A quick-disassembly tuning fork level switch

Abstract

The present invention discloses a quickly detachable tuning fork liquid level switch, belonging to the technical field of tuning fork liquid level switches. A quickly detachable tuning fork liquid level switch includes a housing and a fork body. The housing includes an installation body and a connection body. A circuit component is installed in the installation body. Grooves are provided on both sides of the connection body, and fixing components are arranged in the grooves; the fixing components include fixing blocks. A spring A is connected to the inner side of the fixing block, and the spring A is fixedly connected to the inner wall of the groove. An arc-shaped card slot is provided on the outer side of the fixing block, and a sealing gasket is arranged in the arc-shaped card slot. The top surface of the sealing gasket is rotatably connected with an adjusting component. An installation hole is provided on the fixing block, and the adjusting component is arranged in the installation hole. By arranging two groups of fixing components on the connection body, the present invention facilitates the connection of the device to the device to be measured. When disassembling the device, after moving the sealing gasket and the sleeve upward, the adjusting rod is placed into the installation hole, and the fixing block is squeezed inward to remove the device, making the disassembly of the device more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of tuning fork liquid level switches, and more specifically, to a detachable tuning fork liquid level switch quickly. Background Art

[0002] A tuning fork liquid level switch is a type of liquid level control switch. The tuning fork is excited by a crystal to generate vibration. When the tuning fork is immersed in the liquid, the vibration frequency changes. This frequency change is detected by an electronic circuit and outputs a switching value. The working principle of the tuning fork liquid level switch is that a pair of piezoelectric crystals installed on the tuning fork base causes the tuning fork to vibrate at a certain resonance frequency. When the tuning fork of the tuning fork liquid level switch contacts the measured medium, the frequency and amplitude of the tuning fork will change. These changes of the tuning fork liquid level switch are detected, processed by an intelligent circuit and converted into a switching signal.

[0003] Existing tuning fork liquid level switches are all connected to the measured device by threads. After a long time, the threads are prone to rusting, which is not convenient for disassembling the tuning fork liquid level switch. In view of this, we propose a detachable tuning fork liquid level switch quickly. Summary of the Invention

[0004] The purpose of the present invention is to provide a detachable tuning fork liquid level switch quickly to solve the problem raised in the above background art: existing tuning fork liquid level switches are all connected to the measured device by threads. After a long time, the threads are prone to rusting, which is not convenient for disassembling the tuning fork liquid level switch.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A detachable tuning fork liquid level switch quickly includes a housing and a fork body. The housing includes an installation body and a connection body. The connection body is arranged at the bottom surface of the installation body. A circuit component is installed in the installation body. Grooves are opened on both sides of the connection body, and fixing components are arranged in the grooves;

[0007] The fixing component includes a fixing block. A spring A is connected to the inner side of the fixing block. The spring A is fixedly connected to the inner wall of the groove. An arc-shaped clamping groove is opened on the outer side of the fixing block. A sealing gasket is arranged in the arc-shaped clamping groove. An adjusting component is rotatably connected to the top surface of the sealing gasket. An installation hole is opened on the fixing block, and the adjusting component is arranged in the installation hole.

[0008] Preferably, the adjusting component includes a sleeve. The sleeve is threadedly connected to the installation hole and is rotatably connected to the sealing gasket.

[0009] Preferably, a boss is arranged at the bottom surface of the sleeve, and a connection groove that is rotationally matched with the boss is opened on the top surface of the sealing gasket.

[0010] Preferably, an adjusting rod is sleeved inside the sleeve, a guiding groove is formed on the inner wall of the sleeve, and a sliding block which is slidably matched with the guiding groove is arranged on the adjusting rod.

[0011] Preferably, a protective cover is sleeved on the top of the mounting body, buffer springs are arranged on both sides of the bottom surface of the mounting groove of the mounting body, a buffer backing plate is connected to the top surface of the buffer springs, and the circuit component is in contact with the buffer backing plate.

[0012] A pressing plate is rotatably connected to the top surface of the mounting body, an extrusion rod is sleeved at one end of the pressing plate, and a pressing block is arranged at the end of the extrusion rod.

