Anti-blocking equipment for liquid level sensor

Abstract

The utility model relates to the technical field of liquid level sensors, and discloses anti-blocking equipment for a liquid level sensor, which comprises the liquid level sensor, a limiting plate is fixedly mounted on one side of the surface of the liquid level sensor, a rotating groove is formed in the surface of the limiting plate, a rotating rod is rotatably connected in the rotating groove, and a barrier plate is rotatably connected to the top of the rotating rod. A penetrating groove is formed in one side of the surface of the barrier plate, an inserting rod is arranged in the penetrating groove, and a transmission line is arranged at the bottom of the liquid level sensor. According to the anti-blocking equipment for the liquid level sensor, through arrangement of a limiting plate, a rotating rod, a barrier plate, an inserting rod and a transmission line, in the using process, a worker winds the transmission line to the surface of the rotating rod, then the barrier plate limits the transmission line, and after winding of the transmission line is finished, the worker inserts the inserting rod into a penetrating groove; and the transmission line is limited by the inserting rods, so that the transmission line can be stored, and the situation that the transmission line is scattered to the ground is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level sensors, in particular to an anti-blocking device for a liquid level sensor. Background Art

[0002] At present, there are mature immersion level sensors on the market, which are pressure sensors that measure liquid levels. Figure 1 As shown, the sensor is made of stainless steel. Based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid, an isolated diffused silicon sensitive element or a ceramic capacitor pressure sensitive sensor is used to convert the static pressure into an electrical signal. After temperature compensation and linear correction, the water level value is output through 4-20mA current or RS485 signal, that is, converted into a standard electrical signal. It is generally suitable for liquid level measurement of various media in systems and industries such as petrochemical, metallurgy, electric power, pharmaceuticals, water supply and drainage, and environmental protection.

[0003] An anti-blocking liquid level sensor disclosed in publication number CN206638311 U includes a liquid level sensor body, a sensor probe is provided at the bottom end of the liquid level sensor body, a liquid isolation tube is sleeved on the lower end of the sensor probe, a fixing piece is plugged into the lower part of the liquid isolation tube, the interior of the fixing piece is a solid structure, a first screw is connected between the fixing piece and the sensor probe, and a second screw is connected to the lower end of the fixing body; two through holes are provided inside the fixing piece, namely a water injection hole and an exhaust hole, nuts are provided in the water injection hole and the exhaust hole; the top of the sensor body is connected to a communication line protection tube. The utility model can avoid the isolated diffused silicon sensitive element or ceramic capacitor from directly contacting the liquid in the canned container, and instead uses a rubber liquid isolation tube to contact the measured liquid to prevent the sensor probe from being blocked, while increasing the force area during liquid measurement and ensuring the accuracy of the measurement data.

[0004] However, this anti-blocking device for liquid level sensors has the following disadvantages:

[0005] (1) During the use of the liquid level sensor, a transmission line is provided at its output end. The transmission line is scattered on the ground for a long time and is easily stepped on, causing damage to the internal line of the transmission line;

[0006] (2) When the liquid level sensor is performing detection, it is easy to be blocked by foreign matter, which affects the detection results of the sensor and causes a decrease in accuracy. Utility Model Content

[0007] The technical problem solved by the utility model is to provide an anti-blocking device for a liquid level sensor which is highly practical, can be operated simply and has a relatively simple structure. It solves the problem proposed in the above-mentioned background technology that during the use of the liquid level sensor, a transmission line is provided at its output end, and the transmission line is scattered on the ground for a long time and is easily stepped on, causing damage to the internal line of the transmission line and the liquid level sensor is easily blocked by foreign objects, resulting in the sensor detection results being affected and the accuracy being reduced.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a blocking prevention device for a liquid level sensor, comprising a liquid level sensor, a limit plate fixedly installed on one side of the surface of the liquid level sensor, a rotating groove provided on the surface of the limit plate, a rotating rod rotatably connected to the inside of the rotating groove, a blocking plate rotatably connected to the top of the rotating rod, a through groove provided on one side of the surface of the blocking plate, a plug-in rod provided inside the through groove, a transmission line provided at the bottom of the liquid level sensor, a sensing head fixedly installed on one end of the transmission line, and an anti-blocking component provided inside the sensing head.

[0009] Optionally, the anti-blocking component includes a limiting ring threadedly connected to the inside of the sensing head, an installation groove is provided inside the limiting ring, a filter plate is provided inside the installation groove, positioning plates are fixedly installed on both sides of the bottom of the filter plate, telescopic rods are fixedly installed on both sides of the surface of the positioning plate, a spring is sleeved on the surface of the telescopic rod, and a clamping plate is fixedly installed on one end of the telescopic rod.

