Miniature multi-circle angle sensor

Abstract

The utility model discloses a miniature multi-circle angle sensor which comprises a mounting plate, a plurality of symmetrically arranged mounting holes are formed in the mounting plate, a bottom plate is arranged below the mounting plate, a sensor body is arranged at the lower end of the bottom plate, through grooves are formed in the upper end and the lower end of the mounting plate, a plurality of circumferentially arranged arc-shaped blocks are arranged in the through grooves, and the arc-shaped blocks are arranged in the through grooves. And grooves are formed in the opposite faces of the multiple arc-shaped blocks, the multiple grooves are matched with the bottom plate, an annular cavity is formed in the mounting plate, and multiple moving mechanisms used for moving the multiple arc-shaped blocks are arranged between the annular cavity and the through groove. According to the utility model, the plurality of pairs of fixing plates respectively push the plurality of arc-shaped blocks to move, so that the grooves in the plurality of arc-shaped blocks are in contact with the bottom plate, and the bottom plate is fixed in the plurality of grooves, thereby realizing the rapid installation of the sensor body, and bringing certain convenience for people to dismount and replace the sensor body in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a miniature multi-turn angle sensor. Background Art

[0002] An angle sensor is a sensor that senses the rotation angle of a shaft. It is a sensor element that can convert mechanical linear displacement or angular displacement input into a resistance or voltage output that has a certain functional relationship with it. In addition to being used for linear displacement and angular displacement measurement, it is also widely used to measure physical quantities such as pressure, acceleration, and liquid level.

[0003] In the prior art, the installation of a miniature multi-turn angle sensor is generally fixed by the cooperation of bolts and threaded holes at the installation location. When installing and disassembling the sensor, multiple bolts need to be operated in sequence, which is relatively complicated. After multiple twistings, thread slippage may occur between the threads and the threaded holes, resulting in unstable installation, which brings certain troubles to people. In addition, multiple bolts need to be operated in sequence, which reduces the overall linkage of the device and is not convenient for the promotion and use of the device. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art. By making multiple pairs of fixing plates respectively push multiple arc blocks to move, the grooves on the multiple arc blocks are all in contact with the bottom plate, and the bottom plate is fixed in the multiple grooves, so as to realize the rapid installation of the sensor body, bring certain convenience to people's later disassembly and replacement of the sensor body, and propose a miniature multi-turn angle sensor.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A miniature multi-turn angle sensor comprises a mounting plate, the mounting plate is provided with a plurality of symmetrically arranged mounting holes, a base plate is provided below the mounting plate, a sensor body is provided at the lower end of the base plate, through grooves are provided at the upper and lower ends of the mounting plate, a plurality of circumferentially arranged arc blocks are provided in the through grooves, the opposite surfaces of the plurality of arc blocks are provided with grooves, the plurality of grooves are matched with the base plate, an annular cavity is provided in the mounting plate, a plurality of moving mechanisms for moving the plurality of arc blocks are provided between the annular cavity and the through groove, and a driving mechanism for driving the plurality of moving mechanisms is provided between the two inner walls of the annular cavity.

[0007] Preferably, the moving mechanism includes a plurality of circumferentially arranged moving plates in the annular cavity, the side walls of the plurality of moving plates are each provided with two symmetrically arranged fixed plates, the plurality of pairs of the fixed plates penetrate the annular cavity and the inner wall of the through groove and are slidably connected thereto, and the ends of the plurality of pairs of the fixed plates located in the through groove are respectively connected to the side walls of the plurality of arc blocks.

[0008] Preferably, the driving mechanism comprises a plurality of circumferentially arranged threaded rods rotatably connected between two inner walls of the annular cavity, and the plurality of threaded rods respectively penetrate through a plurality of movable plates and are threadedly connected thereto.

[0009] Preferably, a bevel gear ring is provided in the annular cavity, and the bevel gear ring is rotatably connected to the inner wall of the annular cavity via a bearing, and the outer walls of the plurality of threaded rods are provided with bevel gears, and the plurality of bevel gears are meshed with the bevel gear ring.

[0010] Preferably, a hand wheel is rotatably connected through the annular cavity and the side wall of the mounting plate, and one end of the hand wheel located in the annular cavity is connected to the end of one of the threaded rods.

[0011] Preferably, the inner walls of the plurality of grooves are all smoothed, and the inner walls of the plurality of grooves are slidably connected to the upper and lower ends of the bottom plate.

[0012] Beneficial effects of the utility model:

[0013] 1. By making multiple pairs of fixing plates push multiple arc blocks to move respectively, the grooves on the multiple arc blocks are in contact with the bottom plate, and the bottom plate is fixed in the multiple grooves, so as to realize the rapid installation of the sensor body, which brings certain convenience to people's later disassembly and replacement of the sensor body.

[0014] 2. By setting threaded connections between multiple threaded rods and multiple moving plates, and meshing between multiple bevel gears and bevel gear rings, when the hand wheel is turned, multiple threaded rods can be rotated simultaneously, thereby improving the overall linkage of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic top view of the overall structure of the utility model;

[0016] Figure 2 It is a bottom view schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is a schematic cross-sectional view of the internal structure of the mounting plate of the utility model.

[0018] In the figure: 1 mounting plate, 2 mounting hole, 3 through groove, 4 fixing plate, 5 arc block, 6 groove, 7 hand wheel, 8 bottom plate, 9 sensor body, 10 annular cavity, 11 bearing, 12 bevel gear ring, 13 threaded rod, 14 moving plate, 15 bevel gear. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] Reference Figure 1-3 A miniature multi-turn angle sensor includes a mounting plate 1, a plurality of symmetrically arranged mounting holes 2 are provided on the mounting plate 1, a bottom plate 8 is provided below the mounting plate 1, a sensor body 9 is provided at the lower end of the bottom plate 8, through grooves 3 are provided at the upper and lower ends of the mounting plate 1, a plurality of circumferentially arranged arc blocks 5 are provided in the through grooves 3, the opposite surfaces of the plurality of arc blocks 5 are provided with grooves 6, the plurality of grooves 6 are matched with the bottom plate 8, an annular cavity 10 is provided in the mounting plate 1, a plurality of moving mechanisms for moving the plurality of arc blocks 5 are provided between the annular cavity 10 and the through groove 3, the moving mechanism includes a plurality of moving mechanisms arranged in the annular cavity 10 There are multiple circumferentially arranged movable plates 14, and the side walls of the multiple movable plates 14 are each provided with two symmetrically arranged fixed plates 4. The multiple pairs of fixed plates 4 all penetrate the annular cavity 10 and the inner wall of the through groove 3 and are slidably connected thereto. The ends of the multiple pairs of fixed plates 4 located in the through groove 3 are respectively connected to the side walls of the multiple arc blocks 5. By making the multiple pairs of fixed plates 4 push the multiple arc blocks 5 to move respectively, the grooves 6 on the multiple arc blocks 5 are all in contact with the bottom plate 8, so that the bottom plate 8 is fixed in the multiple grooves 6, thereby realizing the rapid installation of the sensor body 9, which brings certain convenience to people's later disassembly and replacement of the sensor body 9.

[0022] A driving mechanism for driving multiple moving mechanisms is provided between the two inner walls of the annular cavity 10. The driving mechanism includes multiple circumferentially arranged threaded rods 13 rotatably connected between the two inner walls of the annular cavity 10. The multiple threaded rods 13 respectively penetrate multiple moving plates 14 and are threadedly connected thereto.

[0023] A bevel gear ring 12 is provided in the annular cavity 10 , and the bevel gear ring 12 is rotatably connected to the inner wall of the annular cavity 10 via a bearing 11 . Bevel gears 15 are provided on the outer walls of the plurality of threaded rods 13 , and the plurality of bevel gears 15 are meshed with the bevel gear ring 12 .

[0024] A handwheel 7 is rotatably connected to the annular cavity 10 and the side wall of the mounting plate 1. One end of the handwheel 7 located in the annular cavity 10 is connected to the end of one of the threaded rods 13. By setting threaded connections between multiple threaded rods 13 and multiple movable plates 14, and meshing between multiple bevel gears 15 and the bevel gear ring 12, when the handwheel 7 is rotated, multiple threaded rods 13 can be rotated simultaneously, thereby improving the overall linkage of the device.

[0025] The inner walls of the multiple grooves 6 are all smoothed and slidably connected to the upper and lower ends of the base plate 8, so that the upper and lower ends of the base plate 8 are in precise contact with the upper and lower inner walls of the grooves 6, thereby improving the stability of the installation and reducing the shaking of the sensor body 9.

