Mechanical floating ball liquid level meter with top-mounted instrument

Abstract

The utility model relates to a mechanical floating ball liquid level meter with a top-mounted instrument, and belongs to the technical field of liquid level meters. The device comprises a sealed measuring tube communicated with a container to be measured, and symmetrically distributed magnets are arranged in a floating ball assembly sleeved outside the tube; the magnetic steel in the pipe is connected with the driving rotating shaft through the linkage piece, the rotating angle is amplified through the gear set transmission assembly, and the long pointer and the short pointer of the instrument are driven to display the centimeter-level liquid level and the meter-level liquid level respectively. The floating ball assembly moves along the measuring pipe along with liquid level rising and falling, the magnet and the magnetic steel are magnetically coupled to drive a mechanical transmission chain, intervention of electronic elements is avoided, and the device adapts to high-temperature, high-pressure and corrosive environments. A threaded counterweight shaft and an adjustable counterweight block are arranged at the bottom of the floating ball to ensure that buoyancy is matched with liquid density; and the gear set realizes multi-stage precision display by adopting a differential transmission ratio. The liquid level meter solves the problems of poor stability, potential safety hazards and high maintenance cost of a traditional liquid level meter under complex working conditions through a pure mechanical structure, and is high in reliability and easy to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid level meter technical field especially a mechanical type float ball liquid level meter of instrument top loading. BACKGROUND

[0002] In the industrial production process, the accurate measurement and monitoring of liquid level is a crucial link.

[0003] Traditional liquid level measurement technology, such as capacitive, pressure and ultrasonic liquid level meter, although can meet the demand of liquid level measurement to some extent, but in specific environment, such as high temperature, high pressure, flammable and explosive and corrosive medium and other complex working conditions, its application has been greatly limited.

[0004] First, from the measurement stability, the traditional liquid level meter often depends on the complex electronic component part, and the electronic component part is prone to failure in harsh working environment, leading to inaccurate measurement or signal distortion. In addition, the complex structure also increases the difficulty and cost of maintenance, which is not conducive to the long-term operation of enterprises.

[0005] Secondly, in flammable and explosive places, due to the possibility of electric spark or high temperature, there are safety hazards such as fire or explosion.

[0006] Therefore, in these special environments, a reasonable and stable liquid level measurement technology is needed to ensure production safety. Based on the above consideration, designing a mechanical type float ball liquid level meter with instrument top loading is the need of the society. CONTENT OF THE UTILITY MODEL

[0007] The applicant provides a mechanical type float ball liquid level meter with instrument top loading based on Archimedes buoyancy principle and magnetic coupling effect design, which does not need to assemble complex electronic components, has high stability, safety and low maintenance cost.

[0008] The technical scheme adopted by the utility model is as follows: a mechanical type float ball liquid level meter with instrument top loading, comprising:

[0009] The instrument is connected with the sealed measuring pipe at the bottom;

[0010] The float ball assembly is sleeved on the sealed measuring pipe, and the float ball assembly comprises a float ball body and at least one magnet arranged in the float ball body. A counterweight shaft is additionally arranged at the bottom of the float ball body, and a counterweight block is arranged on the counterweight shaft.

[0011] The magnet steel is arranged in the sealed measuring pipe, and one end of the magnet steel is connected with the driving shaft through the linkage.

[0012] The transmission assembly is matched with the other side of the driving rotating shaft to enlarge the rotating angle of the driving rotating shaft and drive the indicating needle in the instrument to rotate;

[0013] The floating ball body moves vertically along the sealed measuring tube with the change of liquid level, drives the magnetic steel to move synchronously through the non-contact magnetic coupling of the magnet and the magnetic steel, further drives the driving rotating shaft to rotate through the linkage, and transmits to the indicating needle on the instrument through the transmission assembly to display the liquid level.

[0014] As a further improvement of the above technical solution:

[0015] Preferably, the structure of the instrument comprises a scale and an indicating needle arranged around the dial of the instrument; the indicating needle comprises a long hand and a short hand; the transmission assembly is a gear set comprising a high-speed ratio gear and a low-speed ratio gear, the high-speed ratio gear is coaxially connected with the long hand in the instrument, and the low-speed ratio gear is coaxially connected with the short hand in the instrument.

[0016] More preferably, the long hand is used for indicating the centimeter-level liquid level scale, and the short hand is used for indicating the meter-level liquid level scale.

[0017] Preferably, the linkage is a connecting rod structure, one end of which is hingedly connected with the magnetic steel, and the other end of which is fixedly connected with the driving rotating shaft.

[0018] Preferably, the magnet is arranged in multiple, and the multiple magnets are symmetrically arranged around the axis of the floating ball body as a reference center to form a uniformly distributed magnetic coupling driving structure.

[0019] Preferably, the outer surface of the counterweight shaft is provided with threads, and the counterweight block is fixedly connected with the counterweight shaft through threads.

[0020] Preferably, a connecting piece is arranged on the sealed measuring tube and located at a position above the floating ball assembly, and the connecting piece is used for assembling with the container to be measured.

[0021] Preferably, the connecting piece is a connecting flange, and the connecting flange is fixedly connected with the top of the container to be measured through a joint.

[0022] Preferably, a sealing ring is additionally arranged at the contact end of the connecting flange and the joint.

[0023] The beneficial effects of the utility model are as follows:

[0024] The utility model has the advantages of compact structure, mechanical structure, and independence from complex electronic components, so that the measurement stability can be maintained under complex working conditions such as high temperature, high pressure, flammable and explosive, and corrosive medium, and the problems of inaccurate measurement or signal distortion caused by electronic component failure are avoided.

[0025] The utility model also has the following advantages:

[0026] (1) The utility model maintains more convenient, reduces the long-term operation cost of enterprise. In addition, frequent replacement of electronic components is not needed, and production loss caused by breakdown is also reduced;

[0027] (2) The screw weight shaft and adjustable counterweight of the float ball assembly bottom are equipped, ensure that the buoyancy and liquid density match, so that the liquid level meter can be applicable to the liquid measurement of different density, and the universality and adaptability thereof are enhanced;

[0028] (3) The utility model drives through gear set, adopts difference transmission ratio, realizes multistage precision display, including centimeter level and meter level liquid level scale, satisfies the measurement scene of different precision demand. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the whole structure schematic view of the utility model.

[0030] Figure 2 It is the front view of Figure 1 .

[0031] Figure 3 It is the transmission structure schematic view of the utility model.

[0032] Figure 4 It is the surface structure schematic view of the instrument of the utility model.

[0033] Figure 5 It is the structure schematic view of the float ball assembly of the utility model.

[0034] Figure 6 It is the assembly schematic view of the connecting piece of the utility model in a specific embodiment.

[0035] Wherein: 1, instrument;2, sealed measuring tube;3, connecting piece;4, float ball assembly;5, magnetic steel;6, linkage;7, driving shaft;8, transmission assembly;

[0036] 101, scale;102, indicating needle;

[0037] 401, float ball main body;402, magnet;403, weight shaft;404, counterweight. DETAILED DESCRIPTION

[0038] The specific implementation of the utility model will be described below in combination with the drawings.

[0039] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings. The drawings show the preferred embodiments of the utility model. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terminology used in the specification of the utility model herein is only for the purpose of describing specific embodiments and is not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0041] In the case of using "including", "having", and "containing" described herein, unless using the explicit limiting language, such as "only", "consisting of", etc., another component can be added. Unless otherwise mentioned, the singular form of the term can include the plural form and cannot be understood as one in number.

[0042] It should be understood that although the terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of the utility model, the first element can be called the second element, and similarly, the second element can be called the first element.

[0043] In addition, the drawings are not drawn to scale 1:1, and the relative sizes of the elements are only drawn by example in the drawings, not necessarily in true proportion.

[0044] As Figures 1-5 , a structure state schematic diagram of a mechanical type floating ball liquid level meter with instrument top loading in an embodiment of the utility model is shown; for the convenience of description, the drawings only show the structures related to the embodiments of the utility model.

[0045] In the embodiment, a mechanical type floating ball liquid level meter with instrument top loading is provided, which comprises:

[0046] An instrument 1, the bottom of which is communicated with a sealed measuring pipe 2;

[0047] A floating ball assembly 4 is sleeved on the sealed measuring pipe 2, the floating ball assembly 4 comprises a floating ball main body 401 and at least one magnet 402 arranged inside the floating ball main body 401, and a counterweight shaft 403 is additionally arranged at the bottom of the floating ball main body 401, and a counterweight block 404 is arranged on the counterweight shaft 403;

[0048] The magnet 5 is installed inside the sealed measuring tube 2, and one end of the magnet 5 is connected to the active rotating shaft 7 through the linkage 6.

[0049] The transmission assembly 8, which works in conjunction with the other side of the drive shaft 7, is used to amplify the rotation angle of the drive shaft 7 and drive the indicator needle 102 inside the instrument 1 to rotate.

[0050] The float body 401 moves vertically along the sealed measuring tube 2 as the liquid level changes. Through the non-contact magnetic coupling between the magnet 402 and the magnet 5, the magnet 5 is driven to move synchronously. Then, through the linkage 6, the active rotating shaft 7 is rotated and transmitted to the indicator needle 102 on the instrument 1 via the transmission assembly 8 to display the liquid level height.

[0051] In this embodiment, the structure of the instrument 1 includes a scale 101 surrounding the instrument dial and an indicator needle 102; the indicator needle 102 includes a long pointer and a short pointer.

[0052] In this embodiment, the transmission component 8 is a gear set, including a high-speed ratio gear and a low-speed ratio gear. The high-speed ratio gear is coaxially connected to the long pointer in the instrument 1, and the low-speed ratio gear is coaxially connected to the short pointer in the instrument 1. The long pointer is used to indicate the liquid level scale at the centimeter level, and the short pointer is used to indicate the liquid level scale at the meter level.

[0053] In this embodiment, the linkage 6 is a linkage structure, one end of which is hinged to the magnet 5, and the other end is fixedly connected to the drive shaft 7.

[0054] In this embodiment, multiple magnets 402 are provided, and the multiple magnets 402 are arranged symmetrically around the axis of the float body 401 as a reference center to form a uniformly distributed magnetic coupling drive structure.

[0055] In this embodiment, the outer surface of the counterweight shaft 403 is provided with threads, and the counterweight block 404 is connected and fixed to the counterweight shaft 403 through the threads.

[0056] In this embodiment, a connector 3 is provided on the sealed measuring tube 2 and located above the float assembly 4. The connector 3 is used to assemble with the container to be tested.

[0057] like Figure 6 The diagram shown is an assembly schematic of the connector 3 of this utility model. In one specific embodiment, the connector 3 is a connecting flange, which is fixedly connected to the top interface of the container to be tested via a joint; furthermore, a sealing ring is added to the contact end between the connecting flange and the joint to enhance the sealing performance of the connection.

[0058] The operating principle of this utility model is as follows:

[0059] The float ball assembly 4 is designed to float on the liquid surface of the container to be measured by density matching, and moves vertically along the sealed measuring tube 2 with the change of the liquid level.

[0060] In actual work, the working process of the utility model is as follows:

[0061] When the liquid level rises: the float ball assembly 4 floats up → the magnetic steel 5 moves up → the magnetic steel 5 drives the driving shaft 7 to rotate through the linkage 6 → the transmission assembly 8 (gear set) amplifies the rotation angle of the driving shaft 7 → the long pointer rotates to indicate the centimeter level, and the short pointer synchronously follows the meter scale.

[0062] When the liquid level drops: the float ball assembly 4 sinks → the magnetic steel 5 is pulled down → the magnetic steel 5 drives the driving shaft 7 to rotate reversely through the linkage 6 → the transmission assembly 8 (gear set) amplifies the rotation angle of the driving shaft 7 → the long pointer rotates to indicate the centimeter level, and the short pointer synchronously follows the meter scale.

