CN115560905A - Anti vibration type manometer that shimmys - Google Patents

Abstract

The utility model relates to an anti vibration type manometer that quivers uses in the technical field of manometer, and it includes the manometer body, be equipped with the anti vibration pipe fitting on the casing of manometer body, the one end of the bourdon tube of manometer body is connected the core of manometer body, the other end with the anti vibration pipe fitting links to each other, the anti vibration pipe fitting is fixed on the pipeline that is used for carrying the fluid. This application has the anti vibration ability that promotes the manometer for the pointer is difficult for frequently vibrating when the manometer is installed on the pipeline, makes things convenient for the reading, improves the effect of manometer measuring accuracy.

Description

Anti vibration type manometer that shimmys

Technical Field

The application relates to the technical field of pressure gauges, especially, relate to a type manometer that shakes is alleviated in anti vibration.

Background

The pressure gauge is an instrument which takes an elastic element as a sensitive element, is pressed by the sensitive element in the gauge to generate elastic deformation, and is converted by a machine core to amplify the deformation and drive a pointer to rotate so as to measure and display the pressure higher than the environmental pressure. Especially in the industrial process control and technical measurement process, the mechanical pressure gauge is more and more widely applied because the elastic sensitive element of the mechanical pressure gauge has the characteristics of high mechanical strength, convenient production and the like.

In the related art, the pressure gauge comprises a pressure gauge body and a connecting piece arranged on the pressure gauge body, and the connecting piece is connected with a pipeline or equipment to be measured.

In view of the above related technologies, the inventor thinks that the pressure gauge is installed on the pipe and is influenced by the fluid delivery in the pipe, the pipe is prone to generate vibration, so that the pointer of the pressure gauge vibrates, which causes deviation of readings of an operator and affects the accuracy of measuring the pressure in the pipe.

Disclosure of Invention

When installing the pressure measurement operation on the pipeline in order to improve the manometer, the pipeline receives fluid transport to influence, easily produces the vibration so that the gauge needle appears vibrating the phenomenon, leads to the problem that the reading has the deviation, and this application provides a vibration resistance type manometer that quivers.

The application provides a vibration-proof type manometer adopts following technical scheme:

the utility model provides a type of shakeproof manometer, includes the manometer body, be equipped with the anti vibration pipe fitting on the casing of manometer body, the core of manometer body is connected to the one end of the bourdon tube of manometer body, the other end with the anti vibration pipe fitting links to each other, the anti vibration pipe fitting is fixed on the pipeline that is used for carrying fluid.

Through adopting above-mentioned technical scheme, when using this manometer to measure fluid pressure, fluid pressure passes through the anti vibration pipe fitting and transmits for the spring pipe, and the spring pipe receives pressure to take place deformation, orders about the core and rotates, and the core drives the pointer rotation of manometer body and points out the pressure value on the dial plate of manometer body, supplies the operator reading.

The anti-vibration pipe fitting is arranged on the shell, during pressure measurement, fluid flows into the anti-vibration pipe fitting, impact force generated by the anti-vibration pipe fitting during fluid flow is weakened, instantaneous impact force applied to the spring pipe by fluid flow is reduced, pressure change in the spring pipe is gentle, the condition that the pointer vibrates due to instantaneous change of fluid flow rate is reduced, operator reading is facilitated, and measurement accuracy is improved.

Optionally, the anti-vibration pipe fitting includes a fixed pipe, a movable pipe and a connecting pipe, the fixed pipe is fixed on the housing, the movable pipe is sleeved on the fixed pipe, the fixed pipe and the movable pipe are connected through a connecting assembly, the connecting pipe is communicated with the movable pipe, and the connecting pipe is connected with a flange of a pipeline for conveying fluid;

the movable tube with form the cushion chamber between the fixed pipe, be equipped with the buffering subassembly in the cushion chamber, the buffering subassembly is used for the buffering the movable tube to the vibration of fixed pipe transmission.

Through adopting above-mentioned technical scheme, the loose tube cup joints on the lateral wall of fixed pipe, connecting pipe intercommunication loose tube and with the pipeline flange joint who is used for carrying fluid, when the pipeline takes place the vibration, the vibration can be transmitted to the loose tube via the connecting pipe, links to each other through coupling assembling between loose tube and the fixed pipe, can bring the condition of vibration to the transmission of fixed pipe.

Consequently, set up the buffering subassembly in the buffering intracavity, the buffering subassembly has cushioned the vibration that the movable tube transmitted to fixed pipe for fixed pipe is difficult for receiving the influence that the movable tube vibrated, and then has reduced the fixed pipe vibration and has leaded to the condition that the indicator quivered.

Optionally, coupling assembling includes first go-between, second go-between and a pair of flexible go-between, first go-between cup joints and is fixed in on the lateral wall of fixed pipe, the second go-between is fixed in the activity pipe is kept away from on the inner wall of first go-between one end, one of them flexible go-between connects first go-between with the activity pipe, another flexible go-between connect the second go-between with fixed pipe.

By adopting the technical scheme, the first connecting ring is fixed on the fixed pipe and is connected with the inner wall of the movable pipe through the telescopic connecting ring, the second connecting ring is fixed on the movable pipe and is connected with the side wall of the fixed pipe through the other telescopic connecting ring, and the connection between the movable pipe and the fixed pipe is completed.

When the pipeline vibrates and will vibrate and pass through the movable tube to fixed pipe, the telescopic connection ring receives the vibration influence constantly to warp and recover, consumes the vibration energy, has reduced the vibration transmission between movable tube and the fixed pipe for fixed pipe is difficult for receiving the vibration influence and takes place the vibration.

Optionally, the buffer assembly includes an outer ring spring and an inner ring spring, the outer ring spring and the inner ring spring are both sleeved on the side wall of the fixed pipe, and the outer ring spring is located between the inner ring spring and the movable pipe;

one end of the outer ring spring is connected with the first connecting ring, the other end of the outer ring spring is connected with the second connecting ring, one end of the inner ring spring is connected with the first connecting ring, and the other end of the inner ring spring is connected with the second connecting ring.

Through adopting above-mentioned technical scheme, outer lane spring and inner circle spring cooperation are used, and when the movable tube was influenced by the connecting pipe vibration and takes place to slide, outer lane spring and inner circle spring under self elastic action, through compressing constantly, restoreing, consumption vibration energy has reduced the influence of movable tube vibration to fixed pipe.

Optionally, an accommodating cavity is formed between the inner ring spring and the outer ring spring, a buffering air bag is arranged in the accommodating cavity, and a buffering liquid is packaged in the buffering air bag.

Through adopting above-mentioned technical scheme, set up the buffering gasbag that the inside encapsulation has buffer solution holding the intracavity, buffering gasbag fills up and holds the chamber, fills the clearance between outer lane spring and the inner circle spring, and outer lane spring and inner circle spring can constantly extrude buffering gasbag in compression and reduction process, and the buffering gasbag has further reduced the vibration transmission between movable pipe and the fixed pipe to outer lane spring and inner circle spring application damping force.

Optionally, the connecting pipe and the fixed pipe together form an overflow channel, the overflow channel connects the spring pipe and a pipeline for conveying fluid, a diaphragm is arranged in the overflow channel, the diaphragm is fixed on the inner wall of the fixed pipe, a hydraulic cavity is formed between the diaphragm, the spring pipe and the fixed pipe, and hydraulic oil is sealed in the hydraulic cavity.

Through adopting above-mentioned technical scheme, flow through the passageway intercommunication spring pipe and be used for the pipeline of transported substance body, set up the diaphragm in the passageway that overflows and cut off interior fluid in hydraulic pressure chamber and pipeline to in hydraulic pressure intracavity encapsulation hydraulic oil, the diaphragm is protruding to take place to deform in the hydraulic pressure intracavity under the fluidic pressure effect in the pipeline, hydraulic pressure intracavity space reduces, hydraulic oil is compressed so that pressure increase, makes the spring pipe take place to deform, orders about the core motion and then drives the pointer rotation, point out the pipeline internal pressure on the dial plate.

Optionally, a plurality of flow buffering plates are arranged in the connecting pipe at intervals and are arranged along the extending direction of the connecting pipe, overflowing holes are formed in the flow buffering plates in a penetrating mode, and the overflowing holes in the two adjacent flow buffering plates are arranged in a staggered mode.

Through adopting above-mentioned technical scheme, when the fluid flows through the connecting pipe, partly fluid can strike on the current buffering board, and the velocity of flow can slow down, and fluid passes crisscross discharge orifice who sets up in proper order, flows along the curve for the fluid velocity of flow in the connecting pipe is difficult for receiving velocity of flow transient variation and produces undulantly, and then has reduced the interior surge of connecting pipe and has leaded to the pointer to deflect and exceed maximum range so that produce the possibility of damage.

Optionally, the spoiler is provided with a spoiler assembly at the position of the flow passing hole, the spoiler assembly comprises a fixed shaft, the fixed shaft is fixed on the spoiler, the spoiler wheel is mounted on the fixed shaft, and the spoiler wheel is arranged in the flow passing hole.

Through adopting above-mentioned technical scheme, set up the vortex subassembly in the position of overflowing hole, when the fluid stream crossed the discharge orifice, under fluid impact, the vortex wheel rotated fast, stirred broken fluid for the fluid is difficult for forming high-pressure liquid stream when passing through the vortex wheel, makes the water pressure change in the connecting tube tend to the mild, is difficult for producing the surge phenomenon.

Optionally, a flow guiding ridge is arranged on the inner wall of the connecting pipe, and the flow guiding ridge is spiral and arranged along the extending direction of the connecting pipe.

By adopting the technical scheme, the flow guide ridges are arranged on the inner wall of the connecting pipe and are spirally arranged, and when fluid flows through the connecting pipe, wall-attached rotational flow is formed under the flow guide effect of the flow guide ridges, so that the condition that the fluid directly impacts on the buffer plate to cause the buffer plate to vibrate is reduced; on the other hand, the effect of reducing noise generated when the fluid flows is achieved.

Optionally, damping fluid is packaged in the shell and overflows the top end of the pointer of the pressure gauge body.

Through adopting above-mentioned technical scheme, encapsulation damping fluid in the casing for resistance increase in the casing will receive damping fluid resistance effect when the pointer swings, so the pointer is more stable, has played the effect that reduces the pointer and quiver, has promoted measurement accuracy. In addition, the damping liquid soaks pointer and core, plays the lubrication action to pointer and core, has prolonged the life of manometer.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the anti-vibration pipe fitting is arranged on the shell, when pressure is measured, fluid flows into the anti-vibration pipe fitting, the anti-vibration pipe fitting weakens impact force generated when the fluid flows, instantaneous impact force applied to the spring pipe by the fluid flowing is reduced, pressure in the spring pipe changes smoothly, the condition that a pointer vibrates due to instantaneous change of fluid flow speed is reduced, reading of an operator is facilitated, and measuring accuracy is improved;

2. the buffer air bag is filled in the accommodating cavity and fills a gap between the outer ring spring and the inner ring spring, the buffer air bag can be continuously extruded by the outer ring spring and the inner ring spring in the compression and reduction processes, and the buffer air bag exerts damping force on the outer ring spring and the inner ring spring, so that the vibration transmission between the movable pipe and the fixed pipe is further weakened;

3. the inner wall of the connecting pipe is provided with the flow guide ridges which are spirally arranged, and when fluid flows through the connecting pipe, wall-attached rotational flow is formed under the flow guide effect of the flow guide ridges, so that the condition that the fluid directly impacts on the buffer plate to cause the buffer plate to vibrate is reduced; on the other hand, the effect of reducing noise generated when the fluid flows is also achieved.

Drawings

FIG. 1 is a schematic view of a vibration-damping pressure gauge according to an embodiment of the present disclosure.

Fig. 2 is a sectional view of the vibration reduction type pressure gauge according to the embodiment of the present application.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Reference numerals: 1. a pressure gauge body; 11. a housing; 12. a spring tube; 13. a dial plate; 14. a movement; 15. a pointer; 2. an anti-vibration pipe fitting; 21. fixing the tube; 22. a movable tube; 23. a connecting pipe; 3. a pipeline; 4. a connecting assembly; 41. a first connecting ring; 42. a second connection ring; 43. a telescopic connecting ring; 5. a buffer assembly; 51. an outer ring spring; 52. an inner ring spring; 6. a buffer chamber; 7. a spoiler assembly; 71. a fixed shaft; 72. a spoiler wheel; 721. a spoiler; 722. a rotating wheel; 8. a buffer air bag; 9. a buffer solution; 10. an overflow channel; 16. a diaphragm; 17. a hydraulic chamber; 18. hydraulic oil; 19. a buffer plate; 191. an overflowing hole; 20. an accommodating chamber; 21. flow guiding ridges; 22. a turbulent flow interval.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses anti vibration type manometer that shimmys.

Referring to fig. 1, the anti-vibration and vibration-reduction pressure gauge comprises a pressure gauge body 1, wherein an anti-vibration pipe 2 is communicated with the pressure gauge body 1, and one end, far away from the pressure gauge body 1, of the anti-vibration pipe 2 is connected with a pipeline 3 for conveying fluid.

Referring to fig. 1 and 2, in particular, an anti-vibration pipe 2 is connected to a case 11 of a pressure gauge body 1. The anti-vibration pipe fitting 2 comprises a fixing pipe 21, the fixing pipe 21 is welded on the shell 11 of the pressure gauge body 1 and communicated with the shell 11, a diaphragm 16 is arranged in the fixing pipe 21, a hydraulic cavity 17 is formed by enclosing the diaphragm 16, the fixing pipe 21 and the spring pipe 12 of the pressure gauge body 1, and hydraulic oil 18 is sealed in the hydraulic cavity 17. In the embodiment of the present application, the bourdon tube 12 of the pressure gauge body 1 is a commercially available bourdon tube having a flat cross section, one end of the bourdon tube 12 is open and connected to the fixed tube 21, and the other end is closed and connected to the movement 14 of the pressure gauge body 1.

Referring to fig. 2, in the pressure measuring process, the fluid gushes into the fixed pipe 21 and is influenced by the pressure of the fluid, the diaphragm 16 protrudes towards the opening end of the spring pipe 12, the internal space of the hydraulic cavity 17 is reduced, the compression pressure of the hydraulic oil 18 is increased, so that the pressure in the spring pipe 12 is increased, the spring pipe 12 gradually expands to be circular under the action of the pressure, at the moment, the spring pipe 12 and the fixed end of the movement 14 are displaced, the movement 14 is driven to rotate, and then the pointer 15 installed on the movement 14 is driven to rotate, and the corresponding pressure value is indicated on the dial 13 of the pressure gauge body 1, so that the pressure measuring work is completed.

Referring to fig. 2, in the embodiment of the present application, the diaphragm 16 is disposed in the fixed tube 21 to block the fluid in the pipe 3, so as to reduce the fluid from entering into the interior of the bourdon tube 12, which may cause the interior of the bourdon tube 12 to be blocked, thereby affecting the normal pressure measurement operation of the pressure gauge.

In addition, hydraulic oil 18 is packaged in the hydraulic cavity 17, and the hydraulic oil 18 plays a role in lubrication, so that the service life of the pressure gauge is prolonged to a certain extent.

Referring to fig. 2, the side wall of the fixed pipe 21 is sleeved with a movable pipe 22, the movable pipe 22 is connected with the fixed pipe 21 through a connecting assembly 4, one end of the movable pipe 22, which is opposite to the shell 11, is communicated with a connecting pipe 23, the connecting pipe 23 is perpendicular to the movable pipe 22, two ends of the connecting pipe 23 are respectively provided with a flange, and the connecting pipe 23 is in flange connection with the pipeline 3. In the embodiment of the present application, the fixed pipe 21, the movable pipe 22, and the connection pipe 23 constitute the anti-vibration pipe member 2 in the above description.

Referring to fig. 2, the connecting assembly 4 includes a first connecting ring 41, a second connecting ring 42, and a pair of telescopic connecting rings 43. Specifically, the first connection ring 41 is integrally formed on the side wall of the fixed pipe 21, and the second connection ring 42 is integrally formed on the inner wall of the movable pipe 22, wherein the first connection ring 41 is located at one end of the fixed pipe 21 away from the housing 11, and the second connection ring 42 is located at one end of the movable pipe 22 close to the housing 11.

In the embodiment of the present application, the pair of telescopic connection rings 43 are made of rubber, one of the telescopic connection rings 43 connects the first connection ring 41 and the inner wall of the movable tube 22 by using a vulcanization process, and the other telescopic connection ring 43 connects the second connection ring 42 and the side wall of the fixed tube 21 by using a vulcanization process, thereby completing the flexible connection between the fixed tube 21 and the movable tube 22.

Referring to fig. 1 and 2, therefore, when the pipeline 3 vibrates, the vibration is firstly transmitted to the movable tube 22 through the connecting tube 23, and since the fixed tube 21 and the movable tube 22 are in flexible connection, when the movable tube 22 vibrates, the vibration is firstly transmitted to the telescopic connecting rings 43, the telescopic connecting rings 43 are deformed under the influence of the vibration, and then are restored, and the process is repeated, the vibration energy is continuously consumed in the process, the vibration is weakened, the fixed tube 21 is not easily influenced by the vibration to shake, and the phenomenon that the pointer 15 shakes due to the vibration of the pipeline 3 is reduced, so that the accuracy of pressure measurement is affected is reduced.

Referring to fig. 2, a buffer chamber 6 is defined by the inner wall of the movable tube 22, the outer wall of the fixed tube 21, the first connection ring 41, the second connection ring 42 and the telescopic connection ring 43, and a buffer assembly 5 is disposed in the buffer chamber 6 to reduce the relative displacement between the movable tube 22 and the fixed tube 21.

The buffer assembly 5 includes an outer ring spring 51 and an inner ring spring 52, one end of the outer ring spring 51 is welded on the first connection ring 41, the other end is welded on the second connection ring 42, one end of the inner ring spring 52 is welded on the first connection ring 41, the other end is welded on the second connection ring 42, the outer ring spring 51 and the inner ring spring 52 are both sleeved on the sidewall of the fixed pipe 21, and the inner ring spring 52 is located between the outer ring spring 51 and the fixed pipe 21.

Referring to fig. 2, in the embodiment of the present application, one of the outer ring spring 51 and the inner ring spring 52 is a compression spring, and the other is a tension spring. Specifically, when the outer ring spring 51 is a compression spring, the inner ring spring 52 is a tension spring; when the inner ring spring 52 is a tension spring, the outer ring spring 51 is a compression spring, and the outer ring spring 51 and the inner ring spring 52 are used in cooperation, so that opposite forces are always applied to the fixed pipe 21 and the movable pipe 22, and the vibration energy is consumed through continuous stretching and compression, so that the purpose of reducing the vibration frequency of the fixed pipe 21 is achieved.

Referring to fig. 2, a housing chamber 20 is formed between an outer ring spring 51 and an inner ring spring 52, and in order to reduce the expansion and contraction widths of the outer ring spring 51 and the inner ring spring 52, a buffer air bag 8 is provided in the housing chamber 20, and a buffer liquid 9 is sealed in the buffer air bag 8.

In the embodiment of the present application, the buffer solution 9 is a non-newtonian fluid, and the buffer air bag 8 fills up the gap between the accommodating cavity 20 and the outer ring spring 51 and the inner ring spring 52, so that the outer ring spring 51 and the inner ring spring 52 continuously extrude the buffer air bag 8 in the stretching process, and the stretching and shrinking of the outer ring spring 51 and the inner ring spring 52 are also limited while the vibration energy is consumed, thereby reducing the vibration amplitude of the fixing tube 21.

Referring to fig. 1, in order to further reduce the influence of the vibration of the pipeline 3 on the rotation of the pointer 15, a damping fluid is sealed in the housing 11, and in the embodiment of the present application, the damping fluid is a silicone oil commonly available on the market. At casing 11 internal packaging damping liquid for the resistance increase that pointer 15 received when casing 11 internal rotation, the pointer 15 receives damping liquid resistance during the swing and acts on, and slew velocity slows down, so pointer 15 is more stable, has played the effect that reduces pointer 15 and quiver, has made things convenient for the operator to carry out the reading to the manometer, has promoted measurement accuracy. In addition, the damping liquid soaks the pointer 15 and the movement 14, so that the lubricating effect is achieved, and the service life of the pressure gauge is prolonged.

Referring to fig. 2, the fixed pipe 21 and the connecting pipe 23 together form the flow channel 10 for fluid to pass through, in order to reduce the situation that the instantaneous fluctuation of the fluid in the pipeline 3 causes surge in the flow channel 10, so that the pointer 15 rotates rapidly and even exceeds the maximum range of the pressure gauge, and damages are caused to the pointer 15 and the movement 14, a plurality of flow buffers 19 are arranged in the connecting pipe 23 at intervals to reduce the influence of the instantaneous pressure change in the pipeline 3 caused by the fluctuation of the fluid flow speed in the pipeline 3 on the pressure measurement of the pressure gauge.

Referring to fig. 2 and 3, in the embodiment of the present application, three baffles 19 are provided at intervals, and all three baffles 19 are installed on one side of the connecting pipe 23 close to the inlet end. The flow-retarding plates 19 are provided with flow-passing holes 191 for passing through the fluid, the flow-passing holes 191 of two adjacent flow-retarding plates 19 are arranged alternately, when the fluid flows through the three flow-retarding plates 19, a part of the fluid is intercepted by the flow-retarding plates 19, and the rest of the fluid continues to flow through the flow-passing holes 191.

Since the aperture of the overflowing hole 191 is constant, even if a surge occurs in the pipe 3 to cause a sudden pressure rise in the pipe 3, the surge hardly affects the swing of the pointer 15 by the intercepting action of the three-layer baffle plate 19.

Referring to fig. 2 and 3, further, a spoiler assembly 7 is disposed on the flow slowing plate 19 at the position of the through hole 191, the spoiler assembly 7 includes a fixing shaft 71 welded to the flow slowing plate 19, and a spoiler wheel 72 is mounted on the fixing shaft 71.

Specifically, the spoiler wheel 72 includes a rotating wheel 722 rotatably mounted on the fixed shaft 71, a plurality of spoilers 721 are integrally formed on the rotating wheel 722, and the spoilers 721 are uniformly distributed along the circumferential direction of the rotating wheel 722. The turbulent flow section 22 is formed between any two adjacent turbulent flow plates 721 and the rotating wheel 722, when fluid flows through the flow hole 191, the fluid flows into the turbulent flow section 22, under the action of fluid impact, the turbulent flow wheel 72 rapidly rotates to convey the fluid to the outlet end of the connecting pipe 23, the fluid is disturbed and broken at the same time, and high-pressure fluid flow is not easily formed when the fluid flows through the flow hole 191, so that the change of the water pressure in the connecting pipe 23 tends to be smooth, and the surge phenomenon is not easily generated.

Referring to fig. 2, in addition, a flow guiding ridge 21 is arranged in the connecting pipe 23, the flow guiding ridge 21 is spirally arranged on the inner wall of the connecting pipe 23, and the flow guiding ridge 21 and the slow flow plate 19 are arranged at intervals. When fluid flows in the connecting pipe 23, under the flow guiding effect of the flow guiding ridge 21, a wall attaching rotational flow is formed, so that the condition that the fluid quickly impacts the buffer flow plate 19 to cause vibration of the buffer flow plate 19 and the connecting pipe 23 due to surging of the fluid in the pipeline 3 and the connecting pipe 23 caused by flow speed change is reduced; on the other hand, the fluid flows while rotating while adhering to the inner wall of the connection pipe 23, thereby achieving an effect of reducing noise generated when the fluid flows.

The implementation principle of anti vibration type of subtracting quivering manometer of the embodiment of this application does: fluid gushes into fixed pipe 21, influenced by fluid pressure, diaphragm 16 is protruding towards the open end direction of spring pipe 12, hydraulic pressure chamber 17 inner space reduces, hydraulic oil 18 compression leads to the increase of hydraulic pressure chamber 17 internal pressure, make spring pipe 12 internal pressure increase, under the pressure effect, spring pipe 12 expands gradually and becomes circular, spring pipe 12 takes place the displacement with the fixed one end of core 14 this moment, drive core 14 rotates, and then drive the pointer 15 of installing on core 14 and rotate, indicate the pressure value on dial plate 13, accomplish the pressure measurement work.

The anti-vibration pipe fitting 2 is arranged on the shell 11, when pressure is measured, fluid flows into the anti-vibration pipe fitting 2, impact force generated when the fluid flows is weakened by the anti-vibration pipe fitting 2, instantaneous impact force applied to the spring pipe 12 by the fluid flowing is reduced, pressure in the spring pipe 12 changes gently, the condition that the pointer 15 vibrates due to instantaneous change of fluid flow velocity is reduced, reading of an operator is facilitated, and measuring accuracy is improved.

The above preferred embodiments of the present application do not limit the scope of the present application, and therefore: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides an anti vibration type manometer that quivers, includes manometer body (1), its characterized in that: the pressure gauge is characterized in that an anti-vibration pipe fitting (2) is arranged on a shell (11) of the pressure gauge body (1), one end of a spring pipe (12) of the pressure gauge body (1) is connected with a core (14) of the pressure gauge body (1), the other end of the spring pipe (12) is connected with the anti-vibration pipe fitting (2), and the anti-vibration pipe fitting (2) is fixed on a pipeline (3) for conveying fluid.

2. An anti-chatter pressure gauge in accordance with claim 1, wherein: the anti-vibration pipe fitting (2) comprises a fixed pipe (21), a movable pipe (22) and a connecting pipe (23), the fixed pipe (21) is fixed on the shell (11), the movable pipe (22) is sleeved on the fixed pipe (21), the fixed pipe (21) is connected with the movable pipe (22) through a connecting assembly (4), the connecting pipe (23) is communicated with the movable pipe (22), and the connecting pipe (23) is in flange connection with a pipeline (3) for conveying fluid;

the utility model discloses a vibration damping device, including activity pipe (22) with form cushion chamber (6) between fixed pipe (21), be equipped with buffering subassembly (5) in cushion chamber (6), buffering subassembly (5) are used for the buffering activity pipe (22) to the vibration of fixed pipe (21) transmission.

3. An anti-chatter pressure gauge in accordance with claim 2, wherein: coupling assembling (4) include first go-between (41), second go-between (42) and a pair of flexible go-between (43), first go-between (41) cup joint and are fixed in on the lateral wall of fixed pipe (21), second go-between (42) are fixed in activity pipe (22) are kept away from on the inner wall of first go-between (41) one end, one of them flexible go-between (43) are connected first go-between (41) with activity pipe (22), another flexible go-between (43) are connected second go-between (42) with fixed pipe (21).

4. An anti-chatter pressure gauge in accordance with claim 3, wherein: the buffer assembly (5) comprises an outer ring spring (51) and an inner ring spring (52), the outer ring spring (51) and the inner ring spring (52) are sleeved on the side wall of the fixed pipe (21), and the outer ring spring (51) is positioned between the inner ring spring (52) and the movable pipe (22);

one end of the outer ring spring (51) is connected with the first connecting ring (41), the other end of the outer ring spring is connected with the second connecting ring (42), one end of the inner ring spring (52) is connected with the first connecting ring (41), and the other end of the inner ring spring (52) is connected with the second connecting ring (42).

5. An anti-chatter pressure gauge according to claim 4, further comprising: an accommodating cavity (20) is formed between the inner ring spring (52) and the outer ring spring (51), a buffering air bag (8) is arranged in the accommodating cavity (20), and a buffering liquid (9) is packaged in the buffering air bag (8).

6. An anti-chatter pressure gauge in accordance with claim 2, wherein: connecting pipe (23) with form in the fixed pipe (21) jointly and overflow passageway (10), overflow passageway (10) will spring pipe (12) and pipeline (3) the intercommunication that is used for fluid delivery, be equipped with diaphragm (16) in overflowing passageway (10), diaphragm (16) are fixed on the inner wall of fixed pipe (21), diaphragm (16) spring pipe (12) with form hydraulic pressure chamber (17) between fixed pipe (21), hydraulic pressure chamber (17) internal seal is equipped with hydraulic oil (18).

7. An anti-chatter pressure gauge in accordance with claim 2, wherein: a plurality of buffer plates (19) are arranged in the connecting pipe (23) at intervals, the buffer plates (19) are arranged along the extending direction of the connecting pipe (23), overflowing holes (191) penetrate through the buffer plates (19), and the overflowing holes (191) in two adjacent buffer plates (19) are arranged in a staggered mode.

8. An anti-chatter pressure gauge in accordance with claim 7, wherein: on the current slowing board (19) in cross discharge orifice (191) department and be equipped with vortex subassembly (7), vortex subassembly (7) are including fixed axle (71), fixed axle (71) are fixed on current slowing board (19), install vortex wheel (72) on fixed axle (71), vortex wheel (72) are located cross in discharge orifice (191).

9. An anti-chatter pressure gauge in accordance with claim 2, wherein: the inner wall of the connecting pipe (23) is provided with a flow guide ridge (21), and the flow guide ridge (21) is spiral and is arranged along the extending direction of the connecting pipe (23).

10. An anti-chatter pressure gauge in accordance with claim 1, wherein: damping liquid is packaged in the shell (11) and overflows the top end of a pointer (15) of the pressure gauge body (1).

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