CN101799360B - Valve element service life tester of single-handle double-control water nozzle - Google Patents
Valve element service life tester of single-handle double-control water nozzle Download PDFInfo
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- CN101799360B CN101799360B CN2010101675472A CN201010167547A CN101799360B CN 101799360 B CN101799360 B CN 101799360B CN 2010101675472 A CN2010101675472 A CN 2010101675472A CN 201010167547 A CN201010167547 A CN 201010167547A CN 101799360 B CN101799360 B CN 101799360B
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Abstract
The invention provides a valve element service life tester of a single-handle double-control water nozzle, which belongs to the technical field of machinery and solves the problems of complicated structure, short service life, low testing precision, and the like of the traditional single-handle double-control water nozzle service life testing devices. The valve element service life tester of a single-handle double-control water nozzle comprises a testing table, and a positioning mechanism, a liquid supply system, a rotating mechanism and an executing mechanism are arranged on the testing table, wherein the positioning mechanism can position a workpiece; the liquid supply system is capable of providing testing water for the workpiece;and the executing mechanism which is connected with the valve element of the workpiece and can ensure that the workpiece yields water; the rotating mechanism drives the executing mechanism or the positioning mechanism to rotate to a plurality of set testing angles and/or rotate within a set testing angle range; and when the executing mechanism rotates at the set testing angle and/or within the set testing angle range, the workpiece can yield water. The invention has the advantages of simple structure, convenient operation, high testing precision, and the like.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of valve element service life tester, particularly a kind of valve element service life tester of single-handle double-control water nozzle.
Background technology
Single-handle double-control water nozzle is connected with cold water pipes and hot water pipeline; Rotate the left and right sides angle of single handle in use and just can regulate the height of water temperature; The last lower angle of pulling single handle just can be controlled the size of water flow, use easily, so single-handle double-control water nozzle is widely used in daily life.
Single-handle double-control water nozzle has strict index, before dispatching from the factory, all will pass through detection, and in many test items, the detection in single-handle double-control water nozzle spool life-span is an emphasis.People are in order to make the easy to detect of single-handle double-control water nozzle spool life-span and the accuracy that guarantees to detect; And various pick-up units have been designed; Some has also applied for patent, and for example the Chinese patent document discloses a kind of life testing device for single-handle double-control water nozzle [application number: 200810200526.9; Publication number: CN101358899A]; It comprises vertical testing table frame; Tested water nozzle is fixed on the middle part of frame, and connects the hot and cold water water inlet pipe, and the lifting assembly that moves up and down is set above frame; Lifting assembly is for to be made up of numerical-control motor interlock lead screw pair; The nut of lead screw pair connects the handle of the lower end of long connecting rod, long connecting rod with the tested water nozzle of grip block clamping, and lifting assembly is configured in by on the motor-driven rotating disc of little numerical control, and the long connecting rod two ends are connected with the nut and the grip block of lead screw pair with horizontal pivot pin mode respectively.Startup numerical-control motor drive lead screw pair interlock moves up and down and the motor-driven rotating disc of little numerical control rotates; The handle of tested water nozzle is positioned at the middle position; Motion next time on the numerical-control motor interlock lead screw pair, decimal control motor-driven rotating disc turns to a side point position, and numerical-control motor drives motion next time on the lead screw pair; Decimal control motor-driven rotating disc turns to the opposite side endpoint location; Motion next time on the numerical-control motor interlock lead screw pair, decimal control motor-driven rotating disc turns to the middle position, gets into circulation next time thus.
Though circulating, above-mentioned life testing device for single-handle double-control water nozzle carries out the test of placed in the middle, cold water, hot water; But structure more complicated; Lead screw pair, rotating disc and interlock lead screw pair be arranged so that the test unit overall volume big and have use a period of time the environment of water under after lead screw pair, rotating disc and interlock lead screw pair be prone to get rusty, lack serviceable life.And only spool is positioned at the both sides end points and this three place, middle position tests, and test specification is little, also lacks intermediate link in the test, promptly lacks single handle and when opening, rotates the link that discharges water, and measuring accuracy and effect are undesirable.
