CN103925969A - Liquid medium filling degree detection device - Google Patents

Abstract

The invention discloses a liquid medium filling degree detection device which is composed of a floater, a conical pipe, an upper guiding sleeve, a lower guiding sleeve, a rotating shaft, a permanent magnet, a pointer, a dial, a support and a spring. The upper guiding sleeve and the lower guiding sleeve are arranged in the conical pipe. The floater is arranged between the upper guiding sleeve and the lower guiding sleeve. The floater can move between the upper guiding sleeve and the lower guiding sleeve. A magnet segment is arranged on the floater, the upper end of the upper guiding sleeve is provided with a limiting protrusion, and the spring is connected outside the upper guiding sleeve in a sleeved mode. The permanent magnet, the rotating shaft, the pointer, the dial and the support are arranged on the outer side of the conical pipe. The permanent magnet is arranged in a magnetic field area range of the magnetic segment, one end of the rotating shaft is fixedly connected with the permanent magnet, and the other end of the rotating shaft is connected with the pointer. The middle of the rotating shaft is connected with the support in a rotating mode, and the dial is arranged in the position between the pointer and the support. The liquid medium filling degree detection device has the advantages that the filling degree of liquid in a pipeline container can be detected, close-range observation by personnel is not needed, and operation is convenient and safe.

Description

Liquid medium filling degree detection device

technical field

The present invention relates to a fluid measurement technology, in particular to a liquid medium filling degree detection device.

Background technique

In many technical fields, in order to avoid liquid overflow and ensure the accuracy of filling liquid, it is necessary to detect the fullness of pipelines and containers; in the prior art, due to the lack of corresponding detection devices, the work of detecting liquid fullness It can only be controlled by close observation by the operator on site. This detection method is not only time-consuming and laborious, but also has certain safety hazards when filling some dangerous liquids.

Contents of the invention

Aiming at the problems in the background technology, the present invention proposes a liquid medium filling degree detection device, the structure of which is: the liquid medium filling degree detection device consists of a float, a tapered tube, an upper guide sleeve, a lower guide sleeve, a rotating shaft, Composed of permanent magnets, pointers, dials, brackets and springs; the float is composed of a magnetic section, an upper guide column and a lower guide column, the upper guide column is fixed on the upper end of the magnetic section, the lower guide column is fixed on the lower end of the magnetic section, and The magnetic section, the upper guide column and the lower guide column are coaxial; the two magnetic poles of the magnetic section are respectively located at the upper and lower ends of the magnetic section; the upper guide sleeve and the lower guide sleeve are arranged in the tapered tube along the axial direction of the tapered tube , there is a gap between the two guide sleeves; the float is set between the upper guide sleeve and the lower guide sleeve, the upper guide column is inserted into the upper guide sleeve, the lower guide column is inserted into the lower guide sleeve, and the magnetic section is stuck on the upper guide sleeve. Between the guide sleeve and the lower guide sleeve, and the magnetic section can move between the upper guide sleeve and the lower guide sleeve; the upper end of the upper guide sleeve is provided with a limit protrusion, and the spring is sleeved outside the upper guide sleeve, and the inner diameter of the spring is smaller than the limit Protrusion; the lower end of the spring is in contact with the upper end surface of the magnetic segment, and there is a gap between the upper end of the spring and the limit protrusion; the permanent magnet, rotating shaft, pointer, dial and bracket are all arranged outside the tapered tube; wherein, the permanent magnet is set Within the magnetic field area of the magnetic segment; one end of the rotating shaft is fixedly connected to the permanent magnet, the other end of the rotating shaft is connected to the pointer, the middle part of the rotating shaft is connected to the bracket in rotation, and the axial direction of the rotating shaft is parallel to the radial direction of the tapered tube; the dial is set on the pointer and the bracket position in between.

