Floater position measuring device
By designing a float position measuring device and utilizing the cooperation of a pressure plate and a support block, accurate measurement of the float position is achieved, solving the problem of inaccurate measurement in existing technologies and improving work efficiency and stability.
Patent Information
- Application Number
- CN202423080343.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-12-12
AI Technical Summary
In existing technologies, when magnetic levitation switches are used to measure the position of a float in an aircraft fuel system, size limitations lead to inaccurate measurements, low efficiency, and an inability to guarantee measurement accuracy.
Design a float position measuring device, including a pressure plate, a sleeve assembly, a float, a base, a spring, and a support block. The float is brought into contact with the support block by applying a vertically downward force. The position is indicated by a multimeter signal and kept stable under the action of the spring force. The coordinates of the support block are read to complete the measurement.
It improves the accuracy and efficiency of float position measurement, reduces the impact of human factors on measurement, and enhances the stability and accuracy of the measuring device.
Smart Images
Figure CN223815087U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of mechanical product manufacturing, specifically relates to a float position measuring device. BACKGROUND
[0002] The magnetic float switch is widely applied to the accessory product in the fuel system and oil feeding control system of the airplane, and the position of the float needs to be measured during the installation and adjustment process. The current measurement method is to use the connecting pipe nozzle of the magnetic float switch to measure the position of the float. Due to the size limitation, the stroke of the float is not enough, and thus the measurement accuracy cannot be guaranteed, the work efficiency is low, and the measurement value is not accurate. CONTENT OF THE UTILITY MODEL
[0003] The utility model aims at providing a float position measuring device to measure the position of the float, improve the work efficiency, and improve the product quality of the work stability.
[0004] The technical scheme of the utility model is a kind of float position measuring device, including pressing plate, pipe sleeve assembly (dry spring pipe), float (magnetic steel), base, spring, support block, wherein:
[0005] Pipe sleeve assembly is installed on base through threaded hole on base, middle of base is equipped with through hole, guarantee that the lead-out wire of pipe sleeve assembly can pass through, while lower part of base is equipped with hole, make the lead-out wire of pipe sleeve assembly pass out from hole and connect with multimeter;Base is equipped with spring mounting hole, spring is installed on base through the hole, support block is equipped with spring mounting hole, spring is connected with support block through the hole, float inner hole passes through pipe sleeve assembly outer wall, and directly contact with support block, pressing plate inner hole also passes through pipe sleeve assembly outer wall, and directly contact with upper end surface of float;In the case that downward force F is applied to pressing plate, force is transmitted to support block by float, so that support block moves vertically downward, when moving to a certain position, multimeter sends signal to indicate that it is connected, continue to press down pressing plate, while multimeter stops sending signal, under the action of spring force, pressing plate can be stabilized at the position, then the coordinate X that lower end surface of support block points to at this time is read, so as to complete the position measurement of float.
[0006] Specifically, the threaded hole is arranged on the contact surface of the base and the pipe sleeve assembly to fix the pipe sleeve assembly, and the size of the threaded hole is M8x0.75.
[0007] Specifically, the outer diameter of the lower end surface of the pressing plate is smaller than the inner diameter of the upper end of the float, and the diameter range is 14-19mm.
[0008] Specifically, the outer diameter of the upper end surface of the support block is smaller than the inner diameter of the lower end of the float, and the diameter range is 14-19mm;The maximum outer diameter of the support block should be smaller than the inner diameter of the protruding arc of the base;The bottom of the support block is provided with a spring mounting hole.
[0009] Specifically, the pressure plate 1 has a top annular surface. When a vertically downward force F is applied to the float position measuring device, the main force acting surface is the top annular surface. The central through hole of the pressure plate 1 and the outer circle of the sleeve assembly are in clearance fit.
[0010] Specifically, the base has a boss with a diameter ranging from 14 to 17 mm. The boss has a through hole in the middle and a spring mounting hole on the outside. The support block and the boss on the base are in clearance fit. The bottom of the base has a blind hole and four through holes around the blind hole.
[0011] Specifically, the raised arc on the base should be engraved with lines, and the initial position of the engraving lines should be 1.5mm higher than the upper surface of the raised platform on the base.
[0012] In summary, this utility model provides a float position measuring device. First, the sleeve assembly is screwed into the base, and the lead wire of the sleeve assembly is connected to a multimeter. Then, the float is mounted on the sleeve assembly, and finally, the pressure plate is mounted on the float. Subsequently, by manually applying a downward vertical force to the upper surface of the pressure plate using other equivalent equipment, the float slowly moves downward, completing the float position measurement. This device can accurately measure the float assembly position, effectively reducing the influence of human factors on float assembly position measurement and improving measurement accuracy. It solves the previous problem of being unable to measure float position, and the device is simple to implement and has a wide range of applications. Attached Figure Description
[0013] Fig. 1 This is a cross-sectional view of the present invention;
[0014] Fig. 2 This is a schematic diagram of the structure of this utility model;
[0015] The markings in the diagram are: 1-pressure plate, 2-tube sleeve assembly, 3-float, 4-base, 5-spring, 6-support block. Detailed Implementation
[0016] Example 1
[0017] like Figs. 1-2 As shown, this utility model provides a float position measuring device, including a pressure plate 1, a tube sleeve assembly 2, a float 3, a base 4, a spring 5, and a support block 6, wherein:
[0018] The pipe sleeve assembly 2 is installed on the base 4 through the threaded hole on the base 4, the middle of the base 4 is provided with a through hole to ensure that the lead-out wire of the pipe sleeve assembly 2 can pass through, and the lower part of the base 4 is provided with a hole to make the lead-out wire of the pipe sleeve assembly 2 pass through the hole and be connected with the multimeter; the base 4 is provided with a spring mounting hole, the spring is mounted on the base 4 through the hole, the supporting block 6 is provided with a spring mounting hole, the spring is connected with the supporting block 6 through the hole, the inner hole of the float 3 passes through the outer wall of the pipe sleeve assembly 2 and directly contacts the supporting block 6, and the inner hole of the pressing plate 1 also passes through the outer wall of the pipe sleeve assembly 2 and directly contacts the upper end surface of the float 3; in the case that the downward force F is applied to the pressing plate 1, the force is transmitted to the supporting block 6 through the float 3, the supporting block 6 moves vertically downward, when the supporting block 6 moves to a certain position, the multimeter sends a signal to indicate that the connection is established, the pressing plate 1 is continuously pressed downward, the pressing plate 1 is stopped to be pressed when the multimeter stops sending the signal, and the pressing plate 1 can be stably arranged at the position under the action of the spring force, then the coordinate X pointed to by the lower end surface of the supporting block 6 at the moment is read, and thus the position measurement of the float 3 is completed.
[0019] The utility model provides a kind of float position measuring device, first base 4 boss bottom is provided with spring mounting hole, supporting block 6 is installed on the boss of base 4, and it is connected with base by spring. Supporting block 6 bottom is provided with spring mounting hole, for spring installation, while spring provides support force for supporting block 6, guarantee the stability when supporting block 6 stops movement. The outer circular end surface of the bottom of supporting block 6 is tightly attached to the raised arc on base 4, to ensure the accuracy of the reading. The pipe sleeve assembly 2 should be installed on the base 4 through the threaded hole. The middle through hole of the float 3 passes through the pipe sleeve assembly 2 through clearance fit, and the lower end surface of the float 3 directly contacts the upper end surface of the supporting block 6. The middle through hole of the pressing plate 1 passes through the pipe sleeve assembly 2 through clearance fit, and the lower end surface of the pressing plate 1 directly contacts the upper end surface of the float 3.
[0020] Example two
[0021] The use process of the device is as follows:
[0022] First, install the spring on the base spring mounting hole;
[0023] Second, install the supporting block on the base through the boss on the base, and install the spring on the spring mounting hole at the bottom of the supporting block;
[0024] Screw the pipe sleeve assembly into the threaded hole on the boss of the base, make the lead-out wire pass through the center hole of the base, then pass through the through hole at the bottom of the base, and extend out of the through hole, connect the two lead-out wires of the pipe sleeve assembly with the multimeter, and adjust the multimeter to the buzzer range;
[0025] Finally, the float center hole is passed through the sleeve assembly, and the sleeve assembly is sleeved on the sleeve assembly, and then the pressing plate is sleeved on the sleeve assembly, so that the lower end surface of the pressing plate is tightly attached to the upper end surface of the float. Then, the pressing plate is pressed down by manpower or tools, so that the float moves vertically downward. During the downward movement of the float, the multimeter should be from silent to start beeping until the beeping ends. At the same time when the beeping ends, stop applying force downward, and the float remains stationary. At the same time, read the coordinates pointed to by the lower end surface of the support block, and complete the position measurement of the float. After the reading is completed, slowly release the hand or other tools, so that the float returns to its original position, and then the float and the sleeve assembly are disassembled, and subsequent pressing measurement of other floats is performed.
[0026] In a specific embodiment, the sleeve assembly 2 is screwed into the threaded hole on the boss of the base 4, so that the lead-out wire passes through the center hole of the base 4, and then the lead-out wire passes through the through hole at the bottom of the base 4 and extends out of the through hole. The two lead-out wires of the sleeve assembly 2 are connected using a multimeter, and the multimeter is adjusted to the beeping position. Then, the float 3 is sleeved on the sleeve assembly 2, and the pressing plate 1 is sleeved on the sleeve assembly 2. At this time, the pressing plate 1 should be able to stably rest on the float 3, and whether the connection is correct and whether there are missing parts are checked. Then, force is applied to the pressing plate 1, the float 3 moves downward to apply a vertical downward force to the support block 6, so that the support block 6 moves vertically downward. When the support block 6 moves to the corresponding position, stop applying force downward but keep applying a certain force to make the support block 6 stable and stationary, and the operator performs reading operation. After the reading is completed, the pressure is slowly reduced, so that the float 3 returns to its original position, and then the float 3 and the sleeve assembly 2 are disassembled, and subsequent pressing measurement of other floats 3 is performed.
Claims
1. A float position measuring device, characterized in that, The device includes a pressure plate (1), a sleeve assembly (2), a float (3), a base (4), a spring (5), and a support block (6); wherein: the sleeve assembly (2) is installed on the base (4) through a threaded hole on the base (4), the base (4) has a through hole in the middle to ensure that the lead wire of the sleeve assembly (2) can pass through, and the lower part of the base (4) has a hole so that the lead wire of the sleeve assembly (2) can pass through the hole and connect to the multimeter; the base (4) has a spring mounting hole, through which the spring is installed on the base (4), the support block (6) has a spring mounting hole, through which the spring is connected to the support block (6), the inner hole of the float (3) passes through the outer wall of the sleeve assembly (2) and directly contacts the support block (6), and the inner hole of the pressure plate (1) also passes through the outer wall of the sleeve assembly (2) and directly contacts the upper end face of the float (3).
2. The float position measuring device according to claim 1, characterized in that, The outer diameter of the upper end face of the support block (6) is smaller than the inner diameter of the lower end of the float (3), and its diameter range is 14-19mm; the diameter of the maximum outer circle of the support block (6) should be smaller than the inner diameter of the protruding arc of the base (4); the bottom of the support block (6) is provided with a spring mounting hole.
3. The float position measuring device according to claim 1, characterized in that, The pressure plate (1) has a top annular surface. When a vertically downward force F is applied to the float position measuring device, the main force action surface is the top annular surface.
4. The float position measuring device according to claim 1, characterized in that, The outer diameter of the lower end face of the pressure plate (1) is smaller than the inner diameter of the upper end of the float (3), and its diameter range is 14-19mm. The central through hole of the pressure plate (1) and the outer circle of the sleeve assembly (2) are in clearance fit.
5. The float position measuring device according to claim 1, characterized in that, The base (4) is provided with a boss with a diameter range of 14-17mm. The boss has a through hole in the middle and a spring mounting hole on the outside. The support block (6) and the boss on the base (4) are in clearance fit. The bottom of the base (4) is provided with a blind hole and four through holes around the blind hole.
6. The float position measuring device according to claim 1, characterized in that, The raised arc on the base (4) should be engraved with lines. The initial position of the engraving line is 1.5mm higher than the upper surface of the raised platform of the base (4).