CN210051408U

CN210051408U - Magnetic floating ball liquid level meter

Info

Publication number: CN210051408U
Application number: CN201920780195.4U
Authority: CN
Inventors: 胡英江
Original assignee: Changzhou Songying Liquid Mirror Co Ltd
Current assignee: Changzhou Songying Liquid Mirror Co Ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2020-02-11
Anticipated expiration: 2029-05-27

Abstract

The utility model discloses a magnetic floating ball liquid level meter, which comprises a shell, a floating ball, a connecting rod, a magnetic coupling component and a display module, wherein the connecting rod is L-shaped, the longer section of the connecting rod and the magnetic coupling component are both positioned inside the shell, the side of the shell, which is far away from the shorter section of the connecting rod, is fixedly connected with the display module, and the shorter end of the connecting rod is fixedly connected with the floating ball; the magnetic coupling assembly comprises a first magnet fixedly connected with the connecting rod, a sealing ring fixedly connected with the shell and a second magnet rotatably connected with the sealing ring; the display module comprises a transparent observation cover fixedly connected with the shell, an instrument panel positioned inside the observation cover and an inverted U-shaped pointer, the second magnet is positioned inside the instrument panel, the pointer sleeve is arranged on the instrument panel, one end of the pointer is fixedly connected with the second magnet, and a shielding protective cover is arranged on the outer side of the display module. The utility model discloses have the influence of shielding external magnetic field to the normal work of magnetic coupling subassembly to and it is damaged to avoid transparent observation cover to receive external force, reduce life's effect.

Description

Magnetic floating ball liquid level meter

Technical Field

The utility model belongs to the technical field of the technique of liquid level detection equipment and specifically relates to a magnetism floats ball level gauge is related to.

Background

The magnetic float ball level meter is used for level detection of liquid medium in various pressure bearing (or open) liquid storage equipment (tower, cylinder, tank, spherical container, boiler, etc.) in industrial process, can display working condition and level height of various liquids in situ, can transmit position signal of liquid level remotely by matching with level transducer, and can achieve the purpose of automatic control and liquid level measurement by means of certain electric device.

When the liquid level in the measured container rises and falls, the floater in the main conduit of the liquid level meter also rises and falls, the permanent magnetic steel in the floater is transmitted to the field indicator through magnetic coupling to drive the red and white turning columns to turn over by 180 degrees, when the liquid level rises, the turning columns turn from white to red, when the liquid level falls, the turning columns turn from red to white, and the red and white boundary positions of the indicator are the actual height of the medium liquid level in the container, so that the indication of the liquid level is realized.

The above prior art solutions have the following drawbacks: in the actual use process, due to the limitation of the self structure of the transparent observation cover, the float and the turning column which are connected through magnetic coupling are easily interfered by an external magnetic field, and after the turning column is interfered by the external magnetic field, the sensitivity is reduced, so that the measurement result is inaccurate; on the other hand, the transparent observation cover is installed outside the liquid storage equipment and is easy to collide by external force, so that the liquid level meter is easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can effectively avoid external disturbance and outside collision's magnetism floater level gauge.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a magnetic floating ball liquid level meter comprises a shell, a floating ball, a connecting rod, a magnetic coupling assembly and a display module, wherein the connecting rod is L-shaped, the longer end of the connecting rod is fixedly connected with the magnetic coupling assembly, the longer section of the connecting rod and the magnetic coupling assembly are both positioned in the shell, the side of the shell, far away from the shorter end of the connecting rod, is fixedly connected with the display module, and the shorter end of the connecting rod is fixedly connected with the floating ball;

the magnetic coupling assembly comprises a first magnet fixedly connected with the connecting rod, a sealing ring fixedly connected with the shell and a second magnet rotatably connected with the sealing ring;

display module include with casing fixed connection's transparent observation cover, be located the inside panel board of transparent observation cover and be the pointer of the type of falling U, second magnet is located inside the panel board, the pointer cover is established on the panel board, just the one end of pointer with second magnet fixed connection, the display module outside is provided with the shielding protection casing.

By adopting the technical scheme, the floating ball rotates according to the height of the liquid level to drive the connecting rod to rotate, the friction force between the first magnet and the second magnet which are in magnetic coupling connection is small, and the sensitivity is high; the second magnet and the pointer which are fixedly connected can accurately display on the instrument panel according to the rotation of the connecting rod; the sealing ring positioned between the first magnet and the second magnet separates the shell into two parts, so that liquid in the liquid storage device is prevented from entering the display module through the shell, the sensitivity of the pointer is reduced, and the instrument panel is inconvenient for workers to observe; the shielding protection casing shields the interference of external magnetic field to the magnetic coupling subassembly on the one hand, and on the other hand avoids transparent observation cover to receive external force and is destroyed, improves the life of structure.