Summary of the invention
The objective of the invention is to the problems referred to above that exist in the prior art, provide a kind of simple and compact for structure, testing precision is high and the valve element service life tester of single-handle double-control water nozzle of good test effect.
The object of the invention can be realized through following technical proposal: a kind of valve element service life tester of single-handle double-control water nozzle; Comprise test board; On test board, be provided with the detent mechanism that to locate workpiece; Described test station also is provided with the liquid-supplying system that the test water can be provided for workpiece; It is characterized in that; Also be provided with rotating mechanism on the described test board and link to each other with the workpiece spool and can make the topworks of workpiece water outlet, this rotating mechanism drives topworks or detent mechanism and rotates to the test angle of several settings and/or in the test angle scope of setting, rotate, and is positioned at the test angle of setting and/or when the test angle scope of setting is rotated, can both makes the workpiece water outlet when topworks.
When test; Liquid-supplying system can provide cold water and hot water for workpiece; Even rotating mechanism drives topworks or detent mechanism rotation spool rotates with respect to workpiece, test angle can increase according to the requirement of test index, and the test angle scope also can increase according to the requirement of test index; This sample test machine ability full-scope simulation workpiece spool various states are in actual use tested accurate and effective.
The workpiece that random choose is used for testing in the workpiece after producing well; Workpiece is positioned on the detent mechanism; Begin test set opening time of number of revolutions and topworks of rotating mechanism according to index request after, check after the test completion whether workpiece spool place leaks and just can judge whether this workpiece is qualified.Through just can confirm the number percent of workpiece life-span qualification rate to the test of a plurality of workpiece, simple to operate.
In above-mentioned valve element service life tester of single-handle double-control water nozzle; Described topworks comprises contiguous block with chute and the cylinder that is connected with contiguous block; Be provided with slide block between described contiguous block and the workpiece spool; One end and the workpiece spool of slide block are connected, and the other end of slide block is positioned at chute and is connected with the piston rod of cylinder and chute moves around in the drive lower edge of piston rod.
When the piston rod of cylinder when stretching out state, slide block is vertical with respect to contiguous block, the workpiece spool that is connected with slide block one end is in closure state, workpiece can water outlet; When the piston rod of cylinder during in retracted state, an end of slide block moves along chute, and the other end drives the workpiece spool and opens, the workpiece water outlet.
In above-mentioned valve element service life tester of single-handle double-control water nozzle; Described rotating mechanism comprises motor; Be provided with tubular rotary sleeve between the output shaft of described motor and the contiguous block, described rotary sleeve is connected in the output shaft of motor and the end and the contiguous block of rotary sleeve is connected.The output shaft driven rotary of motor cover rotates together, and rotary sleeve drives contiguous block again and rotates, thereby contiguous block and the slide block that is positioned at its chute rotate the rotation of the workpiece spool of having realized being connected with slide block together.
In above-mentioned valve element service life tester of single-handle double-control water nozzle, described detent mechanism comprises support body of fixing with test board and the supporting seat that fixes with support body, is fixed with workpiece on the described supporting seat.
In above-mentioned valve element service life tester of single-handle double-control water nozzle; Described supporting seat can move and can fix with support body along support body; The adjustable plate that described supporting seat also has the ability fixation workpiece and can move with respect to the pedestal of supporting seat, the moving direction of described supporting seat and the moving direction of adjustable plate are perpendicular.Supporting seat and adjustable plate can both move and moving direction perpendicular, realized being fixed in the horizontal and vertical adjusting of workpiece on the adjustable plate like this, can make workpiece be in correct test position through regulating.
In above-mentioned valve element service life tester of single-handle double-control water nozzle, described rotating mechanism and topworks link with the controller that can control its work respectively, and described controller has the touch outer display screen of ability display parameter and ability input instruction.
