CN201038062Y - Pressure relay - Google Patents
Pressure relay Download PDFInfo
- Publication number
- CN201038062Y CN201038062Y CNU2007201422612U CN200720142261U CN201038062Y CN 201038062 Y CN201038062 Y CN 201038062Y CN U2007201422612 U CNU2007201422612 U CN U2007201422612U CN 200720142261 U CN200720142261 U CN 200720142261U CN 201038062 Y CN201038062 Y CN 201038062Y
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- pressure
- plunger
- pressure switch
- spring
- utility
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Abstract
The utility model relates to a pressure relay with a plunger-type electric liquid pressure mechanism which mainly comprises a bottom seat(21), a shell(22), a plunger(23), a pressure spring(24), a conditioning device(25) and a group of micro-switch components; wherein, the pressure spring(24) is fixed and connected through a small spring seat(241) and a big spring seat(244); the plunger(23) is supported by the big spring seat(244) which is contacted with the micro-switch components and is connected with the bottom seat(21). The pressure relay of the utility model is simple in structure, wide scope in regulating, good in sealing and high in sensitivity; so the phenomena of blocking and crushing screw threads are avoided; the micro-switch is prevented from damaging when the pressure is suddenly reduced; at the same time, the spring is prevented from crushed when the pressure is too high.
Description
Technical field
The utility model relates to a kind of Hydraulic Elements, particularly relates to the pressure switch of a kind of plunger type electro-hydraulic pressure mechanism.
Background technology
The use of pressure switch has closely bound up with inseparable relation for people's productive life.Existing a kind of pressure switch, its structure sees also shown in Figure 1.This pressure switch mainly is made up of housing 12, plunger 13, spring 14, regulating element and sensitive switch 16.Wherein, this plunger 13 is sealingly fastened in the sleeve 11 by sealing ring 131; and join by contact base 144 and spring 14; this regulating element is made up of regulator bolts 151, accent micro screw 152, protective cover 153, steel ball 154 and jackscrew 155; and acting on spring 14 by spring base 141, this sensitive switch 16 is furnished with socket 163 and indicator light plug 165.When the pressure that is monitored acts on the plunger 13 by sleeve 11, plunger 13 withstands on the contact base 144, and overcomes the continuous variable power of spring 14.Spring base 141 makes circuit be communicated with or disconnection by designing requirement the mobile sensitive switch 16 that passes to of plunger 13.
Above-mentioned pressure switch, though can provide user one to have the pressure switch of plunger-type structure, really has progressive, but when using, reality but finds also to have in its structure some shortcomings, cause this pressure switch in practical application, fail to reach best result of use, and its shortcoming can be summarized as follows:
1, at first, complex structure, the structure of different pressures level is different fully, can not realize exchanging than multicomponent, has increased difficulty of processing and manufacturing cost.
2, in addition, only have 3 pressure ratings, adjustable range is less.
3 moreover, utilize common seal with O ring, sealing is not enough, in time, has and leak to take place, and the frictional force between sealing ring and the plunger is bigger, greatly reduces the sensitivity of pressure switch.
4, in addition, if misoperation, screw thread phenomenon stuck or that damage regulating sleeve by pressure may appear in the locking steel ball, thereby causes pressure switch to regulate.
5, it should be noted that in the course of the work, when the pressure of pressure switch reduces suddenly, damage sensitive switch easily by pressure, and when hypertonia, spring may be damaged also.
This shows that above-mentioned existing pressure switch obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that pressure switch exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore it is low, highly sensitive and can have the pressure switch of the new structure of multiple regulative mode when using how to found a kind of cost that has concurrently, real one of the current important research and development problem that belongs to, and also becoming the current industry utmost point needs improved target.
Because the defective that above-mentioned existing pressure switch exists, the design people is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of pressure switch of new structure, can improve general existing pressure switch, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the utility model that has practical value finally.
Summary of the invention
The purpose of this utility model is; overcome the defective that existing pressure switch exists; and provide a kind of pressure switch of new structure; technical problem to be solved is to make it have better simply structure, more general purpose accessory, bigger range of regulation; higher Min Lingdu and sealing; and can when pressure reduces suddenly, protect sensitive switch to exempt from destruction, and prevent that when hypertonia spring from being damaged by pressure, thus be suitable for practicality more.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to a kind of pressure switch that the utility model proposes, adopt plunger type electro-hydraulic pressure mechanism, it mainly comprises: base, housing, plunger, compression spring, adjusting device and sensitive switch assembly, wherein: this compression spring is connected and fixed through submissile spring abutment and big spring seat, this this plunger of big spring seat supports wherein, touch with the sensitive switch assembly, and fixedly connected with base.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid pressure switch, the special envelope of wherein said plunger employing department seals, and is fixed in the base by damping and screw plug.