The utility model discloses further set up to: the shielding protection casing bottom is equipped with a pair of relative first stopper that sets up, the casing orientation the side of shielding protection casing seted up with first stopper matched with U type spacing groove, U type spacing groove one end opening, the other end seals inside the casing.

Through adopting above-mentioned technical scheme, set up stopper and U type spacing groove relatively, can fix shielding protection casing on the casing, can effectually avoid shielding protection casing to receive external force and drop, the staff of also being convenient for opens and shuts shielding protection casing and observes the panel board.

The utility model discloses further set up to: the bottom of the closed end of the U-shaped limiting groove is provided with a groove, a spring is fixedly and vertically arranged in the groove, and a lug is fixedly connected to one end, far away from the bottom of the groove, of the spring.

Through adopting above-mentioned technical scheme, at the inside lug that passes through spring coupling of recess, after the stopper gets into the spacing groove, fix the stopper in U type spacing groove confined one end through the lug, avoid shielding protection casing to drop at transportation, transport etc. in-process, improve the stability of structure.

The utility model discloses further set up to: the convex part of the lug is hemispherical.

By adopting the technical scheme, when the limiting block enters the limiting groove, the hemispherical convex block is convenient for the limiting block to enter the closed end of the U-shaped limiting groove due to smooth surface and small friction force; after entering, the hemispherical lug can fix the limiting block in the U-shaped limiting groove to prevent falling.

The utility model discloses further set up to: the positive and negative poles of the first magnet and the second magnet are both positioned on the same plane.

Through adopting above-mentioned technical scheme, first magnet and the second magnet that positive negative pole all is located the coplanar not only can provide radial magnetic force, can provide circumferential magnetic force moreover, with first magnet and the relative locking of second magnet, under the drive in magnetic field, second magnet is higher with first magnet sensitivity.

The utility model discloses further set up to: the first magnet is fixedly connected with the connecting rod through a rivet and a fastening nut.

Through adopting above-mentioned technical scheme, rivet and fastening nut cooperation are tightly fixed first magnet on the connecting rod, prevent that first magnet from droing from the connecting rod in long-time use.

The utility model discloses further set up to: and a second limiting block is further arranged at one end, facing the floating ball, of the shell.

Through adopting above-mentioned technical scheme, the second stopper is injectd the connecting rod rotation range, when preventing the liquid level too high, the connecting rod rotates and surpasss maximum scope.

The utility model discloses further set up to: and a buffer cushion is arranged on the surface of one side, facing the connecting rod, of the second limiting block.

Through adopting above-mentioned technical scheme, the blotter plays the effect of protection connecting rod, prevents that the connecting rod from striking the stopper in long-time use, improves the life of connecting rod.

To sum up, the beneficial effects of the utility model are that:

1. the technology that the shielding protective cover is arranged outside the transparent observation cover is adopted, so that the influence of an external magnetic field on the normal work of the magnetic coupling assembly can be shielded, the transparent observation cover is prevented from being damaged by external force, and the service life is shortened;

2. the technology of the first magnet and the second magnet with the positive and negative poles positioned on the same plane is adopted, so that the sensitivity effect of the magnetic coupling assembly can be improved;

3. the technology of the first magnet fixed by the fastening bolt is adopted, so that the stability of the structure between the connecting rod and the first magnet can be improved, and the effect that the first magnet falls off in the long-time use process is prevented.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a schematic sectional view in the direction of a-a in fig. 1.

Fig. 3 is a partially enlarged schematic view of a portion B in fig. 2.

Fig. 4 is an exploded view of the shield enclosure and housing of fig. 3.

Fig. 5 is a schematic structural diagram for embodying the magnetic coupling assembly in the present embodiment.

In the figure, 1, a housing; 11. a U-shaped limiting groove; 111. a groove; 112. a spring; 113. a bump; 12. a second limiting block; 121. a cushion pad; 2. a floating ball; 3. a connecting rod; 31. riveting; 32. fastening a nut; 4. a magnetic coupling assembly; 41. a first magnet; 42. a seal ring; 43. a second magnet; 5. a display module; 51. a transparent viewing cover; 52. an instrument panel; 53. a pointer; 6. a shielding shield; 61. a first stopper.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): referring to fig. 1, 2 and 3, for the utility model discloses a magnetic floating ball level meter, including casing 1, floater 2, connecting rod 3, magnetic coupling subassembly 4 and display module 5, connecting rod 3 is the L type, the longer one end of connecting rod 3 and magnetic coupling subassembly 4 fixed connection, the longer one section of connecting rod 3 and magnetic coupling subassembly 4 are all located inside casing 1, the casing 1 keeps away from the shorter one side of connecting rod 3 and is fixed connection with display module 5, the shorter one end of connecting rod 3 and floater 2 fixed connection;

the magnetic coupling assembly 4 comprises a first magnet 41 fixedly connected with the connecting rod 3, a sealing ring 42 fixedly connected with the shell 1 and a second magnet 43 rotatably connected with the sealing ring 42;

the display module 5 comprises a transparent observation cover 51 fixedly connected with the shell 1, an instrument panel 52 positioned inside the transparent observation cover 51 and an inverted U-shaped pointer 53, the second magnet 43 is positioned inside the instrument panel 52, the pointer 53 is sleeved on the instrument panel 52, one end of the pointer 53 is fixedly connected with the second magnet 43, and a shielding protective cover 6 is arranged outside the display module 5.

The shell 1 comprises a main pipeline, a thread arranged on the surface and connected with the liquid storage equipment, and an end part connected with the display module 5; a reinforcing gasket for reinforcing the connecting rod 3 is further arranged inside the shell 1, so that the connecting rod 3 is prevented from falling off from the inside of the shell 1; the connecting rod 3 is in threaded connection with the floating ball 2, and the joint of the floating ball 2 and the connecting rod 3 is sealed by sealant, so that liquid in the liquid storage equipment is prevented from permeating into the floating ball 2 to influence the accuracy of a measuring result; a connecting gasket is arranged between the inverted U-shaped pointer 53 and the second magnet 43, the gasket and the pointer 53 are integrally formed, the gasket is clamped between the second magnet 43, and the second magnet 43 and the pointer 53 connected through the gasket are stable in structure; the second magnet 43 is rotatably connected with the sealing ring 42 through a rotating shaft, and the friction force between the second magnet 43 and the sealing ring 42 connected through the rotating shaft is low, so that the sensitivity of the pointer 53 is improved; the instrument panel 52 includes a normal section in the middle, an over-high section in the upper part, and an over-bottom section in the lower part, the range of the normal section is enlarged compared with the existing range, and the moving range of the pointer 53 is increased; the shielding protective cover 6 is made of a copper-aluminum compact shell 1.

The floating ball 2 rotates along with the change of the height of the liquid level to drive the connecting rod 3 to rotate, the friction force between the first magnet 41 and the second magnet 43 which are in magnetic coupling connection is small, and the sensitivity is high; the second magnet 43 and the pointer 53 are fixedly connected, and the pointer 53 can be accurately displayed on the instrument panel 52 according to the rotation of the connecting rod 3; the seal ring 42 between the first magnet 41 and the second magnet 43 separates the housing 1 into two parts, preventing the liquid in the liquid storage device from entering the display module 5 through the housing 1, on one hand, the sensitivity of the pointer 53 is reduced, and on the other hand, the staff is disturbed to observe the instrument panel 52; the shielding shield 6 shields the interference of the external magnetic field to the magnetic coupling assembly 4, and prevents the transparent observation cover 51 from being damaged by external force, thereby prolonging the service life of the structure.

Referring to fig. 4, the bottom of the shielding protection cover 6 is provided with a pair of first limiting blocks 61 which are oppositely arranged, the side surface of the housing 1 facing the shielding protection cover 6 is provided with a U-shaped limiting groove 11 matched with the first limiting blocks 61, one end of the U-shaped limiting groove 11 is open, and the other end of the U-shaped limiting groove is sealed inside the housing 1. First stopper 61 and shielding protection casing 6 are integral structure, have good stability, set up stopper and U type spacing groove 11 relatively, and the staff of being convenient for installs and takes off shielding protection casing 6, can fix shielding protection casing 6 on casing 1 in addition, and not only effectual shielding protection casing 6 of avoiding receives external force and drops, and the staff of also being convenient for opens and shuts shielding protection casing 6 and observes panel board 52.

Referring to fig. 4, a groove 111 is formed at the bottom of the closed end of the U-shaped limiting groove 11, a spring 112 is fixedly and vertically arranged in the groove 111, and a protrusion 113 is fixedly connected to one end of the spring 112 far away from the bottom of the groove 111. The size of the bump 113 is smaller than the opening size of the groove 111, and the bump 113 is connected with the groove 111 through the spring 112; after the limiting block enters the limiting groove, the limiting block is fixed at one end of the U-shaped limiting groove 11 in a sealed mode through the convex block 113, the shielding protective cover 6 is prevented from falling off in the processes of transportation, carrying and the like, and the stability of the structure is improved.

Referring to fig. 4, the convex portion of the bump 113 has a hemispherical shape. When the limiting block enters the limiting groove, the surface of the hemispherical bump 113 is smooth, so that the friction force is small, and the limiting block can conveniently enter the closed end of the U-shaped limiting groove 11; after entering, the hemispherical convex block 113 can fix the limiting block at the closed end of the U-shaped limiting groove 11, so as to prevent the shielding protective cover 6 from falling off.

