CN2061329U - Spring pipe type pressure relay - Google Patents
Spring pipe type pressure relay Download PDFInfo
- Publication number
- CN2061329U CN2061329U CN 89209772 CN89209772U CN2061329U CN 2061329 U CN2061329 U CN 2061329U CN 89209772 CN89209772 CN 89209772 CN 89209772 U CN89209772 U CN 89209772U CN 2061329 U CN2061329 U CN 2061329U
- Authority
- CN
- China
- Prior art keywords
- lock
- switch
- tube
- pressure switch
- fixed
- 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.)
- Pending
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The utility model relates to a spring pipe type pressure relay which is a transmitting device which can transfer a hydraulic signal to an electrical signal in an electric-hydraulic control system. The utility model is characterized in that a multiturn of spiral bourdon tubes are served as pressure elements, and the distance between a pressure switch and a contact plate of the bourdon tube can be adjusted by a pressure regulating mechanism. The utility model has the advantages of high sensibility and repeatable accuracy, convenient adjustment, no leakage, safety, reliability, long service life, etc.
Description
The utility model relates to a kind of spring-tube type pressure switch, belongs in the electro-hydraulic control system hydraulic pressure signal is converted to the signal of telecommunication, with the sequential control of realization system and a kind of dispensing device of safeguard protection.
The pressure switch of domestic production at present mainly is the plunger type pressure switch, its operation principle is: the medium with pressure makes plunger displacement, plunger promotes pressure switch and sends the signal of telecommunication, the sequential control of realization system, this product has the leakage hydraulic fluid port to the required precision height of plunger, therefore exist easy leakage of oil, sensitive switch suffers being difficult to guarantee in time to send signal after the oil immersion, and degree of regulation is low, shortcomings such as poor sensitivity.
The purpose of this utility model is to provide a kind of and replaces the spring-tube type pressure switch of plunger as pressure element with helical Bourdon tube.
Spring-tube type pressure switch of the present utility model comprises shell, pressure element, pressure switch and terminal box.Described pressure element is the multi-circle spiral flow bourdon tube that metal tube is made, for example tin-phosphor bronze pipe or stainless steel tube, the bourdon tube two ends respectively with fuel inlet fitting and sealing plug earlier with the welding again that is threaded.Fuel inlet fitting is fixed on the housing, is fixed with adjustable touch panel on the sealing plug, and touch panel and pressure switch contact align.Pressure switch is fixed on the elastic switch folder, and switch presss from both sides an end and is fixed on the housing.The distance of pressure switch contact and bourdon tube touch panel is adjusted by pressure regulating mechanism.Spring-tube type pressure switch of the present utility model has single pressure control and two pressure to control two types, and its difference mainly is that pressure switch is different with the quantity of switch folder, the pressure regulating mechanism difference.Single pressure controlled spring-tube type pressure switch has a pressure switch and a switch folder, and its pressure regulating mechanism comprises safety lock, cam and lever assembly.Described safety lock is made up of lock tube, lock, lock core assembly, dead bolt and key.Lock tube is enclosed within on the lock cylindrical, and lock top is fixed with the lock core assembly, and dead bolt has been crossed at lock middle part, and the finger of lock core assembly is inserted in and can drives in the groove of dead bolt in the location hole that dead bolt injects lock tube, and lock tube and lock are fixed.Lock is installed on the lid that indicates the force value scale, and the lock bottom is fixed with camshaft, and the camshaft axle head is fixed with the cam that profile is an Archimedes spiral, and lock can drive cam and together rotate.Lever assembly is hinged on the lid, on two lever arms of lever assembly the spiral micro-adjusting mechanism is housed respectively, and the spring that is pressed on the lever arm makes the slide block and top being pressed in respectively on the cam type surface that are driven by spiral in two spiral micro-adjusting mechanisms press from both sides with switch.The pressure adjustment is carried out as follows: the finger of stirring the lock core assembly with key, make in its location hole of stirring dead bolt reeve lock tube, with lock tube and lock locking, the rotation lock tube, then lock tube drives lock, and lock drives cam, the slide block that the cam promotion is in contact with it, lever assembly is rotated around its hinge, be fixed on the top switch folder that then promotes to be fixed with pressure switch on another lever arm, can adjust the distance of pressure switch contact and bourdon tube touch panel.During use, according to desired pressure, corresponding force value on the red some aligning lid on the lock is got final product, adjustment finishes, and dials back dead bolt with key, and then no matter how lock tube rotates, lock does not rotate thereupon yet, can play safety effect, two pressure controlled spring-tube type pressure switches have two pressure switches and two switch folders, and two pressure switches are by upper and lower sequence arrangement.Pressure regulating mechanism comprises two awl end adjustment screw that are spun on the housing, the awl end of adjustment screw is pressed on the inclined-plane of switch folder movable end, and the precession adjustment screw can strengthen the distance of switch folder and bourdon tube touch panel, screw out adjustment screw, then can reduce the distance of switch folder and bourdon tube touch panel.
