Cylindrical capacitive sensor holder

Abstract

The utility model relates to the technical field of capacitor sensor clamping device, specifically discloses a cylindrical capacitor sensor clamping device, including clamping device main part, two clamping columns are equipped with on clamping device main part upper portion, two clamping columns are symmetric distribution, the transmission mechanism is equipped with in clamping device main part, and the transmission mechanism drives two clamping columns synchronous closing, and the outside of clamping column is equipped with reset spring, and reset spring controls clamping column reset when ending extruding clamping column in transmission mechanism, this cylindrical capacitor sensor clamping device, through the linkage control of the structural design and transmission mechanism of clamping column symmetric distribution, has realized the effect that uniform stress in clamping process, synchronous clamping, avoided the sensor position deviation problem that the round hole held tightly led to.

Description

Technical Field

[0001] This utility model relates to the technical field of capacitive sensor clamping devices, specifically a cylindrical capacitive sensor clamping device. Background Technology

[0002] Capacitive nanodisplacement sensors are non-contact measuring instruments capable of high-resolution measurement of the position and position changes of any conductive target. The principle of capacitive nanodisplacement sensors is to convert the motion displacement of an object into a measurable voltage signal. They are typically used to convert physical quantities such as displacement, position, deformation, vibration, and size, which are difficult to quantitatively detect and process, into electrical quantities that are easy to quantitatively detect and process.

[0003] Most existing capacitive sensors on the market are cylindrical in shape. When installing these sensors, they are typically fixed and clamped using set screws. However, the fixing principle of set screws is point contact, which can cause positional misalignment during fixing, easily damaging the capacitive sensor. Secondly, clamping often uses circular holes for gripping, which can cause deformation of the capacitive sensor probe during clamping, leading to reduced reliability, lifespan, or even damage to the sensor. Therefore, we propose a cylindrical capacitive sensor clamping device. Utility Model Content

[0004] The purpose of this invention is to provide a cylindrical capacitive sensor clamping device to solve the problems mentioned in the background art, such as positional displacement during fixing, easy damage to the capacitive sensor, and the fact that most clamping methods use circular holes for clamping, which can cause deformation of the capacitive sensor probe during clamping.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cylindrical capacitive sensor clamping device, comprising: a clamping device body, two clamping posts on the upper part of the clamping device body, the two clamping posts being symmetrically distributed, a transmission mechanism inside the clamping device body, the transmission mechanism driving the two clamping posts to move closer together synchronously, and a return spring on the outer side of the clamping posts, the return spring driving the clamping posts to move to the initial position through a preload.

[0006] The transmission mechanism includes a screw hole at the bottom of the clamping device body, a stud threaded into the screw hole, a tapered nut fixedly connected to the end of the stud, two straight sliding grooves at the bottom of the clamping device body, a push rod slidably connected inside the straight sliding grooves, a limit groove in the middle section of the push rod, a compression spring fixedly connected to the edge of the limit groove, a limit rod fixedly connected to the compression spring, the limit rod fixedly connected to the bottom of the clamping device body, a pressing rod slidably connected to the end of the push rod, a movable groove in the middle section of the pressing rod, a fixed post slidably connected inside the movable groove, the fixed post fixedly connected to the side of the clamping device body, and a clamping mechanism at the end of the pressing rod.

[0007] The clamping mechanism includes a push rear cover that is slidably connected to the pressing rod, the push rear cover being fixedly connected to the clamping column, the inner edge of the push rear cover being fixedly connected to a return spring, the return spring being fixedly connected to a sliding outer shell, and the interior of the sliding outer shell being slidably connected to the clamping column.

[0008] The bottom of the pressing rod is provided with an arc transition section.

[0009] The clamping column has an elastic buffer pad at its end.

[0010] The sliding outer shell surface is equipped with quick-release screws.