[0013] A spring B is sleeved on the extrusion rod, the end of the spring B is fixedly connected to the pressing plate, and the extrusion rod is slidably matched with the pressing plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] (1) By arranging two groups of fixing components on the connecting body, the present invention facilitates the connection of the device to the device to be measured. When installing the device, the fixing block is manually squeezed towards the inner side of the groove, at this time the spring A is compressed. When the outer wall of the device to be measured is located in the arc-shaped clamping groove, the fixing block is released, and the fixing block slides outwards relative to the groove under the elastic force of the spring A. Then the end of the adjusting rod in the mounting hole is lifted upwards. Since the sliding block on the outer side of the adjusting rod is slidably matched with the guiding groove on the inner wall of the sleeve, after the adjusting rod is pulled out upwards, the sleeve is rotated by rotating the adjusting rod. The sleeve and the mounting hole are in threaded connection, so the sleeve will move downwards along the mounting hole, thereby pushing the sealing gasket into contact with the device to be measured, and fixing the device on the device to be measured. When disassembling the device, first move the sealing gasket and the sleeve upwards, then put the adjusting rod into the mounting hole, and squeeze the fixing block inwards to remove the device. The device has a simple structure and is more convenient to disassemble.

[0016] (2) By arranging buffer springs, buffer backing plates on the bottom surface of the mounting groove for installing the circuit component of the mounting body and a pressing plate on the top surface of the mounting body, the present invention facilitates the installation and fixation of the circuit component in the mounting body and is more convenient to disassemble during maintenance. By applying a downward force to the circuit component through the extrusion rod, the circuit component squeezes the buffer springs and the buffer backing plates, and the buffer springs are compressed. At this time, the circuit component is fixed, and the protective cover is just put on. When the circuit component needs to be maintained, the protective cover is removed, the extrusion rod is pulled upwards, at this time the spring B is compressed, and then the pressing plate is rotated around the rotation axis connecting it to the mounting body to separate the pressing plate from the circuit component. Then the restoring elastic force of the buffer spring will push the buffer backing plate and the circuit component to move upwards, facilitating the maintenance of the circuit component or directly taking out the circuit component for maintenance. Description of the Drawings

[0017] Figure 1 Schematic diagram of the overall structure of the present invention;

[0018] Figure 2 Schematic cross-sectional view of the connecting body of the present invention;

[0019] Figure 3 Schematic diagram of the fixing component of the present invention;

[0020] Figure 4 Schematic diagram of the sleeve of the present invention;

[0021] Figure 5 Schematic cross-sectional view of the installation body of the present invention;

[0022] Figure 6 Schematic diagram of the partial enlargement of the present invention.

[0023] Explanation of the reference numerals in the figure: 1. Housing; 101. Installation body; 102. Connecting body; 103. Groove; 104. Protection cover; 2. Fork body; 3. Fixing component; 301. Fixing block; 302. Spring A; 303. Arc-shaped card slot; 304. Sealing gasket; 305. Installation hole; 306. Sleeve; 307. Boss; 308. Connecting groove; 309. Adjusting rod; 310. Guide groove; 311. Slide block; 4. Buffer spring; 5. Buffer backing plate; 6. Pressing plate; 7. Extrusion rod; 8. Spring B. Detailed implementation manners

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0025] In the description of the present invention, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.

[0026] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] Embodiment 1:

[0028] Please refer to Figure 1-6 , a quickly detachable tuning fork level switch, which includes a housing 1 and a fork body 2. The housing 1 includes an installation body 101 and a connection body 102. The connection body 102 is arranged on the bottom surface of the installation body 101. A circuit component is installed in the installation body 101. Grooves 103 are opened on both sides of the connection body 102, and a fixing component 3 is arranged in the grooves 103 for fixing the device on the device to be measured.

