, and excitation field is produced by the AC coil 32 that is installed on the right jig arm 22.Left and right jig arm 21,22 is all processed by permeability magnetic material.
Through control circuit AC coil 32 is switched on; Make the inductor coil 39 in the valve block 18 produce induced current; This induced current becomes unidirectional Rectified alternating current through rectification circuit 42 rectifications, and this unidirectional Rectified alternating current produces the induction field of constant direction; The induction field direction is by the positive and negative electrode direction decision of Rectified alternating current, and rectification circuit 42 can be made up of diode.
Give dc coil 31 energisings of left jig arm 21 then, dc coil 31 produces the driving magnetic field of single direction, produces attraction force between driving magnetic field and the induction field; Attract inductor coil 39 together with valve block 18 upset displacements, move to the working position, make valve port 16 unimpeded from initial position; Charge gun 3 can be to gas cylinder 1 aerating; The direction of valve block 18 upset displacements is utilized the displacement of valve block 18 by the decision of the corresponding relation between induction field N, the S utmost point and driving magnetic field N, the S utmost point, accomplishes the unlatching of valve; During valve closing, the energising direction that only needs to change dc coil 31 gets final product.Let valve block 18 reset, valve block 18 also can rely on the gravity reduction of self, moves to initial position from the working position, and valve port 16 is closed, and charge gun 3 can not be to gas cylinder 1 aerating.Please with reference to Figure 10, driving magnetic field also can be provided by permanent magnet 38, and mounting permanent magnet 38 or dc coil 31 can provide driving magnetic field on the left jig arm 21.After valve block 18 is opened, main gas circuit valve 7 is connected with source of the gas (treating the source of the gas of aerating), auxiliary air passage valve 8 is connected with air compressor, press control valve 10; Open auxiliary air passage, in the intake and exhaust chamber 36 of cylinder 6, charge into pressurized air, at this moment piston 26 overcomes on the elastic force of restoring spring 29 and moves, and promotes to move on the inner core 27; Move past in the journey on the inner core 27, because the elastic force effect of Packing spring 28, so rifle head 4 also moves in the meeting; Stretch in the valve nozzle 11, when rifle head 4 overlaps with valve nozzle 11 fully, as shown in Figure 8; At this moment just become inflated condition soon, please with reference to Fig. 9, after auxiliary air passage continues in the intake and exhaust chamber 36 of cylinder 6, to charge into pressurized air; Piston 26 continues to promote inner cores 27, and inner core 27 overcomes on the elastic force of Packing spring 28 and moves, and the slit occurs between sealing gasket 35 and the taper hole 30; At this moment the air pump of source of the gas (treating the source of the gas of aerating) is opened, gas gets into the cavity of resorption 20 of inner core 27 through flexible pipe 33; Get into the epicoele 19 of inner core 27 then from taper hole 30, the side opening 43 through rifle head 4 lower ends gets in the rifle head 4 again, just can be gas cylinder 1 inflation.
Excitation field is produced by the AC coil 32 of charge gun, and AC coil 32 has specific parameter, comprises the number of turn, voltage rating, rated current and rated frequency; Technical threshold is high, is difficult to forge, and cooperates with dc coil 31 or permanent magnet 38; Realize the opening and closing of valve; Antifalse effect is good, and is safe and reliable, applied widely.Can guarantee inflatable safety, the lawless person is had not yet found openings to exploit, stop to expire in the defective gas cylinder input circulation use of not examining or exceeding the time limit not scrap, eliminate safety and draw trouble.
Claims (2)
1. controlled magnetization charge gun; Comprise that rifle head, rifle collude, cylinder, main gas circuit, auxiliary air passage; Main gas circuit, auxiliary air passage all are arranged in the cylinder tailstock, it is characterized in that: rifle colludes by two jig arm and constitutes, and these two jig arm are hinged on the left side and the right side of cylinder footstock respectively through rotating shaft; One of them jig arm is equipped with dc coil or permanent magnet, and another jig arm is equipped with AC coil.
