Capacitive non-contact liquid level sensor

Abstract

The utility model relates to the technical field of non-contact liquid level sensors, in particular to a capacitive non-contact liquid level sensor which comprises a sensor body, a mounting frame and a pipe clamp, a mounting mechanism is arranged on the front face of the mounting frame, and the front face of the mounting frame is movably mounted on the sensor body through the mounting mechanism. Connecting mechanisms are symmetrically arranged on the back face of the mounting frame, a bottom shell is fixedly mounted on the outer side of the pipe clamp, and clamping holes are symmetrically formed in the inner side of the bottom shell. When the detection position of the sensor main body needs to be adjusted, the sensor main body and the mounting frame do not need to be disassembled, only the adjusting shell needs to be pulled to slide in the adjusting groove in the mounting frame, and then after the sensor main body is adjusted to a designated position, the adjusting bolt on the right half part of the adjusting shell rotates; the threaded end of the adjusting bolt abuts against the adjusting groove in the right half portion of the mounting frame, and therefore the capacitive non-contact liquid level sensor can be conveniently adjusted and used.

Description

Technical Field

[0001] The utility model relates to the technical field of non-contact liquid level sensors, in particular to a capacitive non-contact liquid level sensor. Background Art

[0002] The capacitive non-contact liquid level sensor is a high-precision, high-sensitivity liquid level detection device. Its main feature is that it does not require direct contact with the liquid, and determines the liquid level by sensing the change in the dielectric constant of the liquid. The capacitive non-contact liquid level sensor has many advantages. It has high sensitivity and can respond to tiny changes in the liquid level to provide accurate liquid level data. At the same time, since there is no need for direct contact with the liquid, corrosion and damage to the sensor by the liquid is avoided, extending the service life. In addition, the sensor is also suitable for a variety of liquids and scenarios, such as industrial fields such as chemicals, petroleum, and food, as well as public utilities such as water treatment and environmental protection.

[0003] The Chinese patent with announcement number CN213576677U discloses a capacitive non-contact liquid level sensor, including a sensor body and a fixed bracket arranged at the lower end of the sensor body, the sensor body is connected to the wiring plug through a wire, the sensor body and the fixed bracket are slidably connected, a limit plate is fixedly arranged on the fixed bracket, the limit plate is located above the sensor body, a limit device is arranged inside the limit plate, the sensor body is provided with a plurality of limit holes at positions corresponding to the limit device, the limit device includes a limit rod, the limit rod is arranged inside the limit plate and extends into the limit hole, a support block is fixedly arranged on the upper end of the limit rod, a connecting rod is fixedly connected to the upper end of the support block, a reset spring is fixedly arranged between the support block and the limit plate, the upper end of the connecting rod passes through the limit plate and is fixedly connected to the boss, a fixing ring is arranged at one end of the sensor body, a fixing belt is arranged at the other end of the sensor body, a Velcro hook surface is arranged at the head of the fixing belt, and a Velcro fur surface is arranged in the middle of the fixing belt. This sensor often does not have a functional structure of non-disassembly adjustment after installation and fixing;

[0004] The pipe clamp type pipeline-specific non-contact liquid level sensor disclosed with announcement number CN306962669S is specially used for pipeline container installation. However, due to its integrated structural performance, the sensor cannot be used when the pipe clamp position does not meet the installation conditions or the pipe clamp is broken or damaged.

[0005] During the actual use of the capacitive non-contact liquid level sensor in the above-mentioned prior art, we found that there are still some shortcomings. For example, the traditional capacitive non-contact liquid level sensor is installed on a fixed bracket, and the fixed bracket is installed and fixed to the installation position through the inner mounting hole. However, this traditional installation method requires the entire fixed bracket to be disassembled when the sensing position of the liquid level sensor needs to be adjusted, and then it must be installed again at the designated adjustment point, which is very inconvenient. Secondly, this traditional non-contact liquid level sensor is not suitable for installation on pipe containers. Of course, there are already liquid level sensors with pipe clamps on the market, and the pipe clamps on this type of sensor are generally integrated with the sensor. Therefore, it can only be installed for pipe containers of one caliber. When it is installed for pipe containers of other calibers, it is not applicable. It can only be used together with the entire sensor. This is undoubtedly a waste. Utility Model Content