Referring to fig. 5, the positive and negative poles of the first magnet 41 and the second magnet 43 are located on the same plane. The first magnet 41 and the second magnet 43, of which the positive poles and the negative poles are located on the same plane, can provide not only radial magnetic force but also circumferential magnetic force, so that the positions of the first magnet 41 and the second magnet 43 are relatively locked, and the sensitivity of the second magnet 43 and the first magnet 41 is higher under the driving of a magnetic field.

Referring to fig. 1, a second stopper 12 is further disposed at one end of the housing 1 facing the floating ball 2. The second stopper 12 limits the rotation range of the connecting rod 3, and when the liquid level is prevented from being too high, the connecting rod 3 rotates to exceed the maximum range, and the connecting rod 3 can be effectively fixed inside the shell 1, so that the connecting rod 3 is prevented from falling off along with the floating ball 2.

Referring to fig. 1, a surface of the second stopper 12 on a side facing the link 3 is provided with a cushion pad 121. The buffer pad 121 plays a role in protecting the connecting rod 3, so that the connecting rod 3 is prevented from impacting a limiting block in the long-time use process, and the service life of the connecting rod 3 is prolonged.

The implementation principle of the above embodiment is as follows:

the magnetic floating ball liquid level meter is fixed on the side face of liquid storage equipment through threads on the surface of the shell 1, the floating ball 2 rotates according to the height of liquid in the liquid storage equipment, the connecting rod 3 fixedly connected with the floating ball 2 drives the first magnet 41 at the end part to rotate along with the rotation of the floating ball 2, the second magnet 43 and the first magnet 41 are locked relatively at the circumferential position and also rotate mutually, the pointer 53 fixedly connected with the second magnet 43 can accurately display on the surface of the instrument panel 52, the external shielding protective cover 6 prevents the transparent observation cover 51 from being damaged by external force and needs to be replaced, on the other hand, the magnetic coupling component 4 provides protection, the sensitivity of the magnetic coupling component 4 is prevented from being influenced by an external magnetic field, and the equipment is caused to fail.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A magnetic floating ball liquid level meter comprises a shell (1), a floating ball (2), a connecting rod (3), a magnetic coupling component (4) and a display module (5), wherein the connecting rod (3) is L-shaped, the longer end of the connecting rod (3) is fixedly connected with the magnetic coupling component (4), the longer section of the connecting rod (3) and the magnetic coupling component (4) are both positioned in the shell (1), the side, far away from the shorter side of the connecting rod (3), of the shell (1) is fixedly connected with the display module (5), and the shorter end of the connecting rod (3) is fixedly connected with the floating ball (2);

the method is characterized in that: the magnetic coupling assembly (4) comprises a first magnet (41) fixedly connected with the connecting rod (3), a sealing ring (42) fixedly connected with the shell (1) and a second magnet (43) rotatably connected with the sealing ring (42);

display module (5) include with casing (1) fixed connection's transparent observation cover (51), be located transparent observation cover (51) inside panel board (52) and be pointer (53) of the type of falling U, second magnet (43) are located inside panel board (52), pointer (53) cover is established on panel board (52), just the one end of pointer (53) with second magnet (43) fixed connection, display module (5) outside is provided with shielding protection casing (6).

2. A magnetic-levitation ball level gauge as recited in claim 1, wherein: the shielding protection cover is characterized in that a pair of first limiting blocks (61) which are oppositely arranged are arranged at the bottom of the shielding protection cover (6), the shell (1) faces towards the side face of the shielding protection cover (6), the U-shaped limiting groove (11) matched with the first limiting blocks (61) is formed in the side face of the shielding protection cover, one end of the U-shaped limiting groove (11) is open, and the other end of the U-shaped limiting groove is sealed inside the shell (1).

3. A magnetic-levitation ball level gauge as recited in claim 2, wherein: the bottom of the closed end of the U-shaped limiting groove (11) is provided with a groove (111), a spring (112) is fixedly and vertically arranged in the groove (111), and a lug (113) is fixedly connected to one end, far away from the bottom of the groove (111), of the spring (112).

4. A magnetic-levitation ball level gauge as recited in claim 3, wherein: the convex part of the bump (113) is hemispherical.

5. A magnetic-levitation ball level gauge as recited in claim 1, wherein: the positive pole and the negative pole of the first magnet (41) and the second magnet (43) are positioned on the same plane.

6. A magnetic-levitation ball level gauge as recited in claim 1, wherein: the first magnet (41) is fixedly connected with the connecting rod (3) through a rivet (31) and a fastening nut (32).

7. A magnetic-levitation ball level gauge as recited in claim 1, wherein: and a second limiting block (12) is further arranged at one end, facing the floating ball (2), of the shell (1).

8. A magnetic-levitation ball level gauge as recited in claim 7, wherein: a buffer pad (121) is arranged on the surface of one side, facing the connecting rod (3), of the second limiting block (12).