In above-mentioned valve element service life tester of single-handle double-control water nozzle; Described liquid-supplying system comprises cold water storage cistern, water supply pump, boiler and heat-exchanger pump; Cooling water inlet and water supply pump and the controller of described water supply pump through cold water pipes UNICOM cold water storage cistern and workpiece links; Hot water inlet and heat-exchanger pump and the controller of described heat-exchanger pump through hot water pipeline UNICOM boiler and workpiece links; All be connected with pressure transducer on described cold water pipes and the hot water pipeline, described pressure transducer and controller link.Touch outer display screen through controller has is checked the force value that pressure transducer imports into; The rotating speed of controller control water supply pump and heat-exchanger pump makes the water flow pressure in cold water pipes and the hot water pipeline reach the test pressure index; Begin test; The force value of cold water pipes and/or hot water pipeline reduces in test process, explains that then leakage has taken place at workpiece spool place, and controller can give the alarm.
Compared with prior art, a kind of valve element service life tester of single-handle double-control water nozzle provided by the invention has the following advantages:
1, this valve element service life tester of single-handle double-control water nozzle can realize that the workpiece spool discharges water in the test angle place unlatching of setting; Can realize again that the workpiece spool is opened in the angular range of setting discharges water; Can simulate workpiece people various states in use like this; Make testing precision high, good test effect.
2, the touch outer display screen that has of the controller in this valve element service life tester of single-handle double-control water nozzle can show the various state parameters of workpiece in the test process, and is comparatively directly perceived, and and can import various parameter instructions through touch outer display screen, easy to operate.
3, the parts of composition rotating mechanism and topworks are few, simple and compact for structure in this valve element service life tester of single-handle double-control water nozzle.
Description of drawings
Fig. 1 is the main TV structure synoptic diagram of this valve element service life tester of single-handle double-control water nozzle.
Fig. 2 is the partial structurtes synoptic diagram of this valve element service life tester of single-handle double-control water nozzle.
Fig. 3 is the structural representation of topworks in this valve element service life tester of single-handle double-control water nozzle.
Among the figure, 1, test board; 2, rotating mechanism; 21, motor; 22, rotary sleeve; 3, topworks; 31, contiguous block; 311, chute; 32, cylinder; 33, slide block; 331, accommodation hole; 4, detent mechanism; 41, support body; 411, track; 42, supporting seat; 421, bolt hole; 43, adjustable plate; 44, screw; 45, bolt; 5, liquid-supplying system; 51, cold water storage cistern; 52, water supply pump; 53, cold water pipes; 54, boiler; 541, electric heater; 55, heat-exchanger pump; 56, hot water pipeline; 57, pressure transducer; 6, cabinet; 7, view window; 8, controller.
Embodiment
Below be specific embodiment of the present invention and combine accompanying drawing, technical scheme of the present invention is done further to describe, but the present invention is not limited to these embodiment.
As depicted in figs. 1 and 2, this valve element service life tester of single-handle double-control water nozzle is made up of parts such as test board 1, rotating mechanism 2, topworks 3, detent mechanism 4 and liquid-supplying systems 5.
Specifically, test board 1, rotating mechanism 2, topworks 3, detent mechanism 4 and liquid-supplying system 5 all are loaded in the cabinet 6, also are provided with the view window 7 that can observe test process on the cabinet 6, and view window 7 is closed and prevented that also the outer of flowing water from spattering in test process.
Test board 1 is provided with the detent mechanism 4 that can locate workpiece; Below test board 1, be provided with the liquid-supplying system 5 that the test water can be provided for workpiece; Also be provided with rotating mechanism 2 on the test board 1 and link to each other with the workpiece spool and can make the topworks 3 of workpiece water outlet; These rotating mechanism 2 drive topworkies 3 or detent mechanism 4 rotate to the test angle of several settings and/or in the test angle scope of setting, rotate; And when topworks 3 is positioned at the test angle of setting and/or when the test angle scope of setting is rotated, can both makes the workpiece water outlet; Rotating mechanism 2 links with the controller that can control its work 8 respectively with topworks 3, and controller 8 has the touch outer display screen of ability display parameter and ability input instruction.In the present embodiment; Rotating mechanism 2 drives topworks's 3 rotations; Set three test angle through controller 8, the test angle when promptly the workpiece spool is in hot water end, placed in the middle, these three positions of cold water end, the quantity of test angle can require set according to test index certainly.