The principle of the present invention is: the structure formed by the float, the tapered tube, the guide, and the spring essentially constitutes a detection device whose working principle is similar to that of the float flowmeter. The amount is converted into the displacement change of the float, and then through the magnetic field between the magnetic section and the permanent magnet, the displacement change of the float can be converted into the rotation change of the pointer; the specific working process is: when filling the container with liquid When the liquid is injected, the air in the container is discharged from the emptying pipe, and the emptying pipe is connected in series with the liquid medium filling degree detection device, and the float floats up to a certain height under the impact of the air, thus driving the pointer Rotate, the operator can determine that the medium is being injected into the container according to the indication of the pointer. When the container is full, the medium will overflow from the emptying pipe. At this time, the float will be subjected to a greater force than the previous gas force. The float will move up to another height, so that the position of the pointer changes. According to the indication of the pointer, the operator can judge that the container is full at this time. The transmission relationship between the magnetic segment and the pointer is: when the float is displaced, the magnetic field of the magnetic segment is also moving. Affected by the movement of the magnetic field, the permanent magnet will also be displaced accordingly. However, since the permanent magnet is fixed on the shaft, the permanent magnet The magnet can only drive the rotating shaft to rotate together. Driven by the rotating shaft, the pointer also rotates accordingly. By pre-calibrating the dial, the filling degree and the rotation range of the rotating shaft, the fullness of the container can be known through the indicated position of the pointer. Among them, the role of the spring is: when the medium is first filled into the container, the force of the air discharged from the container may be very large in an instant, and the position of the float may be rushed to a high level, which will affect the detection. Accuracy, and after the spring is set, it can prevent the float from rising too high under the action of the instantaneous impact force, and at the same time improve the flexibility of the float reset.

In order to facilitate remote operation, the present invention also makes the following improvements: an extension frame is provided on the support, and a proximity switch is arranged on the extension frame; a trigger sheet is provided on the rotating shaft, and the trigger sheet is matched with the proximity switch; The switch and the trigger sheet form an indicator light trigger switch; the indicator light trigger switch is electrically connected with an indicator light. The proximity switch is an electrical component commonly used in the prior art. Its working principle is: when the trigger piece enters the trigger groove on the proximity switch, the proximity switch is turned on, otherwise the proximity switch is cut off; in the present invention, the rotating shaft is used to drive the trigger piece Rotate, when the trigger plate rotates to the trigger slot in the proximity switch, the proximity switch will be turned on, and the corresponding control circuit will light up the indicator light; Remote detection of the filling degree is carried out by identifying the on and off of the indicator light, which is very convenient to operate and has high safety.

In order to precisely control the liquid injection process, the present invention also makes the following improvements: the number of the indicator light trigger switches is two or three, and each indicator light trigger switch is connected with an indicator light. When only two indicator lights are set, one of the indicator lights is used to remind the operator that the container is about to be filled, and the other indicator light is used to remind the operator that the container has been filled; when only three indicator lights are set, one of them is used One is used to remind the operator that the medium injection operation has started, and the other two are used to indicate that the container is about to be filled and the container has been filled. After associating the filling device with the trigger switch of the indicator light, the automatic control of the filling operation can also be realized.

The beneficial technical effects of the invention are: the filling degree of the liquid in the pipeline container can be detected without close observation by personnel, and the operation is convenient and safe.

Description of drawings

Fig. 1, structural representation of the present invention;

The names corresponding to each mark in the figure are: magnetic section 1-1, upper guide column 1-2, lower guide column 1-3, tapered tube 2, upper guide sleeve 3-1, lower guide sleeve 3-2, rotating shaft 4. Trigger sheet 4-1, permanent magnet 5, pointer 6, dial 7, bracket 8, extension frame 8-1, spring 9.

Detailed ways

A liquid medium filling degree detection device, the liquid medium filling degree detection device consists of a float, a tapered tube 2, an upper guide sleeve 3-1, a lower guide sleeve 3-2, a rotating shaft 4, a permanent magnet 5, a pointer 6, Composed of dial 7, bracket 8 and spring 9;

The float is composed of a magnetic section 1-1, an upper guide column 1-2 and a lower guide column 1-3, the upper guide column 1-2 is fixed on the upper end of the magnetic section 1-1, and the lower guide column 1-3 is fixed on the magnetic The lower end of the segment 1-1, and the magnetic segment 1-1, the upper guide column 1-2 and the lower guide column 1-3 are coaxial; the two magnetic poles of the magnetic segment 1-1 are respectively located in the magnetic segment 1-1 The upper and lower ends of the upper and lower guide sleeves; the upper guide sleeve 3-1 and the lower guide sleeve 3-2 are arranged in the tapered tube 2 along the axial direction of the tapered tube 2, and there is a gap between the two guide sleeves 3; the float is arranged on the upper guide sleeve 3-1 and the lower guide sleeve 3-2, the upper guide column 1-2 is inserted in the upper guide sleeve 3-1, the lower guide column 1-3 is inserted in the lower guide sleeve 3-2, and the magnetic section 1- 1 is stuck between the upper guide sleeve 3-1 and the lower guide sleeve 3-2, and the magnetic segment 1-1 can move between the upper guide sleeve 3-1 and the lower guide sleeve 3-2; the upper guide sleeve 3-1 The upper end of the upper end is provided with a limit protrusion, the spring 9 is sleeved outside the upper guide sleeve 3-1, and the inner diameter of the spring 9 is smaller than the limit protrusion; the lower end of the spring 9 is in contact with the upper end surface of the magnetic segment 1-1, and the upper end of the spring 9 is in contact with the limit protrusion There is a gap between them; the permanent magnet 5, the rotating shaft 4, the pointer 6, the dial 7 and the bracket 8 are all arranged on the outside of the tapered tube 2; wherein the permanent magnet 5 is arranged in the magnetic field area of the magnetic section 1-1 One end of the rotating shaft 4 is fixedly connected with the permanent magnet 5, the other end of the rotating shaft 4 is connected with the pointer 6, the middle part of the rotating shaft 4 is connected with the bracket 8 in rotation, the axial direction of the rotating shaft 4 is parallel to the radial direction of the tapered tube 2; the dial 7 is arranged on the pointer 6 and the position between the bracket 8.

