Hall type linear displacement structure

Abstract

The utility model relates to the field of sensors, and discloses a Hall type linear displacement structure which comprises a mounting seat, the mounting seat is detachably arranged on the rear side of the outer wall of a shell, two connecting holes are formed in the front side of the outer wall of the shell, two Hall pieces are movably arranged in the shell, and the Hall pieces are arranged in the shell. A sliding pipe is slidably inserted into the connecting pipe, an adjusting rod is slidably inserted into the sliding pipe, limiting grooves are formed in the left side and the right side of the inner wall of the connecting pipe respectively, limiting rods are fixed to the left side and the right side of the outer wall of the sliding pipe respectively, and the two limiting rods are slidably arranged in the two limiting grooves respectively. According to the utility model, the sliding tube can be limited, so that the sliding tube and the Hall piece can be prevented from deviating or rotating during movement, the Hall piece can slide in parallel, the stability of the Hall piece during sliding can be improved, and the accuracy and reliability of the sensor can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a Hall type linear displacement structure. Background Art

[0002] The function of the linear displacement sensor is to convert the linear mechanical displacement into an electrical signal. In order to achieve this effect, the variable resistor slide is usually fixed at the fixed position of the sensor, and different resistance values ​​are measured by the displacement of the slider on the slide. The sensor slide is connected to a steady-state DC voltage, allowing a small current of microamperes to flow. The voltage between the slider and the starting end is proportional to the length of the slider movement. Using the sensor as a voltage divider can minimize the requirements for the accuracy of the total resistance of the slide, because the resistance change caused by temperature changes will not affect the measurement results. The measurement principle of the Hall displacement sensor is to keep the excitation current of the Hall element unchanged and make it move in a magnetic field with a uniform gradient. The displacement is proportional to the output Hall potential.

[0003] According to the Chinese patent with announcement number: CN218270566U, a Hall type linear displacement structure includes a shell, characterized in that: a connecting hole is opened on the side of the shell, a connecting pipe is fixedly installed on one side of the shell, a vent hole is opened on the side of the connecting pipe, a connecting groove is opened on the side of the connecting pipe, a sliding tube is slidably installed inside the connecting groove, a plug-in hole is opened on the side of the sliding tube, an adjustment rod is plugged into the inside of the plug-in hole, a Hall plate is fixedly installed on the outer edge of the adjustment rod, and a fixing hole is opened on the other side of the shell.

[0004] In the above scheme, the sliding tube and the Hall plate can be moved to the end away from the shell by pulling the adjustment rod, resulting in the following disadvantages: when the Hall-type linear displacement structure is in use, the sliding tube cannot be limited, so that the Hall plate may be offset or rotated when sliding, resulting in reduced accuracy and reliability of the sensor. Utility Model Content

[0005] The purpose of the utility model is to provide a Hall type linear displacement structure to solve the problem that the Hall type linear displacement structure cannot limit the sliding tube when in use, so that the Hall plate may deviate or rotate when sliding, resulting in reduced accuracy and reliability of the sensor.

[0006] In order to achieve the above-mentioned utility model objectives, the utility model adopts the following technical solutions: a Hall-type linear displacement structure, including a mounting seat, the mounting seat is detachably arranged on the rear side of the outer wall of the shell, the front side of the outer wall of the shell is provided with two connecting holes, two Hall plates are movably arranged inside the shell, a connecting tube is fixed on the front side of the outer wall of the shell, a sliding tube is slidably inserted into the interior of the connecting tube, the sliding tube passes through the connecting tube and extends into the shell, the rear end of the sliding tube is fixedly connected to the front side of the outer wall of the front Hall plate, an adjusting rod is slidably inserted into the interior of the sliding tube, the adjusting rod passes through the sliding tube and extends into the two Hall plates, the outer wall of the adjusting rod is fixedly connected to the inside of the two Hall plates, limiting grooves are respectively provided on the left and right sides of the inner wall of the connecting tube, limiting rods are respectively fixed on the left and right sides of the outer wall of the sliding tube, and the two limiting rods are respectively slidably arranged in the two limiting grooves.

[0007] Preferably, a plurality of fixed plates are fixed to the top and bottom surfaces of the sliding tube, two of the fixed plates form a group, a roller is rotatably arranged between the two fixed plates, and movable grooves are respectively provided on the inner top and bottom surfaces of the connecting tube, and the two rollers are movably arranged in the two movable grooves.

[0008] Preferably, a plurality of air holes are provided at the front end of the connecting pipe.

[0009] Preferably, dustproof nets are respectively fixed inside the plurality of air holes.

[0010] Preferably, two clamping holes are provided on the front side of the outer wall of the mounting seat, and two clamping blocks are fixed on the rear side of the outer wall of the shell, and the two clamping blocks are respectively detachably clamped in the two clamping holes.

[0011] Preferably, the shapes of the plurality of dustproof nets are all arc-shaped.

[0012] Compared with the prior art, a Hall type linear displacement structure using the above technical solution has the following beneficial effects:

[0013] 1. During use, the limit groove and the limit rod are used to limit the sliding tube, thereby preventing the sliding tube and the Hall plate from deflecting or rotating when moving, so that the Hall plate can maintain parallel sliding, which is beneficial to improving the stability of the Hall plate when sliding, thereby improving the accuracy and reliability of the sensor;

[0014] 2. During use, the fixing plate and rollers can reduce frictional resistance when the slide tube and the Hall plate slide in parallel, making the slide tube and the Hall plate slide more smoothly in parallel, and further improving the stability of the slide tube and the Hall plate, ensuring that they remain parallel during movement. The air vents can help the heat generated by the entire device to be dissipated through the air vents, preventing overheating, thereby improving the working efficiency and stability of the entire device;

[0015] 3. During use, the dustproof net helps to block dust and other impurities, reduces the risk of dust erosion and damage to the Hall plate, and improves the stability and reliability of the device. The clamping holes and clamping blocks help the staff to disassemble and assemble the mounting base and the shell, making disassembly and assembly more convenient, so as to facilitate maintenance or replacement by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 It is an exploded schematic diagram of an embodiment.

[0018] Figure 3 It is an exploded schematic diagram of the connecting pipe and the sliding pipe in the embodiment.

[0019] Figure 4 For example Figure 2 Enlarged schematic diagram at point A in the middle.

[0020] In the figure: 1. mounting base; 2. housing; 3. connecting hole; 4. Hall plate; 5. connecting tube; 6. sliding tube; 7. adjusting rod; 8. limiting groove; 9. limiting rod; 10. fixing plate; 11. roller; 12. movable groove; 13. air vent; 14. dustproof net; 15. snap-in hole; 16. snap-in block. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-Figure 4As shown, a Hall type linear displacement structure comprises a mounting seat 1, which is detachably arranged on the rear side of the outer wall of a shell body 2, and two connecting holes 3 are provided on the front side of the outer wall of the shell body 2, and two Hall plates 4 are movably provided inside the shell body 2, and a connecting tube 5 is fixed on the front side of the outer wall of the shell body 2, and a sliding tube 6 is slidably inserted inside the connecting tube 5, and the sliding tube 6 passes through the connecting tube 5 and extends into the shell body 2, and the rear end of the sliding tube 6 is fixedly connected to the front side of the outer wall of the front Hall plate 4, and an adjusting rod 7 is slidably inserted inside the sliding tube 6, and the adjusting rod 7 passes through the sliding tube 6 and extends into the two Hall plates 4, and the outer wall of the adjusting rod 7 is fixedly connected to the inside of the two Hall plates 4, and limiting grooves 8 are respectively provided on the left and right sides of the inner wall of the connecting tube 5, and limiting rods 9 are fixed on the left and right sides of the outer wall of the sliding tube 6, and the two limiting rods 9 are respectively slidably arranged in the two limiting grooves 8.

[0023] During use, the adjusting rod 7 can drive the Hall plate 4 to move its position inside the shell 2. The adjusting rod 7 is fixedly connected to the inner walls of the two Hall plates 4, which can keep the position between the two Hall plates 4 unchanged, and is conducive to adjusting the magnitude of the electric potential by adjusting the position. At the same time, when the two Hall plates 4, the sliding tube 6 and the adjusting rod 7 move, the sliding tube 6 can be limited by the limiting groove 8 and the limiting rod 9, thereby preventing the sliding tube 6 and the Hall plate 4 from deflecting or rotating when moving, so that the Hall plate 4 can maintain parallel sliding, which is conducive to improving the stability of the Hall plate 4 when sliding, thereby improving the accuracy and reliability of the sensor.

[0024] like Figure 1-Figure 4 As shown, a plurality of fixed plates 10 are fixed to the top and bottom surfaces of the sliding tube 6, two of which form a group, and a roller 11 is rotatably arranged between the two fixed plates 10. Movable grooves 12 are respectively provided on the inner top and bottom surfaces of the connecting tube 5, and two rollers 11 are movably arranged in the two movable grooves 12.

[0025] During use, the fixing plate 10 and the roller 11 help reduce the friction resistance of the sliding tube 6 and the Hall plate 4 when they slide in parallel, which helps the sliding tube 6 and the Hall plate 4 to slide in parallel more smoothly, and at the same time helps to further improve the stability of the sliding tube 6 and the Hall plate 4, ensuring that they remain parallel during movement.

[0026] like Figure 1-Figure 3 As shown, a plurality of air holes 13 are formed at the front end of the connecting pipe 5 , and dustproof nets 14 are respectively fixed inside the plurality of air holes 13 .

[0027] In use, the heat generated by the whole device can be dissipated through the air holes 13, which is conducive to preventing overheating, thereby improving the working efficiency and stability of the whole device. The dustproof net 14 is conducive to blocking impurities such as dust, which is conducive to reducing the risk of dust erosion and damage to the Hall plate 4, and is conducive to improving the stability and reliability of the device.

[0028] like Figure 1-Figure 3 As shown, two snap-in holes 15 are provided on the front side of the outer wall of the mounting base 1, and two snap-in blocks 16 are fixed on the rear side of the outer wall of the shell 2. The two snap-in blocks 16 are detachably snap-into the two snap-in holes 15, respectively, and the shapes of the several dustproof nets 14 are all arc-shaped.

[0029] During use, the clamping holes 15 and the clamping blocks 16 facilitate the staff to disassemble and assemble the mounting base 1 and the housing 2, making the disassembly and assembly more convenient, thereby facilitating maintenance or replacement by the staff.

[0030] 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 Hall type linear displacement structure, comprising a mounting seat (1), wherein the mounting seat (1) is detachably arranged on the rear side of the outer wall of a housing (2), characterized in that: Two connecting holes (3) are provided on the front side of the outer wall of the shell (2); two Hall plates (4) are movably arranged inside the shell (2); a connecting tube (5) is fixed on the front side of the outer wall of the shell (2); a sliding tube (6) is slidably inserted inside the connecting tube (5); the sliding tube (6) passes through the connecting tube (5) and extends into the shell (2); the rear end of the sliding tube (6) is fixedly connected to the front side of the outer wall of the front Hall plate (4); an adjusting rod (7) is slidably inserted inside the sliding tube (6); the adjusting rod (7) passes through the sliding tube (6) and extends into the two Hall plates (4); the outer wall of the adjusting rod (7) is fixedly connected to the inside of the two Hall plates (4); the left and right sides of the inner wall of the connecting tube (5) are respectively provided with limiting grooves (8); the left and right sides of the outer wall of the sliding tube (6) are respectively fixed with limiting rods (9); the two limiting rods (9) are slidably arranged in the two limiting grooves (8).

2. A Hall type linear displacement structure according to claim 1, characterized in that: A plurality of fixing plates (10) are fixed to the top and bottom surfaces of the sliding tube (6), two of the fixing plates (10) form a group, a roller (11) is rotatably arranged between the two fixing plates (10), and movable grooves (12) are respectively provided on the top and bottom surfaces of the interior of the connecting tube (5), and the two rollers (11) are movably arranged in the two movable grooves (12).

3. A Hall type linear displacement structure according to claim 1, characterized in that: The front end of the connecting pipe (5) is provided with a plurality of air holes (13).

4. A Hall type linear displacement structure according to claim 3, characterized in that: Dust-proof nets (14) are respectively fixed inside the plurality of air holes (13).

5. The Hall type linear displacement structure according to claim 1, characterized in that: Two clamping holes (15) are provided on the front side of the outer wall of the mounting seat (1), and two clamping blocks (16) are fixed on the rear side of the outer wall of the shell (2). The two clamping blocks (16) are respectively detachably clamped in the two clamping holes (15).

6. A Hall type linear displacement structure according to claim 4, characterized in that: The shapes of the plurality of dustproof nets (14) are all arc-shaped.

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