Detent mechanism 4 comprise with the fixing support body 41 of test board 1 and with the supporting seat 42 that support body 41 fixes, be fixed with workpiece on the supporting seat 42.Supporting seat 42 can move and can be fixing with support body 41 along support body 41, and supporting seat 42 also has the adjustable plate 43 of can fixation workpiece and can move with respect to the pedestal of supporting seat 42, and the moving direction of the moving direction of supporting seat 42 and adjustable plate 43 is perpendicular.In the present embodiment, the bottom of supporting seat 42 has groove, and the base plate of support body 41 is embedded in the groove, because support body 41 is fixing with test board 1, supporting seat 42 can move along the base plate of support body 41 when moving supporting seat 42.One sidepiece of supporting seat 42 is equipped with two screws 44, tightens the base plate that screw 44 makes it to be resisted against support body 41 after regulating and has realized the fixing of supporting seat 42.For supporting seat 42 is moved stably; The base plate sidepiece of support body 41 offers track 411; In moving process, need not screw 44 be accomplished and unclamp, the end of screw 44 is not resisted against the base plate of support body 41 and is positioned at track 411, and supporting seat 42 can move also along track 411 and can not come off.Supporting seat 42 also has the adjustable plate 43 of ability fixation workpiece, and adjustable plate 43 has two mounting holes, and the cooling water inlet of workpiece and hot water inlet lay respectively in the mounting hole separately, and the water delivering orifice of workpiece down after installing.Offer twice on the pedestal of supporting seat 42 and be the bolt hole 421 of strip and parallel symmetry; The bolt hole 421 that bolt 45 passes on the pedestal of adjustable plate 43 and supporting seat 42 is connected the adjustable plate 43 and the pedestal of supporting seat 42; When needing to regulate; Unclamp bolt 45 and just can move adjustable plate 43, easy to adjust.The moving direction of the moving direction of supporting seat 42 and adjustable plate 43 is perpendicular, has realized being fixed in the horizontal and vertical adjusting of workpiece on the adjustable plate 43 like this, can make workpiece be in correct test position through regulating.
As shown in Figures 2 and 3; Topworks 3 is positioned at detent mechanism 4 tops; It comprises contiguous block 31 with chute 311 and the cylinder 32 that is connected with contiguous block 31, is provided with slide block 33 between contiguous block 31 and the workpiece spool, and an end of slide block 33 has square accommodation hole 331; The square valve rod of workpiece inserts in the accommodation hole 331; For the fastness that guarantees that slide block 33 is connected with valve rod, a screw 44 passes slide block 33 and tightly is resisted against the wringing fit that the valve rod sidepiece has been realized slide block 33 and valve rod, and slide block 33 these ends are connected with the workpiece spool through valve rod like this.The other end of slide block 33 is positioned at chute 311 and is connected with the piston rod of cylinder 32 and chute 311 moves around in the drive lower edge of piston rod.When the piston rod of cylinder 32 when stretching out state, slide block 33 is vertical with respect to contiguous block 31, the workpiece spool that is connected with slide block 33 1 ends is in closure state, workpiece can water outlet; When the piston rod of cylinder 32 during in retracted state, an end of slide block 33 moves along chute 311, and the other end drives the workpiece spool and opens, the workpiece water outlet.
