External liquid level sensor

Abstract

The utility model discloses an external liquid level sensor which comprises an external liquid level sensor body, the external liquid level sensor body comprises a water storage tank, one end of the water storage tank is provided with a mounting plate, a containing column is embedded in the middle of the interior of the mounting plate, and the top end of the containing column is provided with a U-shaped floating plate; by designing a fixed mounting mechanism, when the bottom end of a containing column is embedded into the middle position of the inner bottom end of a mounting plate, a hand wheel is held by hand to drive a two-way screw to rotate, and when the two-way screw rotates, two moving blocks are stably controlled to move oppositely on the outer surface of the two-way screw; when the movable block moves, the movable supporting plate and the clamping plate are driven to move and are clamped and fixed on the surface of the containing column to be fixedly installed again, the two sides can be moved, clamped and fixedly installed at the same time when the containing column is fixed, installation is convenient, the two sides are evenly stressed, and the U-shaped floating plate stably floats to accurately measure the liquid level.

Description

Technical Field

[0001] The utility model belongs to the technical field of external liquid level sensors, and in particular relates to an external liquid level sensor. Background Art

[0002] The existing external liquid level sensor is a pressure sensor for measuring liquid level. It is based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid. The external liquid level sensor uses the floating change of the floating plate to drive the U-shaped floating plate to float, and the other end of the U-shaped floating plate floats inside the receiving column. The liquid level parameters are observed by the scale. When the water level in the water tank is lower than a certain height, the limit block contacts the electromagnetic induction switch to light up the alarm light, achieving an early warning effect, and effectively placing the external liquid level sensor in external liquid level monitoring;

[0003] According to an external liquid level sensor disclosed in the authorized patent application No. 202022323524.8, when the existing external liquid level sensor is in use, the receiving column is on the surface of the end bearing plate of the water tank, and the clamping plate is driven to move and clamp the receiving column by rotating the screw rod under the action of the bearing. Because when the two sides of the receiving column are clamped and fixed, the screw rods on both sides are rotated separately to drive the clamping plates to move and clamp, the clamping and fixing operation is cumbersome and inconvenient, and it is easy to cause the moving distance of the clamping plates on both sides to be inconsistent. When clamping, the forces on both sides of the receiving column are different, and even cause slight tilting after clamping, which affects the accuracy of liquid level detection, thereby affecting the convenience of clamping and fixing the receiving column during the installation and use of the liquid level sensor and the liquid level detection effect. For this reason, the utility model proposes an external liquid level sensor. Utility Model Content

[0004] The utility model aims to provide an external liquid level sensor to solve the problem in the above background technology that, when the existing external liquid level sensor is in use, the screws on both sides of the receiving column are rotated separately to drive the clamping plates to move and clamp, and the clamping and fixing operation is cumbersome and inconvenient. At the same time, it is easy to cause different forces on the clamping plates on both sides to move, and even cause slight tilt after clamping. The liquid level detection generates friction on the U-shaped floating plate to cause a liquid level error, thereby affecting the convenience of clamping and fixing the receiving column when the liquid level sensor is installed and used and the liquid level detection effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an external liquid level sensor, comprising an external liquid level sensor body, the external liquid level sensor body comprising a water storage tank, one end of the water storage tank is provided with a mounting plate, a receiving column is embedded in the middle position of the mounting plate, a U-shaped floating plate is provided at the top of the receiving column, the end of the U-shaped floating plate is located inside the water storage tank and a floating plate is provided, a limit block is provided at the top of one side of the U-shaped floating plate, an electromagnetic induction switch and a scale are provided at the top of one side of the receiving column, and the external liquid level sensor body is also provided with:

[0006] A fixed installation mechanism, wherein the fixed installation mechanism comprises a movable adjustment component arranged at the bottom end of the mounting plate, a clamping and fixing component is arranged at the end of the movable adjustment component, and a rotating and fixing component is arranged at one side of the bottom end of the clamping and fixing component;

[0007] The connecting mechanism includes a disassembly and assembly connecting component arranged at the connection between the end of the U-shaped floating plate and one end of the upper surface of the floating plate.

[0008] Preferably, the movable adjustment component includes a movable control groove opened at the bottom end of the mounting plate, a bidirectional screw is rotated inside the movable control groove, the end of the bidirectional screw is located on the surface of the mounting plate and a handwheel is installed, and movable blocks are provided at both ends of the bidirectional screw.

[0009] Preferably, the moving block matches the outer surface structure of the bidirectional screw, and the two moving blocks are symmetrically arranged.

[0010] Preferably, the clamping and fixing assembly comprises a movable support plate fixed to the end of the movable block by screws, and a clamping plate is provided on one side of the movable support plate.