Further, the bracket 8 is provided with an extension frame 8-1, and a proximity switch 8-2 is arranged on the extension frame 8-1; The switches 8-2 are matched; the extension frame 8-1, the proximity switch 8-2 and the trigger sheet 4-1 form an indicator light trigger switch; the indicator light trigger switch is electrically connected with an indicator light.

Further, the number of the indicator light trigger switches is two or three, and each indicator light trigger switch is connected with an indicator light.

The magnetic segment 1-1 can be made by using a built-in bar magnet; the permanent magnet 5 can be made of magnetic steel.

Claims (3)

1. liquid medium degree of a filling with pick-up unit, is characterized in that: described liquid medium degree of filling with pick-up unit is comprised of float, Taper Pipe (2), upper orienting sleeve (3-1), lower orienting sleeve (3-2), rotating shaft (4), permanent magnet (5), pointer (6), index dial (7), support (8) and spring (9);

Described float is comprised of magnetic sections (1-1), upper guidepost (1-2) and lower guidepost (1-3), upper guidepost (1-2) is fixed on the upper end of magnetic sections (1-1), lower guidepost (1-3) is fixed on the lower end of magnetic sections (1-1), and magnetic sections (1-1), upper guidepost (1-2) and lower guidepost (1-3) three are coaxial; Two magnetic poles of described magnetic sections (1-1) lay respectively at the upper/lower terminal of magnetic sections (1-1);

Upper orienting sleeve (3-1) and lower orienting sleeve (3-2) are axially set in Taper Pipe (2) along Taper Pipe (2), between two orienting sleeves (3), leave gap;

Float is arranged between orienting sleeve (3-1) and lower orienting sleeve (3-2), upper guidepost (1-2) is plugged in orienting sleeve (3-1), lower guidepost (1-3) is plugged in lower orienting sleeve (3-2), magnetic sections (1-1) is stuck between orienting sleeve (3-1) and lower orienting sleeve (3-2), and magnetic sections (1-1) can be moved between upper orienting sleeve (3-1) and lower orienting sleeve (3-2);

The upper end of upper orienting sleeve (3-1) is provided with spacing preiection, and spring (9) is socketed in outside orienting sleeve (3-1), and spring (9) internal diameter is less than spacing preiection; Spring (9) lower end contacts with magnetic sections (1-1) upper surface, between spring (9) upper end and spacing preiection, leaves gap;

Described permanent magnet (5), rotating shaft (4), pointer (6), index dial (7) and support (8) are all arranged at Taper Pipe (2) outside; Wherein, permanent magnet (5) is arranged within the scope of the field region of magnetic sections (1-1); Rotating shaft (4) one end is fixedly connected with permanent magnet (5), and rotating shaft (4) other end is connected with pointer (6), and rotating shaft (4) middle part is rotationally connected with support (8), the radial parallel of the axial and Taper Pipe (2) of rotating shaft (4);

Index dial (7) is arranged at the position between pointer (6) and support (8).

2. liquid medium degree of filling with pick-up unit according to claim 1, is characterized in that: on described support (8), be provided with Extension support (8-1), be provided with an approach switch (8-2) on Extension support (8-1); In described rotating shaft (4), be provided with and trigger sheet (4-1), trigger sheet (4-1) and mate with approach switch (8-2); Extension support (8-1), approach switch (8-2) and triggering sheet (4-1) form a pilot lamp trigger switch; Pilot lamp trigger switch and pilot lamp electrical connection.

3. liquid medium degree of filling with pick-up unit according to claim 1, is characterized in that: the quantity of described pilot lamp trigger switch is two or three, and each pilot lamp trigger switch is respectively connected with a pilot lamp.