Rotating mechanism 2 comprises the motor 21 that is fixed on support body 41 tops; Be provided with tubular rotary sleeve 22 between the output shaft of motor 21 and the contiguous block 31; Rotary sleeve 22 is connected in the output shaft of motor 21, rotates with respect to the output shaft of motor 21 in order to prevent rotary sleeve 22, and a bolt 45 runs through the output shaft of rotary sleeve 22 and motor 21; Fastening nut makes it to fit in rotary sleeve 22 outer walls, realized output shaft fixing of rotary sleeve 22 and motor 21 like this.The end of rotary sleeve 22 and contiguous block 31 are connected.During motor 21 work, the output shaft driven rotary cover 22 of motor 21 rotates together, and rotary sleeve 22 drives contiguous block 31 again and rotates, thereby contiguous block 31 and the slide block 33 that is positioned at its chute 311 rotate the rotation of the workpiece spool of having realized being connected with slide block 33 together.
Liquid-supplying system 5 comprises cold water storage cistern 51, water supply pump 52, boiler 54 and heat-exchanger pump 55; Water supply pump 52 links with controller 8 through the cooling water inlet and the water supply pump 52 of cold water pipes 53 UNICOM's cold water storage cisterns 51 and workpiece; Heat-exchanger pump 55 links with controller 8 through the hot water inlet and the heat-exchanger pump 55 of hot water pipeline 56 UNICOM's boilers 54 and workpiece; All be connected with pressure transducer 57 on cold water pipes 53 and the hot water pipeline 56, pressure transducer 57 links with controller 8.Cold water storage cistern 51 is positioned at workpiece below, and test board 1 place offers backflash, and backflash and cold water storage cistern 51 link, and boiler 54 is positioned at cold water storage cistern 51 sides, in be provided with electric heater 541.
The workpiece that random choose is used for testing in the workpiece after producing well; Workpiece is fixed on the adjustable plate 43; And be in correct test position through the mobile workpiece that makes of adjustable plate 43 and supporting base; Import the number of revolutions of rotating mechanism 2 and cycle opening time of topworks 3 according to index request through the outer display screen that controller 8 has; Open cold water pump 52 and heat-exchanger pump 55, and check the force value that pressure transducer 57 imports into through the touch outer display screen that controller 8 has, the rotating speed of controller 8 control water supply pumps 52 and heat-exchanger pump 55 makes cold water pipes 53 and hot water pipeline 56 interior water flow pressure reach the test pressure index.Begin test, the force value of cold water pipes 53 and/or hot water pipeline 56 reduces in test process, explains that then leakage has taken place at workpiece spool place, and controller 8 can give the alarm.
When test, motor 21 is worked in the present embodiment, and output shaft driven rotary cover 22, contiguous block 31, slide block 33 and the workpiece spool of motor 21 turns to the cold water end of workpiece synchronously; In this process, the piston rod of cylinder 32 is in the state of stretching out, and the workpiece spool is closed; When the workpiece valve core rotation arrives the cold water end of workpiece; The piston rod retraction of cylinder 32 drives slide block 33 unlatching workpiece spools and makes the workpiece water outlet, and the piston rod that reaches opening time exhaust hood 32 stretches out, and the workpiece spool is closed; The output shaft of motor 21 driven rotary cover 22, contiguous block 31, slide block 33 and workpiece spool again turns to the middle position of workpiece synchronously; In this process, the piston rod of cylinder 32 is in the state of stretching out, and the workpiece spool is closed; When the workpiece valve core rotation arrives the middle position of workpiece; The piston rod retraction of cylinder 32 drives slide block 33 unlatching workpiece spools and makes the workpiece water outlet, and the piston rod that reaches opening time exhaust hood 32 stretches out, and the workpiece spool is closed; Then driven rotary cover 22, contiguous block 31, slide block 33 and workpiece spool turn to the hot water end of workpiece to the output shaft of motor 21 synchronously again; In this process; The piston rod of cylinder 32 is in the state of stretching out, and the workpiece spool is closed, when the workpiece valve core rotation arrives the hot water end of workpiece; The piston rod retraction of cylinder 32 drives slide block 33 unlatching workpiece spools and makes the workpiece water outlet; The output shaft of motor 21 rotates earlier the hot water end that the cold water end that rotary sleeve 22, contiguous block 31, slide block 33 and workpiece spool are turned to workpiece synchronously transfers back to workpiece again under the situation that the workpiece spool is opened, and the piston rod of cylinder 32 stretches out at this moment, and the workpiece spool is closed; The output shaft of motor 21 is rotated further the cold water end that rotary sleeve 22, contiguous block 31, slide block 33 and workpiece spool is turned to synchronously workpiece, gets into circulation next time.
