Tuning fork switch
By designing the disassembled structure of the tuning fork switch, allowing the individual replacement of the tuning fork, the problem of accumulated adhesions affecting vibrations in the surface area of the tuning fork is solved, reducing the cost of use and improving the accuracy of liquid level control.
Patent Information
- Application Number
- CN202421803240.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-29
AI Technical Summary
When the tuning fork switch is used for a long time, adhesions will accumulate on the surface of the tuning fork, affecting vibration sensitivity and frequency, resulting in inaccurate liquid level control and the inability to replace the tuning fork separately, resulting in increased usage costs.
A tuning fork switch is designed, which allows separate disassembly and replacement of the tuning forks through the cooperation of half-column, semi-cylindrical grooves, clamp plates and clamp slots, and uses limit rings and magnetic adsorption plates to achieve safe disassembly of the tuning forks.
The individual replacement of the tuning fork is achieved, reducing the cost of use and improving the working reliability and sensitivity of the tuning fork.
Smart Images
Figure CN222812431U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of level measurement, in particular to a tuning fork switch. Background Art
[0002] The tuning fork switch is a level measuring device designed based on the vibration principle and can be used for liquid level control. The tuning fork switch is not affected by foam, eddy currents, or gas during use. The tuning fork of the tuning fork switch vibrates when it is acted upon by external force during use. The vibration will be transmitted along the tuning fork and generate sound waves. The vibration frequency determines the sound wave frequency, and the propagation speed of the sound wave is related to the properties of the liquid. The ultrasonic sensor in the tuning fork switch can be used to measure the propagation time of the sound wave to determine the depth of the liquid.
[0003] Tuning fork switches are mostly used for sewage with stratification and impurities, and industrial liquids such as hydrochloric acid and sodium hydroxide. Although harsh environmental conditions have no effect on the detection of tuning fork switches, impurity particles, dirt, dust, etc. in the liquid will adhere to the tuning fork after long-term use. The long-term accumulated adhesion will affect the sensitivity and frequency of vibration when the tuning fork contacts the liquid, which will affect the liquid level control process. When the tuning fork affects use, since the tuning fork and the tuning fork switch are a whole, the tuning fork cannot be replaced alone. Replacing the entire tuning fork switch will increase the cost of use. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] The technical problem to be solved by the utility model is that adhesions will be generated on the surface of the tuning fork component of the current tuning fork switch during long-term use. The long-term accumulation of these adhesions will cause the sensitivity of the vibration of the tuning fork to decrease when it contacts the liquid, and affect the frequency of the vibration generated when the tuning fork contacts the liquid. The staff cannot replace the tuning fork alone, and replacing the entire tuning fork switch will increase the cost of use.
[0006] (II) Technical solution
[0007] In order to solve the above technical problems, the technical solution provided by the utility model is: a tuning fork switch, comprising a junction box and a tuning fork arranged relatively, the lower end of the junction box is provided with a flange, and also includes a connecting head fixedly connected to the lower end of the flange, a semi-cylindrical groove is provided in the connecting head, a clamping groove is provided in the connecting head on one side of the semi-cylindrical groove, a connecting block is fixedly connected to the upper end of the tuning fork, a semi-column matching with the semi-cylindrical groove is provided at the upper end of the connecting block, a clamping plate matching with the clamping groove is fixedly connected to one side of the semi-column, a semi-annular support plate is fixedly connected to the connecting head on one side of the semi-cylindrical groove, and a limiting ring matching with the semi-annular support plate, the connecting head and the semi-column is slidably sleeved on the connecting head.
[0008] As an improvement, an insertion rod is fixedly connected to the upper end of the semi-column, and a circular hole matching the insertion rod is provided at the upper end of the semi-cylindrical groove in the connecting head.
[0009] As an improvement, a groove is provided between the semi-column and the clamping plate, and the groove cooperates with one side of the upper semi-cylindrical groove of the connecting head.
[0010] As an improvement, the semi-annular support plate and the limiting ring are both provided with magnetic adsorption sheets that cooperate with each other.
[0011] As an improvement, a spacer that cooperates with the card plate is adhered to the inner wall of the card slot.
[0012] (III) Beneficial effects
[0013] Compared with the prior art, the utility model has the following advantages: with the cooperation of the semi-column, the semi-cylindrical groove, the clamping plate and the clamping groove, when it is necessary to replace the tuning fork that has accumulated a lot of adhesion, the limiting ring can be moved upward to remove the semi-column from the semi-cylindrical groove, so that the tuning fork can be disassembled and replaced separately, which can reduce the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a tuning fork switch explosion Figure 1 .
[0015] Figure 2 The utility model is a tuning fork switch explosion Figure 2 .
[0016] Figure 3 It is an enlarged view of point A of a tuning fork switch of the utility model.
[0017] Figure 4 The utility model is a schematic assembly diagram of a tuning fork switch without flange and junction box.