[0029] The fixing component 3 includes a fixing block 301. A spring A302 is connected to the inner side of the fixing block 301. The spring A302 is fixedly connected to the inner wall of the groove 103. An arc-shaped clamping groove 303 is opened on the outer side of the fixing block 301. A sealing gasket 304 is arranged in the arc-shaped clamping groove 303. The top surface of the sealing gasket 304 is rotatably connected with an adjusting component. An installation hole 305 is opened on the fixing block 301. The adjusting component is arranged in the installation hole 305. Setting the fixing block 301 in the groove 103 facilitates the installation and disassembly of the device. Through the spring A302, the fixing block 301 is in close contact with the device to be measured. When installing the device, the fixing block 301 is squeezed towards the inner side of the groove 103 by hand. At this time, the spring A302 is compressed. When the outer wall of the device to be measured is located in the arc-shaped clamping groove 303, the fixing block 301 is released. The fixing block 301 slides outwards relative to the groove 103 under the elastic force of the spring A302. When disassembling the device, the fixing block 301 can be squeezed inwards to remove the device.

[0030] The adjusting component includes a sleeve 306. The sleeve 306 is threadedly connected with the installation hole 305. The sleeve 306 is rotatably connected with the sealing gasket 304, which facilitates pushing the sealing gasket 304 to move by rotating the sleeve 306. By rotating the sleeve 306, since the sleeve 306 and the installation hole 305 are threadedly connected, the sleeve 306 will move downward along the installation hole 305, thereby pushing the sealing gasket 304 to contact the device to be measured.

[0031] The bottom surface of the sleeve 306 is provided with a boss 307, and the top surface of the gasket 304 is provided with a connecting groove 308 that rotatably cooperates with the boss 307. Through the cooperation of the boss 307 and the gasket 304, when the sleeve 306 rotates, the gasket 304 does not rotate along with it.

[0032] An adjusting rod 309 is sleeved inside the sleeve 306. The inner wall of the sleeve 306 is provided with a guiding groove 310, and the adjusting rod 309 is provided with a slider 311 that slidably cooperates with the guiding groove 310. Through the cooperation of the guiding groove 310 and the slider 311, the adjusting rod 309 can only move up and down inside the sleeve 306, which is convenient for the adjusting rod 309 to drive the sleeve 306 to rotate when it rotates.

[0033] In the present invention, by providing two sets of fixing components 3 on the connecting body 102, it is convenient for the device to be connected to the device under test. When installing the device, the fixing block 301 is manually squeezed towards the inside of the groove 103. At this time, the spring A 302 is compressed. When the outer wall of the device under test is located inside the arc-shaped card slot 303, the fixing block 301 is released. The fixing block 301 slides outwards relative to the groove 103 under the elastic force of the spring A 302, and then the end of the adjusting rod 309 inside the mounting hole 305 is lifted upwards. Since the slider 311 on the outside of the adjusting rod 309 slidably cooperates with the guiding groove 310 on the inner wall of the sleeve 306, after the adjusting rod 309 is pulled out upwards, the sleeve 306 is rotated by rotating the adjusting rod 309. The sleeve 306 and the mounting hole 305 are threadedly connected, so the sleeve 306 will move downwards along the mounting hole 305, thereby pushing the gasket 304 to contact the device under test, and fixing the device on the device under test. When disassembling the device, first move the gasket 304 and the sleeve 306 upwards, then put the adjusting rod 309 into the mounting hole 305, and squeeze the fixing block 301 towards the inside to remove the device. The device has a simple structure and is more convenient to disassemble.

[0034] Embodiment 2:

[0035] Please refer to Figure 5-6 , the difference based on Embodiment 1 is that: a protective cover 104 is sleeved on the top of the mounting body 101 for protecting the circuit components. Buffer springs 4 are arranged on both sides of the bottom surface of the mounting groove of the mounting body 101. The top surface of the buffer spring 4 is connected with a buffer backing plate 5. The circuit components are in contact with the buffer backing plate 5, and the restoring elastic force of the buffer spring 4 is used to push the circuit components upwards.