[0010] Optionally, a connecting groove is provided inside the limiting ring, the size of the connecting groove is adapted to the size of the clamping plate, and the clamping plate is clamped to the inside of the connecting groove.

[0011] Optionally, a plug-in slot is provided on one side of the surface of the limiting plate, the size of the plug-in slot is adapted to the size of the plug-in rod, and the plug-in rod passes through the plug-in slot.

[0012] Optionally, a thread groove is provided inside the sensing head, the size of the thread groove matches the size of the limiting ring, and the limiting ring and the sensing head are threadedly connected.

[0013] Optionally, a waterproof ring is provided on the surface of the transmission line, the material of the waterproof ring is rubber material, and the connection points at both ends of the waterproof ring are provided with waterproof coating.

[0014] The utility model provides an anti-blocking device for a liquid level sensor, which has the following beneficial effects:

[0015] 1. The anti-blocking device for the liquid level sensor is provided with a limit plate, a rotating rod, a blocking plate, a plug-in rod and a transmission line. During use, the personnel wind the transmission line onto the surface of the rotating rod, and then the blocking plate limits the transmission line. After the transmission line is wound, the personnel inserts the plug-in rod into the inside of the through-groove, and the plug-in rod limits the transmission line, which can be stored, reducing the occurrence of the transmission line scattering on the ground.

[0016] 2. The liquid level sensor uses an anti-blocking device. Through the setting of the sensing head and the anti-blocking component, during use, the personnel connect the limit ring and the sensing head. After the connection, the filter plate inside the limit ring will filter the liquid. After filtering the liquid, the personnel can rotate the filter plate to disassemble it. After disassembly, the filter plate is cleaned. After cleaning, the filter plate is installed again, reducing the occurrence of blockage in the sensing head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the blocking plate of the utility model;

[0019] Figure 3 This is a schematic diagram of the anti-blocking component structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the split structure of the utility model.

[0021] In the figure: 1. Liquid level sensor; 2. Limit plate; 3. Rotating rod; 4. Blocking plate; 5. Connecting rod; 6. Transmission line; 7. Sensing head; 8. Anti-blocking assembly; 81. Limiting ring; 82. Filter plate; 83. Positioning plate; 84. Telescopic rod; 85. Spring; 86. Snap-in plate. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] See also Figures 1 to 4The utility model provides a technical solution: an anti-blocking device for a liquid level sensor, comprising a liquid level sensor 1, a limit plate 2 fixedly mounted on one side of the surface of the liquid level sensor 1, a plug-in slot provided on one side of the surface of the limit plate 2, the size of the plug-in slot being adapted to the size of the plug-in rod 5, the plug-in rod 5 passing through the plug-in slot, a rotating slot provided on the surface of the limit plate 2, a rotating rod 3 rotatably connected to the interior of the rotating slot, a blocking plate 4 rotatably connected to the top of the rotating rod 3, a through slot provided on one side of the surface of the blocking plate 4, a plug-in rod 5 provided inside the through slot, and a transmission line 6 provided at the bottom of the liquid level sensor 1;

[0024] During use, personnel wrap the transmission line 6 around the surface of the rotating rod 3, and then the blocking plate 4 limits the transmission line 6. After the transmission line 6 is wrapped, personnel insert the plug-in rod 5 into the inside of the through groove. The plug-in rod 5 limits the transmission line 6 and can store the transmission line 6, reducing the occurrence of the transmission line 6 scattering on the ground.

[0025] The surface of the transmission line 6 is provided with a waterproof ring, which is made of rubber material. The connection points of the two ends of the waterproof ring are provided with waterproof coating. One end of the transmission line 6 is fixedly installed with a sensor head 7, and an anti-blocking component 8 is provided inside the sensor head 7;

[0026] Example 1:

[0027] The anti-blocking component 8 includes a limiting ring 81 which is threadedly connected to the interior of the sensing head 7. A mounting groove is provided inside the limiting ring 81. A filter plate 82 is provided inside the mounting groove. Positioning plates 83 are fixedly installed on both sides of the bottom of the filter plate 82. Telescopic rods 84 are fixedly installed on both sides of the surface of the positioning plate 83. A spring 85 is sleeved on the surface of the telescopic rod 84. A clamping plate 86 is fixedly installed on one end of the telescopic rod 84. A connecting groove is provided inside the limiting ring 81. The size of the connecting groove matches the size of the clamping plate 86. The clamping plate 86 is clamped to the inside of the connecting groove. A threaded groove is provided inside the sensing head 7. The size of the threaded groove matches the size of the limiting ring 81. The limiting ring 81 and the sensing head 7 are threadedly connected.