[0018] As shown in the figure: 1. Junction box; 2. Flange; 3. Connector; 4. Semi-cylindrical groove; 5. Clamping groove; 6. Semi-annular support plate; 7. Semi-column; 8. Clamping plate; 9. Round hole; 10. Insert rod; 11. Connecting block; 12. Tuning fork; 13. Limiting ring; 14. Groove. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0020] Embodiment 1
[0021] like Figure 1 As shown, a tuning fork 12 switch comprises a junction box 1 and a tuning fork 12 arranged relatively to each other, wherein an ultrasonic sensor cooperating with the tuning fork 12 is arranged in the junction box 1, a flange 2 is arranged at the lower end of the junction box 1, and further comprises a connector 3 fixedly connected to the lower end of the flange 2, wherein a semi-cylindrical groove 4 is arranged in the connector 3, a card slot 5 is arranged in the connector 3 on one side of the semi-cylindrical groove 4, and a connecting block 11 is fixedly connected to the upper end of the tuning fork 12.
[0022] Through the above structure, the ultrasonic sensor in the junction box 1 can collect data from the tuning fork 12. How to replace the tuning fork 12 separately? The specific structure is as follows:
[0023] like Figure 2 , Figure 3 and Figure 4 As shown, the upper end of the connecting block 11 is provided with a half column 7 that cooperates with the semi-cylindrical groove 4, one side of the half column 7 is fixedly connected with a card plate 8 that cooperates with the card slot 5, the inner wall of the card slot 5 is adhered with a spacer that cooperates with the card plate 8, a semi-annular support plate 6 is fixedly connected to one side of the semi-cylindrical groove 4 on the connecting head 3, a limiting ring 13 that cooperates with the semi-annular support plate 6, the connecting head 3 and the half column 7 is slidably sleeved on the connecting head 3, the semi-annular support plate 6 and the limiting ring 13 are both provided with mutually cooperating magnetic adsorption sheets, so that there is a magnetic attraction between the limiting ring 13 and the semi-annular support plate 6, a groove 14 is provided between the half column 7 and the card plate 8, and the groove 14 cooperates with one side of the semi-cylindrical groove 4 on the connecting head 3.
[0024] Through the above structure, the tuning fork 12 can be replaced individually, thereby reducing the use cost.
[0025] Embodiment 2
[0026] like Figure 2 and Figure 3 As shown, an insert rod 10 is fixedly connected to the upper end of the semi-column 7, and a round hole 9 matching with the insert rod 10 is provided at the upper end of the semi-cylindrical groove 4 in the connector 3.
[0027] Through the above structure, the circular hole 9 is electrically connected to the insertion rod 10 , and the ultrasonic sensor in the junction box 1 collects data of the tuning fork 12 through the circular hole 9 and the insertion rod 10 .
[0028] During the specific implementation of the utility model, when a large amount of adhesives accumulate on the surface of the tuning fork during use, the tuning fork needs to be replaced. Specifically, the half column is moved downward, and when the insertion rod is moved out of the round hole, the limit ring is moved upward and the half column is translated, so that the card plate can be moved out of the card slot, the tuning fork can be disassembled, and then a new tuning fork can be replaced;
[0029] Insert the rod at the upper end of the new tuning fork into the round hole to complete the electrical connection. The ultrasonic sensor can collect the data of the tuning fork vibration. At the same time, insert the card plate into the card slot and lift the limit ring. After the card plate is inserted into the card slot, loosen the limit ring, and the limit ring will drop to the upper end of the semi-circular support plate. The limit ring can be sleeved on the circumference of the semi-column and the connecting block to complete the installation. In this way, when replacing the tuning fork switch, the tuning fork can be replaced separately, thereby reducing the cost of use.
[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
[0032] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A tuning fork switch, comprising a junction box (1) and a tuning fork (12) arranged opposite to each other, wherein a flange (2) is provided at the lower end of the junction box (1), and characterized in that: It also includes a connecting head (3) fixedly connected to the lower end of the flange (2), wherein a semi-cylindrical groove (4) is provided in the connecting head (3), a clamping groove (5) is provided on one side of the semi-cylindrical groove (4) in the connecting head (3), and a connecting block (11) is fixedly connected to the upper end of the tuning fork (12); The upper end of the connecting block (11) is provided with a semi-column (7) that cooperates with the semi-cylindrical groove (4); a clamping plate (8) that cooperates with the clamping groove (5) is fixedly connected to one side of the semi-cylindrical groove (4); a semi-annular support plate (6) is fixedly connected to one side of the semi-cylindrical groove (4) on the connecting head (3); and a limiting ring (13) that cooperates with the semi-annular support plate (6), the connecting head (3) and the semi-column (7) is slidably sleeved on the connecting head (3).
2. A tuning fork switch according to claim 1, characterized in that: The upper end of the semi-column (7) is fixedly connected with an insertion rod (10), and a circular hole (9) matching with the insertion rod (10) is provided at the upper end of the semi-cylindrical groove (4) in the connecting head (3).
3. A tuning fork switch according to claim 1, characterized in that: A groove (14) is provided between the semi-column (7) and the clamping plate (8), and the groove (14) cooperates with one side of the semi-cylindrical groove (4) on the connecting head (3).
4. A tuning fork switch according to claim 1, characterized in that: The semi-annular support plate (6) and the limiting ring (13) are both provided with magnetic adsorption sheets that cooperate with each other.
5. The tuning fork switch according to claim 1, characterized in that: A spacer that cooperates with the clamping plate (8) is adhered to the inner wall of the clamping slot (5).