[0011] This utility model has at least the following beneficial effects:

[0012] In use, this invention achieves uniform force distribution and synchronous clamping through the symmetrical distribution of clamping columns and the linkage control of the transmission mechanism. This avoids sensor position displacement caused by clamping through the circular hole. During the clamping action, the threaded transmission of the conical nut and stud, combined with the guiding effect of the linear slide, controls the clamping force. At the same time, the buffering mechanism of the limiting groove and the compression spring can dynamically adjust the clamping pressure to prevent the probe from deforming due to excessive clamping. The synergistic effect of the return spring and the sliding shell automatically releases excess pressure after clamping, further protecting the sensor probe from continuous stress. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the transmission mechanism of this utility model;

[0015] Figure 3 This is an internal view of the transmission mechanism of this utility model;

[0016] Figure 4 This is a schematic diagram of the clamping mechanism of this utility model;

[0017] Figure 5 This is an internal top view of the present invention.

[0018] In the diagram: 1. Clamping device body; 2. Transmission mechanism; 21. Screw hole; 22. Screw stud; 23. Tapered nut; 24. Straight groove; 25. Push rod; 26. Limiting groove; 27. Limiting rod; 28. Compression spring; 29. ​​Fixed post; 210. Movable groove; 211. Pressing rod; 3. Clamping mechanism; 31. Pushing back cover; 32. Clamping post; 33. Sliding outer shell; 34. Return spring; 4. Arc transition part; 5. Elastic buffer pad; 6. Quick release screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] Please see Figures 1 to 5 This utility model provides a technical solution: a cylindrical capacitive sensor clamping device, comprising: a clamping device body 1, two clamping posts 32 are provided on the upper part of the clamping device body 1, the two clamping posts 32 are symmetrically distributed, a transmission mechanism 2 is provided inside the clamping device body, the transmission mechanism 2 drives the two clamping posts 32 to move closer synchronously, and a return spring 34 is provided on the outside of the clamping posts 32, the return spring 34 controls the clamping posts 32 to return to their original position when the transmission mechanism ends the squeezing of the clamping posts.

[0022] The transmission mechanism 2 includes a screw hole 21 at the bottom of the clamping device body 1, with a stud 22 threaded into the screw hole 21. A conical nut 23 is fixedly connected to the end of the stud 22. When the stud 22 is rotated in the forward direction to move inward, the conical nut 23 moves inward accordingly, and its conical surface pushes the push rods 25 on both sides to move outward. Two straight slide grooves 24 are provided at the bottom of the clamping device body 1. Push rods 25 are slidably connected inside the straight slide grooves 24. A limit groove 26 is provided in the middle section of the push rod 25. A compression spring 28 is fixedly connected to the edge of the limit groove 26. A limit rod 27 is fixedly connected to the compression spring 28 and fixedly connected to the bottom of the clamping device body 1. During the outward movement of the push rod 25, the limit groove 26 compresses the compression spring 28, pushing the push rod 25 outward. A pressing rod 211 is slidably connected to the end of the rod 25. The end of the pushing rod 25 is wedge-shaped. When the pushing rod 25 moves outward, it squeezes the pressing rod 211 to move upward. A movable groove 210 is opened in the middle section of the pressing rod 211. A fixed column 29 is slidably connected inside the movable groove 210. The fixed column 29 is fixedly connected to the side of the clamping device body 1. Under the drive of the pushing rod 25, the pressing rod 211 moves with the sliding connection point between its movable groove 210 and the fixed column 29 as the fulcrum, so that its end moves upward away from the pushing rod 25. A clamping mechanism 3 is slidably connected to the end of the pressing rod 211.

[0023] The clamping mechanism 3 includes a push-back cover 31 slidably connected to the end of the pressure rod 211. When the end of the pressure rod 211 moves upward, it pushes the push-back cover 31, which is in contact with it, to move inward. The push-back cover 31 is fixedly connected to a clamping post 32. Therefore, when the push-back cover 31 moves inward, it directly drives the clamping post 32 to move closer to the capacitive sensor at the center position for clamping. A return spring 34 is fixedly connected to the inner edge of the push-back cover 31. The return spring 34 is fixedly connected to a sliding outer shell 33. While the push-back cover 31 moves inward to clamp the capacitive sensor, the return spring 34 is compressed. The interior of the sliding outer shell 33 is slidably connected to the clamping post 32 to ensure that the clamping post 32 moves linearly. When it is necessary to release, the stud 22 is rotated in the opposite direction to move it outward, and the conical nut 23 moves outward, relieving the pressure on the push rod 25. At this time, the compression spring 28 on the push rod 25 releases its elastic force, pushing the push rod 25 to move inward along the linear slide groove 24 to reset. The reset of the push rod 25 drives the pressure rod 211 to move in the opposite direction, so that its end moves downward and outward. At the same time, the reset spring 34 in the clamping mechanism 3 releases its elastic force, together pushing the rear cover 31 and the clamping post 32 to move outward, thereby simultaneously releasing the clamping of the capacitive sensor. Throughout the process, the transmission mechanism 2 precisely controls the synchronous opening and closing of the clamping mechanisms 3 on both sides, effectively preventing positional deviation and sensor deformation.

[0024] Example 2

[0025] In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that the bottom of the pressing rod 211 is provided with an arc transition part 4, which reduces the frictional resistance between the pressing rod 211 and the pushing rod 25, making the movement smoother and reducing wear. The end of the clamping column 32 is provided with an elastic buffer pad 5. The elastic buffer pad 5 directly contacts the surface of the capacitive sensor during clamping, providing flexible contact and preventing the sensor surface from being scratched or the sensitive element inside the probe from being deformed due to excessive clamping force. The surface of the sliding housing 33 is provided with quick-release screws 6, which facilitates quick disassembly and replacement of the clamping column 32 and improves the maintenance convenience of the device.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cylindrical capacitive sensor clamping device, comprising: The clamping device body is characterized in that: two clamping columns are provided on the upper part of the clamping device body, the two clamping columns are symmetrically distributed, a transmission mechanism is provided inside the clamping device body, the transmission mechanism drives the two clamping columns to move closer to each other synchronously, and a return spring is provided on the outside of the clamping column, the return spring drives the clamping column to move to the initial position through pre-tightening force.

2. The cylindrical capacitive sensor clamping device according to claim 1, characterized in that: The transmission mechanism includes a threaded hole at the bottom of the clamping device body, a stud threaded into the threaded hole, a tapered nut fixedly connected to the end of the stud, two straight sliding grooves at the bottom of the clamping device body, a push rod slidably connected inside the straight sliding grooves, a limit groove in the middle section of the push rod, a compression spring fixedly connected to the edge of the limit groove, a limit rod fixedly connected to the compression spring, the limit rod fixedly connected to the bottom of the clamping device body, a pressing rod slidably connected to the end of the push rod, a movable groove in the middle section of the pressing rod, a fixed post slidably connected inside the movable groove, the fixed post fixedly connected to the side of the clamping device body, and a clamping mechanism at the end of the pressing rod.

3. The cylindrical capacitive sensor clamping device according to claim 2, characterized in that: The clamping mechanism includes a push-back cover slidably connected to the pressing rod, the push-back cover being fixedly connected to the clamping column, the inner edge of the push-back cover being fixedly connected to a return spring, the return spring being fixedly connected to a sliding outer shell, and the interior of the sliding outer shell being slidably connected to the clamping column.

4. The cylindrical capacitive sensor clamping device according to claim 2, characterized in that: The bottom of the pressure rod is provided with an arc transition section.

5. The cylindrical capacitive sensor clamping device according to claim 3, characterized in that: The end of the clamping column is provided with an elastic buffer pad.

6. The cylindrical capacitive sensor clamping device according to claim 3, characterized in that: The sliding housing surface is provided with quick-release screws.

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