CN101206972A - Automatic pneumatic switch for air compressor - Google Patents
Automatic pneumatic switch for air compressor Download PDFInfo
- Publication number
- CN101206972A CN101206972A CNA2006101474922A CN200610147492A CN101206972A CN 101206972 A CN101206972 A CN 101206972A CN A2006101474922 A CNA2006101474922 A CN A2006101474922A CN 200610147492 A CN200610147492 A CN 200610147492A CN 101206972 A CN101206972 A CN 101206972A
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- pressure
- connecting rod
- load
- pressure diaphragm
- air compressor
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Abstract
The invention relates to an automatic pneumatic switch of an air compressor. The unloading part of the switch comprises a main body, a connecting rod element, an unloading element and a lower sealing element. The switch part of the switch comprises a pressure diaphragm, a pressure elastic sheet, a pressure diaphragm base seat, a switch pushing rod, two connecting terminals, an elastic sheet and a connecting terminal mounting box; the connecting rod element of the unloading part penetrates through a working chamber, the lower sealing element, an air inlet chamber, an upper sealing element and the unloading opening of the unloading element, the lower end of the connecting rod element is connected with the pressure diaphragm and the pressure elastic sheet, and an unloading groove is arranged at the upper end. The connecting rod element is divided into two sections, namely, an upper section and a lower section and the two sections are connected in a thread way. When an error appears, the upper part of the connecting rod element can be rotated to adjust the size of the unloading groove on the connecting rod element. The invention has the function of automatically controlling the one-way air inlet and air blocking of the air compressor, the compressor and the compressed air in a pipeline are automatically unloaded during the closedown; therefore a motor and the compressor are ensured not to be influenced by the air pressure load function, but to be easily restarted and used continuously; simultaneously, the machine is also protected from being worn out, and the service life is prolonged.
Description
Technical field
The present invention relates to a kind of pump of special purpose or the parts or the annex of pumping system, particularly a kind of automatic pneumatic switch for air compressor.
Background technology
Chinese patent ZL90202817 once disclosed a kind of " setting up the formula pressure controller ", it is made up of switch block, bellows pressure sensor, drive block, spring base, spring(-supported) mount, spring, limit base, collar nut etc., adopt bellows pressure sensor to drive the break-make of switch block, so can control the commentaries on classics of compressor stops, but the excessive gas system that does not relate to air compressor machine, if that is to say and use it not take other measures that air compressor machine is lost heart, just may be in load condition when restarting.
Chinese patent ZL92213905 also once disclosed a kind of " air compressor machine baroswitch ", it comprises base plate, support, gas spring, air pressure adjustment screw, air pressure top, springboard, unloading one-way valve, be positioned on the support of springboard avris manual off-load switch is housed, the miniature A.C. contactor of touch-type also is housed, its contact is positioned at the springboard top, and it is by manually easily air compressor machine being carried out pressure release at any time.At present, the air compressor machine pressure controller of supplying on the market (air compressor machine baroswitch), its excessive gas system all adopts indirect mode, and design exists the not high defective of pressure release reliability on the structure.Because when cutting off the electricity supply, overbottom pressure in air compressor cylinder and the exhaust large copper pipe is not discharged, then overbottom pressure will be kept the long period in air compressor cylinder and the exhaust large copper pipe, and when people start air compressor machine behind a short time interval, there is certain air pressure toward contact in cylinder and the exhaust large copper pipe, thereby air compressor machine is started under the on-load situation, not only strengthen the startup loss of air compressor motor, and bigger starting current all can produce harmful effect to motor itself and near electric equipment, shorten air compressor machine useful life, increased maintenance load.
In order to solve this class problem, Chinese patent ZL01220855.8 discloses a kind of " automatic pneumatic switch for air compressor ", it comprises switch block, housing, bellows pressure sensor, bellows pressure sensor is contained under the housing, have a spring support to be installed in the housing, spring support is adorned a springboard, on adorn switch block, housing one side is equipped with unloader, and springboard extends ear under the sealing thimble of unloader.It can accomplish when switch is cut off the electricity supply air compressor machine at any time to be started all be in no load condition directly to the air compressor machine releasing pressure automatically.Because the setting of its structure cause own vol bigger, thereby its cost is higher.