Above-mentioned test process has been simulated the various states of workpiece when reality is used, and particularly the workpiece spool being opened and rotated the process of regulating water temperature is people's customs in actual use, so the test of this test machine is accurate and effective.This test machine is accomplished and to be checked whether workpiece spool place leaks after the test and just can judge whether this workpiece is qualified, and is through just can confirm the number percent of workpiece life-span qualification rate to the test of a plurality of workpiece, simple to operate.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used terms such as test board 1, rotating mechanism 2, motor 21, rotary sleeve 22, topworks 3, contiguous block 31, chute 311, cylinder 32, slide block 33, accommodation hole 331, detent mechanism 4, support body 41, track 411, supporting seat 42, bolt hole 421, adjustable plate 43, screw 44, bolt 45, liquid-supplying system 5, cold water storage cistern 51, water supply pump 52, cold water pipes 53, boiler 54, electric heater 541, heat-exchanger pump 55, hot water pipeline 56, pressure transducer 57, cabinet 6, view window 7, controller 8 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.
Claims (6)
1. valve element service life tester of single-handle double-control water nozzle; Comprise test board (1); On test board (1), be provided with the detent mechanism (4) that to locate workpiece; Described test board (1) locates also to be provided with the liquid-supplying system (5) that the test water can be provided for workpiece; It is characterized in that; Also be provided with rotating mechanism (2) on the described test board (1) and link to each other with the workpiece spool and can make the topworks (3) of workpiece water outlet, this rotating mechanism (2) drives topworks (3) or detent mechanism (4) and rotates to the test angle of several settings and/or in the test angle scope of setting, rotate, and is positioned at the test angle of setting and/or when the test angle scope of setting is rotated, can both makes the workpiece water outlet when topworks (3); Described topworks (3) comprises the have chute contiguous block (31) of (311) and the cylinder (32) that is connected with contiguous block (31); Be provided with slide block (33) between described contiguous block (31) and the workpiece spool, an end and the workpiece spool of slide block (33) are connected, and the other end of slide block (33) is positioned at chute (311) and is connected with the piston rod of cylinder (32) and moves around at the drive lower edge of piston rod chute (311).
2. valve element service life tester of single-handle double-control water nozzle according to claim 1; It is characterized in that; Described rotating mechanism (2) comprises motor (21); Be provided with tubular rotary sleeve (22) between the output shaft of described motor (21) and the contiguous block (31), described rotary sleeve (22) is connected in the output shaft of motor (21) and the end and the contiguous block (31) of rotary sleeve (22) is connected.
3. valve element service life tester of single-handle double-control water nozzle according to claim 1; It is characterized in that; Described detent mechanism (4) comprises support body of fixing with test board (1) (41) and the supporting seat (42) that fixes with support body (41), and described supporting seat is fixed with workpiece on (42).
4. valve element service life tester of single-handle double-control water nozzle according to claim 3; It is characterized in that; Described supporting seat (42) can move and can be fixing with support body (41) along support body (41); The adjustable plate (43) that described supporting seat (42) also has the ability fixation workpiece and can move with respect to the pedestal of supporting seat (42), the moving direction of the moving direction of described supporting seat (42) and adjustable plate (43) is perpendicular.
5. valve element service life tester of single-handle double-control water nozzle according to claim 1; It is characterized in that; Described rotating mechanism (2) and topworks (3) link with the controller that can control its work (8) respectively, and described controller (8) has the touch outer display screen of ability display parameter and ability input instruction.
6. valve element service life tester of single-handle double-control water nozzle according to claim 1; It is characterized in that; Described liquid-supplying system (5) comprises cold water storage cistern (51), water supply pump (52), boiler (54) and heat-exchanger pump (55); Described water supply pump (52) links with controller (8) through the cooling water inlet and the water supply pump (52) of cold water pipes (53) UNICOM's cold water storage cistern (51) and workpiece; Described heat-exchanger pump (55) links with controller (8) through the hot water inlet and the heat-exchanger pump (55) of hot water pipeline (56) UNICOM's boiler (54) and workpiece; All be connected with pressure transducer (57) on described cold water pipes (53) and the hot water pipeline (56), described pressure transducer (57) links with controller (8).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101675472A CN101799360B (en) | 2010-05-10 | 2010-05-10 | Valve element service life tester of single-handle double-control water nozzle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101675472A CN101799360B (en) | 2010-05-10 | 2010-05-10 | Valve element service life tester of single-handle double-control water nozzle |
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| Publication Number | Publication Date |
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| CN101799360A CN101799360A (en) | 2010-08-11 |
| CN101799360B true CN101799360B (en) | 2012-02-29 |
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| CN2010101675472A Expired - Fee Related CN101799360B (en) | 2010-05-10 | 2010-05-10 | Valve element service life tester of single-handle double-control water nozzle |
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|---|---|---|---|---|
| CN102128707B (en) * | 2010-12-30 | 2013-05-01 | 无锡鹰贝精密轴承有限公司 | Valve element airtightness testing device |
| CN102735438B (en) * | 2012-07-03 | 2016-01-20 | 福建闽机机械科技有限公司 | A kind of water nozzle spool life detecting device |
| CN104697764A (en) * | 2013-12-10 | 2015-06-10 | 财团法人金属工业研究发展中心 | Device and method for testing pipeline fittings |
| CN107807049A (en) * | 2017-10-18 | 2018-03-16 | 江门市霈霖卫浴科技有限公司 | A kind of tap water testing machine water valve switching device |
| CN108362486A (en) * | 2018-02-01 | 2018-08-03 | 日丰企业（佛山）有限公司 | Spool life-span test system and test method |
| CN108931361B (en) * | 2018-05-22 | 2023-08-04 | 山东和富工程检测有限公司 | Automatic valve duty cycle performance test device for automatic water spraying fire extinguishing system |
| CN110044598A (en) * | 2019-05-17 | 2019-07-23 | 佛山市顺德区汇普斯仪器设备有限公司 | A kind of constant-temperature tap comprehensive test machine |
| CN112781842B (en) * | 2019-11-01 | 2022-07-12 | 北京市公用事业科学研究所 | Mechanical performance test system and method for pipeline water supply fittings |
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| CN2553371Y (en) * | 2002-06-11 | 2003-05-28 | 江苏省竹箦机械厂 | Mechanical device of mixed water tap on-off service life testing machine |
| CN101358899A (en) * | 2008-09-26 | 2009-02-04 | 上海建科检验有限公司 | Life testing device for single-handle double-control water nozzle |
| CN201697780U (en) * | 2010-05-10 | 2011-01-05 | 玉环县清港液压机械厂 | Service life testing machine for single-handle dual-control water nozzle valve core |
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|---|---|---|---|---|
| JPH11118692A (en) * | 1997-10-20 | 1999-04-30 | Mitsui Eng & Shipbuild Co Ltd | Testing apparatus for erosion by mud water |
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| CN2553371Y (en) * | 2002-06-11 | 2003-05-28 | 江苏省竹箦机械厂 | Mechanical device of mixed water tap on-off service life testing machine |
| CN101358899A (en) * | 2008-09-26 | 2009-02-04 | 上海建科检验有限公司 | Life testing device for single-handle double-control water nozzle |
| CN201697780U (en) * | 2010-05-10 | 2011-01-05 | 玉环县清港液压机械厂 | Service life testing machine for single-handle dual-control water nozzle valve core |
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