CN113865779A

CN113865779A - Adjustable differential pressure gauge

Info

Publication number: CN113865779A
Application number: CN202111135378.9A
Authority: CN
Inventors: 张雷; 庞浩; 罗智晟
Original assignee: Hudong Heavy Machinery Co Ltd
Current assignee: Hudong Heavy Machinery Co Ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2021-12-31

Abstract

The invention discloses an adjustable differential pressure gauge, which relates to the technical field of differential pressure gauges for industrial manufacturing, and particularly relates to an adjustable differential pressure gauge. This adjustable differential pressure gauge, through rotating adjusting gear, and rotate through supplementary regulation rack, can drive the scale and remove in U type differential pressure gauge inside, can adjust the relative position of scale and U type differential pressure gauge according to the actual conditions at scene, water zero-position in the U type differential pressure gauge of accurate positioning, and then increased the controllability of U type differential pressure gauge, the reading of being convenient for has improved the precision that detects, when the scale removes simultaneously, restrict the scale through two spacing knobs, stability when having improved the scale and removing.

Description

Adjustable differential pressure gauge

Technical Field

The invention relates to the technical field of differential pressure meters for industrial manufacturing, in particular to an adjustable differential pressure meter.

Background

The U-shaped water column differential pressure gauge is the most common pressure measuring instrument at present, and utilizes the fluid mechanics principle to convert pressure signals into height difference of water column, and utilizes the static pressure produced by water column with a certain height to balance the measured pressure method to measure positive pressure, differential pressure and negative pressure vacuum degree. The U-shaped water column differential pressure gauge has simple structure, low price and convenient use, so the U-shaped water column differential pressure gauge is widely applied to industrial production. The use principle of the U-shaped water column differential pressure gauge is as follows: before the U-shaped differential pressure gauge is not communicated with the pressure measuring point, the liquid levels on the two sides in the U-shaped glass tube are level at the zero scale mark. When one end of the U-shaped pipe is communicated with the pressure measuring point, the liquid level in the U-shaped pipe changes. If the liquid level on the side communicated with the pressure measuring point is lowered, the pressure at the pressure measuring point is positive pressure, otherwise, the pressure is negative pressure. According to different working principles, the device can be divided into 3 forms of a liquid column type, an elastic type and a sensor type.

In the field of industrial manufacturing, differential pressure meters are indispensable parts, and various differential pressure meters are indispensable parts in machine equipment. However, the existing differential pressure gauge is easy to have excessive or insufficient water amount, is easy to have inaccurate zero position, is inconvenient to repair and install and is easy to have scrapped phenomenon, and in summary, the differential pressure gauge used in the existing industrial manufacturing and installation mainly has the following problems: the scale of the differential pressure gauge is fixed and is not easy to adjust; the water quantity in the differential pressure gauge is not easy to adjust and is easy to be in an excessive or insufficient state;

the adjustable differential pressure gauge is not easy to disassemble and assemble when water is added and the differential pressure gauge is disassembled and inspected, and is easy to damage and leak air, so that the problem is solved.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an adjustable differential pressure gauge, which solves the problems that the existing differential pressure gauge is easy to cause inaccuracy, inconvenient in repair and installation operation and easy to scrap, and fundamentally solves the problems that the existing differential pressure gauge needs to be disassembled, inspected and added with water inconveniently, a scale is difficult to adjust and the service life is shortened.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an adjustable differential pressure gauge, includes the mount pad, the top fixed mounting of mount pad has put spacing island in, and the outside joint of putting spacing island in has U type differential pressure gauge, the top threaded connection who puts spacing island in has two spacing knobs, the top of putting spacing island in has the scale through spacing knob joint, the top movable mounting who puts spacing island in has adjusting gear, the inside fixed mounting of scale has the supplementary adjusting rack of mutually supporting with adjusting gear, the one end fixed mounting of mount pad has tip splint, the inside movable mounting of mount pad has adjusting screw, and adjusting screw's outside threaded connection has two side splint, the side of U type differential pressure gauge is provided with into water connecting valve, drainage connecting valve, the one end that tip splint were kept away from to U type differential pressure gauge is provided with both sides work connecting valve.

Preferably, the scale marks which are uniformly distributed are arranged at the top of the scale, and the positioning grooves which are matched with the limiting knob, the adjusting gear and the auxiliary adjusting rack are arranged at the top of the scale.

Preferably, the auxiliary adjusting rack is fixedly installed on the side face of the middle positioning groove, the auxiliary adjusting rack and the adjusting gear are located at the same height, and the outer edge of the adjusting gear is meshed with the auxiliary adjusting rack.

Preferably, the two limit knobs are distributed on two sides of the adjusting gear in a mirror image mode, and limit bearings matched with the scales are movably sleeved outside the limit knobs.

Preferably, the bottom of mount pad is seted up with adjusting screw mutually supported's mounting groove, adjusting screw's middle part movable mounting has the centre block, and centre block and mount pad fixed connection, both sides are seted up around the adjusting screw outside and are mutually supported and each other be the screw thread of derotation with two side splint.

Preferably, two side splint mirror image distribution are in adjusting screw's front and back both sides, the medial surface fixed mounting of side splint has the guide bar, and guide bar and mount pad swing joint.

Preferably, the water inlet connecting valve and the water discharge connecting valve are respectively positioned on the left side and the right side of the side face of the U-shaped differential pressure gauge, and the water inlet connecting valve and the water discharge connecting valve are both in threaded connection with the U-shaped differential pressure gauge.

The invention provides an adjustable differential pressure meter, which has the following beneficial effects:

1. this adjustable differential pressure gauge, through rotating adjusting gear, and rotate through supplementary regulation rack, can drive the scale and remove in U type differential pressure gauge inside, can adjust the relative position of scale and U type differential pressure gauge according to the actual conditions at scene, water zero-position in the U type differential pressure gauge of accurate positioning, and then increased the controllability of U type differential pressure gauge, the reading of being convenient for has improved the precision that detects, when the scale removes simultaneously, restrict the scale through two spacing knobs, stability when having improved the scale and removing.

2. This adjustable differential pressure gauge sets up the water inlet connection valve through the outside at U type differential pressure gauge, the drainage connection valve, the accessible water inlet connection valve, the drainage connection valve adds or reduces the inside water yield of U type differential pressure gauge, guarantee the rationality of the inside water yield of U type differential pressure gauge, install water inlet connection valve, drainage connection valve additional in the side of U type differential pressure gauge simultaneously, can directly open water inlet connection valve, the drainage connection valve is adjusted the water yield, the operation degree of difficulty has been reduced.

3. This adjustable differential pressure gauge drives outside two side splint and removes to the outside simultaneously through rotating adjusting screw, removes the restriction to U type differential pressure gauge, is convenient for dismantle the maintenance to U type differential pressure gauge, prevents that U type differential pressure gauge from damaging when dismantling, restricts U type differential pressure gauge through putting spacing island, tip splint and multiunit side splint and mutually supporting simultaneously, has guaranteed the stability after U type differential pressure gauge installation.

Drawings

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

FIG. 2 is a schematic structural view of the top of the built-in limiting island of the present invention;

FIG. 3 is a schematic structural view of the bottom of the mounting base of the present invention;

FIG. 4 is a schematic view of the exterior of the adjusting screw of the present invention;

FIG. 5 is a schematic view of the structure of the scale of the present invention;

FIG. 6 is a schematic view of the stop knob according to the present invention.

In the figure: 1. a mounting seat; 2. a U-shaped differential pressure gauge; 3. a limiting island is arranged in the middle; 4. a scale; 5. scale lines; 6. a limit knob; 7. an adjusting gear; 8. auxiliary adjusting racks; 9. an end clamp plate; 10. side clamping plates; 11. adjusting the screw rod; 12. a center block; 13. a limit bearing; 14. a working connection valve; 15. a water inlet connection valve; 16. a drain connection valve; 17. and (6) positioning a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, the present invention provides a technical solution: an adjustable differential pressure gauge comprises a mounting seat 1, a middle limiting island 3 is fixedly mounted at the top of the mounting seat 1, a U-shaped differential pressure gauge 2 is clamped outside the middle limiting island 3, two limiting knobs 6 are in threaded connection with the top of the middle limiting island 3, a scale 4 is clamped at the top of the middle limiting island 3 through the limiting knobs 6, an adjusting gear 7 is movably mounted at the top of the middle limiting island 3, an auxiliary adjusting rack 8 matched with the adjusting gear 7 is fixedly mounted inside the scale 4, an end clamping plate 9 is fixedly mounted at one end of the mounting seat 1, an adjusting screw 11 is movably mounted inside the mounting seat 1, two side clamping plates 10 are in threaded connection with the outside of the adjusting screw 11, a water inlet connecting valve 15 and a water outlet connecting valve 16 are arranged on the side of the U-shaped differential pressure gauge 2, two side working connecting valves 14 are arranged at one end of the U-shaped differential pressure gauge 2 far away from the end clamping plate 9, intake connecting valve 15, drainage connecting valve 16 is located the left and right sides of U type differential pressure gauge 2 side respectively, intake connecting valve 15, drainage connecting valve 16 all with U type differential pressure gauge 2 threaded connection, through set up intake connecting valve 15 in the outside of U type differential pressure gauge 2, drainage connecting valve 16, accessible intake connecting valve 15, drainage connecting valve 16 adds or reduces the inside water yield of U type differential pressure gauge 2, guarantee the rationality of the inside water yield of U type differential pressure gauge 2, install intake connecting valve 15 additional in the side of U type differential pressure gauge 2 simultaneously, drainage connecting valve 16, can directly open intake connecting valve 15, drainage connecting valve 16 adjusts the water yield, the operation degree of difficulty has been reduced, and intake connecting valve 15, drainage connecting valve 16 adopts the screw thread to be connected with U type differential pressure gauge 2, be convenient for install and dismantle.

Referring to fig. 2 and 5, the scale marks 5 are uniformly distributed on the top of the scale 4, the top of the scale 4 is provided with a positioning groove 17 matched with the limit knob 6, the adjusting gear 7 and the auxiliary adjusting rack 8, the positioning groove 17 is arranged on the top of the scale 4, when the scale 4 is installed, the scale 4 is clamped outside the limit knob 6 through the positioning groove 17, the scale 4 is limited through the limit knob 6, the stability of the scale 4 during movement is ensured, the scale 4 is prevented from falling off, meanwhile, the installation position of the auxiliary adjusting rack 8 is reserved, the stable matching between the auxiliary adjusting rack 8 and the adjusting gear 7 is ensured, the auxiliary adjusting rack 8 is fixedly installed on the side surface of the middle positioning groove 17, the auxiliary adjusting rack 8 and the adjusting gear 7 are at the same height, the outer edge of the adjusting gear 7 is meshed with the auxiliary adjusting rack 8, and the adjusting gear 7 is rotated, and through the transmission of auxiliary adjusting rack 8, can drive auxiliary adjusting rack 8, scale 4 and remove, can adjust the relative position of scale 4 and U type differential pressure gauge 2 according to the actual conditions in scene, accurate positioning U type differential pressure gauge 2 normal water zero position, and then increased U type differential pressure gauge 2's adjustability, the reading of being convenient for has improved the precision that detects.

Please refer to fig. 6, two limit knobs 6 are mirror-distributed on two sides of the adjusting gear 7, the limit bearings 13 matched with the scale 4 are movably sleeved outside the limit knobs 6, and the limit bearings 13 are additionally arranged outside the limit knobs 6, so that the friction force between the limit knobs 6 and the scale 4 is reduced, the damage probability of the scale 4 is reduced, and the service life of the scale 4 is prolonged while the limit knobs 6 can limit the position of the scale 4.

Please refer to fig. 3, the bottom of the mounting seat 1 is provided with a mounting groove mutually matched with the adjusting screw 11, the middle part of the adjusting screw 11 is movably provided with a center block 12, the center block 12 is fixedly connected with the mounting seat 1, the position of the adjusting screw 11 is limited by the center block 12, it is ensured that the adjusting screw 11 can stably rotate, the probability of failure after the device is used is reduced, the front side and the rear side of the outside of the adjusting screw 11 are provided with threads mutually matched with the two side clamping plates 10 and mutually counter-rotating, it is ensured that when the adjusting screw 11 is rotated, the two side clamping plates 10 can be driven to simultaneously move towards the inner side or the outer side, the clamping or releasing of the U-shaped differential pressure gauge 2 through the side clamping plates 10 is realized, and the U-shaped differential pressure gauge 2 is convenient to be detached.

Referring to fig. 4, two side clamping plates 10 are arranged on the front and rear sides of the adjusting screw 11 in a mirror image manner, guide rods are fixedly arranged on the inner side surfaces of the side clamping plates 10 and movably connected with the mounting base 1, when the adjusting screw 11 rotates to drive the side clamping plates 10 to move, the moving direction of the side clamping plates 10 is limited through the guide rods, the stability of the side clamping plates 10 during moving is improved, and the U-shaped differential pressure gauge 2 can be stably clamped through the side clamping plates 10.