Chinese patent ZL01221183.4 disclosed " the double automatically manual pneumatic switch of air compressor machine ", it comprises switch block, base plate, bellows pressure sensor, bellows pressure sensor is contained on the base plate, one control board is contained on the base plate and contacts with bellows pressure sensor, place a springboard on this control board, there is its other end of an extension spring to hang on the control board on the springboard, base plate one side is equipped with unloader, springboard extends ear under the sealing thimble of unloader, and the opposite side of base plate has one handle to extend under the springboard.It is same because the setting of its structure cause own vol bigger, thereby its cost is higher.
Above-mentioned patent is many or exist the problem of each side less, and is also not very good.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of automatic pneumatic switch for air compressor, to solve the weak point that existing air compressor machine baroswitch exists.
Technical problem to be solved by this invention can be achieved through the following technical solutions:
Automatic pneumatic switch for air compressor, comprise off-load part and switch sections, its relief portion branch comprises a body, a connecting rod element, an off-load element and upper and lower potted component, and switch sections comprises pressure diaphragm, pressure shell fragment, pressure diaphragm pedestal, switch push rod, two binding posts, shell fragment, binding post mounting box; Described body is provided with two pipe joints that connect gas receiver and pumping and is positioned at pipe joint and intrinsic inlet, outlet pipeline, in body, also be provided with the working chamber and the inlet chamber of linking up the inlet, outlet pipeline, working chamber is positioned at the bottom of inlet chamber, is provided with the lower seal element that is installed on the body between working chamber and inlet chamber; The off-load element is installed on the body on inlet chamber top, is offering the off-load mouth on the off-load element and potted component is installed, working chamber, inlet chamber, the coaxial setting of off-load mouth; Below pressure diaphragm, be provided with a pressure shell fragment, this pressure shell fragment is installed on the pressure diaphragm pedestal with pressure diaphragm and is installed in the working chamber in the body by the binding post mounting box together with the pressure diaphragm pedestal, the force value of the pressure-bearing value determine switch of this pressure shell fragment, two binding posts are fixed on the binding post mounting box, and it is inside and outside that its upper and lower end lays respectively at the binding post mounting box; Described shell fragment one end is fixed on the binding post, and the other end is provided with electrical contact, contacts with electrical contact on another binding post; Be provided with push rod slidably on described pressure diaphragm pedestal, the upper and lower end of push rod contacts with shell fragment with pressure diaphragm respectively; The connecting rod element of described off-load part passes working chamber, lower seal element, inlet chamber, goes up the off-load mouth in potted component and the off-load element, and its lower end is connected with pressure diaphragm, and the upper end offers compensating groove.
In the actual course of processing, error between each part sometimes can cause connecting rod element can not expose off-load mouth on the off-load element, causes off-load not smooth, further improved technical scheme of the present invention is that connecting rod element is divided into two-section up and down, connects by engage thread between the two-section.When error occurring, can rotate the top of connecting rod element like this, the length of adjusting Connection Element to compensating groove in position after, fix with connection glue in the connecting rod element two-section part that is threaded.
Described upper and lower potted component is the cone rubber sealing ring.
Described off-load element and binding post mounting box directly adopt the curved mode of riveting to be installed on the body.
Operation principle of the present invention is: during start, pressure diaphragm returns back to ortho states together with the pressure shell fragment, and upwards the jack-up connecting rod element is positioned on the potted component compensating groove of connecting rod element upper end, go up simultaneously potted component hold tightly connecting rod element make it the sealing, thereby the off-load mouth is closed.Simultaneously compressed air is by pumping, enter in the air accumulator by admission line, inlet chamber, lower seal element, working chamber, the outlet pipe of getting through state.Pressure diaphragm and pressure shell fragment lose the effect to push rod, push rod moves under the shell fragment effect, electrical contact on the shell fragment contacts with electrical contact on another binding post, form "on" position (referring to Fig. 1), at this moment the compressed air that pumping is sent, enter air compressor air storage tank continuously by admission line, inlet chamber, the lower seal element of getting through state, working chamber, outlet pipe, be work service.
When air compressor air storage tank pressure reached rated pressure, the pressure in the working chamber also reached rated pressure simultaneously, and rated pressure forces pressure diaphragm and pressure shell fragment to be out of shape downwards, and the pressure diaphragm of distortion and pressure shell fragment promote push rod and move down.The push rod that moves down backs down shell fragment, makes electrical contact on the shell fragment and the electrical contact contact separation on another binding post, disconnects the power supply of pumping.While pressure diaphragm and pressure shell fragment drivening rod element again move down, and last potted component unclamps connecting rod element, and at this moment, the lower seal element is held connecting rod element tightly under gas pressure.Compensating groove on the connecting rod element bounces back under the potted component simultaneously, and the gases at high pressure in pumping at this moment, admission line and the inlet chamber excrete out by the compensating groove of connecting rod element upper end, the off-load mouth on the off-load unit, reach off-load effect (referring to Fig. 2).
After off-load finishes, pressure in the working chamber returns to open state, pressure diaphragm and pressure shell fragment return back to ortho states, the jack-up connecting rod element makes progress, the compensating groove of connecting rod element upper end is positioned on the potted component, feasible upward potted component is held connecting rod element tightly makes it sealing, thereby the off-load mouth is closed.
The present invention has the unidirectional air inlet of automatic control air compressor machine, the function of holding one's breath, and the compressed air during shutdown in automatic deloading compressor and the pipeline guarantees that motor and compressor are not subjected to the airload effect, is easy to reset and uses continuously.Simultaneously also protect the machine protected from wear, prolong its useful life.
Description of drawings
Fig. 1 is the schematic diagram of automatic pneumatic switch for air compressor "on" position of the present invention.
Fig. 2 is the schematic diagram of automatic pneumatic switch for air compressor off-position of the present invention.
Fig. 3 is the structural representation of a kind of connecting rod element of automatic pneumatic switch for air compressor of the present invention.
Fig. 4 is the structural representation of the another kind of connecting rod element of automatic pneumatic switch for air compressor of the present invention.
Fig. 5 is for being the structural representation of another connecting rod element of automatic pneumatic switch for air compressor of the present invention.
Embodiment
Further describe the present invention below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, automatic pneumatic switch for air compressor, comprise off-load part and switch sections, its relief portion branch comprises a body 1, a connecting rod element 2, an off-load element 3 and upper and lower potted component 4,5, and switch sections comprises pressure diaphragm 6, pressure shell fragment 35, pressure diaphragm pedestal 7, switch push rod 8, two binding posts 10,11, shell fragment 12, binding post mounting box 13.
Body 1 is one similar columnar structured, and the both sides on body 1 are provided with 14,15, two pipe joints 14,15 of two pipe joints that connect gas receiver and pumping and are screwed pipe joint.Inlet, outlet pipeline 16,17 in two pipe joints 15,14 and body 1, wherein admission line 16 is a direct piping, outlet pipe 17 is bending shape pipeline.
Also be provided with the working chamber 18 and the inlet chamber 19 of linking up inlet, outlet pipeline 16,17 in body 1, working chamber 18 is positioned at the bottom of inlet chamber 19, and both communicate with each other, and admission line 16 is communicated with inlet chamber 19 simultaneously, and outlet pipe 17 is communicated with working chamber 18.
Approach at inlet chamber 19 to offer a cannelure 20 on the body 1 of working chamber 18, lower seal element 5 is stuck in this cannelure 20, and lower seal element 5 just can be arranged between working chamber 18 and the inlet chamber 19 like this.
On the body 1 on inlet chamber 19 tops, offer the off-load element installing hole 21 of a stairstepping, be provided with at the top of off-load element installing hole 21 can bending thin-walled portion 23, off-load element 3 is the plectane of a stairstepping, the centre offers off-load mouth 22, off-load element 3 and sealing gasket 24 sat on the rank shoulder that is placed on off-load element installing hole 21, inwardly lay can bending thin-walled portion 23 just off-load element 3 can be fixedly mounted on the body 1.
Off-load mouth 22 inwalls bottom at off-load element 3 offers a cannelure 25, and last potted component 4 is stuck in this cannelure 25, goes up potted component 4 like this and just can be fixed on the off-load element 3.
Upper and lower potted component 4,5 is the cone rubber sealing ring, so that hold connecting rod element 2 better tightly when sealing state.
Two binding posts 10,11 are fixed on the binding post mounting box 13, and it is inside and outside that its upper and lower end lays respectively at binding post mounting box 13; Shell fragment 12 1 ends are fixed on the binding post 10, and the other end is provided with electrical contact 27, contact with electrical contact 28 on another binding post 11.
Have a push rod through hole 29 at the center of pressure diaphragm pedestal 7, push rod 8 is installed in this push rod through hole 29 with being slidingly matched and can slides up and down, and the upper and lower end of push rod 8 contacts with shell fragment 12 with pressure diaphragm 6 respectively.
Referring to Fig. 3, connecting rod element 2 is divided into two- section 30,31 up and down, connect by engage thread between the two- section 30,31, wherein going up and cutting 30 is stairstepping, and the lower end is provided with external screw thread 33, the part of vacating after the upper end dwindles is a compensating groove 32, cut down in 31 the top and have internal thread 34, when error occurring, can rotate going up of connecting rod element 2 and cut 30 like this, the length of adjusting connecting rod element 2 to compensating groove 32 in position after, fix with connection glue in the connecting rod element 2 two-sections part that is threaded.
Referring to Fig. 4, connecting rod element 2 is divided into two- section 30,31 up and down, connect by engage thread between the two- section 30,31, wherein go up section 30 lower ends and be provided with external screw thread 33, the upper end has breach, to form compensating groove 32, cut down in 31 the top and have internal thread 34, when error occurring, can rotate going up of connecting rod element 2 and cut 30 like this, the length of adjusting connecting rod element 2 to compensating groove 32 in position after, fix with connection glue in the connecting rod element 2 two-sections part that is threaded.
Referring to Fig. 5, when machining accuracy can reach accuracy and requires, connecting rod element 2 can directly be a global shape without separating into two-section up and down, offers the compensating groove 32 as Fig. 4 in the top.
Operation principle of the present invention is: referring to Fig. 1, during start, because the air accumulator internal gas pressure value that is connected with outlet pipe 17 is lower than the setting pressure-bearing value of pressure shell fragment 35, pressure shell fragment 35 pressure diaphragm 6 return back to ortho states, jack-up connecting rod element 2 makes progress, the compensating groove 32 of connecting rod element 2 upper ends is positioned on the potted component 4, go up simultaneously potted component 4 hold tightly connecting rod element 2 make it the sealing, thereby off-load mouth 22 is closed.Simultaneously compressed air is by pumping, enter in the gas receiver by admission line 16, inlet chamber 19, the lower seal element 5 of getting through state, working chamber 18, outlet pipe 17.Pressure diaphragm 6 and pressure shell fragment 35 lose the effect to push rod 8, push rod 8 moves under shell fragment 12 effects, electrical contact 27 on the shell fragment 12 contacts with electrical contact 28 on another binding post 11, form "on" position, at this moment the compressed air that pumping is sent, enter air compressor air storage tank continuously by admission line 16, inlet chamber 19, the lower seal element 5 of getting through state, working chamber 18, outlet pipe 17, be work service.
When air compressor air storage tank pressure reached rated pressure, the pressure in the working chamber 18 also reached rated pressure simultaneously, and rated pressure forces pressure diaphragm 6 and pressure shell fragment 35 to be out of shape downwards, and the pressure diaphragm 6 of distortion and pressure shell fragment 35 promote push rod 8 and move down.The push rod 8 that moves down backs down shell fragment 12, makes electrical contact 28 contact separations on electrical contact 27 and another binding post 11 on the shell fragment 12, disconnects the power supply of pumping.While pressure diaphragm 6 and pressure shell fragment 35 drivening rod element 2 again move down, last potted component 4 unclamps connecting rod element 2, at this moment, lower seal element 5 is under the effect of air pressure, hold Connection Element 2 tightly, compensating groove 32 on the connecting rod element 2 bounces back under the potted component 4 simultaneously, and the gases at high pressure in pumping at this moment, air inlet 16 and the inlet chamber 19 excrete out by the compensating groove 32 of connecting rod element 2 upper ends, the off-load mouth 22 on the off-load unit 3, reach the off-load effect.
After off-load finishes, pressure in the working chamber 18 returns to open state, pressure diaphragm 6 and pressure shell fragment 35 return back to ortho states, jack-up connecting rod element 2 makes progress, the compensating groove 32 of connecting rod element 2 upper ends is positioned on the potted component 4, feasible upward potted component 4 is held connecting rod element 2 tightly makes it sealing, thereby off-load mouth 22 is closed.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. automatic pneumatic switch for air compressor, comprise off-load part and switch sections, it is characterized in that, its relief portion branch comprises a body, a connecting rod element, an off-load element and upper and lower potted component, and switch sections comprises pressure diaphragm, pressure shell fragment, pressure diaphragm pedestal, switch push rod, two binding posts, shell fragment, binding post mounting box; Described body is provided with two pipe joints that connect gas receiver and pumping and is positioned at pipe joint and intrinsic inlet, outlet pipeline, in body, also be provided with the working chamber and the inlet chamber of linking up the inlet, outlet pipeline, working chamber is positioned at the bottom of inlet chamber, is provided with the lower seal element that is installed on the body between working chamber and inlet chamber; The off-load element is installed on the body on inlet chamber top, is offering the off-load mouth on the off-load element and potted component is installed, working chamber, inlet chamber, the coaxial setting of off-load mouth; Below pressure diaphragm, be provided with a pressure shell fragment, this pressure shell fragment is installed on the pressure diaphragm pedestal with pressure diaphragm and is installed in the working chamber in the body by the binding post mounting box together with the pressure diaphragm pedestal, two binding posts are fixed on the binding post mounting box, and it is inside and outside that its upper and lower end lays respectively at the binding post mounting box; Described shell fragment one end is fixed on the binding post, and the other end is provided with electrical contact, contacts with electrical contact on another binding post; Be provided with push rod slidably on described pressure diaphragm pedestal, the upper and lower end of push rod contacts with shell fragment with pressure diaphragm respectively; The connecting rod element of described off-load part passes working chamber, lower seal element, inlet chamber, goes up the off-load mouth in potted component and the off-load element, and its lower end is connected with pressure diaphragm, and the upper end offers compensating groove.
2. automatic pneumatic switch for air compressor according to claim 1 is characterized in that, described connecting rod element is divided into two-section up and down, connects by engage thread between the two-section.
3. automatic pneumatic switch for air compressor according to claim 2 is characterized in that, the connecting rod element two-section part that is threaded is fixed with connection glue.
4. automatic pneumatic switch for air compressor according to claim 1 is characterized in that, described upper and lower potted component is the cone rubber sealing ring.
5. automatic pneumatic switch for air compressor according to claim 1 is characterized in that, described off-load element and binding post mounting box directly adopt the curved mode of riveting to be installed on the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101474922A CN100568435C (en) | 2006-12-19 | 2006-12-19 | Automatic pneumatic switch for air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101474922A CN100568435C (en) | 2006-12-19 | 2006-12-19 | Automatic pneumatic switch for air compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101206972A true CN101206972A (en) | 2008-06-25 |
| CN100568435C CN100568435C (en) | 2009-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101474922A Expired - Fee Related CN100568435C (en) | 2006-12-19 | 2006-12-19 | Automatic pneumatic switch for air compressor |
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| CN (1) | CN100568435C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877447B (en) * | 2009-04-30 | 2012-12-19 | 比亚迪股份有限公司 | Rapid power-down device |
| CN103862712A (en) * | 2014-02-28 | 2014-06-18 | 杭州东博自动化科技有限公司 | Injector for molds |
| CN103862713A (en) * | 2014-02-28 | 2014-06-18 | 杭州东博自动化科技有限公司 | Plate type material filling device |
| CN103862714A (en) * | 2014-02-28 | 2014-06-18 | 杭州东博自动化科技有限公司 | Quantitative injection control mechanism for molds |
| CN106226563A (en) * | 2016-07-29 | 2016-12-14 | 苏州凡特斯测控科技有限公司 | A kind of ventilation connects electrical connection mechanism |
| CN109303548A (en) * | 2018-07-20 | 2019-02-05 | 渝新智能科技（上海）有限公司 | A kind of children's sleeping position monitoring method, device and equipment |
| CN109545622A (en) * | 2018-12-14 | 2019-03-29 | 安徽华成电子科技有限公司 | A kind of device in sealing contact explosion-proof early warning structure of losing heart |
| CN110735783A (en) * | 2019-08-28 | 2020-01-31 | 鹤壁职业技术学院 | switch with air release function |
| CN111326367A (en) * | 2018-12-17 | 2020-06-23 | Abb瑞士股份有限公司 | Overvoltage relief flap arrangement for medium or high voltage switchgear |
| CN113309688A (en) * | 2021-05-21 | 2021-08-27 | 浙江年发电器有限公司 | Air compressor unloading device and electromagnetic valve adopting same |
-
2006
- 2006-12-19 CN CNB2006101474922A patent/CN100568435C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877447B (en) * | 2009-04-30 | 2012-12-19 | 比亚迪股份有限公司 | Rapid power-down device |
| CN103862712B (en) * | 2014-02-28 | 2017-10-13 | 杭州东博自动化科技有限公司 | Material injection device for mold |
| CN103862713A (en) * | 2014-02-28 | 2014-06-18 | 杭州东博自动化科技有限公司 | Plate type material filling device |
| CN103862714A (en) * | 2014-02-28 | 2014-06-18 | 杭州东博自动化科技有限公司 | Quantitative injection control mechanism for molds |
| CN103862714B (en) * | 2014-02-28 | 2017-05-03 | 杭州东博自动化科技有限公司 | Quantitative injection control mechanism for molds |
| CN103862712A (en) * | 2014-02-28 | 2014-06-18 | 杭州东博自动化科技有限公司 | Injector for molds |
| CN106226563A (en) * | 2016-07-29 | 2016-12-14 | 苏州凡特斯测控科技有限公司 | A kind of ventilation connects electrical connection mechanism |
| CN109303548A (en) * | 2018-07-20 | 2019-02-05 | 渝新智能科技（上海）有限公司 | A kind of children's sleeping position monitoring method, device and equipment |
| CN109545622A (en) * | 2018-12-14 | 2019-03-29 | 安徽华成电子科技有限公司 | A kind of device in sealing contact explosion-proof early warning structure of losing heart |
| CN111326367A (en) * | 2018-12-17 | 2020-06-23 | Abb瑞士股份有限公司 | Overvoltage relief flap arrangement for medium or high voltage switchgear |
| CN110735783A (en) * | 2019-08-28 | 2020-01-31 | 鹤壁职业技术学院 | switch with air release function |
| CN113309688A (en) * | 2021-05-21 | 2021-08-27 | 浙江年发电器有限公司 | Air compressor unloading device and electromagnetic valve adopting same |
| CN113309688B (en) * | 2021-05-21 | 2022-05-20 | 浙江年发电器有限公司 | Air compressor unloading device and electromagnetic valve adopting same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100568435C (en) | 2009-12-09 |
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Granted publication date: 20091209 Termination date: 20161219 |