[0006] The purpose of the utility model is to provide a capacitive non-contact liquid level sensor to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides a capacitive non-contact liquid level sensor, including a sensor body, a mounting frame and a pipe clamp, a mounting mechanism is provided on the front of the mounting frame, the front of the mounting frame is movably mounted through the mounting mechanism and the sensor body, a connecting mechanism is symmetrically provided on the back of the mounting frame, a bottom shell is fixedly installed on the outer side of the pipe clamp, a clamping hole is symmetrically opened on the inner side of the bottom shell, the bottom shell is clamped and connected with the connecting mechanism through the clamping hole, an opening mechanism is provided on the outer side of the mounting frame, and the opening mechanism and the mounting mechanism are movably connected;

[0008] The mounting mechanism comprises an adjusting slot, the adjusting slot is symmetrically arranged on the outer side of the mounting frame, the inner side of the adjusting slot is slidably connected with the same adjusting shell, the right side of the adjusting shell is threadedly connected with an adjusting bolt, the threaded end of the adjusting bolt passes through the shell wall of the adjusting shell and abuts against the adjusting slot of the right half of the mounting frame, the front side of the adjusting shell is arranged with a positioning slot, the sensor body is inserted into the inner side of the positioning slot, the front side of the adjusting shell is slidably connected with a moving frame, the moving frame is slidably connected with a clamping block on the side facing the sensor body, the inner side of the moving frame is threadedly connected with a stud, one end of the stud is fixedly installed with a rotating handle, the other end of the stud is rotatably connected with the clamping block, and the end of the clamping block away from the stud abuts against the sensor body, and the sensor body can be installed and adjusted on the mounting frame through the mounting mechanism;

[0009] The opening mechanism includes a convex groove, which is symmetrically arranged on the outside of the mounting frame, a push plate is slidably connected to the inner side of the convex groove, a spring groove is symmetrically arranged on the side of the convex groove facing the push plate, a first spring is fixedly installed between the spring groove and the push plate, a push rod is fixedly installed on the side of the push plate facing the convex part of the convex groove, one end of the push rod is movably connected to the connecting mechanism, and the opening operation between the pipe clamp bottom shell and the connecting mechanism can be performed through the opening mechanism;

[0010] The connecting mechanism includes a shell seat, which is symmetrically fixedly installed on the back side of the mounting frame, a limiting rod is symmetrically fixedly installed on the inner side of the shell seat, a baffle is symmetrically slidably connected to the outer side of the limiting rod, a second spring is sleeved on the outer side of the limiting rod, the second spring is arranged between the baffles, a clamping block is fixedly installed on the side of the baffle away from the second spring, the clamping end of the clamping block is movably passed through the shell seat and the clamping hole for clamping, one end of the push rod and the clamping end of the clamping block are movably connected, and the shell seat and the mounting frame can be conveniently connected through the connecting mechanism.

[0011] Furthermore, a through groove is provided on one side of the hole wall of the clamping hole, and the notch of the through groove corresponds to the position of one end of the push rod. Through the through groove, one end of the push rod can conveniently pass through the clamping hole and contact the clamping end of the clamping block.

[0012] Furthermore, a sleeve is fixedly installed on the inner side of the bullet groove, and a sleeve rod is fixedly installed on the side of the push plate facing the bullet groove. One end of the sleeve rod is slidably connected to the inner side of the sleeve. The sleeve and the sleeve rod both pass through the middle part of the first spring. The stability of the first spring can be improved by the sleeve and the sleeve rod.

[0013] Furthermore, a second limiting groove is symmetrically provided on the inner side of the convex groove, and the end of the push plate is slidably connected to the inner side of the second limiting groove. Through the second limiting groove, the push plate can slide conveniently on the convex groove.

[0014] Furthermore, a first limiting groove is symmetrically opened on the outer side of the clamping block, and one end of the clamping block close to the stud is slidably connected to the inner side of the moving frame through the first limiting groove. Through the first limiting groove, one end of the clamping block can slide within the limit position on the moving frame.

