CN2447929Y

CN2447929Y - Pressure switch

Info

Publication number: CN2447929Y
Application number: CN 00253968
Authority: CN
Inventors: 周秋松
Original assignee: QINRUI INDUSTRY Co Ltd
Current assignee: QINRUI INDUSTRY Co Ltd
Priority date: 2000-09-27
Filing date: 2000-09-27
Publication date: 2001-09-12
Anticipated expiration: 2010-09-27

Abstract

The utility model relates to a pressure regulating switch, which is used for a small-size air compressor, and thus the small-size air compressor can be fine adjusted and pressure can be set. The utility model comprises a pressure induction device and a contact junction fine motion device, wherein, input pressure can be received by the pressure induction device and thus the pressure induction device is deformed to link with a butting rod. The contact junction fine motion device is provided with a first contact junction and is controlled by the butting rod, and thus the contact junction fine motion device can be cut off or contacted with a second contact junction. The utility model is characterized in that the contact junction fine motion device is fixed on a seat frame which is upwards extended in the pressure induction device and a pressure regulating device is arranged in the contact junction fine motion device. The utility model is used for small-size air compressors.

Description

Pressure switch

The utility model relates to a kind of switch of regulating and control pressure that is used for small-sized air compressing device.

Existing this type of pressure switch has only a upper limit pressure and a pressure limiting power once usually textural, sometimes the user need be in air compressor machine control, very inconvenient when setting multiple upper and lower limit pressure stage difference, though but the pressure switch of similar multistage setup pressure value is arranged in large-scale air compressor machine control, huge but its structure is very complicated, be not suitable for and control small-sized air-pressure equipment.

The purpose of this utility model provides a kind of small-sized air compressor that is applicable to and has the pressure switch of fine setting pressure set points and pressure stage difference.

The purpose of this utility model is achieved in that pressure switch, and it comprises: one can receive pressure input and therefore and the pressure sensitive device and that distortion is supported bar with interlock is provided with first contact and is subjected to the aforementioned contact inching gear that supports that bar is controlled and can disconnect or contact with second contact; It is characterized in that: this contact inching gear is fixed on by extending upwardly on the mounting of establishing in the pressure sensitive device, and in wherein being provided with regulator.

Above-mentioned design, described regulator, be meant in the bar that supports of this pressure sensitive device and be provided with a rotating disk, rotating disk is provided with supporting part, by adjusting rotating disk in the position of supporting on the bar, can change the relation of controlling of first contact in the docking point inching gear, to reach the effect of adjusting different pressure set points.

Be described further again below by accompanying drawing, embodiment.

Fig. 1 the utility model embodiment one organigram;

Fig. 2 the utility model embodiment one action schematic diagram;

Fig. 3 the utility model embodiment two organigrams;

The left side view of Fig. 4 the utility model embodiment two.