The utility model has the advantages that sensitivity and repeatable accuracy height, easy to adjust, do not leak, safe and reliable, long service life.
Fig. 1 is the outline drawing of single pressure control spring tubular type pressure switch of the present utility model.
Fig. 2 is the structural representation of single pressure control spring tubular type pressure switch of the present utility model.
Fig. 3 is the pressure regulating mechanism structural representation of single pressure control spring tubular type pressure switch of the present utility model.
Fig. 4 is the structural representation of safety lock in the pressure regulating mechanism of single pressure control spring tubular type pressure switch of the present utility model.
Fig. 5 is the outline drawing of of the present utility model pair of pressure control spring tubular type pressure switch.
Fig. 6 is the pressure regulating mechanism structural representation of of the present utility model pair of pressure control spring tubular type pressure switch.
Embodiment 1: single pressure controlled spring-tube type pressure switch, and referring to Fig. 1-5, bourdon tube 13 is the multi-circle spiral flow bourdon tubes that bent by the tin-phosphor bronze pipe, its number of turns is 2.5.Housing 2, lid 3, terminal box 1, joint 11 and sealing plug 12 materials are cast aluminium.Bourdon tube 13 two ends are first to be threaded with joint 11 and sealing plug 12 respectively, welding again.Joint 11 is by being bolted on the housing 2.Adjustable touch panel 8 with screw on sealing plug 12.Switch folder 7 is made by the 65Mn steel plate, and the one end is screwed on housing 2.Pressure switch 6 is fixed on the switch folder 7, and its contact 9 is relative with touch panel 8, and spring 10 is pressed in the movable end of switch folder 7.Pressure regulating mechanism comprises the safety lock be made up of lock tube 4, lock 24, lock core assembly 23, dead bolt 26, key 5 and lever assembly 18, cam 14.Lock tube 4 is enclosed within on lock 24 cylindricals, the axial location of lock tube 4 and lock 24 is limited by screw 29, lock core assembly 18 is fixed on the lock 24 by limit screw 28, dead bolt 26 is transverse in lock 24 middle parts, the finger 25 of lock core assembly 18 is inserted in the groove of dead bolt 26, be processed with location hole on the circle in the lock tube 4, lock 24 is contained on lid 3 outer surfaces, is carved with force value on lid 3 outer surfaces.Camshaft 27 and lock 24 are located with the square hole angle, profile is that the cam 14 of Archimedes spiral is fixed on camshaft 27 axle heads, cam 14 is fixed on the inner surface of lid 3, lever assembly 18 is hinged on the lid 3, on two lever arms of lever assembly 18 the spiral micro-adjusting mechanism is housed all.The micro-adjusting mechanism of being made up of screw 16 and slide block 15 is pressed in by spring 17 on the profile of cam 14, is pressed on the switch folder 7 by screw 20 and top 19 micro-adjusting mechanisms of forming.
Embodiment 2: two pressure control spring tubular type pressure switches, referring to Fig. 5,6, structures such as the bourdon tube 13 of two pressure control spring tubular type pressure switches, pressure switch 6, switch folder 7 are all identical with single pressure control type.Pressure switch 6 and switch folder 7 are two, press upper and lower fixed order on housing 2.Pressure regulating mechanism is two awl end adjustment screw 21, and its awl end is stuck in two switches and presss from both sides on the inclined-plane of 7 movable ends, and adjustment screw 21 is spun on the nut 22, and nut 22 is spun on the housing 2.
Claims (4)
1, a kind of spring-tube type pressure switch, comprise housing 2, lid 3, pressure element, pressure switch 6 and terminal box 1, it is characterized in that described pressure element is the multi-circle spiral flow bourdon tube 13 of metal control, weld to be threaded earlier with fuel inlet fitting 11 and sealing plug 12 respectively at bourdon tube 13 two ends again, fuel inlet fitting 11 is fixed on the housing 2, be fixed with adjustable touch panel 8 on the sealing plug 12, touch panel 8 aligns with the contact 9 of pressure switch 6, pressure switch 6 is fixed on the elastic switch folder 7, switch presss from both sides 7 one ends and is fixed on the housing 2, and touch panel 8 is regulated by pressure regulating mechanism with the distance of the contact 9 of pressure switch 6.
2, spring-tube type pressure switch according to claim 1 is characterized in that described bourdon tube 13 is bent by the tin-phosphor bronze pipe.