[0026] When the utility model is used, when the sensor body 9 is installed, the mounting plate 1 is fixed to the place to be installed through the cooperation of the multiple mounting holes 2 and the bolts (the cooperation of the mounting holes 2 and the bolts is the prior art, so the related structure is not described in detail in the attached drawings), and then the bottom plate 8 on the sensor body 9 is extended into the through groove 3, so that the bottom plate 8 and the multiple grooves 6 are on the same horizontal plane, and the hand wheel 7 is turned to drive one of the threaded rods 13 to rotate, so that the bevel gear 15 on the outer wall thereof rotates, and the meshing between the multiple bevel gears 15 and the bevel gear ring 12, and the bearing 1 between the bevel gear ring 12 and the inner wall of the annular cavity 10 are used. 1, the bevel gear ring 12 rotates to drive the multiple bevel gears 15 to rotate, so that the multiple threaded rods 13 rotate at the same time, and then the threaded connection between the multiple threaded rods 13 and the multiple moving plates 14 is used to make the multiple moving plates 14 move on the outer walls of the multiple threaded rods 13 respectively, so that the multiple moving plates 14 push the multiple pairs of fixed plates 4 to move, and the multiple pairs of fixed plates 4 push the multiple arc blocks 5 to move respectively, so that the grooves 6 on the multiple arc blocks 5 are all in contact with the bottom plate 8, so that the bottom plate 8 is fixed in the multiple grooves 6, so as to realize the rapid installation of the sensor body 9, which brings certain convenience for people to disassemble and replace the sensor body 9 in the later stage.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A miniature multi-turn angle sensor, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with a plurality of symmetrically arranged mounting holes (2); a bottom plate (8) is provided below the mounting plate (1); a sensor body (9) is provided at the lower end of the bottom plate (8); a through groove (3) is provided at the upper and lower ends of the mounting plate (1); a plurality of circumferentially arranged arc blocks (5) are provided in the through groove (3); grooves (6) are provided on the opposite surfaces of the plurality of arc blocks (5); the plurality of grooves (6) are matched with the bottom plate (8); an annular cavity (10) is provided in the mounting plate (1); a plurality of moving mechanisms for moving the plurality of arc blocks (5) are provided between the annular cavity (10) and the through groove (3); a driving mechanism for driving the plurality of moving mechanisms is provided between the two inner walls of the annular cavity (10).

2. A miniature multi-turn angle sensor according to claim 1, characterized in that: The moving mechanism comprises a plurality of circumferentially arranged moving plates (14) arranged in the annular cavity (10), the side walls of the plurality of moving plates (14) being each provided with two symmetrically arranged fixing plates (4), the plurality of pairs of fixing plates (4) penetrating the annular cavity (10) and the inner wall of the through groove (3) and being slidably connected thereto, and the ends of the plurality of pairs of fixing plates (4) located in the through groove (3) being respectively connected to the side walls of the plurality of arc-shaped blocks (5).

3. A miniature multi-turn angle sensor according to claim 2, characterized in that: The driving mechanism comprises a plurality of circumferentially arranged threaded rods (13) rotatably connected between two inner walls of the annular cavity (10), and the plurality of threaded rods (13) respectively penetrate through a plurality of movable plates (14) and are threadedly connected thereto.

4. A miniature multi-turn angle sensor according to claim 3, characterized in that: A bevel gear ring (12) is provided in the annular cavity (10), and the bevel gear ring (12) is rotatably connected to the inner wall of the annular cavity (10) via a bearing (11); bevel gears (15) are provided on the outer walls of the plurality of threaded rods (13), and the plurality of bevel gears (15) are meshed with the bevel gear ring (12).

5. A miniature multi-turn angle sensor according to claim 4, characterized in that: A hand wheel (7) is rotatably connected to the annular cavity (10) and the side wall of the mounting plate (1); one end of the hand wheel (7) located in the annular cavity (10) is connected to the end of one of the threaded rods (13).

6. A miniature multi-turn angle sensor according to claim 5, characterized in that: The inner walls of the plurality of grooves (6) are all smoothed, and the inner walls of the plurality of grooves (6) are all slidably connected to the upper and lower ends of the bottom plate (8).

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