[0028] During use, the personnel threadedly connect the limit ring 81 and the inside of the induction head 7. After connecting the limit switch 81, the personnel clamp the filter plate 82 to the inside of the limit ring 81. During the clamping process, the inner wall of the limit ring 81 will squeeze the clamping plate 86. During the squeezing of the clamping plate 86, the clamping plate 86 will squeeze the spring 85 on the telescopic rod 84. After the spring 85 is squeezed, it will rebound. The telescopic rod 84 drives the clamping plate 86 to clamp to the inside of the connecting groove, and the filter plate 82 can be quickly installed.

[0029] In the present invention, the working steps of the device are as follows:

[0030] First, the transmission line 6 is wound onto the surface of the rotating rod 3, and then the blocking plate 4 limits the transmission line 6. After the transmission line 6 is wound, the personnel inserts the connecting rod 5 into the inside of the through groove. The connecting rod 5 limits the transmission line 6 and can accommodate the transmission line 6. Then, the limiting ring 81 and the inside of the induction head 7 are threadedly connected. After the limiting switch 81 is connected, the personnel clamps the filter plate 82 to the inside of the limiting ring 81. During the clamping process, the inner wall of the limiting ring 81 will squeeze the clamping plate 86. During the process of squeezing the clamping plate 86, the clamping plate 86 will squeeze the spring 85 on the telescopic rod 84. After the spring 85 is squeezed, it will rebound, and the clamping plate 86 is driven by the telescopic rod 84 to be clamped to the inside of the connecting groove, so that the filter plate 82 can be quickly installed.

[0031] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the device's power mechanism, power supply system, and control system are not fully described. However, those skilled in the art can clearly understand the details of its power mechanism, power supply system, and control system on the premise that they understand the principle of the above-mentioned utility model. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be implemented by simple programming by those skilled in the art.

[0032] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0033] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-blocking device for a liquid level sensor, comprising a liquid level sensor (1), characterized in that: A limit plate (2) is fixedly mounted on one side of the surface of the liquid level sensor (1); a rotation groove is provided on the surface of the limit plate (2); a rotation rod (3) is rotatably connected to the interior of the rotation groove; a blocking plate (4) is rotatably connected to the top of the rotation rod (3); a through groove is provided on one side of the surface of the blocking plate (4); a plug-in rod (5) is provided inside the through groove; a transmission line (6) is provided at the bottom of the liquid level sensor (1); a sensing head (7) is fixedly mounted on one end of the transmission line (6); an anti-blocking component (8) is provided inside the sensing head (7).

2. The anti-blocking device for a liquid level sensor according to claim 1, characterized in that: The anti-blocking assembly (8) comprises a limiting ring (81) threadedly connected to the interior of the induction head (7); a mounting groove is provided inside the limiting ring (81); a filter plate (82) is provided inside the mounting groove; positioning plates (83) are fixedly installed on both sides of the bottom of the filter plate (82); telescopic rods (84) are fixedly installed on both sides of the surface of the positioning plate (83); a spring (85) is sleeved on the surface of the telescopic rod (84); and a clamping plate (86) is fixedly installed on one end of the telescopic rod (84).

3. The anti-blocking device for a liquid level sensor according to claim 2, characterized in that: A connecting groove is provided inside the limiting ring (81), the size of the connecting groove is adapted to the size of the clamping plate (86), and the clamping plate (86) is clamped to the inside of the connecting groove.

4. The anti-blocking device for a liquid level sensor according to claim 1, characterized in that: A plug-in slot is provided on one side of the surface of the limiting plate (2), the size of the plug-in slot being adapted to the size of the plug-in rod (5), and the plug-in rod (5) passes through the plug-in slot.

5. The anti-blocking device for a liquid level sensor according to claim 1, characterized in that: A thread groove is provided inside the induction head (7), the size of the thread groove being adapted to the size of the limiting ring (81), and the limiting ring (81) and the induction head (7) are connected by threads.

6. The anti-blocking device for a liquid level sensor according to claim 1, characterized in that: The surface of the transmission line (6) is provided with a waterproof ring, the material of the waterproof ring is rubber material, and the connection points at both ends of the waterproof ring are provided with waterproof coating.

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