[0015] Furthermore, a screw sleeve is fixedly installed on the inner side of the front of the moving frame, and one end of the stud is threaded through the screw sleeve and the rotational connection of the clamping block. Through the screw sleeve, one end of the stud can be threaded through the moving frame and the clamping block for rotational connection.

[0016] Furthermore, dovetail grooves are symmetrically provided on the front side of the adjusting shell, and the ends of the moving frame are slidably connected to the inner sides of the dovetail grooves. Through the dovetail grooves, the moving frame can slide on the front side of the adjusting shell.

[0017] Furthermore, a screw hole is provided on the right half of the adjusting shell, and the threaded end of the adjusting bolt passes through the screw hole and abuts against the adjusting groove on the right half of the mounting frame. Through the screw hole, the threaded end of the adjusting bolt can be easily abutted against the adjusting groove on the right half of the adjusting shell.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] Firstly, in the utility model, the sensor body is inserted into the positioning groove of the adjusting shell, and then the moving frame is used to slide on the adjusting shell to the middle of the sensor body, and then the rotary handle is rotated to make the stud connected to the rotary handle extend and retract on the moving frame. At the same time, the rotation of the stud pushes the clamping block to slide, so that the sensor body can be clamped tightly in the positioning groove. When the sensor body needs to be adjusted for detection position, there is no need to disassemble the sensor body and the mounting frame. It is only necessary to pull the adjusting shell to slide in the adjusting groove on the mounting frame. Then, when it is adjusted to the specified position, the adjusting bolt on the right half of the adjusting shell is rotated so that the threaded end of the adjusting bolt can be tightly pressed in the adjusting groove on the right half of the mounting frame, thereby facilitating the adjustment and use of the capacitive non-contact liquid level sensor.

[0020] Secondly, in the utility model, when installing the pipe clamp on the mounting frame, it is only necessary to insert the bottom shell on the pipe clamp into the shell seat on the mounting frame. During the insertion process, the lower end of the bottom shell squeezes the inclined surface of the card-in end of the card block, so that the baffles connected to the card block slide close to each other in the shell seat and compress the second spring until the position of the card-in end of the card block corresponds to the position of the card hole of the bottom shell. At this time, the second spring resets and pushes the baffles away from each other, and makes the connected card-in end of the card block snap into the card hole of the bottom shell to fix it, so that pipe clamps of different calibers can be quickly installed and used on the mounting frame.

[0021] Thirdly, in the utility model, when it is necessary to disassemble, assemble and replace the pipe clamp on the mounting frame, it is only necessary to squeeze the two push plates at one end of the mounting frame at the same time, so that one end of the push rod connected to the push plate can pass through the through groove on the clamp hole, and then push the clamp block out of the clamp hole, and then the bottom shell of the pipe clamp can be directly removed. During the pressing process, the push plate squeezes the first spring at the spring groove, and when the push plate is released, the first spring is reset. At this time, one end of the push rod is away from the clamp block, which is also convenient for the installation operation of the pipe clamp to be installed, so that the pipe clamp can be disassembled, assembled and replaced according to pipes of different calibers, thereby greatly improving the practicality of the installation of the liquid level sensor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a bottom view in the utility model;

[0024] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the connection between the adjusting bolt and the screw hole in the utility model;

[0026] Figure 5 It is a schematic diagram of the connection between the bottom shell and the mounting mechanism in the utility model;

[0027] Figure 6 It is a partial schematic diagram of the mounting frame in the utility model;

[0028] Figure 7 It is a schematic diagram of the structure of the opening mechanism in the utility model;

[0029] Figure 8 For the utility model Figure 7 Enlarged view of point B in the middle.