[0011] Preferably, the rotating fixing assembly comprises a connecting plate integrally formed at the bottom end of one side of the movable supporting plate, and a locking bolt is rotatably arranged inside the connecting plate.

[0012] Preferably, the disassembly and assembly connection assembly includes a threaded column arranged at the end of a U-shaped floating plate, the end of the threaded column is provided with an external thread mounting ring, the inner surface of the external thread mounting ring is provided with an internal thread structure, and an internal thread mounting hole is opened on one end surface of the floating plate.

[0013] Preferably, the external thread mounting ring and the U-shaped floating plate are rotationally connected via the threaded column and the internal thread structure, and the outer surface of the external thread mounting ring is consistent with the inner surface structure of the internal thread mounting hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By designing a fixed installation mechanism, the bottom end of the receiving column can be embedded in the middle position of the inner bottom end of the installation plate, and the hand wheel is held to drive the bidirectional screw to rotate. When the bidirectional screw rotates, the two moving blocks are stably controlled to move toward each other on the outer surface of the bidirectional screw. When the moving block moves, it drives the moving support plate and the clamping plate to move and clamp and fix them on the surface of the receiving column, and then fix and install them again, so that when the receiving column is fixed, both sides can be moved, clamped and fixed at the same time. The installation is convenient, the force on both sides is uniform, the U-shaped floating plate is stably floated and the liquid level is accurately measured, which improves the convenience of installation of the external liquid level sensor body on the receiving column and the accuracy of liquid level detection when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of the external liquid level sensor of the utility model;

[0018] Figure 3 It is a side structural schematic diagram of the utility model;

[0019] Figure 4 For this utility model Figure 1 The enlarged structural diagram of part A in the middle;

[0020] Figure 5 It is a schematic diagram of the structure of the external thread mounting ring, the U-shaped floating plate and the partially opened state of the floating plate of the utility model;

[0021] In the figure: 100, external liquid level sensor body; 101, water tank; 102, mounting plate; 103, receiving column; 1031, clamping plate; 1032, hand wheel; 1033, moving control groove; 1034, bidirectional screw; 1035, moving support plate; 1036, moving block; 1037, connecting plate; 1038, locking bolt; 104, U-shaped floating plate; 1041, threaded column; 1042, external thread mounting ring; 1043, internal thread structure; 1044, internal thread mounting hole; 105, floating plate; 106, limit block; 107, electromagnetic induction switch. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5The utility model provides a technical solution: an external liquid level sensor, including an external liquid level sensor body 100, the external liquid level sensor body 100 includes a water tank 101, one end of the water tank 101 is provided with a mounting plate 102, a receiving column 103 is embedded in the middle position of the mounting plate 102, a U-shaped floating plate 104 is provided at the top of the receiving column 103, the end of the U-shaped floating plate 104 is located in the water tank 101 and a floating plate 105 is provided, the floating plate 105 is inside the water tank 101 and floats on the water surface, and the water level change inside the water tank 101 causes a certain position change of the floating plate 105, and the floating plate 104 is provided at the top of the receiving column 103. 05 changes drive the U-shaped floating plate 104 to float. When the U-shaped floating plate 104 floats, it floats inside the receiving column 103, and the depth of the liquid level is observed by the scale on the surface of the U-shaped floating plate 104. A limit block 106 is set at the top of one side of the U-shaped floating plate 104, and an electromagnetic induction switch 107 and a scale are set at the top of one side of the receiving column 103. When the water level in the water storage tank 101 is lower than a certain height, the limit block 106 contacts the electromagnetic induction switch 107 to light up the alarm light to achieve an early warning effect, thereby facilitating the external liquid level sensor body 100 to be in external liquid level monitoring. The external liquid level sensor body 100 is also provided with:

[0024] A fixed installation mechanism is provided, and the fixed installation mechanism includes a movable adjustment component arranged at the bottom end of the mounting plate 102, a clamping and fixing component is arranged at the end of the movable adjustment component, and a rotating fixing component is arranged on one side of the bottom end of the clamping and fixing component. When the external liquid level sensor body 100 is installed on the receiving column 103 before use, the receiving column 103 can be quickly and simply installed by the fixed installation mechanism, and the two sides are clamped with force evenly, so that the U-shaped floating plate 104 can float stably and accurately measure the liquid level, thereby improving the convenience of installing the receiving column 103 and the accuracy of liquid level detection when the external liquid level sensor body 100 is in use.