[0036] A pressing plate 6 is rotatably connected to the top surface of the mounting body 101. One end of the pressing plate 6 is sleeved with a pressing rod 7, and a pressing block is arranged at the end of the pressing rod 7. The circuit components are fixed inside the mounting body 101 by using the pressing rod 7, and it is convenient to take out the circuit components through the pressing plate 6 rotatably connected to the mounting body 101.

[0037] A spring B8 is sleeved on the extrusion rod 7, and the end of the spring B8 is fixedly connected to the pressing plate 6. The extrusion rod 7 is slidably matched with the pressing plate 6. The spring B8 is used to push the extrusion rod 7 to press the circuit assembly tightly.

[0038] In the present invention, by arranging the buffer spring 4 and the buffer backing plate 5 on the bottom surface of the installation groove for installing the circuit assembly on the installation body 101 and arranging the pressing plate 6 on the top surface of the installation body 101, it is convenient to install and fix the circuit assembly on the installation body 101, and it is more convenient to disassemble during maintenance. By applying a downward force to the circuit assembly through the extrusion rod 7, the circuit assembly presses the buffer spring 4 and the buffer backing plate 5, and the buffer spring 4 is compressed. At this time, the circuit assembly is fixed, and the protective cover 104 can be put on. When the circuit assembly needs to be repaired, the protective cover 104 is removed, and the extrusion rod 7 is pulled upward. At this time, the spring B8 is compressed. Then the pressing plate 6 is rotated around the rotation axis connecting it to the installation body 101 to separate the pressing plate 6 from the circuit assembly. Then the restoring elastic force of the buffer spring 4 will push the buffer backing plate 5 and the circuit assembly to move upward, facilitating the repair of the circuit assembly or directly taking out the circuit assembly for repair.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quickly detachable tuning fork liquid level switch, comprising a housing (1) and a fork body (2), Characterized in that: The housing (1) includes a mounting body (101) and a connecting body (102). The connecting body (102) is arranged on the bottom surface of the mounting body (101). A circuit component is installed in the mounting body (101). Grooves (103) are formed on both sides of the connecting body (102), and fixing components (3) are arranged in the grooves (103); The fixing component (3) includes a fixing block (301). A spring A (302) is connected to the inner side of the fixing block (301). The spring A (302) is fixedly connected to the inner wall of the groove (103). An arc-shaped clamping groove (303) is formed on the outer side of the fixing block (301). A sealing gasket (304) is arranged in the arc-shaped clamping groove (303). An adjusting component is rotatably connected to the top surface of the sealing gasket (304). A mounting hole (305) is formed on the fixing block (301), and the adjusting component is arranged in the mounting hole (305); The adjusting component includes a sleeve (306). The sleeve (306) is in threaded connection with the mounting hole (305), and the sleeve (306) is rotatably connected to the sealing gasket (304); A boss (307) is arranged on the bottom surface of the sleeve (306), and a connecting groove (308) which is rotationally matched with the boss (307) is formed on the top surface of the sealing gasket (304); An adjusting rod (309) is sleeved in the sleeve (306). A guiding groove (310) is formed on the inner wall of the sleeve (306), and a sliding block (311) which is slidably matched with the guiding groove (310) is arranged on the adjusting rod (309).

2. A quickly detachable tuning fork liquid level switch according to claim 1, Characterized in that: A protective cover (104) is sleeved on the top of the mounting body (101). Buffer springs (4) are arranged on both sides of the bottom surface of the mounting groove of the mounting body (101). A buffer backing plate (5) is connected to the top surface of the buffer spring (4), and the circuit component is in contact with the buffer backing plate (5).

3. A quickly detachable tuning fork liquid level switch according to claim 2, Characterized in that: A pressing plate (6) is rotatably connected to the top surface of the mounting body (101). An extrusion rod (7) is sleeved at one end of the pressing plate (6), and a pressing block is arranged at the end of the extrusion rod (7).

4. A quickly detachable tuning fork liquid level switch according to claim 3, Characterized in that: A spring B (8) is sleeved on the extrusion rod (7). The end of the spring B (8) is fixedly connected to the pressing plate (6), and the extrusion rod (7) is slidably matched with the pressing plate (6).

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