Concentration detection device

Abstract

The utility model is suitable for the technical field of alcohol concentration detection, and provides a concentration detection device. The detection rod is fixedly connected with a tuning fork and can detect the concentration of fluid such as alcohol, a flange plate for fixing the detection rod is fixedly connected above the detection rod, the detection device and the detection port can be fixed through the flange plate, and a gauge outfit for displaying detection data is fixedly connected above the flange plate. Fluid concentration data detected by the detection rod is displayed through the gauge outfit; the lower portion of the flange plate is sleeved with a sealing piece for sealing the contact face of the detection rod, the flange plate is fixedly connected with an elastic piece abutting against the sealing piece and a pushing piece which drives the elastic piece to contract and is rotationally connected with the flange plate, the sealing piece can improve the sealing effect of the contact face of the detection device and the detection opening, and volatilization and leakage of fluid are avoided.

Description

Technical Field

[0001] This utility model relates to the field of alcohol concentration detection technology, and in particular to a concentration detection device. Background Technology

[0002] The tuning fork density sensor is designed based on the vibration principle of components. This vibrating element is similar to a two-toothed tuning fork, with the fork body vibrating due to a piezoelectric crystal located at the root of the teeth. When the medium flows through the fork body, the change in the medium's mass causes a change in the resonant frequency. A display module shows the measurement data. Typically, the detection tuning fork of the testing device is inserted into the detection port for real-time detection. However, the flatness of the end face of the detection port has a problem, leading to a poor seal between the flange of the testing device and the fixed surface of the detection port, affecting the detection effect.

[0003] Chinese patent publication number CN221351078U discloses an online alcohol concentration meter, including a meter head and a detection part, wherein the meter head and the detection part are detachably connected; wherein, the detection part includes a connecting neck, a stop plate and a tuning fork are fixedly installed below the connecting neck, and a wave shield is detachably connected below the connecting neck, and the wave shield has several through holes on its end face. When the above concentration meter is installed to the detection port, the contact surface between the mounting flange of the concentration meter and the detection port has processing defects such as excessive flatness tolerance, resulting in leakage at the installation point.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] To address the aforementioned deficiencies, the purpose of this utility model is to provide a concentration detection device that can improve the sealing effect at the installation point of the detection device, solve the leakage problem caused by excessive flatness of the end face of the detection port, and at the same time reduce the vibration frequency of the detection device and improve detection accuracy.

[0006] To achieve the above objectives, this utility model provides a concentration detection device, comprising: a detection rod, a flange for fixing the detection rod fixedly connected above the detection rod, a meter for displaying detection data fixedly connected above the flange; a sealing element for sealing the contact surface of the detection rod sleeved below the flange; and an elastic element that abuts against the sealing element and a pushing element that drives the elastic element to contract and is rotatably connected to the flange fixedly on the flange.

[0007] According to the concentration detection device of this utility model, a connecting neck is fixedly connected between the flange and the meter head, and a pushing member is screwed onto the connecting neck. The pushing member is arranged symmetrically along the axis of the connecting neck.

[0008] According to the concentration detection device of this utility model, the pushing member is configured as a pushing block, the outermost edge of the pushing block abuts against the elastic member, and the outermost edge of the pushing block is concave-convex.

[0009] According to the concentration detection device of this utility model, the outermost edge of the push block is provided with a smooth section and a raised section, and the outermost edge of the smooth section and the outermost edge of the raised section are provided with a distance.

[0010] According to the concentration detection device of this utility model, the elastic element is disposed in the receiving groove on the flange, the movable end of the elastic element abuts against the pushing block, the fixed end of the elastic element is fixed to the inner wall of the receiving groove, and the lowest point of the elastic element abuts against the limiting piece.

[0011] According to the concentration detection device of this utility model, the limiting plate is sleeved outside the detection rod, and the limiting plate and the sealing element are respectively provided with matching limiting grooves and protrusions. The sealing element is a sealing gasket, and a sealing strip is embedded on the bottom surface of the sealing gasket.

[0012] According to the concentration detection device of this utility model, the detection rod is fitted with a shock-absorbing pad disposed between the flange and the limiting plate, and a tuning fork is fixedly connected to the bottom of the detection rod.

[0013] This utility model provides a concentration detection device, including: a detection rod with a tuning fork fixedly attached to it for detecting the concentration of fluids such as alcohol; a flange fixedly connected above the detection rod for fixing the detection rod, which secures the detection device to the detection port; a meter fixedly connected above the flange for displaying detection data, which displays the fluid concentration data detected by the detection rod; and a sealing element for sealing the contact surface of the detection rod under the flange. An elastic element that abuts against the sealing element and a pushing element that drives the elastic element to contract and is rotatably connected to the flange are fixedly attached to the flange. The sealing element increases the sealing effect between the detection device and the detection port, preventing fluid evaporation and leakage.

[0014] The beneficial effects of this utility model are as follows: the fluid concentration can be detected by the detection rod, the detected data can be displayed by the meter, the sealing effect at the installation point of the detection device can be increased by the sealing element, the pushing element and the elastic element can ensure that the sealing element is in close contact with the end of the detection port, solve the leakage problem caused by the flatness deviation of the end face of the detection port, and improve the sealing effect; the vibration damping pad can reduce the vibration frequency of the detection device, thereby improving the detection accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2This is a cross-sectional structural schematic diagram of the flange of this utility model;

[0017] Figure 3 This is an exploded view of the shock-absorbing pad, the limiting plate, and the sealing gasket of this utility model;

[0018] Figure 4 This is a utility model Figure 3 Another structural diagram;

[0019] In the diagram, 1-gauge head, 2-detection rod, 21-tuning fork, 3-flange, 31-connecting neck, 32-receiving groove, 4-push block, 41-protruding section, 42-smooth section, 5-shock-absorbing pad, 6-limiting plate, 61-limiting groove, 7-sealing gasket, 71-sealing strip, 72-protrusion, 8-elastic element. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0021] See Figures 1 to 4 This utility model provides a concentration detection device, which includes: a detection rod 2, on which a tuning fork 21 is fixedly connected, capable of detecting the concentration of fluids such as alcohol; a flange 3 for fixing the detection rod 2 is fixedly connected above the detection rod 2, and the detection device is fixed to the detection port through the flange 3; a meter 1 for displaying detection data is fixedly connected above the flange 3, and the fluid concentration data detected by the detection rod 2 is displayed through the meter 1; a sealing element for sealing the contact surface of the detection rod 2 is sleeved below the flange 3; an elastic element 8 that abuts against the sealing element and a pushing element that drives the elastic element 8 to contract are fixedly connected to the flange 3; the sealing element can increase the sealing effect of the contact surface between the detection device and the detection port, and prevent fluid evaporation and leakage.

[0022] See Figures 1 to 4 Preferably, a connecting neck 31 is fixedly connected between the flange 3 and the meter head 1 of this utility model, and a pushing member is screwed onto the connecting neck 31. The pushing member is arranged symmetrically along the axis of the connecting neck 31 to ensure that the elastic members 8 on both sides can be driven to contract simultaneously when the pushing member rotates.

[0023] See Figures 1 to 4Furthermore, the pushing component of this utility model is a pushing block 4, the outermost edge of which abuts against the elastic component 8. The outermost edge of the pushing block 4 is concave and convex. During implementation, the smallest diameter of the outer edge of the pushing block 4 abuts against the movable end of the elastic component 8. By rotating the pushing block 4, the largest diameter of the outer edge of the pushing block 4 is controlled to abut against the movable end of the elastic component 8, ensuring that the elastic component 8 is pushed to contract. The lowest point of the elastic component 8 abuts against the limiting piece 6, which can increase the abutting force of the elastic component 8. Moreover, the pushing block 4 is axially symmetrically arranged, which can drive the two elastic components 8 to contract simultaneously, ensuring that the abutting force applied by the two elastic components 8 to the limiting piece 6 is the same, thereby ensuring that the limiting piece 6 is subjected to average force.

[0024] See Figures 1 to 4 Furthermore, the outermost edge of the push block 4 of this utility model is provided with a smooth section 42 and a raised section 41. The outermost edge of the smooth section 42 and the outermost edge of the raised section 41 are spaced apart to ensure that when the push block 4 rotates, it can drive the movable end of the elastic member 8 to move closer to the fixed end.

[0025] See Figures 1 to 4 Even better, the elastic element 8 of this utility model is disposed in the receiving groove 32 on the flange 3. The movable end of the elastic element 8 abuts against the pushing block 4, the fixed end of the elastic element 8 is fixed to the inner wall of the receiving groove 32, and the lowest point of the elastic element 8 abuts against the limiting piece 6. The elastic element 8 applies abutting force to the limiting piece 6 to ensure that the sealing gasket 7 below the limiting piece 6 is tightly attached to the detection port to avoid leakage.

[0026] See Figures 1 to 4 Even better, the limiting piece 6 of this utility model is sleeved outside the detection rod 2. The limiting piece 6 and the sealing element are respectively provided with matching limiting grooves 61 and protrusions 72. The sealing element is a sealing gasket 7, and a sealing strip 71 is embedded on the bottom surface of the sealing gasket 7.

[0027] See Figures 1 to 4 Even better, the detection rod 2 of this utility model is provided with a shock-absorbing pad 5 between the flange 3 and the limiting plate 6. The shock-absorbing pad 5 can reduce the vibration frequency of the detection rod 2 and improve the detection accuracy. A tuning fork 21 is fixedly connected to the bottom of the detection rod 2.

[0028] Working principle: The shock-absorbing pad 5, the limiting plate 6, and the sealing gasket 7 are sequentially placed on the outside of the detection rod 2. The detection rod 2 is inserted into the detection port, and the sealing gasket 7 is in direct contact with the detection port. The protrusion 72 on the sealing gasket 7 is located in the limiting groove 61 on the limiting plate 6, which can prevent the sealing gasket 7 from being misaligned when the flange 3 is fixed with bolts. After the flange 3 is fixed, the push block 4 is rotated to control the transition from the smooth section 42 that abuts against the movable end of the elastic element 8 to the protruding section 41, ensuring that the abutting force applied by the elastic element 8 to the limiting plate 6 is increased, thereby improving the sealing effect.

[0029] In summary, this utility model provides a concentration detection device, comprising: a detection rod with a tuning fork fixedly attached thereto, capable of detecting the concentration of fluids such as alcohol; a flange fixedly connected above the detection rod for fixing the detection rod, thereby fixing the detection device to the detection port; a meter fixedly connected above the flange for displaying detection data, the fluid concentration data detected by the detection rod being displayed on the meter; a sealing element for sealing the contact surface of the detection rod is sleeved below the flange; and an elastic element abutting against the sealing element and a mechanism for driving the elastic element to contract are fixedly attached to the flange. The pusher and seal, which are rotatably connected to the flange, enhance the sealing effect between the detection device and the detection port, preventing fluid evaporation and leakage. The beneficial effects of this invention are: the detection rod enables the detection of fluid concentration, the meter displays the detected data, the seal enhances the sealing effect at the installation point of the detection device, the pusher and elastic element ensure tight contact between the seal and the end of the detection port, solving the leakage problem caused by excessive flatness of the detection port end face and improving the sealing effect; and the shock-absorbing pad reduces the vibration frequency of the detection device, thereby improving detection accuracy.

[0030] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A concentration detecting device characterized by comprising: Including; the detection rod, the upper fixed connection of the detection rod is connected with the flange plate for fixing the detection rod, the upper fixed connection of the flange plate is connected with the table head for showing detection data; The lower part of the flange plate is sleeved with a sealing element for sealing the contact surface of the detection rod, and the flange plate is fixedly connected with an elastic element abutting against the sealing element and a pusher connected with the flange plate and driving the elastic element to contract.

2. The concentration detecting apparatus according to claim 1, characterized by The flange plate and the table head are fixedly connected with a connecting neck, the pusher is screwed on the connecting neck, and the pusher is arranged in axial symmetry along the axis of the connecting neck.

3. The concentration detecting apparatus according to claim 2, wherein The pusher is provided as a push block, the outermost edge of the push block abuts against the elastic element, and the outermost edge of the push block is concave-convex.

4. The concentration detecting apparatus according to claim 3, wherein The outermost edge of the push block is provided with a gentle section and a convex section, and the outermost edges of the gentle section and the convex section are provided with a distance.

5. The concentration detecting apparatus according to claim 2, wherein The elastic element is arranged in a containing groove on the flange plate, the movable end of the elastic element abuts against the push block, the fixed end of the elastic element is fixedly connected with the inner wall of the containing groove, and the lowest point of the elastic element abuts against a limiting piece.

6. The concentration detecting apparatus according to claim 5, wherein The limiting piece is sleeved outside the detection rod, and the limiting piece and the sealing element are respectively provided with a limiting groove and a convex portion matched with each other, the sealing element is provided as a sealing gasket, and the bottom surface of the sealing gasket is embedded with a sealing strip.

7. The concentration detecting apparatus according to claim 6, wherein The detection rod is sleeved with a shock-absorbing gasket arranged between the flange plate and the limiting piece, and the bottom of the detection rod is fixedly connected with a tuning fork.

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