[0025] In order to facilitate the simultaneous movement of the two clamps 1031 through the movable adjustment component, and to clamp and fix them on both sides with uniform force, in this embodiment, preferably, the movable adjustment component includes a movable control groove 1033 opened at the bottom end of the inner part of the mounting plate 102, and a bidirectional screw 1034 is rotated inside the movable control groove 1033. The end of the bidirectional screw 1034 is located on the surface of the mounting plate 102 and a handwheel 1032 is installed. The handwheel 1032 is held to drive the screw rod 1034 to rotate, and the screw rod 1034 is rotated and adjusted inside the movable control groove 1033. Moving blocks 1036 are provided at both ends of the bidirectional screw rod 1034, and when the bidirectional screw rod 1034 rotates, the two moving blocks 1036 are moved toward each other to adjust and clamp them.

[0026] In order to facilitate the quick clamping and fixing of the receiving column 103 after it is placed through the clamping and fixing assembly, both sides are clamped and fixed at the same time, which is convenient for installation. In this embodiment, preferably, the clamping and fixing assembly includes a movable support plate 1035 fixed to the end of the movable block 1036 by screws, and a clamping plate 1031 is provided on one side of the movable support plate 1035. When the movable block 1036 is moved, the movable support plate 1035 and the clamping plate 1031 are driven to move, and the clamping plate 1031 is clamped and fixed to the surface of the receiving column 103 for reinforced installation.

[0027] In order to facilitate the re-reinforcement and installation of the clamp 1031 after it is moved and clamped by the rotating fixing assembly, in this embodiment, preferably, the rotating fixing assembly includes a connecting plate 1037 integrally formed at the bottom end of one side of the movable support plate 1035, and a locking bolt 1038 is rotated inside the connecting plate 1037. When the clamp 1031 is clamped and fixed on the surface of the receiving column 103, the locking bolt 1038 is rotated on the surface of the connecting plate 1037 to reinforce and clamp the clamp 1031.

[0028] The connecting mechanism includes a disassembly and assembly connecting component arranged at the connection between the end of the U-shaped floating plate 104 and one end of the upper surface of the floating plate 105. The external liquid level sensor body 100 can be quickly installed between the U-shaped floating plate 104 and the floating plate 105 by the connecting mechanism when in use, and vice versa, it is convenient for rapid disassembly during maintenance, and the disassembly and assembly are convenient for maintenance, thereby improving the convenience of disassembly and assembly and maintenance of the U-shaped floating plate 104 and the floating plate 105 when the external liquid level sensor body 100 is in use.

[0029] In order to facilitate the rotational fixed installation between the U-shaped floating plate 104 and the floating plate 105 by disassembling the connecting component, and to facilitate quick disassembly during maintenance, in the present embodiment, preferably, the disassembly connecting component includes a threaded column 1041 arranged at the end of the U-shaped floating plate 104, and the end of the threaded column 1041 is provided with an external thread mounting ring 1042, and the inner surface of the external thread mounting ring 1042 is provided with an internal thread structure 1043, so that when the external thread mounting ring 1042 is rotated, the end of the threaded column 1041 can be matched and rotated and fixed inside the external thread mounting ring 1042 through the internal thread structure 1043, and an internal thread mounting hole 1044 is provided on one end surface of the floating plate 105, and when the external thread mounting ring 1042 is rotated again, the outer surface of the external thread mounting ring 1042 is rotationally connected with the inner surface of the internal thread mounting hole 1044, so that the U-shaped floating plate 104 and the floating plate 105 can be easily rotationally installed, and vice versa, it is convenient to disassemble.

[0030] Working principle and use process of the utility model: When the external liquid level sensor is in use, the floating plate 105 is inside the water tank 101 and floats on the water surface. The water level change inside the water tank 101 causes a certain position change of the floating plate 105. The change of the floating plate 105 drives the U-shaped floating plate 104 to float. When the U-shaped floating plate 104 floats, it floats inside the receiving column 103, and the depth of the liquid level is observed by the scale on the surface of the U-shaped floating plate 104. When the water level in the water tank 101 is lower than a certain height, the limit block 106 contacts the electromagnetic induction switch 107 to light up the alarm light, achieving an early warning effect, thereby facilitating the external liquid level sensor body 100 to be in the external liquid level monitoring;

[0031] When the external liquid level sensor body 100 is in use and installed, the bottom end of the receiving column 103 is embedded in the middle position of the inner bottom end of the mounting plate 102, and the hand wheel 1032 is held to drive the bidirectional screw 1034 to rotate. When the bidirectional screw 1034 rotates, the two moving blocks 1036 are stably controlled to move toward each other on the outer surface of the bidirectional screw 1034 and located inside the moving control groove 1033. When the moving block 1036 moves, it drives the moving support plate 1035 and the clamping plate 1031 to move and clamp and fix on the surface of the receiving column 103, and then the locking bolt 1038 is rotated on the surface of the connecting plate 1037 to squeeze on the inner surface of the mounting plate 102 for stable installation, so that when the receiving column 103 is fixed, both sides can be moved, clamped and fixed at the same time. The fixed installation is convenient, and the force on both sides is uniform during installation. After clamping and fixing, it is not easy to tilt slightly, and the U-shaped floating plate 104 can float stably and accurately measure the liquid level, thereby improving the convenience of installing the receiving column 103 and the accuracy of liquid level detection when the external liquid level sensor body 100 is in use.

[0032] Finally, when the external liquid level sensor body 100 is installed before use, when the end of the U-shaped floating plate 104 is installed with the end of the floating plate 105, the external threaded mounting ring 1042 is rotated to rotate the end of the threaded column 1041 inside the external threaded mounting ring 1042 through the internal threaded structure 1043, and at the same time, the outer surface of the external threaded mounting ring 1042 is rotated inside the internal threaded mounting hole 1044, so that the external threaded mounting ring 1042 is respectively fixed to the end of the U-shaped floating plate 104 and the surface of the floating plate 105, so that the U-shaped floating plate 104 and the floating plate 105 can be quickly installed and used, and when the U-shaped floating plate 104 and the floating plate 105 need to be inspected and disassembled, the opposite operation is performed to quickly disassemble them, and the disassembly and maintenance operations are convenient, which improves the convenience of disassembly and maintenance of the U-shaped floating plate 104 and the floating plate 105 when the external liquid level sensor body 100 is in use.

[0033] Although the embodiments of the present invention have been shown and described (see the detailed description above for details), 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 external liquid level sensor, comprising an external liquid level sensor body (100), the external liquid level sensor body (100) comprising a water storage tank (101), a mounting plate (102) being arranged at one end of the water storage tank (101), a receiving column (103) being embedded at the middle position inside the mounting plate (102), a U-shaped floating plate (104) being arranged at the top end of the receiving column (103), a floating plate (105) being arranged at the end of the U-shaped floating plate (104) located inside the water storage tank (101), a limiting block (106) being arranged at the top end of one side of the U-shaped floating plate (104), an electromagnetic induction switch (107) and a scale being arranged at the top end of one side of the receiving column (103), characterized in that: The external liquid level sensor body (100) is also provided with: A fixed installation mechanism, wherein the fixed installation mechanism comprises a movable adjustment component arranged at the bottom end of the interior of the installation plate (102), a clamping and fixing component being arranged at the end of the movable adjustment component, and a rotating and fixing component being arranged at one side of the bottom end of the clamping and fixing component; The connecting mechanism comprises a disassembly and assembly connecting component arranged at the connection between the end of the U-shaped floating plate (104) and one end of the upper surface of the floating plate (105).

2. The external liquid level sensor according to claim 1, characterized in that: The movable adjustment component comprises a movable control groove (1033) opened at the bottom end of the mounting plate (102), a bidirectional screw (1034) is rotated inside the movable control groove (1033), the end of the bidirectional screw (1034) is located on the surface of the mounting plate (102) and a hand wheel (1032) is installed, and movable blocks (1036) are arranged at both ends of the bidirectional screw (1034).

3. The external liquid level sensor according to claim 2, characterized in that: The moving block (1036) matches the outer surface structure of the bidirectional screw (1034), and the two moving blocks (1036) are symmetrically arranged.

4. The external liquid level sensor according to claim 2, characterized in that: The clamping and fixing assembly comprises a movable support plate (1035) fixed to the end of a movable block (1036) by means of screws, and a clamping plate (1031) is provided on one side of the movable support plate (1035).

5. The external liquid level sensor according to claim 4, characterized in that: The rotating fixing assembly comprises a connecting plate (1037) integrally formed at the bottom end of one side of the movable supporting plate (1035), and a locking bolt (1038) is rotatably arranged inside the connecting plate (1037).

6. The external liquid level sensor according to claim 1, characterized in that: The disassembly connection assembly comprises a threaded column (1041) arranged at the end of a U-shaped floating plate (104), an external threaded mounting ring (1042) is arranged at the end of the threaded column (1041), an internal threaded structure (1043) is arranged on the inner surface of the external threaded mounting ring (1042), and an internal threaded mounting hole (1044) is provided on one end surface of the floating plate (105).

7. The external liquid level sensor according to claim 6, characterized in that: The external thread mounting ring (1042) and the U-shaped floating plate (104) are rotatably connected via the threaded column (1041) and the internal thread structure (1043), and the outer surface of the external thread mounting ring (1042) matches the inner surface structure of the internal thread mounting hole (1044).

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