To sum up, when the adjustable differential pressure gauge is used, the device is assembled according to a diagram, the device is integrally installed at a working position through the installation seat 1, the rotary adjusting gear 7 rotates and is matched with the auxiliary adjusting rack 8 to drive the scale 4 to move in the U-shaped differential pressure gauge 2, meanwhile, when the scale 4 moves, the moving direction of the scale 4 is limited through the two groups of limit knobs 6, the relative position of the scale 4 and the U-shaped differential pressure gauge 2 is adjusted, so that the water zero position in the U-shaped differential pressure gauge 2 is accurately positioned, two working connection valves 14 at one end of the U-shaped differential pressure gauge 2 are communicated with a measured device, measurement can be carried out, when the water amount in the U-shaped differential pressure gauge 2 is large, the drainage connection valve 16 is opened to discharge excessive water out of the U-shaped differential pressure gauge 2, and when the water amount in the U-shaped differential pressure gauge 2 is small, the water inlet connection valve 15 can be opened, add into U type differential pressure meter 2 with water inside, the accessible is intake connecting valve 15, drainage connecting valve 16 freely adjusts the inside water yield of U type differential pressure meter 2, guarantee the rationality of the inside water yield of U type differential pressure meter 2, when needs are overhauld U type differential pressure meter 2 dismantlement, rotation adjusting screw 11 drives outside two side splint 10 and moves to the outside simultaneously, remove the restriction to U type differential pressure meter 2, take out U type differential pressure meter 2 along 1 top of mount pad and overhaul, can.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An adjustable differential pressure gauge, includes mount pad (1), its characterized in that: the device is characterized in that a middle limiting island (3) is fixedly mounted at the top of the mounting seat (1), a U-shaped differential pressure gauge (2) is clamped outside the middle limiting island (3), two limiting knobs (6) are connected to the top of the middle limiting island (3) in a threaded manner, a scale (4) is clamped at the top of the middle limiting island (3) through the limiting knobs (6), an adjusting gear (7) is movably mounted at the top of the middle limiting island (3), an auxiliary adjusting rack (8) matched with the adjusting gear (7) is fixedly mounted inside the scale (4), a tip clamping plate (9) is fixedly mounted at one end of the mounting seat (1), an adjusting screw (11) is movably mounted inside the mounting seat (1), the outer threads of the adjusting screw (11) are connected with two side clamping plates (10), and a water inlet connecting valve (15) is arranged on the side of the U-shaped differential pressure gauge (2), And one end of the U-shaped differential pressure gauge (2) far away from the end clamping plate (9) is provided with two-side working connecting valves (14).

2. The adjustable differential pressure gauge of claim 1, wherein: evenly distributed scale marks (5) are seted up at the top of scale (4), constant head tank (17) of mutually supporting with limit knob (6), adjusting gear (7), supplementary regulation rack (8) are seted up at the top of scale (4).

3. The adjustable differential pressure gauge of claim 2, wherein: the auxiliary adjusting rack (8) is fixedly arranged on the side face of the middle positioning groove (17), the auxiliary adjusting rack (8) and the adjusting gear (7) are located at the same height, and the outer edge of the adjusting gear (7) is meshed with the auxiliary adjusting rack (8).

4. The adjustable differential pressure gauge of claim 1, wherein: two limit knob (6) mirror image distribution is in the both sides of adjusting gear (7), the outside movable sleeve of limit knob (6) is equipped with limit bearing (13) of mutually supporting with scale (4).

5. The adjustable differential pressure gauge of claim 1, wherein: the mounting groove of mutually supporting with adjusting screw (11) is seted up to the bottom of mount pad (1), the middle part movable mounting of adjusting screw (11) has center block (12), and center block (12) and mount pad (1) fixed connection, both sides are seted up around adjusting screw (11) outside and are mutually supported and each other are the anti-screw thread of turning round with two side splint (10).

6. The adjustable differential pressure gauge of claim 1, wherein: two side splint (10) mirror image distribute in adjusting screw (11) front and back both sides, the medial surface fixed mounting of side splint (10) has the guide bar, and guide bar and mount pad (1) swing joint.

7. The adjustable differential pressure gauge of claim 1, wherein: the water inlet connecting valve (15) and the water discharge connecting valve (16) are respectively located on the left side and the right side of the side face of the U-shaped differential pressure gauge (2), and the water inlet connecting valve (15) and the water discharge connecting valve (16) are both in threaded connection with the U-shaped differential pressure gauge (2).