[0030] In the figure: 1, mounting frame; 2, pipe clamp; 3, mounting mechanism; 301, adjusting groove; 302, adjusting shell; 303, adjusting bolt; 304, positioning groove; 305, moving frame; 306, stud; 307, rotary handle; 308, clamping block; 4, sensor body; 6, opening mechanism; 601, convex groove; 602, push rod; 603, push plate; 604, first spring; 605, spring groove; 7, bottom shell; 8, first limiting groove; 9, screw sleeve; 10, dovetail groove; 11, screw hole; 12, clamping hole; 13, through groove; 14, connecting mechanism; 141, shell seat; 142, baffle; 143, limiting rod; 144, clamping block; 145, second spring; 15, sleeve; 16, sleeve rod; 17, second limiting groove. DETAILED DESCRIPTION

[0031] See also Figure 1-Figure 8 In the embodiment of the utility model, a capacitive non-contact liquid level sensor includes a sensor body 4, a mounting frame 1 and a pipe clamp 2. A mounting mechanism 3 is provided on the front of the mounting frame 1. The front of the mounting frame 1 is movably mounted through the mounting mechanism 3 and the sensor body 4. A connecting mechanism 14 is symmetrically provided on the back of the mounting frame 1. A bottom shell 7 is fixedly mounted on the outside of the pipe clamp 2. A clamping hole 12 is symmetrically provided on the inside of the bottom shell 7. The bottom shell 7 is clamped and connected with the connecting mechanism 14 through the clamping hole 12. An opening mechanism 6 is provided on the outside of the mounting frame 1. The opening mechanism 6 and the mounting mechanism 3 are movably connected. A capacitor, a probe and a signal conversion circuit are provided inside the capacitive non-contact liquid level sensor. Since it is a prior art, it will not be described in detail here.

[0032] The mounting mechanism 3 includes an adjusting slot 301, which is symmetrically arranged on the outside of the mounting frame 1. The inner side of the adjusting slot 301 is slidably connected with the same adjusting shell 302. The right side of the adjusting shell 302 is threadedly connected with an adjusting bolt 303. The threaded end of the adjusting bolt 303 penetrates the shell wall of the adjusting shell 302 and abuts against the adjusting slot 301 on the right half of the mounting frame 1. The front side of the adjusting shell 302 is provided with a positioning slot 304. The sensor body 4 is inserted into the inner side of the positioning slot 304. The front side of the adjusting shell 302 is slidably connected with a moving frame 305. The moving frame 305 is slidably connected with a clamping block 308 on the side facing the sensor body 4. The inner side of the moving frame 305 is threadedly connected with a stud 306. A rotary handle 307 is fixedly installed on one end of the stud 306. The other end of the stud 306 is rotatably connected with the clamping block 308. The end of the clamping block 308 away from the stud 306 abuts against the sensor body 4. When installing on the mounting bracket 2, the sensor body is inserted into the positioning groove 304 of the adjusting shell 302, and then the moving frame 305 is used to slide on the adjusting shell 302 to the middle of the sensor body 4, and then the rotary handle 307 is rotated to make the stud 306 connected to the rotary handle 307 threadedly extend and retract on the moving frame 305, and at the same time, the stud 306 rotates to push the clamping block 308 to slide, so that the sensor body 4 can be clamped and pressed tightly in the positioning groove 304. When the sensor body 4 needs to be adjusted for detection position, there is no need to disassemble the sensor body 4 and the mounting bracket 1. It is only necessary to pull the adjusting shell 302 to slide at the adjusting groove 301 on the mounting bracket 1. Then, when it is adjusted to the specified position, the adjusting bolt 303 on the right half of the adjusting shell 302 is rotated so that the threaded end of the adjusting bolt 303 is pressed tightly in the adjusting groove 301 on the right half of the mounting bracket 1, so that the capacitive non-contact liquid level sensor can be adjusted and used conveniently;

[0033] The opening mechanism 6 includes a convex groove 601, which is symmetrically arranged on the outside of the mounting frame 1, and a push plate 603 is slidably connected to the inner side of the convex groove 601. A spring groove 605 is symmetrically arranged on the side of the convex groove 601 facing the push plate 603. A first spring 604 is fixedly installed between the spring groove 605 and the push plate 603. A push rod 602 is fixedly installed on the side of the push plate 603 facing the convex part of the convex groove 601. One end of the push rod 602 is movably connected to the connecting mechanism 14. When the pipe clamp 2 on the mounting frame 1 needs to be disassembled and replaced, it is only necessary to squeeze the two push plates 603 at one end of the mounting frame 1 at the same time so that the push plates After one end of the push rod 602 connected to 603 can pass through the through groove 13 on the clamping hole 12, the clamping block 144 can be pushed out from the clamping hole 12, and then the bottom shell 7 of the pipe clamp 2 can be directly removed. During the pressing process, the push plate 603 squeezes the first spring 604 at the elastic groove 605. When the push plate 603 is released, the first spring 604 is reset. At this time, one end of the push rod 602 is away from the clamping block 144, which is also convenient for installing the pipe clamp 2 to be installed, so that the pipe clamp 2 can be disassembled and replaced according to pipes of different calibers, thereby greatly improving the practicality of installing the liquid level sensor body 4;

[0034] The connecting mechanism 14 includes a shell seat 141, which is symmetrically fixedly installed on the back of the mounting frame 1, a limiting rod 143 is symmetrically fixedly installed on the inner side of the shell seat 141, and a baffle 142 is symmetrically slidably connected to the outer side of the limiting rod 143. A second spring 145 is sleeved on the outer side of the limiting rod 143, and the second spring 145 is arranged between the baffles 142. A clamping block 144 is fixedly installed on the side of the baffle 142 away from the second spring 145. The clamping end of the clamping block 144 movably penetrates the shell seat 141 and is clamped in the clamping hole 12. One end of the push rod 602 and the clamping end of the clamping block 144 are movably connected. When the pipe clamp 2 is installed on the mounting frame 1 When the bottom shell 7 on the pipe clamp 2 is inserted into the shell seat 141 on the mounting frame 1, the lower end of the bottom shell 7 presses the inclined surface of the insertion end of the clamping block 144 during the insertion process, so that the baffle 142 connected to the clamping block 144 slides close to each other in the shell seat 141 and compresses the second spring 145 until the position of the insertion end of the clamping block 144 corresponds to the position of the clamping hole 12 of the bottom shell 7. At this time, the second spring 145 resets and pushes the baffle 142 away from each other, and makes the insertion end of the connected clamping block 144 clamped in the clamping hole 12 of the bottom shell 7 to fix it, so that the pipe clamps 2 of different calibers can be quickly installed and used on the mounting frame 1.

[0035] See also Figure 5-Figure 6 - Figure 7-Figure 8A through groove 13 is provided on one side of the hole wall of the card hole 12, and the notch of the through groove 13 corresponds to the position of one end of the push rod 602. A sleeve 15 is fixedly installed on the inner side of the spring groove 605, and a sleeve rod 16 is fixedly installed on the side of the push plate 603 facing the spring groove 605. One end of the sleeve rod 16 is slidably connected to the inner side of the sleeve 15. The sleeve 15 and the sleeve rod 16 both pass through the middle of the first spring 604. A second limiting groove 17 is symmetrically provided on the inner side of the convex groove 601, and the end of the push plate 603 is slidably connected to the second On the inner side of the limiting groove 17, when the two push plates 603 at one end of the mounting frame 1 are squeezed, the push rod 602 connected to the push plate 603 passes through the through groove 13 at the card hole 12 to easily contact the card-in end of the card block 144. In the process of pressing the push plate 603, the first spring 604 can be limited by sliding one end of the sleeve rod 16 on the inner side of the sleeve 15 of the spring groove 605, and pushing the push plate 603 to slide on the inner side of the second limiting groove 17 of the convex groove 601 can improve the stability of the push plate 603.

[0036] See also Figure 1-Figure 2 - Figure 3-Figure 4 The outer side of the clamp block 308 is symmetrically provided with a first limiting groove 8, and one end of the clamp block 308 close to the stud 306 is slidably connected to the inner side of the moving frame 305 through the first limiting groove 8. A screw sleeve 9 is fixedly installed on the inner side of the front of the moving frame 305, and one end of the stud 306 is threaded through the screw sleeve 9 and the rotation connection of the clamp block 308. The front side of the adjusting shell 302 is symmetrically provided with a dovetail groove 10, and the end of the moving frame 305 is slidably connected to the inner side of the dovetail groove 10. The right half of the adjusting shell 302 is provided with a screw hole 11, and the threaded end of the adjusting bolt 303 is threaded through the screw hole 11 and abuts against the adjusting groove 301 of the right half of the mounting frame 1. By using the first limiting groove 8 on the outer side of the clamp block 308 to slide on the inner side of the moving frame 305, one end of the clamp block 308 can be limitedly slid in the moving frame 305, and the The screw sleeve 9 can facilitate the threaded connection of the stud 306 connecting the moving frame 305 and the rotary handle 307. At the same time, the moving frame 305 slides at the dovetail groove 10 on the front side of the adjusting shell 302, which can facilitate the end of the moving frame 305 to be limited and slide on the adjusting shell 302. The screw hole 11 on one side of the adjusting shell 302 is used to facilitate the adjustment shell 302 installed with the sensor body 4 to be moved on the mounting frame 1, and then it is tightly fixed with the adjustment groove 301 on the right half of the mounting frame 1 through the adjusting bolt 303; the moving frame 305 is also provided with a square groove suitable for the clamping block 308 to slide through the first limiting groove 8, and the square groove is connected with the screw sleeve 9 to facilitate one end of the stud 306 to extend into the square groove and rotate to push the clamping block 308 to move. In addition, the clamping part of the clamping block 308 is also provided with a rubber pad, which can avoid damage to the outer shell of the sensor body 4.

[0037] The working principle of the utility model is as follows: during use, when the sensor body is installed on the adjusting shell 302, the sensor body is inserted into the positioning groove 304 of the adjusting shell 302, and then the moving frame 305 is used to slide on the adjusting shell 302 to the middle of the sensor body 4, and then the rotary handle 307 is rotated to make the stud 306 connected to the rotary handle 307 threadedly extend and retract on the moving frame 305, and at the same time, the stud 306 rotates to push the clamping block 308 to slide, so that the sensor body 4 can be clamped and pressed tightly in the positioning groove 304. When the sensor body 4 needs to be adjusted to the detection position, there is no need to disassemble the sensor body 4 and the mounting frame 1, and it is only necessary to pull the adjusting shell 302 to slide at the adjusting groove 301 on the mounting frame 1. Then, when it is adjusted to the specified position, the adjusting bolt 303 on the right half of the adjusting shell 302 is rotated so that the threaded end of the adjusting bolt 303 is pressed tightly in the adjusting groove 301 on the right half of the mounting frame 1.

[0038] When installing the pipe clamp 2 on the mounting frame 1, it is only necessary to insert the bottom shell 7 on the pipe clamp 2 into the shell seat 141 on the mounting frame 1. During the insertion process, the lower end of the bottom shell 7 presses the inclined surface of the card-in end of the card block 144, so that the baffle 142 connected to the card block 144 slides close to each other in the shell seat 141 and compresses the second spring 145 until the card-in end position of the card block 144 corresponds to the card hole 12 of the bottom shell 7. At this time, the second spring 145 resets and pushes the baffle 142 away from each other, and makes the card-in end of the connected card block 144 card into the card hole 12 of the bottom shell 7 to fix it. When it is necessary to disassemble, assemble and replace the pipe clamp 2 on the mounting frame 1, it is only necessary to squeeze the two push plates 603 at one end of the mounting frame 1 at the same time, so that one end of the push rod 602 connected to the push plate 603 can pass through the through groove 13 on the clamping hole 12, and then push the clamping block 144 out of the clamping hole 12, and then the bottom shell 7 of the pipe clamp 2 can be directly removed. During the pressing process, the push plate 603 squeezes the first spring 604 at the spring groove 605. When the push plate 603 is released, the first spring 604 is reset. At this time, one end of the push rod 602 is away from the clamping block 144, which also facilitates the installation operation of the pipe clamp 2 that needs to be installed.

Claims

1. A capacitive non-contact liquid level sensor, characterized in that: It includes a sensor body, a mounting frame and a pipe clamp, wherein a mounting mechanism is provided on the front of the mounting frame, and the front of the mounting frame is movably mounted through the mounting mechanism and the sensor body, and a connecting mechanism is symmetrically provided on the back of the mounting frame, and a bottom shell is fixedly installed on the outer side of the pipe clamp, and a clamping hole is symmetrically opened on the inner side of the bottom shell, and the bottom shell is clamped and connected with the connecting mechanism through the clamping hole, and an opening mechanism is provided on the outer side of the mounting frame, and the opening mechanism and the mounting mechanism are movably connected; The mounting mechanism comprises an adjusting slot, the adjusting slot is symmetrically arranged on the outside of the mounting frame, the inner side of the adjusting slot is slidably connected with the same adjusting shell, the right side of the adjusting shell is threadedly connected with an adjusting bolt, the threaded end of the adjusting bolt passes through the shell wall of the adjusting shell and abuts against the adjusting slot of the right half of the mounting frame, the front side of the adjusting shell is arranged with a positioning slot, the sensor body is inserted into the inner side of the positioning slot, the front side of the adjusting shell is slidably connected with a moving frame, the moving frame is slidably connected with a clamping block on the side facing the sensor body, the inner side of the moving frame is threadedly connected with a stud, one end of the stud is fixedly mounted with a rotating handle, the other end of the stud is rotatably connected with the clamping block, and the end of the clamping block away from the stud abuts against the sensor body; The opening mechanism includes a convex groove, which is symmetrically arranged on the outside of the mounting frame, a push plate is slidably connected to the inner side of the convex groove, a spring groove is symmetrically arranged on the side of the convex groove facing the push plate, a first spring is fixedly installed between the spring groove and the push plate, a push rod is fixedly installed on the side of the push plate facing the convex part of the convex groove, and one end of the push rod is movably connected to the connecting mechanism.

2. A capacitive non-contact liquid level sensor according to claim 1, characterized in that: The connecting mechanism includes a shell seat, which is symmetrically fixed on the back of the mounting frame, a limiting rod is symmetrically fixedly installed on the inner side of the shell seat, a baffle is symmetrically slidably connected to the outer side of the limiting rod, a second spring is sleeved on the outer side of the limiting rod, the second spring is arranged between the baffles, a clamping block is fixedly installed on the side of the baffle away from the second spring, the clamping end of the clamping block movably passes through the shell seat and the clamping hole, and one end of the push rod and the clamping end of the clamping block are movably connected.

3. A capacitive non-contact liquid level sensor according to claim 1, characterized in that: A through slot is provided on one side of the hole wall of the clamping hole, and the notch of the through slot corresponds to the position of one end of the push rod.

4. A capacitive non-contact liquid level sensor according to claim 1, characterized in that: A sleeve is fixedly installed on the inner side of the bullet groove, a sleeve rod is fixedly installed on the side of the push plate facing the bullet groove, one end of the sleeve rod is slidably connected to the inner side of the sleeve, and the sleeve and the sleeve rod both pass through the middle part of the first spring.

5. A capacitive non-contact liquid level sensor according to claim 1, characterized in that: A second limiting groove is symmetrically provided on the inner side of the convex groove, and the end of the push plate is slidably connected to the inner side of the second limiting groove.

6. A capacitive non-contact liquid level sensor according to claim 1, characterized in that: The outer side of the clamp block is symmetrically provided with a first limiting groove, and one end of the clamp block close to the stud is slidably connected to the inner side of the moving frame through the first limiting groove.

7. A capacitive non-contact liquid level sensor according to claim 1, characterized in that: A screw sleeve is fixedly installed on the inner side of the front face of the moving frame, and one end of the stud is threadedly penetrated through the screw sleeve and the rotation connection of the clamping block.

8. A capacitive non-contact liquid level sensor according to claim 1, characterized in that: The front side of the adjusting shell is symmetrically provided with dovetail grooves, and the end of the moving frame is slidably connected to the inner side of the dovetail grooves.

9. A capacitive non-contact liquid level sensor according to claim 1, characterized in that: The right half of the adjusting shell is provided with a screw hole, and the threaded end of the adjusting bolt threadably penetrates through the screw hole and abuts against the adjusting groove of the right half of the mounting frame.

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