3, spring-tube type pressure switch according to claim 1 and 2, it is characterized in that described pressure regulating mechanism comprises safety lock, cam 14 and lever assembly 18, safety lock is by lock tube 4, lock 24, lock core assembly 23, dead bolt 26 and key 5 are formed, lock tube 4 is enclosed within on lock 24 cylindricals, lock 24 upper ends are fixed with lock core assembly 23, dead bolt 26 has been crossed at lock 24 middle parts, the finger 25 of lock core assembly 23 is inserted in the groove of dead bolt 26, key 5 is stirred lock core can make finger 25 stir in the location hole of dead bolt 26 reeve lock tubes 4, lock 24 is installed on the lid 3 that is marked with force value, lock 24 lower ends are fixed with camshaft 27, camshaft 27 terminations are fixed with the cam 14 that profile is an Archimedes spiral, lever assembly 18 is hinged on the lid 3, on two lever arms of lever assembly 18 the spiral micro-adjusting mechanism is housed all, spring 17 is pressed on the lever arm, spiral micro-adjusting mechanism on the lever arm of lever assembly 18 is pressed on cam 14 profiles, and the spiral micro-adjusting mechanism on another lever arm is pressed on the switch folder 7.
4, spring-tube type pressure switch according to claim 1 and 2, it is characterized in that described pressure switch 6 and switch folder 7 is two, by upper and lower sequence arrangement, described pressure regulating mechanism is two awl end adjustment screw 21, adjustment screw 21 is spun on the housing 2, its awl end is pressed in the movable end of switch folder 7, and adjustment screw 21 is during by precession, and switch folder 7 strengthens with the distance of the touch panel 8 of bourdon tube 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209772 CN2061329U (en) | 1989-12-02 | 1989-12-02 | Spring pipe type pressure relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89209772 CN2061329U (en) | 1989-12-02 | 1989-12-02 | Spring pipe type pressure relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2061329U true CN2061329U (en) | 1990-08-29 |
Family
ID=4866281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89209772 Pending CN2061329U (en) | 1989-12-02 | 1989-12-02 | Spring pipe type pressure relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2061329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438551A (en) * | 2016-08-25 | 2017-02-22 | 浙江工业大学 | Bourdon tube force feedback type 2D electrical-hydraulic pressure servo valve |
| CN108884689A (en) * | 2016-03-10 | 2018-11-23 | Kfv卡尔弗利特有限及两合公司 | lock |
-
1989
- 1989-12-02 CN CN 89209772 patent/CN2061329U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108884689A (en) * | 2016-03-10 | 2018-11-23 | Kfv卡尔弗利特有限及两合公司 | lock |
| CN108884689B (en) * | 2016-03-10 | 2019-12-13 | Kfv卡尔弗利特有限及两合公司 | Lock with a locking mechanism |
| CN106438551A (en) * | 2016-08-25 | 2017-02-22 | 浙江工业大学 | Bourdon tube force feedback type 2D electrical-hydraulic pressure servo valve |
| CN106438551B (en) * | 2016-08-25 | 2018-01-05 | 浙江工业大学 | Bourdon tube force feedback type 2D Electric hydraulic pressure servo valves |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2061329U (en) | Spring pipe type pressure relay | |
| US4367714A (en) | Fuel injection pump | |
| US5517008A (en) | Steam powered liquid pump mechanical cycle counter | |
| US3295371A (en) | Lease automatic custody transfer unit | |
| CN208634493U (en) | A kind of valve hand wheel component facilitating maintenance | |
| CN111877150A (en) | Modularized height-adjusting device, support and intelligent adjusting system | |
| CN2101142U (en) | Digital proportion pressure valve | |
| DE19605664A1 (en) | Bellows cam disc pump | |
| CN206191001U (en) | Glasses valve is with sealed power device that compresses tightly | |
| CN109373045A (en) | The control mechanism of more turning valve driving devices | |
| CN201358898Y (en) | Mechanical digital displaying metering pump | |
| CN210089555U (en) | Plunger stroke measuring device for single high-pressure oil pump of diesel engine | |
| CN219866297U (en) | Butterfly valve anti-corrosion device | |
| CN2058434U (en) | Hydraulic servo linear oil cylinder for robot | |
| CN219308036U (en) | Pressure control mechanism of hydraulic filter press and hydraulic filter press | |
| CN218719217U (en) | Integral type angular displacement recognition device with compensation function and applicable to explosion-proof product | |
| SU826200A1 (en) | Metering arrangement | |
| CN219493056U (en) | On-line sampling valve | |
| CN2140459Y (en) | Differential pressure piston valve | |
| CN217873078U (en) | Diesel engine fuel injection pump based on servo motor control | |
| CN2489132Y (en) | Electrohydraulic push rod | |
| CN220912393U (en) | Water meter convenient to installation | |
| CN215762180U (en) | Precise small ceramic quantitative pump | |
| CN216343629U (en) | Viscous damping wall irritates oily device | |
| CN2234606Y (en) | Plate high valve type orifice pressure tap device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |