CN204479236U - A kind of diving blowout-back pressure gauge - Google Patents
A kind of diving blowout-back pressure gauge Download PDFInfo
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- CN204479236U CN204479236U CN201520178411.XU CN201520178411U CN204479236U CN 204479236 U CN204479236 U CN 204479236U CN 201520178411 U CN201520178411 U CN 201520178411U CN 204479236 U CN204479236 U CN 204479236U
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- Prior art keywords
- watchcase
- joint
- blowout
- bourdon tube
- diving
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Abstract
The utility model discloses a kind of diving blowout-back pressure gauge, belong to tensimeter technical field.Tensimeter of the present utility model comprises measuring mechanism, indicating mechanism and shell mechanism, and Bourdon tube is spiral Bourdon tube, and this spiral Bourdon tube adopts twice bending; Joint is through the square hole on plastic stent, and O shape snare is in the junction of joint and square hole; Joint passes from the bellmouth of watchcase, the bellmouth interference fit seal of O shape circle lateral surface and watchcase; The bottom of plastic stent is provided with two holes, is provided with two projections bottom watchcase, and above-mentioned two projections match with the hole of two bottom plastic stent; Explosion-proof stopple is arranged in the explosionproof hole bottom watchcase.Tensimeter of the present utility model achieves the strong and function that waterproof ability is strong of shock resistance.
Description
Technical field
The utility model relates to tensimeter technical field, more particularly, relates to a kind of diving blowout-back pressure gauge.
Background technology
Bourdon tube is the elastic sensing element utilizing the bending change of pipe or torsional deflection to measure pressure, also known as bourdon tube.One end of Bourdon tube is fixed, and one end is movable, and its cross sectional shape is oval or pancake.Be expanded into circle gradually under the effect of the pipe of noncircular cross section within it pressure, now movable end produces the displacement becoming certain relation with pressure size.Movable end drives pointer to get final product the size of indicated pressure.The most frequently used Bourdon tube is C type, also has the types such as screw type, the combination of C type, fried dough twist type in addition.The material of Bourdon tube adopts copper base or ferrous alloy.It is less with other pressure-sensing device phase specific sensitivitys, is usually used in measuring larger pressure, often combinationally uses with other flexible members.Bourdon tube widespread use in many instruments, especially for the measurement aspect of pressure and power.
Current general high voltage tensimeter generally adopts the spiral Bourdon tube of three road bendings as flexible member, although this element convenient welding shock resistance is poor, often occurs pointer not back to zero and the quality problems such as precision is overproof.Meanwhile, its joint of general high voltage tensimeter and watchcase usually adopt inside and outside joint screw thread to be connected and the form adding seal with O ring links together, and can lose efficacy, therefore there is the insecure hidden danger of quality of waterproof because the screw thread glue time has been grown.
In prior art, for the problem of blowout-back pressure gauge shock resistance difference, existing disclosed solution, as Chinese Patent Application No.: 2011204037789, the applying date: on October 21st, 2011, invention and created name is: anti-shock pressure meter, disclosed in this application case, anti-shock pressure meter is by shell, scale, pointer, metal diaphragm, driver, bourdon tube, pull bar, sector gear and gear shaft composition, metal diaphragm bottom anti-shock pressure meter is connected by spring with between manometric gearing, the pressure that metal diaphragm is subject to is by after spring buffer, pass to manometric gearing and pointer again, to reduce the vibrations of measured medium to gearing and pointer, thus realize the object measuring superhigh pressure liquid or gas.The deficiency of this application case is pointed out to be, be connected by spring between metal diaphragm with manometric gearing, although spring can reduce the vibrations of measured medium to gearing and pointer, but also make the pressure of measured medium can not be measured quickly simultaneously, reduce manometric measurement sensistivity; And on gearing linking springs, easily increase the failure rate of gearing, reduce the measuring accuracy of gearing.How developing one can high-efficient anti-vibration, and the blowout-back pressure gauge that sensitivity is higher is again a difficult problem of the prior art.
Utility model content
1. the utility model technical matters that will solve
The purpose of this utility model is to overcome deficiency following in prior art: (1) blowout-back pressure gauge shock resistance is poor; (2) the thread connecting mode waterproof between its joint and watchcase of blowout-back pressure gauge is unreliable, provides a kind of diving blowout-back pressure gauge, achieves the strong and function that waterproof ability is strong of shock resistance.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
One diving blowout-back pressure gauge of the present utility model, comprise measuring mechanism, indicating mechanism and shell mechanism, described measuring mechanism comprise Bourdon tube, movement, antidetonation silently, link rivet, connecting rod, drive rivet and joint, be characterized in: described Bourdon tube is spiral Bourdon tube, and this spiral Bourdon tube adopts twice bending design.
Further improve as the utility model, the stiff end of described Bourdon tube is together with weld, free end and the antidetonation of Bourdon tube silently weld together, one end rivet of connecting rod and antidetonation are silently riveted, the other end rivet of connecting rod and movement are riveted, and movement and joint are fixed together by drive rivet.
Further improve as the utility model, described indicating mechanism comprises pointer, restriction nail and index dial, and index dial is fixed on joint, and restriction nail is fixed on index dial, and pointer is arranged on the sun gear shaft of movement.
Further improve as the utility model, described shell mechanism comprises diaphanoscope, cover circle, annular seal circle, watchcase, explosion-proof stopple, O-ring seal, sealing screw, O shape circle and plastic stent, the left end of described plastic stent has square hole, joint is through the square hole on plastic stent, and O shape snare is in the junction of joint and square hole; The left surface of watchcase is provided with bellmouth, and joint passes from the bellmouth of watchcase, the bellmouth interference fit seal of O shape circle lateral surface and watchcase.
Further improve as the utility model, the different range position of described index dial scribbles the fluorescent material of different glow color.
Further improve as the utility model, the bottom of described plastic stent is provided with two holes, is provided with two projections bottom watchcase, and above-mentioned two projections match with the hole of two bottom plastic stent.
Further improve as the utility model, described sealing screw has two, and two sealing screws are connected with joint screw thread with plastic stent respectively through watchcase, junction cushioning two O-ring seals of two sealing screws and watchcase; The upper end open of watchcase, this opening part is mounting circular ring shape O-ring seal, diaphanoscope and cover circle successively.
Further improve as the utility model, described explosion-proof stopple is arranged in the explosionproof hole bottom watchcase.
3. beneficial effect
The technical scheme adopting the utility model to provide, compared with prior art, has following beneficial effect:
(1) in the utility model, Bourdon tube is spiral Bourdon tube, and this spiral Bourdon tube adopts twice bending design, the present inventor sums up through great many of experiments and finds, adopt the spiral Bourdon tube of twice bending to have better shock resistance as flexible member, and sensitivity is higher.
(2) the utility model center tap and watchcase do not adopt traditional being threaded, but joint is directly through the bellmouth of watchcase, the bellmouth interference fit seal of O shape circle lateral surface and watchcase simultaneously, such is designed with following advantage: 1) this kind of connected mode efficiency of assembling is high, and water resistance is good; 2) contact position of joint and watchcase is without the need to arranging screw thread, reduces the processing cost of joint, simultaneously without the need to using screw thread glue, has saved resource.
(3) two projections in the utility model bottom watchcase match with the hole of two bottom plastic stent, play positioning action; Plastic stent had not only supported O shape circle but also can supported joint, and played the effect of antidetonation.
(4) in the utility model, the different range positions of index dial scribble the fluorescent material of different glow color, and under dark condition, different range position sends the light of different colours, are convenient to intuitively read pressure parameter accurately under dark condition.
(5) in the explosionproof hole in the utility model bottom explosion-proof stopple push table shell, play waterproof action, if there is seepage in tensimeter, pressure in tensimeter is once reach 0.1MPa, and explosion-proof stopple is then blown automatically, tensimeter releasing pressure automatically; When needs tensimeter inner chamber note glycerine or silicone oil as shock-proof pressure gauge time, plug cock is then replaced by explosion-proof stopple.
Accompanying drawing explanation
Fig. 1 is the structural representation of measuring mechanism in the utility model.
Fig. 2 is the structural representation of indicating mechanism in the utility model.
Fig. 3 is sectional structure schematic diagram of the present utility model.
Fig. 4 is the A direction view in Fig. 3.
Label declaration in schematic diagram:
1, Bourdon tube; 2, movement; 3, antidetonation silently; 4, link rivet; 5, connecting rod; 6, drive rivet; 7, joint; 8, pointer; 9, restriction nail; 10, index dial; 11, diaphanoscope; 12, cover circle; 13, annular seal circle; 14, watchcase; 15, explosion-proof stopple; 16, O-ring seal; 17, sealing screw; 18, O shape circle; 19, plastic stent.
Embodiment
For understanding content of the present utility model further, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
As shown in Figure 1, the tensimeter of the present embodiment comprises measuring mechanism, indicating mechanism and shell mechanism, measuring mechanism comprise Bourdon tube 1, movement 2, antidetonation silently 3, link rivet 4, connecting rod 5, drive rivet 6 and joint 7, Bourdon tube 1 is spiral Bourdon tube, and this spiral Bourdon tube adopts twice bending design; Stiff end and the joint 7 of Bourdon tube 1 adopt argon arc welding, the free end of Bourdon tube 1 and antidetonation silently 3 adopt argon arc welding, one end of connecting rod 5 silently 3 is riveted by rivet 4 and antidetonation, other end rivet 4 and the movement 2 of connecting rod 5 are riveted, and movement 2 and joint 7 press with two drive rivets 6 and be fixed together.
As shown in Figure 2, indicating mechanism comprises pointer 8, restriction nail 9 and index dial 10, index dial 10 can be luminous under dark condition, rivet clasp is revolved calmly in the upper end of two fixing borehole jacks on index dial 10 and two drive rivets 6 on joint 7, restriction nail 9 and index dial 10 are riveted fixing, and pointer 8 presses on the sun gear shaft of movement 2.In the present embodiment, the different range positions of index dial 10 scribble the fluorescent material of different glow color, and under dark condition, different range position sends the light of different colours, are convenient to intuitively read pressure parameter accurately under dark condition.
As shown in Figure 3 and Figure 4, shell mechanism comprises diaphanoscope 11, cover circle 12, annular seal circle 13, watchcase 14, explosion-proof stopple 15, O-ring seal 16, sealing screw 17, O shape circle 18 and plastic stent 19, the left end of plastic stent 19 has square hole, joint 7 is first through the square hole on plastic stent 19, and O shape circle 18 is enclosed within the junction of joint 7 and square hole; The left surface of watchcase 14 is provided with bellmouth, and joint 7 passes from the bellmouth of watchcase 14, and O shape encloses the bellmouth interference fit seal of 18 lateral surfaces and watchcase 14.It is emphasized that, joint 7 does not adopt traditional being threaded with watchcase 14 herein, but joint 7 is directly through the bellmouth of watchcase 14, O shape encloses the bellmouth interference fit seal of 18 lateral surfaces and watchcase 14 simultaneously, like this be designed with following advantage: 1) this kind of connected mode efficiency of assembling is high, and water resistance is good; 2) joint 7 and the contact position of watchcase 14 are without the need to arranging screw thread, reduce the processing cost of joint 7, simultaneously without the need to using screw thread glue, have saved resource.
The bottom of plastic stent 19 is provided with two holes, is provided with two projections bottom watchcase 14, and above-mentioned two projections match with two holes bottom plastic stent 19, play positioning action; Plastic stent 19 had not only supported O shape circle 18 but also can supported joint 7, and played the effect of antidetonation.
Two sealing screws 17 are threaded through the threaded hole on the hole on watchcase 14 and the Kong Eryu joint 7 on plastic stent 19, junction cushioning two O-ring seals 16 of two sealing screws 17 and watchcase 14; The upper end open of watchcase 14, this opening part is mounting circular ring shape O-ring seal 13, diaphanoscope 11 and cover circle 12 successively, then the junction of cover circle 12 and watchcase 14, cover circle 12 is sealed with the junction roll extrusion of diaphanoscope 11 on special edge knurling machine.
Explosion-proof stopple 15 is pressed in the explosionproof hole bottom watchcase 14, plays waterproof action, if there is seepage in tensimeter, pressure in tensimeter is once reach 0.1MPa, and explosion-proof stopple 15 is blown automatically, tensimeter releasing pressure automatically; When needs tensimeter inner chamber note glycerine or silicone oil as shock-proof pressure gauge time, plug cock is then replaced by explosion-proof stopple 15.
Its parts of the tensimeter of the present embodiment all adopt anti-corrosion material to make, and seal all adopts long service life, and the material of good sealing effect is made.
Its principle of work of the tensimeter of the present embodiment is: when after tensimeter and equipment connection, under the influence of air pressure, the free end of Bourdon tube 1 outwards produces displacement, this be displaced through antidetonation silently 3, link rivet 4 is delivered to movement 2, rotated by the gear drive of movement 2 and amplify, pressure indicates by the pointer be assemblied on movement 2 sun gear shaft on index dial 10.
Schematically above be described the utility model and embodiment thereof, this description does not have restricted, and also just one of the embodiment of the present utility model shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the utility model and creating aim, design the frame mode similar to this technical scheme and embodiment without creationary, protection domain of the present utility model all should be belonged to.
Claims (8)
1. a diving blowout-back pressure gauge, comprise measuring mechanism, indicating mechanism and shell mechanism, described measuring mechanism comprises Bourdon tube (1), movement (2), antidetonation silently (3), link rivet (4), connecting rod (5), drive rivet (6) and joint (7), it is characterized in that: described Bourdon tube (1) is spiral Bourdon tube, and this spiral Bourdon tube adopts twice bending design.
2. one diving blowout-back pressure gauge according to claim 1, it is characterized in that: stiff end and the joint (7) of described Bourdon tube (1) weld together, the free end of Bourdon tube (1) and antidetonation silently (3) weld together, one end of connecting rod (5) with rivet (4) and antidetonation silently (3) rivet, the other end of connecting rod (5) is riveted with rivet (4) and movement (2), and movement (2) and joint (7) are fixed together by drive rivet (6).
3. one diving blowout-back pressure gauge according to claim 1, it is characterized in that: described indicating mechanism comprises pointer (8), restriction nail (9) and index dial (10), index dial (10) is fixed on joint (7), restriction nail (9) is fixed on index dial (10), and pointer (8) is arranged on the sun gear shaft of movement (2).
4. one diving blowout-back pressure gauge according to claim 1, it is characterized in that: described shell mechanism comprises diaphanoscope (11), cover circle (12), annular seal circle (13), watchcase (14), explosion-proof stopple (15), O-ring seal (16), sealing screw (17), O shape circle (18) and plastic stent (19), the left end of described plastic stent (19) has square hole, joint (7) is through the square hole on plastic stent (19), and O shape circle (18) is enclosed within the junction of joint (7) and square hole; The left surface of watchcase (14) is provided with bellmouth, and joint (7) passes from the bellmouth of watchcase (14), the bellmouth interference fit seal of O shape circle (18) lateral surface and watchcase (14).
5. one diving blowout-back pressure gauge according to claim 3, is characterized in that: described index dial (10) different range position scribbles the fluorescent material of different glow color.
6. one diving blowout-back pressure gauge according to claim 4, it is characterized in that: the bottom of described plastic stent (19) is provided with two holes, watchcase (14) bottom is provided with two projections, and above-mentioned two projections match with two holes of plastic stent (19) bottom.
7. one diving blowout-back pressure gauge according to claim 4, it is characterized in that: described sealing screw (17) has two, two sealing screws (17) are threaded with joint (7) respectively through watchcase (14) and plastic stent (19), junction cushioning two O-ring seals (16) of two sealing screws (17) and watchcase (14); The upper end open of watchcase (14), this opening part is mounting circular ring shape O-ring seal (13), diaphanoscope (11) and cover circle (12) successively.
8. one diving blowout-back pressure gauge according to claim 4, is characterized in that: described explosion-proof stopple (15) is arranged in the explosionproof hole of watchcase (14) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520178411.XU CN204479236U (en) | 2015-03-27 | 2015-03-27 | A kind of diving blowout-back pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520178411.XU CN204479236U (en) | 2015-03-27 | 2015-03-27 | A kind of diving blowout-back pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204479236U true CN204479236U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520178411.XU Expired - Fee Related CN204479236U (en) | 2015-03-27 | 2015-03-27 | A kind of diving blowout-back pressure gauge |
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| CN (1) | CN204479236U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106695149A (en) * | 2016-12-30 | 2017-05-24 | 马鞍山市瑞东仪表有限责任公司 | Anti-leakage welding process for high pressure spiral pipe free end of pressure gauge |
| CN107367350A (en) * | 2017-08-17 | 2017-11-21 | 张舜先 | Multifunctional safety pressure gauge |
| CN109211466A (en) * | 2018-08-23 | 2019-01-15 | 芜湖凯兴汽车电子有限公司 | A kind of waterproof and dampproof formula pressure gauge |
| CN109974904A (en) * | 2019-03-15 | 2019-07-05 | 上海电仪仪器仪表有限公司 | A kind of pressure meter structure |
| CN110186611A (en) * | 2019-04-23 | 2019-08-30 | 安徽天康(集团)股份有限公司 | Memory-type pressure gauge |
| CN111780917A (en) * | 2020-06-08 | 2020-10-16 | 重庆昆仑仪表有限公司 | Absolute pressure gauge |
-
2015
- 2015-03-27 CN CN201520178411.XU patent/CN204479236U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106695149A (en) * | 2016-12-30 | 2017-05-24 | 马鞍山市瑞东仪表有限责任公司 | Anti-leakage welding process for high pressure spiral pipe free end of pressure gauge |
| CN107367350A (en) * | 2017-08-17 | 2017-11-21 | 张舜先 | Multifunctional safety pressure gauge |
| CN107367350B (en) * | 2017-08-17 | 2023-11-03 | 青岛科奥仪表制造有限公司 | Multifunctional safety pressure gauge |
| CN109211466A (en) * | 2018-08-23 | 2019-01-15 | 芜湖凯兴汽车电子有限公司 | A kind of waterproof and dampproof formula pressure gauge |
| CN109974904A (en) * | 2019-03-15 | 2019-07-05 | 上海电仪仪器仪表有限公司 | A kind of pressure meter structure |
| CN110186611A (en) * | 2019-04-23 | 2019-08-30 | 安徽天康(集团)股份有限公司 | Memory-type pressure gauge |
| CN111780917A (en) * | 2020-06-08 | 2020-10-16 | 重庆昆仑仪表有限公司 | Absolute pressure gauge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20180327 |
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| CF01 | Termination of patent right due to non-payment of annual fee |