Capacitive liquid level meter and top sealing and positioning structure for same
A technology of positioning structure and liquid level gauge, which is applied in the direction of liquid level indicator, liquid level indicator, liquid/fluid solid measurement and other directions of physical variable measurement, which can solve the problems of low production efficiency, high production cost, inconvenient disassembly, etc. Achieve the effect of high concentricity, excellent performance and convenient installation
Pending Publication Date: 2019-12-13
SHENZHEN SAIMAI TECH CO LTD
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Problems solved by technology
[0004] The object of the present invention is to provide a top sealing positioning structure and a liquid level sensor for a capacitive liquid level gauge, which aims to solve the gap between the top sealing positioning structure and the top of the positive tube of the capacitive liquid level gauge in the prior art. Generally, it is fixed and connected by welding or extrusion, which will be inconvenient to disassemble, low production efficiency and high production cost.
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0029] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.
[0030] It should also be...
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The invention discloses a capacitive liquid level meter and a top sealing and positioning structure for the same. The top sealing and positioning structure comprises a sealing and positioning plug, afirst sealing ring and a second sealing ring, the sealing positioning plug is provided with a first installation column used for sleeving and fixing a cathode tube of the capacitive liquid level meterand a second installation column used for sleeving and fixing an anode tube of the capacitive liquid level meter, the first installation column and the second installation column are coaxially arranged, a first annular groove and a first mechanical sealing structure are arranged on the outer sidewall of the first installation column, a second annular groove and a second mechanical sealing structure are arranged on the outer sidewall of the second installation column, the first sealing ring is embedded into the first annular groove, and the second sealing ring is embedded into the second annular groove. The top sealing and positioning structure disclosed by the invention can realize mounting and positioning of the anode tube and the cathode tube, meets the concentricity requirement for theanode tube and the cathode tube, can realize double sealing of the anode tube and the cathode tube, and is simple in manufacture and low in cost.
Description
technical field [0001] The invention relates to the structural technical field of capacitive liquid level gauges, in particular to a top sealing and positioning structure for capacitive liquid level gauges and the capacitive liquid level gauge. Background technique [0002] The capacitive liquid level gauge in the prior art includes a positive electrode tube and a negative electrode tube. The positive electrode tube is installed in the negative electrode tube. There is an opening at the bottom of the tank, through which a liquid medium of height H can be filled between the positive tube and the negative tube, and the capacitance formed by the capacitive liquid level gauge will change with the change of the liquid level height H. [0003] In order to facilitate fixing, the top sealing positioning structure and the top of the positive tube, the top mounting flange and the top of the negative tube are generally fixedly connected by welding or extrusion, but this is not easy to ...
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IPC IPC(8): G01F23/26
CPCG01F23/263
Inventor 万楚华
Owner SHENZHEN SAIMAI TECH CO LTD