As Figure 1-3: the utility model comprises: one can receive pressure input and therefore and the pressure sensitive device 11 and that distortion is supported bar 119 with interlock is provided with first contact 133 and is subjected to the aforementioned contact inching gear 13 that supports that bar 119 is controlled and can disconnect or contact with second contact 140; It is characterized in that: this contact inching gear 13 is fixed on by extending upwardly on the mounting of establishing 118 in the pressure sensitive device 11, and in wherein being provided with regulator.This regulator is meant in the bar 119 that supports of this pressure sensitive device 11 to be provided with a rotating disk 121 that rotating disk 121 is provided with supporting part 122, and this rotating disk 121 is located on bar 119 axial end opposite with respect to diaphragm 114; These rotating disk 121 width of cloth are to being provided with moving tooth 123; This rotating disk 121 is sheathed on the flexible member 124 on bar 119, and acted on by it; This flexible member 124 is located at 121 of the shoulder seat 120 of a nearly pressure sensitive device 11 on bar 119 and rotating disks; This pressure sensitive device 11 comprises the base 111 that is provided with conduit 112, and base 111 is provided with the balancing gate pit 113 that covered by a diaphragm 114, and mat one garter spring 116 makes balancing gate pit 113 form sealing, is located on the diaphragm 114 and support bar 119; This first contact 133 is separated with second contact 140 or contact, on the conducting strip 134 that forms first contact 133, stretch downwards and establish a snap portion 135, and curved the establishing of Yu Yiduan forms stopping part 136, and establish an end in stopping part 136 and be provided with down upper contact 137, and one end button is located at the flexible member 139 of aforementioned snap portion 135 and is detained on the reed 138 that draws, and second contact 140 is provided with the following contact 142 of the state that keeps in touch with upper contact 137; The disconnection or the contact of the upper and lower contact 137,142 of mat, and make first contact 133 do to disconnect or contact with second contact 140; This first contact 133 and second contact 140 are located on the same holder 131; This holder 131 is located in the pressure sensitive device 11 and is positioned at from garter spring 116 peripheries and stretches on the mounting of establishing 118 to central authorities are oblique; This reed 138 is an one with flexible member 139, constituted by rubber-like reed body 51, and reed body 51 1 ends are established upper contact 52, and other end bifurcated is established the stopping part 55 of a reed 53 contact conducting strips 54, and bifurcated goes out the snap portion 57 that an elastic spring 56 buttons are located at conducting strip 54 again; Supporting part 122 on this rotating disk 121 is made of metal.This regulator is meant establishes fine setting spiral shell spare 143 in this contact inching gear 13, its spiral shell of mat supports the degree of displacement, changes first and second contact 133,140 spacing when separated, to adjust the controllable different pressures section difference of integral pressure switch 1; These fine setting spiral shell spare 143 1 ends contact with first contact 133, and fine setting spiral shell spare is exactly the degree of displacement of fine setting first contact 133; And in the fine setting spiral shell spare 143 be provided with flexible member 144.Wherein, pressure switch 1 is placed in the cylindrical case 2, and there is a lid 3 top, and live wire 4.Pressure sensitive device 11 has and connects the conduit 112 of establishing pressure source, its base 111 has the balancing gate pit 113 that is arranged with the interval, it is covered by diaphragm 114, sealing ring 115 pad envelopes, and by a hoop 116 button hoop diaphragm 114 and bases 111, balancing gate pit 113 is gone in air flue 117 gas transmissions in the conduit 112; Holder 131 on the mounting 118 is made for insulating material, be arranged in parallel, curves one volt of turn of bilge 132 under the end.It is such that pressure of the present utility model is set: wherein, the pressure in the balancing gate pit 113 has first set point, the pressure set points that this first set point must stop when also being pressurized to a certain degree for air compressor machine.

Pressure pressure release in air compressor machine via use, balancing gate pit 113 dwindles to the pressure switch 1, support on the diaphragm 114 when supporting part 122 moves down on bar 119 and the rotating disk 121 and make, flexible member 139 is because of no external force effect, and will impel the upper contact 137 of motion button extension spring sheet 138 to contact as shown in Figure 1 according to its restoring force with following contact 142 formation on the conducting strip 141, this moment, the pressure in the balancing gate pit 113 had second set point, and this second set point also be air compressor machine pressure release pressure set points of supercharging once more extremely to a certain degree the time;

This contact is little advises flexible member 139 in the device 13 because the flexible speciality of itself, when supporting part 122 supports to arrive on being subjected to rotating disk 121, it is not the upper contact 137 of motion reed 138 immediately, and be the delay that keeps a period of time, pressure stage difference between aforementioned first set point and second set point i.e. the delay of time and Your Excellency thus, mainly fasten contact 137 and following contact 142 when disconnecting, this flexible member 139 is supported to arrive in by supporting part 122 to be arc bending shape, must supporting part 122 be displaced downwardly to flexible member 139 and return back to rough (time that this section period postpones when being level with reed 138, that is the generation of pressure stage difference), reed 138 just may be subjected to dial to hold together to move down and the upper contact 13 on it is contacted with drop point 142.

In order to adjust upper limit pressure, can buckle the moving tooth 123 of dialling rotating disk 121 by mat, make supporting part 122 do to rise or descend, if rise, then comparatively fast support and flexible member 139, so upper limit pressure is lower because of meeting; Otherwise then upper limit pressure is higher;

Pressure stage difference size (that is adjustment of threshold pression) between upper limit pressure and threshold pression, can be by adjusting the degree that fine setting spiral shell spare 143 downward spiral shells support on the holder 131, to change upper contact 137 and following contact 142 spacing when separated, spacing is littler, then supporting part 122 decline slightly on the rotating disk 121, upper contact 137 can support sooner and reach contact 142 down, i.e. the pressure stage difference of its control is littler, otherwise then the pressure stage difference is bigger.

As Fig. 3, shown in 4: another kind of contact inching gear 5, mainly the two is made as one with reed 138 among former Fig. 1 and flexible member 139, integral body is constituted by the flexible reed body 51 of a tool, and reed body 51 1 ends are provided with upper contact 52, portion 55 is slightly supported before the conducting strip 54 of nick in this pact middle section of reed 53 contacts that other end bifurcated goes out a bending, and bifurcated goes out the snap portion 57 that long elastic spring 56 buttons are located at aforementioned conducting strip 54, and like this then effects 61 pairs of elastic springs 56 of supporting part on the rotating disk 6 are with the effect of 122 pairs of flexible members 139 of supporting part among first embodiment, first figure roughly the same; In addition withstanding part 61 weares and teares for preventing on this rotating disk 6, can also metal material for it; And be the consideration of integral pressure switch arrangement space, the volt turn of bilge 59 of this holder 58 also can move the rear of establishing to holder 58 as illustrated in fig. 4.

The structure design of present embodiment, not only fine-tuning pressure set points and pressure stage difference, structure that it is special and design, rotating disk system is located on the bar axial end opposite with respect to diaphragm, and be subjected on the contact inching gear that supporting part on the rotating disk conflicts flexible member also directly to be located at the rotating disk top, and whole contact inching gear is fixed on by extending upwardly on the mounting of establishing in the pressure sensitive device, the interaction of each member can be operated in atomic little space, and be applicable to small-sized air compressing device.

Claims

1, pressure switch, it comprises: one can receive pressure input and therefore and the pressure sensitive device and that distortion is supported bar with interlock is provided with first contact and is subjected to the aforementioned contact inching gear that supports that bar is controlled and can disconnect or contact with second contact; It is characterized in that: this contact inching gear is fixed on by extending upwardly on the mounting of establishing in the pressure sensitive device, and in wherein being provided with regulator.

2, pressure switch as claimed in claim 1 is characterized in that: this regulator, be meant in the bar that supports of this pressure sensitive device to be provided with a rotating disk, and rotating disk is provided with supporting part,

3, pressure switch as claimed in claim 2 is characterized in that: this rotating disk is located on the bar axial end opposite with respect to diaphragm.

4, pressure switch as claimed in claim 2 is characterized in that: this rotating disk width of cloth is to being provided with moving tooth.

5, pressure switch as claimed in claim 2 is characterized in that: this rotating disk is sheathed on the flexible member on bar.

6, pressure switch as claimed in claim 5 is characterized in that: this flexible member is located between the shoulder seat and rotating disk of a nearly pressure sensitive device on the bar.

7, pressure switch as claimed in claim 2 is characterized in that: this pressure sensitive device comprises the base that is provided with conduit, and base is provided with the balancing gate pit that covered by a diaphragm, and mat one garter spring makes the balancing gate pit form sealing, is located on the diaphragm and support bar.

8, pressure switch as claimed in claim 2, it is characterized in that: this first contact is separated with second contact or contact, on the conducting strip that forms first contact, stretch downwards and establish a snap portion, and the curved formation stopping part of establishing of Yu Yiduan, and establish an end in stopping part and be provided with down upper contact, and one end button is located on the reed that the flexible member button of aforementioned snap portion draws, and second contact is provided with the following contact of the state that keeps in touch with upper contact.

9, pressure switch as claimed in claim 2 is characterized in that: this first contact and second contact are located on the same holder.

10, pressure switch as claimed in claim 9 is characterized in that: this holder is located in the pressure sensitive device and is positioned at from the garter spring periphery and stretches on the mounting of establishing to central authorities are oblique.

11, pressure switch as claimed in claim 8, it is characterized in that: this reed and flexible member are one, constituted by rubber-like reed body, and reed body one end is established upper contact, other end bifurcated is established the stopping part of a reed contact conducting strip, and bifurcated goes out the snap portion that an elastic spring button is located at conducting strip again.

12, pressure switch as claimed in claim 1 is characterized in that: the supporting part on this rotating disk is made of metal.

13, pressure switch as claimed in claim 1 is characterized in that: this regulator is meant establishes fine setting spiral shell spare in this contact inching gear.

14, pressure switch as claimed in claim 13 is characterized in that: this fine setting spiral shell spare one end contacts with first contact.

15, pressure switch as claimed in claim 13 is characterized in that: this pressure sensitive device comprises the base that is provided with conduit, and base is provided with the balancing gate pit that covered by a diaphragm, and mat one garter spring makes the balancing gate pit form sealing, is located on the diaphragm and support bar.

16, pressure switch as claimed in claim 13, it is characterized in that: this first contact is separated with second contact or contact, on the conducting strip that forms first contact, stretch downwards and establish a snap portion, and the curved formation stopping part of establishing of Yu Yiduan, and establish an end in stopping part and be provided with down upper contact, and one end button is located on the reed that the flexible member button of aforementioned snap portion draws, and second contact is provided with the following contact of the state that keeps in touch with upper contact.

17, pressure switch as claimed in claim 13 is characterized in that: this first contact and second contact are located on the same holder.

18, pressure switch as claimed in claim 17 is characterized in that: this holder is located in the pressure sensitive device and is positioned at from the garter spring periphery and stretches on the mounting of establishing to central authorities are oblique.