Aforesaid pressure switch, wherein said submissile spring abutment is connected with adjusting device by steel ball and adjustable plug screw of marking closely.
Aforesaid pressure switch, wherein said big spring seat is fixedlyed connected with base by elastic cylindrical pin.
Aforesaid pressure switch, wherein said adjusting device is threadedly connected to hull outside.
The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, the utility model pressure switch can reach suitable technological progress and practicality, and has the extensive value on the industry, and it has following advantage at least:
1, the utility model pressure switch, because its different pressure stage structure is identical, plunger is regardless of pressure stage, only need change the conversion that compression spring can be realized the different pressures level as required, so it is simple in structure, general part is how few from workpieces, thereby has reduced difficulty of processing and saved cost, quite has the value of industry.
2, pressure switch of the present utility model has 5 pressure ratings, and range of regulation is bigger, really has more technological progress than existing pressure switch.
3, the special encapsulation technique of the utility model pressure switch employing department has strengthened sealing, has reduced the generation of leaking, and has improved the inherent quality of hydraulic valve and contributes aspect environmental protection; Reduce the frictional force between sealing ring and the plunger, thereby the sensitivity of pressure switch is greatly improved, thereby be more suitable for practicality.
4, the plug screw of marking closely of the utility model pressure switch adopts adjustable special construction, stopped to occur in the adjustment process stuck or damage the appearance of screw thread phenomenon by pressure.
5, the mechanical structure of the big spring seat of the utility model pressure switch, the protection sensitive switch exempts from damage when pressure reduces suddenly, prevents that when hypertonia spring from being damaged by pressure simultaneously.
In sum; the pressure switch of the utility model novelty; simple in structure; adjustable range is bigger; improve sealing and sensitivity, avoided problem stuck or that damage screw thread by pressure, saved cost of manufacture; and the protection sensitive switch exempts from damage when pressure reduces suddenly, prevents that when hypertonia spring from being damaged by pressure simultaneously.The utlity model has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and more existing pressure switch has the multinomial effect of enhancement, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the structural representation of existing pressure switch.
Fig. 2 is the structural representation of the utility model pressure switch.
11: sleeve 12,22: housing
13,23: plunger 131: sealing ring
14: spring 141: spring base
144: contact base 151: regulator bolts
152: micrometer adjusting screw 153: protective cover
154: steel ball 155: jackscrew
16: sensitive switch 163,263: socket
165,265: indicator light plug 21: base
231: built-up shaft one-way sealing 232: damping
233: screw plug 24: compression spring
241: submissile spring abutment 242: steel ball
243: mark closely plug screw 244: the big spring seat
245: elastic cylindrical pin 25: adjusting device
251: mark closely screw 261: insulating cover
262: lead 264: pad
Embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment of pressure switch, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
See also shown in Figure 2, the pressure switch of the utility model preferred embodiment, it mainly comprises: base 21, housing 22, plunger 23, compression spring 24, adjusting device 25 and sensitive switch assembly, wherein:
This base 21 and this housing 22 are spirally connected by soket head cap screw.
This plunger 23 seals with one-way sealing 231 through built-up shaft, and is fixed in the base 21 by damping 232 and screw plug 233.
This compression spring 24 is connected and fixed through submissile spring abutment 241 and big spring seat 244, and wherein this submissile spring abutment 241 is connected with adjusting device 25 by steel ball 242 and adjustable plug screw 243 of marking closely.This big spring seat 244 supports plunger 23, touches with the sensitive switch assembly, and fixedlys connected by elastic cylindrical pin 245 with base 21.
This adjusting device 25 is threadedly connected to housing 22 outsides by marking closely screw 251.
This sensitive switch assembly is made of insulating cover 261, lead 262, socket 263, pad 264 and indicator light plug 265, and whole and housing 22 is spirally connected.
The hydraulic oil of being monitored acts on plunger 23 by the throttle orifice of damping 232, and plunger 23 is supported by big spring seat 244, forms the variable strength that acts on compression spring 24.To the sensitive switch assembly, when pressure was lower than set point, worked immediately by sensitive switch with the Motion Transmission of plunger 23 for big spring seat 244, and discharge same pressure by compression spring 24 near setting pressure the time.In this process, circuit is along with the variation of fluid disconnects or closure.The mechanism of big spring seat 244 guarantees that when pressure reduces suddenly the sensitive switch assembly exempts from infringement, prevents that compression spring 24 from blocking simultaneously when hypertonia.Damping 232 is mounted in standard type on the pressure switch, can also select the damping of different size as accessory as required.
The technological innovation of the utility model pressure switch that above-mentioned structure like this constitutes all has many saving graces for technical staff of the same trade now, and the progressive that possesses skills really.
As mentioned above, of the present utility modelly be contemplated that substantially plunger is regardless of pressure stage, the pressure switch structure of different pressures level is identical, and simple in structure, and it is convenient to change; There are five kinds of regulative modes to enlarge range of regulation; The special envelope sealing of employing department improves sealing and sensitivity; Adopt the plug screw of marking closely of adjustable structure to avoid stuck or damage screw thread by pressure; Utilize the mechanical structure of big spring seat when pressure reduces suddenly, to protect sensitive switch to exempt from damage, prevent that when hypertonia spring from being damaged by pressure simultaneously.But in technical field of the present utility model,, can improve other exercisable embodiment of the present utility model as long as possess the most basic knowledge.In the utility model substantive technical scheme has been proposed the patent protection request, its protection range should comprise all variation patterns with above-mentioned technical characterstic.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (5)
1. a pressure switch adopts plunger type electro-hydraulic pressure mechanism, and it mainly comprises: base (21), housing (22), plunger (23), compression spring (24), adjusting device (25) and sensitive switch assembly is characterized in that wherein:
This compression spring (24) is connected and fixed through submissile spring abutment (241) and big spring seat (244), and wherein this big spring seat (244) supports this plunger (23), touches with the sensitive switch assembly, and fixedlys connected with base (21).
2. pressure switch according to claim 1 is characterized in that the special envelope sealing of wherein said plunger employing department, and is fixed in the base by damping (232) and screw plug (233).
3. pressure switch according to claim 1 is characterized in that wherein said submissile spring abutment (241) is connected with adjusting device (25) by steel ball (242) and adjustable plug screw (243) of marking closely.
4. according to the described pressure switch of arbitrary claim in the claim 1 to 3, it is characterized in that wherein said big spring seat (244) passes through elastic cylindrical pin (245) and fixedlys connected with base.
5. pressure switch according to claim 4 is characterized in that wherein said adjusting device is threadedly connected to hull outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201422612U CN201038062Y (en) | 2007-04-23 | 2007-04-23 | Pressure relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201422612U CN201038062Y (en) | 2007-04-23 | 2007-04-23 | Pressure relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201038062Y true CN201038062Y (en) | 2008-03-19 |
Family
ID=39210581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201422612U Expired - Lifetime CN201038062Y (en) | 2007-04-23 | 2007-04-23 | Pressure relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201038062Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623239A (en) * | 2012-03-31 | 2012-08-01 | 潍坊金丝达环境工程股份有限公司 | Non-contact type pressure relay |
| CN112786353A (en) * | 2021-01-20 | 2021-05-11 | 温岭市飞驰电器科技有限公司 | Plunger type pressure switch |
| CN114068243A (en) * | 2021-12-02 | 2022-02-18 | 上海立新液压有限公司 | Double-sealing plunger pressure relay |
-
2007
- 2007-04-23 CN CNU2007201422612U patent/CN201038062Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623239A (en) * | 2012-03-31 | 2012-08-01 | 潍坊金丝达环境工程股份有限公司 | Non-contact type pressure relay |
| CN102623239B (en) * | 2012-03-31 | 2014-04-09 | 潍坊金丝达环境工程股份有限公司 | Non-contact type pressure relay |
| CN112786353A (en) * | 2021-01-20 | 2021-05-11 | 温岭市飞驰电器科技有限公司 | Plunger type pressure switch |
| CN114068243A (en) * | 2021-12-02 | 2022-02-18 | 上海立新液压有限公司 | Double-sealing plunger pressure relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING HUADE HYDRAULIC INDUSTRIAL GROUP CO., LTD. Free format text: FORMER OWNER: TECHNOLOGY CENTER, HUADE HYDRAULIC INDUSTRIAL GROUP CO., LTD., BEIJING Effective date: 20100920 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100920 Address after: 100176 No. 5 Tongji North Road, Beijing economic and Technological Development Zone Patentee after: Beijing Huade Hydraulic Industrial Group Co., Ltd. Address before: 100176 No. 5 Tongji North Road, Beijing economic and Technological Development Zone Patentee before: Technology Center of Beijing Huade Hydraulic Industrial Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080319 |