CN202420364U - Stroke detecting device used in high pressure environment - Google Patents
Stroke detecting device used in high pressure environment Download PDFInfo
- Publication number
- CN202420364U CN202420364U CN2011204956336U CN201120495633U CN202420364U CN 202420364 U CN202420364 U CN 202420364U CN 2011204956336 U CN2011204956336 U CN 2011204956336U CN 201120495633 U CN201120495633 U CN 201120495633U CN 202420364 U CN202420364 U CN 202420364U
- Authority
- CN
- China
- Prior art keywords
- plug screw
- pressure environment
- contact
- screw plug
- installing
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a stroke detecting device used in the high pressure environment. The detecting device used in the high pressure environment comprises an installing screw plug and an installing casing. The front end of the installing screw plug is connected with one end of the installing casing, two independent contact support columns are connected at the front end of the installing screw plug and are insulated from the installing screw plug, a contact spring is connected onto one contact support column, and the other end of the contact spring is located at the front end of the other contact support column. The tail ends of the contact support columns are connected with leads, and the leads are led out from the installing screw plug and insulated from the installing screw plug. The other end of the installing casing is provided with a top piston, the tail end of the top piston is provided with an insulating spacer, and a resetting spring is arranged between the front end of the installing screw plug and the tail end of the top piston. The stroke detecting device used in the high pressure environment adopts a structure converting mechanical motion of a moving device into an electrical signal for being output, facilitates visual display and intelligent control and improves automation degree of an instrument.
Description
Technical field
The utility model relates to a kind of stroke sensor, the device for detecting distance of travel that especially a kind of high-pressure environment uses down.
Background technology
At present, more abominable at working environments such as down-holes, oil field, exist under the situation of high temperature, high pressure (power), high corrosion, how to judge that the travel position of telecontrol equipment is the comparison difficulty under the hyperbaric environment.Method relatively more commonly used now has: a) inductive electromagnetic method, and promptly utilize ferromagnetic object near hot-wire coil, the interior magnetic flux of coil is changed, thereby produce induced electromotive force signal, the power supply road is detected.The shortcoming of this method is that the material to tool housing and telecontrol equipment has requirement, and the insulated enclosure of coil is difficulty, receives the interference of objects such as oil pipe, water injection allocator easily.B) mechanical position limitation method is promptly utilized the stroke of constructional device constrained motion device.The shortcoming of this method is to damage structural member and motor etc. easily, and is directly perceived inadequately, can not accurately judge the state of telecontrol equipment.
The utility model content
The purpose of the utility model is: the device for detecting distance of travel that uses under a kind of high-pressure environment is provided, and it can intuitively show the state of telecontrol equipment, is convenient to Based Intelligent Control, and fabrication and installation are simple, are not vulnerable to the interference of other object, to overcome the deficiency of prior art.
The utility model is achieved in that the device for detecting distance of travel that uses under the high-pressure environment; Comprise plug screw, installation shell are installed; The front end that plug screw is installed is connected the end that shell is installed, and is connected with two independently contact trees at the front end that plug screw is installed, mutually insulated between contact tree and the installation plug screw; Be connected with contact spring on a contact tree therein, the other end of contact spring is in the front end of another contact tree; End at contact tree is connected with lead, and lead is drawn through plug screw is installed, and insulate with the installation plug screw; The other end in that shell is installed is provided with the top piston, and piston end is provided with insulation spacer in the top, between the end of front end that plug screw is installed and top piston, is provided with back-moving spring.
End in that plug screw is installed is connected with balance piston.Balance piston ability holding device internal pressure at work and outer equilibrium have guaranteed sealed insulation property and the kinematic dexterity of device under high-pressure environment; And reduced requirement to outer cover intensity and back-moving spring elastic force.
Between installation plug screw and installation shell, be provided with O-ring seal.Improve and plug screw is installed and the sealing between the shell is installed.
Between installation plug screw and lead, be provided with lead packing ring and hold-down bolt.Make lead by well secured.
Inboard in that shell is installed is provided with the limited step corresponding with coming directly towards piston.Restriction top piston is moving in certain stroke, prevents the supercompression contact spring and damages or come directly towards piston and deviate from.
Owing to adopted technique scheme, compared with prior art, the utility model has adopted the structure that the mechanical motion of telecontrol equipment is converted to electric signal output, is convenient to directly perceived the demonstration and Based Intelligent Control, has improved the automaticity of instrument.And make internal pressure and outer equilibrium in the device busy through balance piston, guaranteed sealed insulation property and the kinematic dexterity of device under high-pressure environment; And reduced requirement to outer cover intensity and back-moving spring elastic force, therefore reduced cost of manufacture.The utility model is simple in structure, and result of use is good.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
Embodiment
The embodiment of the utility model: the structure of the device for detecting distance of travel that high-pressure environment uses down is as shown in Figure 1; Comprise plug screw 1, installation shell 3 are installed; The front end that plug screw 1 is installed and the end that shell 3 is installed have two independently contact trees 8 (contact tree 8 can be processed by brass) through being threaded in the front end riveted joint that plug screw 1 is installed, and carry out insulation processing between installation plug screw 1 and the contact tree 8; Make mutually insulated between them; (contact spring 7 can be by elasticity beryllium-bronze material processing preferably, and contact tree 8 all carries out surface gold-plating with contact spring 7 and handle, to improve electric conductivity for contact spring 7 of welding on contact tree 8 therein; Reduce the contact point resistance), the other end of contact spring 7 is in the front end of another contact tree 8; End at contact tree 8 is connected with lead 12; Lead 12 is drawn through plug screw 1 is installed; On installation plug screw 1, lead 12 is fixed with lead packing ring 10 and hold-down bolt 11; Lead 12 and mutually insulated between the plug screw 1 (lead 12 can adopt the fluoroplastic lead with integral insulation layer, like AF-250-0.2, it is high temperature resistant, corrosion-resistant and the high pressure resistant insulation performance is good) is installed; Be provided with top piston 5 at the other end that shell 3 is installed; Insulation spacer 6 on top piston 5 terminal stickups is provided with back-moving spring 4 between the end of front end that plug screw 1 is installed and top piston 5.
In use; The exit of lead 12 is connected on the corresponding treatment circuit plate; In the installation shell 3 that assembles, pour into transformer oil, when external force promoted to come directly towards piston 5 left, top piston 5 drives insulation spacer 6 made the root of contact spring 7 produce elastic deformation; The other end of contact spring 7 and 8 contacts of corresponding contact tree make device for detecting distance of travel produce the electric signal of " conducting "; Piston 5 is in left movement in the top; Back-moving spring 4 is compressed, and produces screen resilience, when external force is cancelled; Under the screen resilience effect of spring 4; Top piston 5 drives insulation spacer 6 and moves right, and contact spring 7 breaks off with one of them contact tree 8, makes device for detecting distance of travel produce the electric signal of " disconnection "; Be installed in the balance piston 9 that plug screw 1 end is installed, make device internal pressure and external pressure keep balance; Suitable space is left in the outside of balance piston 9, and when coming directly towards piston 5 to left movement, under the hydraulic principle effect, balance piston 9 is followed and is moved to the left, and vice versa.
Claims (5)
1. the device for detecting distance of travel that uses down of a high-pressure environment; Comprise plug screw (1), installation shell (3) are installed; The front end that plug screw (1) is installed is connected the end that shell (3) is installed; It is characterized in that: the front end in that plug screw (1) is installed is connected with two independently contact trees (8); Mutually insulated between contact tree (8) and the installation plug screw (1) is connected with contact spring (7) on the contact tree (8) therein, and the other end of contact spring (7) is in the front end of another contact tree (8); End at contact tree (8) is connected with lead (12), and lead (12) is drawn through plug screw (1) is installed, and insulate with installation plug screw (1); Be provided with top piston (5) at the other end that shell (3) is installed, piston (5) end is provided with insulation spacer (6) in the top, between the end of front end that plug screw (1) is installed and top piston (5), is provided with back-moving spring (4).
2. the device for detecting distance of travel that high-pressure environment according to claim 1 uses down is characterized in that: the end in that plug screw (1) is installed is connected with balance piston (9).
3. the device for detecting distance of travel that high-pressure environment according to claim 1 uses down is characterized in that: between installation plug screw (1) and installation shell (3), be provided with O-ring seal (2).
4. the device for detecting distance of travel that high-pressure environment according to claim 1 uses down is characterized in that: between installation plug screw (1) and lead (12), be provided with lead packing ring (10) and hold-down bolt (11).
5. the device for detecting distance of travel that high-pressure environment according to claim 1 uses down is characterized in that: be provided with in the inboard that shell (3) is installed and come directly towards the corresponding limited step of piston (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204956336U CN202420364U (en) | 2011-12-02 | 2011-12-02 | Stroke detecting device used in high pressure environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204956336U CN202420364U (en) | 2011-12-02 | 2011-12-02 | Stroke detecting device used in high pressure environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202420364U true CN202420364U (en) | 2012-09-05 |
Family
ID=46745121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204956336U Expired - Lifetime CN202420364U (en) | 2011-12-02 | 2011-12-02 | Stroke detecting device used in high pressure environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202420364U (en) |
-
2011
- 2011-12-02 CN CN2011204956336U patent/CN202420364U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2011200862A5 (en) | ||
| EP2654046A3 (en) | Sealed inductor connection using litz wire | |
| CN202420364U (en) | Stroke detecting device used in high pressure environment | |
| CN108072393A (en) | A kind of insulated rotary encoder | |
| CN102568740B (en) | Flameproof electromagnet | |
| CN201679982U (en) | Mining multifunctional explosion-proof electrical ball valve | |
| CN203642865U (en) | Wet linear displacement feedback potentiometer | |
| CN205280280U (en) | Water under detector excessive pressure alarm device | |
| CN203516755U (en) | Electronic type electric accurate small-size single-seated adjusting valve | |
| CN2270960Y (en) | Separating inductive approach sensor | |
| CN202308573U (en) | Sealing through-wall connector | |
| RU2013104790A (en) | DEVICE FOR CONNECTED SEALED ELECTRICAL CONNECTOR ACCORDING TO THE TYPE "WET CONTACT" FOR ELECTRICAL CONNECTION OF A CABLE LINE IN A CONDUCTING MEDIA | |
| CN203011587U (en) | Aviation plug output type pressure sensor | |
| CN203103562U (en) | Electrical connecting device | |
| CN203288488U (en) | A vacuum circuit breaker contact arm sleeve capable of online measuring the temperature of a contact | |
| CN111415832A (en) | Non-induction type small-sized underwater push type switch | |
| CN105424270A (en) | Underwater detector overpressure alarm device | |
| CN104422427B (en) | A kind of mechanical switch type depth transducer | |
| CN217849407U (en) | Contactless underwater travel switch | |
| CN203325898U (en) | Improved TO-92 MOD packaging lead wire framework | |
| CN209355820U (en) | It is a kind of to use sensor under water | |
| CN204441863U (en) | A kind of generator electric leakage protector | |
| CN203434307U (en) | Motor releaser thread device | |
| CN203163886U (en) | Fire hazard temperature detector for kitchen equipment | |
| CN220250935U (en) | External magnetostriction linear displacement sensor adaptable to narrow space |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |