CN209802585U

CN209802585U - Pressure gauge with buffer structure

Info

Publication number: CN209802585U
Application number: CN201920846818.3U
Authority: CN
Inventors: 张成功
Original assignee: Jiangsu Beite Instrument Technology Co Ltd
Current assignee: Jiangsu Beite Instrument Technology Co Ltd
Priority date: 2019-06-06
Filing date: 2019-06-06
Publication date: 2019-12-17
Anticipated expiration: 2029-06-06

Abstract

The utility model discloses a pressure gauge with a buffer structure, which belongs to the technical field of pressure gauge buffering, and comprises a pressure gauge body, the lower end of the pressure gauge body is fixedly connected with a joint, the side end of the joint is fixedly connected with a protective sleeve, the lower end of the joint is fixedly connected with a buffer conduit, a buffer mechanism is arranged in the protective sleeve, the lower end of the protective sleeve is fixedly connected with a metal hose, the lower end of the metal hose is fixedly connected with a buffer plate, a plurality of groups of damping springs are arranged in the metal hose, through the mutual cooperation of the buffer mechanism and a spiral conduit, fluid is fully slowed down in the protective sleeve, the impact force is reduced, the impact force instantly received by a pointer at the beginning of measurement is close to the static pressure stably received by measurement, the measurement efficiency is high, and the pressure gauge is protected at the same time, furthermore, when the damage happens, the buffering mechanism of the device is connected with the sniper through threads, so that the device is convenient to detach and clean and is very convenient and fast.

Description

Pressure gauge with buffer structure

Technical Field

The utility model relates to a manometer buffering technical field specifically is a manometer with buffer structure.

Background

Pressure gauges (pressure gauge) are instruments that measure and indicate pressures above ambient pressure, which are very common, using elastic elements as sensors, and are used in almost all fields of industrial processes and scientific research. The method is widely available in the fields of heating power pipe networks, oil and gas transmission, water and gas supply systems, vehicle maintenance plants and shops and the like. Especially in the industrial process control and technical measurement process, the mechanical pressure gauge is more and more widely applied due to the characteristics of high mechanical strength, convenient production and the like of the elastic sensitive element of the mechanical pressure gauge.

The pressure gauge transmits pressure deformation to the pointer through elastic deformation of sensitive elements (Bourdon tube, bellows and bellows) in the gauge and a conversion mechanism of a movement in the gauge, so that the pointer rotates to display the pressure. The pressure gauge consists of a connector, a spring tube and a core. The pressure gauge is mainly welded by lead-zinc welding, silver welding, argon arc welding, special welding and the like, and a clarinet of the instrument normally works for 10 ten thousand times. The working principle is that the spring tube deforms, and the machine core (the sector gear and the central gear work) drives the pointer to display the measured medium pressure on the scale of the panel.

Some fluid needing pressure measurement often are difficult to judge the upper limit of the pressure in advance, or the upper limit of the pressure is larger, and most of the existing pressure gauges are Bourdon tube pressure gauges, once overlarge pressure is touched, destructive influence can be caused on the Bourdon tube, especially in the moment of contacting the fluid, the fluid can often form impact force, the force is far greater than the force of static pressure, in the using process of the pressure gauge, the pointer can be deviated due to reasons such as instantaneous overpressure impact of a medium and the like, the detection accuracy and the service life of the pressure gauge are influenced, and along with long-term use of the pressure gauge, the pressure gauge also has the possibility of influence on the detection of the pressure gauge caused by impurity accumulation.

Based on this, the utility model designs a manometer with buffer structure to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a manometer with buffer structure, with the measurement fluid who needs pressure to some that propose in solving above-mentioned background art, often be difficult to judge the upper limit of pressure in advance, perhaps the upper limit of pressure is great, and present manometer, mostly be bourdon tube pressure gauge, in case bump too big pressure, can cause destructive influence to bourdon tube, especially contact fluid in the twinkling of an eye, often fluid can form the impact force, this kind of strength is greater than the strength of static pressure far away, in the manometer use, by the medium overpressure impact etc. reason probably lead to the pointer to take place the skew in the twinkling of an eye, influence the degree of accuracy and the life that the manometer detected, and along with the long-term use of manometer, there is still impurity in the manometer and piles up and influence the possible problem that the manometer detected.

In order to achieve the above object, the utility model provides a following technical scheme: a pressure gauge with a buffer structure comprises a pressure gauge body, wherein the pressure gauge body is provided with scales and a pointer, the lower end of the pressure gauge body is fixedly connected with a joint, the side end of the joint is fixedly connected with a protective sleeve, the lower end of the joint is fixedly connected with a buffer conduit, a buffer mechanism is arranged in the protective sleeve and comprises a fixed rod, the upper end of the fixed rod is fixedly connected with a baffle, the fixed rod is positioned at the lower end of the baffle and is fixedly connected with a filter plate, two groups of spiral fans are arranged at the bottom end of the fixed rod and are rotationally connected with the fixed rod through bearings, the lower end of the protective sleeve is fixedly connected with a metal hose, the lower end of the metal hose is fixedly connected with a buffer board, and a plurality of groups of damping springs are arranged in the metal hose, and two ends of each damping spring are respectively and fixedly connected to the lower end of the protective sleeve and the upper end of the buffer plate.

Preferably, two groups of supporting discs are arranged in the protective sleeve, and round holes identical to the cross section of the buffer guide pipe are formed in the middle end bundles of the two groups of supporting discs.

Preferably, the part of the buffer conduit between the two support discs is in a spiral structure.

Preferably, a plurality of groups of through holes which are uniformly distributed are formed in the baffle plate and the buffer plate.

Preferably, the inner wall of the protective sleeve, the baffle and the side end of the filter plate are all provided with threads, and the baffle and the filter plate are in threaded connection with the protective sleeve.

Preferably, the diameters of the baffle and the filter plate are equal to the inner diameter of the protective sleeve, and the diameters of the two groups of spiral fans are slightly smaller than the inner diameter of the protective sleeve.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a mutually supporting of buffer gear and spiral pipe makes the fluid carry out abundant slowing down in a protective sleeve, reduce the impulsive force, make the pointer begin to receive the impact force in the twinkling of an eye at the measurement be close to the static pressure that receives after measuring the stability, high measurement efficiency, protect the manometer simultaneously, and is further, this device still is equipped with the filter, but impurity in the filterable fluid prevents that it from getting into the manometer, damage in becoming, and, the buffer gear of this device is snipe through the screw thread even, convenient to detach washs, and is very convenient.

of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

Fig. 2 is a schematic structural view of the buffering mechanism in fig. 1 according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-pressure gauge body, 2-scale, 3-pointer, 4-joint, 5-protective sleeve, 6-buffer conduit, 7-buffer mechanism, 8-fixed rod, 9-baffle, 10-filter plate, 11-helical fan, 12-metal hose, 13-buffer plate, 14-damping spring, 15-supporting disk and 16-through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

referring to fig. 1-2, the present invention provides a technical solution: a pressure gauge with a buffer structure comprises a pressure gauge body 1, wherein scales 2 and a pointer 3 are arranged on the pressure gauge body 1, a joint 4 is fixedly connected to the lower end of the pressure gauge body 1, a protective sleeve 5 is fixedly connected to the side end of the joint 4, a buffer conduit 6 is fixedly connected to the lower end of the joint 4, a buffer mechanism 7 is arranged in the protective sleeve 5, the buffer mechanism 7 comprises a fixed rod 8, a baffle 9 is fixedly connected to the upper end of the fixed rod 8, a filter plate 10 is fixedly connected to the lower end, located at the baffle 9, of the fixed rod 8, two groups of spiral fans 11 are arranged at the bottom end of the fixed rod 8, the spiral fans 11 are rotatably connected with the fixed rod 8 through bearings, a metal hose 12 is fixedly connected to the lower end of the protective sleeve 5, a buffer plate 13 is fixedly connected, and two ends of the damping spring 14 are respectively and fixedly connected to the lower end of the protective sleeve 5 and the upper end of the buffer plate 13.

Wherein, be equipped with two sets of supporting disks 15 in the protective sleeve 5, the end bundle is seted up with the same round hole of 6 cross sections of buffer pipe in two sets of supporting disks 15 for fixed buffer pipe 6 prevents that buffer pipe 6 from taking place to rock at leading-in liquid in-process. The part of the buffer conduit 6 between the two groups of support discs 15 is of a spiral structure, so that the liquid inflow path can be prolonged, the damage caused by impact on the pressure gauge body 1 when the liquid pressure is too large is reduced, and the buffer effect is enhanced. The baffle 9 and the buffer plate 13 are provided with a plurality of groups of uniformly distributed through holes 16, the baffle 9 and the buffer plate 13 can stop liquid from instantly rushing into the pressure gauge body 1, and the liquid can enter the pressure gauge body 1 through the through holes 16 to protect the pressure gauge body 1. The side of the inner wall of the protective sleeve 5, the baffle 9 and the filter 10 is provided with threads, the baffle 9 and the filter 10 are in threaded connection with the protective sleeve 5, and the buffer mechanism 7 is convenient to install and detach and is very convenient. Baffle 9 and filter 10 diameter equal the inside diameter of protective sleeve 5, and two sets of helical fan 11 diameters slightly are less than the inside diameter of protective sleeve 5 for baffle 9 and filter 10 can seal protective sleeve 5 is inside, and helical fan 11 can rotate in protective sleeve 5 simultaneously, slow down the velocity of flow of liquid.

One specific application of this embodiment is: when the fluid protector is used, fluid firstly enters the interior of the protective sleeve 5 from the through hole 16 on the buffer plate 14 at the lower end, wherein the metal hose 12 at the lower end of the protective sleeve 5 is matched with the damping spring 13, so that the toughness of the lower end of the protective sleeve 5 can be enhanced, the protective sleeve 5 is prevented from being directly broken due to overlarge pressure of the fluid, the fluid can pass through the two groups of spiral fans 11 after entering the protective sleeve 5, and then the spiral fans 11 can be driven to rotate, so that the flow direction and the speed of the fluid can be effectively slowed down, further, the fluid can enter the filter plate 10 to be filtered, sand grains or magazines doped in the fluid are prevented from entering the pressure gauge body 1 to damage the pressure gauge body, meanwhile, the fluid enters the spiral conduit 6 through the through hole 16 on the baffle plate 9, the fluid can be further slowed down through the spiral structure, the pressure gauge body 1 is fully protected, and the impact force received by the pointer 3 at the, the measuring efficiency is high.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a manometer with buffer structure, includes manometer body (1), its characterized in that: the pressure gauge is characterized in that scales (2) and a pointer (3) are arranged on the pressure gauge body (1), the lower end of the pressure gauge body (1) is fixedly connected with a joint (4), the side end of the joint (4) is fixedly connected with a protective sleeve (5), the lower end of the joint (4) is fixedly connected with a buffer conduit (6), a buffer mechanism (7) is arranged in the protective sleeve (5), the buffer mechanism (7) comprises a fixed rod (8), the upper end of the fixed rod (8) is fixedly connected with a baffle (9), the fixed rod (8) is positioned at the lower end of the baffle (9) and fixedly connected with a filter plate (10), two groups of spiral fans (11) are arranged at the bottom end of the fixed rod (8), the spiral fans (11) are rotatably connected with the fixed rod (8) through bearings, a metal hose (12) is fixedly connected at the lower end of the protective, a plurality of groups of damping springs (14) are arranged in the metal hose (12), and two ends of each damping spring (14) are respectively and fixedly connected to the lower end of the protective sleeve (5) and the upper end of the buffer plate (13).

2. The pressure gauge with the buffer structure as claimed in claim 1, wherein: the protective sleeve is characterized in that two groups of supporting plates (15) are arranged in the protective sleeve (5), and round holes with the same cross section as the buffer guide pipe (6) are formed in the middle end bundles of the two groups of supporting plates (15).

3. The pressure gauge with the buffer structure as claimed in claim 2, wherein: the part of the buffer conduit (6) between the two groups of support discs (15) is of a spiral structure.

4. The pressure gauge with the buffer structure as claimed in claim 1, wherein: and a plurality of groups of through holes (16) which are uniformly distributed are formed in the baffle (9) and the buffer plate (13).

5. The pressure gauge with the buffer structure as claimed in claim 1, wherein: the protective sleeve is characterized in that threads are arranged on the inner wall of the protective sleeve (5), the baffle (9) and the side end of the filter plate (10), and the baffle (9) and the filter plate (10) are in threaded connection with the protective sleeve (5).

6. The pressure gauge with the buffer structure as claimed in claim 1, wherein: baffle (9) and filter (10) diameter equal to protective sleeve (5) inside diameter, two sets of helical fan (11) diameter slightly is less than protective sleeve (5) inside diameter.