[0063] The utility model has reasonable structure, adopts mechanical structure, and does not depend on complex electronic components, so that under the complex working conditions such as high temperature, high pressure, inflammable and explosive and corrosive medium, high measurement stability can be kept, and the problems of inaccurate measurement or signal distortion caused by electronic component failure are avoided.

[0064] The technical features of the above-described embodiments can be combined arbitrarily, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that the combinations are within the scope of the present application.

[0065] The above-described embodiments only express the implementation of the utility model, and the description is more specific and detailed, but it should not be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which are within the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A mechanical float level gauge with top mounted instrument, characterized in that, The utility model relates to a liquid level meter, which comprises: a meter (1) connected to a sealed measuring tube (2) at the bottom; a float ball assembly (4) sleeved on the sealed measuring tube (2), wherein the float ball assembly (4) comprises a float ball body (401) and at least one magnet (402) arranged inside the float ball body (401), and a counterweight shaft (403) is additionally arranged at the bottom of the float ball body (401), and a counterweight block (404) is arranged on the counterweight shaft (403); a magnetic steel (5) arranged in the sealed measuring tube (2), wherein one end of the magnetic steel (5) is connected to a driving shaft (7) through a linkage (6); a transmission assembly (8) cooperatively connected to the other side of the driving shaft (7) for amplifying the rotation angle of the driving shaft (7) and driving the indicating needle (102) in the meter (1) to rotate; wherein the float ball body (401) moves vertically along the sealed measuring tube (2) with the change of liquid level, and drives the magnetic steel (5) to synchronously displace through the non-contact magnetic coupling effect of the magnet (402) and the magnetic steel (5), and then drives the driving shaft (7) to rotate through the linkage (6), and the indicating needle (102) on the meter (1) is driven to rotate through the transmission assembly (8) to display the liquid level.

2. The instrument-mounted mechanical float and ball level meter according to claim 1, characterized in that The structure of the meter (1) comprises a scale (101) and an indicating needle (102) arranged around the dial of the meter; the indicating needle (102) comprises a long pointer and a short pointer.

3. The instrument-mounted mechanical float and ball level meter according to claim 2, characterized in that The transmission assembly (8) is a gear set comprising a high-speed ratio gear and a low-speed ratio gear, wherein the high-speed ratio gear is coaxially connected to the long pointer in the meter (1), and the low-speed ratio gear is coaxially connected to the short pointer in the meter (1).

4. The instrument-mounted mechanical float and ball level meter according to claim 3, characterized in that The long pointer is used for indicating the centimeter-level liquid level scale, and the short pointer is used for indicating the meter-level liquid level scale.

5. The top mounted mechanical float level gauge as claimed in claim 1, wherein, The linkage (6) is a connecting rod structure, one end of which is hingedly connected to the magnetic steel (5), and the other end of which is fixedly connected to the driving shaft (7).

6. The top mounted mechanical float level gauge according to claim 1, characterized in that, The magnet (402) is arranged in multiple, and the multiple magnets (402) are symmetrically arranged around the axis of the float ball body (401) as the reference center, forming a uniformly distributed magnetic coupling driving structure.

7. The top mounted mechanical float level gauge according to claim 1, characterized in that, The outer surface of the counterweight shaft (403) is provided with threads, and the counterweight block (404) is fixedly connected between the threads and the counterweight shaft (403).

8. The top mounted mechanical float level gauge according to claim 1, characterized in that, A connecting piece (3) is arranged on the sealed measuring tube (2) and located above the float ball assembly (4), and the connecting piece (3) is used for assembling with a container to be measured.

9. The instrument-mounted mechanical float and ball level meter of claim 8, wherein, The connecting piece (3) is a connecting flange, and the connecting flange is fixedly connected to the top interface of the container to be measured through a joint.

10. The top mounted mechanical float level gauge according to claim 9, characterized in that, The contact end of the connecting flange and the joint is additionally provided with a sealing ring.

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