2. controlled magnetization charge gun as claimed in claim 1 is characterized in that: be provided with piston, inner core, Packing spring, restoring spring in the said cylinder, inner core has epicoele and cavity of resorption; Link to each other through taper hole between epicoele and the cavity of resorption, the bottom and the piston of inner core are affixed, and the top of inner core and rifle head are and are slidingly matched; The bottom of rifle head is connected with guide rod, and guide rod passes the epicoele of inner core, stretches in the cavity of resorption of inner core; The lower end of guide rod is provided with sealing gasket, and sealing gasket matches with said taper hole, and Packing spring is arranged in the epicoele of inner core; Restoring spring is arranged in the cylinder, and Packing spring is sleeved on the guide rod outside, and restoring spring is sleeved on the outside of inner core; The intake and exhaust chamber of cylinder is communicated with auxiliary air passage, and the cavity of resorption of inner core is communicated with main gas circuit through telescopic flexible pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204568909U CN202402946U (en) | 2011-11-17 | 2011-11-17 | Controlled magnetization inflating gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204568909U CN202402946U (en) | 2011-11-17 | 2011-11-17 | Controlled magnetization inflating gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402946U true CN202402946U (en) | 2012-08-29 |
Family
ID=46700592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204568909U Expired - Lifetime CN202402946U (en) | 2011-11-17 | 2011-11-17 | Controlled magnetization inflating gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202402946U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628516A (en) * | 2012-04-18 | 2012-08-08 | 多立恒（北京）能源技术有限公司 | Vertical liquefied gas cylinder valve |
| CN107356471A (en) * | 2017-08-15 | 2017-11-17 | 塔里木大学 | A kind of and the supporting simple low temperature intelligent temperature control device of direct shear apparatus and method |
| CN113153866A (en) * | 2021-04-27 | 2021-07-23 | 哈尔滨工程大学 | Driving system for underwater ice breaking of high-speed revolving body |
-
2011
- 2011-11-17 CN CN2011204568909U patent/CN202402946U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628516A (en) * | 2012-04-18 | 2012-08-08 | 多立恒（北京）能源技术有限公司 | Vertical liquefied gas cylinder valve |
| CN107356471A (en) * | 2017-08-15 | 2017-11-17 | 塔里木大学 | A kind of and the supporting simple low temperature intelligent temperature control device of direct shear apparatus and method |
| CN113153866A (en) * | 2021-04-27 | 2021-07-23 | 哈尔滨工程大学 | Driving system for underwater ice breaking of high-speed revolving body |
| CN113153866B (en) * | 2021-04-27 | 2022-07-12 | 哈尔滨工程大学 | Driving system for underwater ice breaking of high-speed revolving body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202402946U (en) | Controlled magnetization inflating gun | |
| CN202371264U (en) | Controlled magnetization valve opening and closing mechanism | |
| CN107407439A (en) | For switching the valve of fluid, fire-fighting equipment and method | |
| CN105293395B (en) | A kind of 8200T chemistry product carrier Body section turn-over auxiliary tool | |
| CN108005631A (en) | A kind of modularization without it is differential can switching regulator fracturing sliding bush repeatedly | |
| CN106041907A (en) | Manipulator for transferring cargos on conveyor belts left and right as well as control method thereof | |
| CN206299871U (en) | Disconnecting link formula HTHP zero leakage magnetic valve | |
| CN206545615U (en) | A kind of steel billet marking machine pneumatic system | |
| CN206145236U (en) | Gas bottle valve door and lateral part control structure thereof | |
| CN106594350B (en) | Knife switch type high temperature zero leakage electromagnetic valve | |
| CN106439170A (en) | Electromagnet for variable valve timing system of automobile engine | |
| CN104907168A (en) | Novel permanent magnetic iron removal machine | |
| CN206539471U (en) | The electromagnetic pump of Teflon meson built in a kind of O-ring | |
| CN206513912U (en) | Disconnecting link formula high temperature zero leakage magnetic valve | |
| CN205474027U (en) | Generating line lifting machine frame elasticity capsule fixture device | |
| CN205605932U (en) | Two isolated tee bend reversing solenoid valve | |
| CN206299870U (en) | The normal low temperature zero leakage magnetic valve of disconnecting link formula | |
| CN209638138U (en) | A kind of pneumatic cylinder of adjusting piston | |
| CN207278986U (en) | It is a kind of to limit the LP gas cylinder angle valve for filling structure with built-in anti-fill | |
| CN217421119U (en) | Totally-enclosed anti-theft high-pressure oil well valve | |
| CN205766140U (en) | A kind of conveyer belt goods left and right transship goods mechanical hand | |
| KR20090022568A (en) | Magnetization-demagnetization method and apparatus for a magnet | |
| Zhang et al. | An Active Magnetic Saddle Based on Electro-Permanent Magnetic Adhesion Mechanism | |
| CN207189235U (en) | A kind of frock clamp | |
| CN204043546U (en) | A kind of pick-up unit of quick test ball valve cast valve intracoelomic cavity |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 100102 Beijing city in Chaoyang District Lize Park 106 Building 2 layer 202C-2 Patentee after: Focotex Heng (Beijing) Energy Technology Co Ltd Address before: 100022, room 7, building 3, No. 103 East Canal Road, Chaoyang District, Beijing Patentee before: Focotex Heng (Beijing) Energy Technology Co. Ltd |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200520 Address after: 046000 No.8, Jinxiu street, Changzhi Economic Development Zone, Shanxi Province Patentee after: Shanxi duoliheng Electromechanical Technology Co., Ltd Address before: 100102 Beijing city in Chaoyang District Lize Park 106 Building 2 layer 202C-2 Patentee before: POLYGON (BEIJING) ENERGY TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |