Tool for disassembling liquid level signal line
A tool with plastic plugs and screw threads aligns signal lines during replacement, addressing inefficiencies and damage in the signal line replacement process, enhancing production reliability.
Patent Information
- Application Number
- CN202422123690.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In open-pit mine safety facilities, liquid level signal lines are easily intermittently caused by different centers, which affects the production rhythm and poses safety hazards.
The plastic plug connector is used to dock the connection piece with the signal line and the hexagonal bolt is connected in reverse to the nut to maintain a concentric level to avoid damage caused by the signal line in the narrow gap.
The labor efficiency of replacing the signal line is improved, and production accidents such as damage to the signal line and unplanned casting machine are avoided, ensuring the integrity of the signal line.
Smart Images
Figure CN223099099U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a tool for disassembling a liquid level signal line, belonging to the technical field of safety facilities in open-pit mines. Background Technique
[0002] In the steelmaking plant of Xingtai Iron and Steel Co., Ltd., the molten steel liquid level detection of the No. 5 continuous caster is an important process parameter during the production of the continuous caster. The liquid level is generally controlled at 75% plus or minus 5%. When the liquid level exceeds the standard, it will cause production accidents such as steel leakage and steel overflow of the continuous caster, resulting in unplanned pouring stoppage. Therefore, the stability of the liquid level detection data is a necessary condition during production. The signal line (high-temperature coaxial cable with quick plugs at both ends) in the liquid level system is an important link for transmitting the radiation source signal received by the liquid level probe to the liquid level main unit. After the signal line ages or burns out, it often needs to be replaced. Due to the poor on-site environment, the signal line can only be passed through the narrow gap beside the mold, and the old signal line needs to be used as a threading tool to lead the new line. Otherwise, the signal line cannot pass through. In the past, instrument personnel used to tie the new line and the old line together with iron wire each time they replaced the signal line. There are certain drawbacks. Because the iron wire is too soft, the two signal lines are not concentric during the threading process and cannot pass through the narrow gap smoothly. It also needs to be pulled back and fixed again. Sometimes the above steps need to be repeated many times. When there are many people and there is no time pressure, it can be completed smoothly. When time is tight, there may be a hidden danger of affecting the production rhythm. And multiple strong pulls also have the hidden danger of damaging the internal insulation layer of the signal line, which may lead to damage to the signal line. Content of the Utility Model
[0003] The purpose of the utility model is to provide a tool for disassembling a liquid level signal line. By docking the connecting piece with the signal line, the signal lines on both sides of the connecting piece will not be knotted, ensuring the integrity of the signal line. During the disassembly process, the concentricity and horizontality of the connecting piece can always be maintained. Therefore, it is possible to avoid jamming caused by non-concentricity when passing through the narrow gap during the replacement process, improve labor efficiency, and effectively avoid production accidents such as unplanned pouring stoppage of the continuous caster caused by damage to the signal line due to strong pulling of the signal line caused by non-concentricity, effectively solving the problems existing in the background technique.
[0004] The technical solution of the utility model is: a tool for disassembling a liquid level signal line, including a mold, a probe, a signal line, a signal receiving device and a connecting piece. The connecting piece includes connecting piece one and connecting piece two. Connecting piece one and connecting piece two are plastic plugs. There are holes in the middle of connecting piece one and connecting piece two, and they are reversely docked through hexagon bolts and nuts. Connecting piece one and connecting piece two are respectively connected to the signal line.
[0005] Both connecting piece one and connecting piece two are male heads, and external threads are provided on their outer surfaces, and the external threads match the metal female heads of the signal line.
[0006] The lengths × diameters × pitches of the first connecting piece and the second connecting piece are 15 mm × 32 mm × 1.5 mm respectively.
[0007] A 1-mm gap is provided at the docking place of the first connecting piece and the second connecting piece.
[0008] The beneficial effects of the present utility model are as follows: By using the connecting piece to dock with the signal wire, the signal wires on both sides of the connecting piece will not be knotted, ensuring the integrity of the signal wire. During the disassembly process, the concentric levelness of the connecting piece can always be maintained. Therefore, it is possible to avoid the jamming caused by non-concentricity when passing through a narrow gap during the replacement process, improve labor efficiency, and at the same time effectively avoid production accidents such as unplanned stoppage of continuous casting due to damage to the signal wire caused by strong pulling of the signal wire due to non-concentricity. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic diagram of the process of replacing the signal wire of the present utility model;
[0010] Figure 2 It is a schematic diagram after the signal wire of the present utility model is replaced;
[0011] Figure 3 It is a schematic structural diagram of the connecting piece of the present utility model;
[0012] Figure 4 is Figure 3 A-A sectional view of;
[0013] In the figure: mold 1, probe 2, signal wire 3, signal receiving device 4, connecting piece 5, hexagon bolt 6, nut 7, external thread 8, starting end A where the in-use signal wire is connected to the probe, starting end A' where the removed signal wire is connected to the probe, terminal B where the in-use signal wire is connected to the signal receiving device, terminal B' where the removed signal wire is connected to the signal receiving device. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments. Obviously, the described embodiments are only a small part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0015] A tool for disassembling the liquid level signal line, comprising a mold 1, a probe 2, a signal line 3, a signal receiving device 4 and a connector 5. The connector 5 includes a first connector and a second connector. The first connector and the second connector are plastic plugs. There is a hole in the middle of the first connector and the second connector. They are reversely docked through a hexagon bolt 6 and a nut 7. The first connector and the second connector are respectively connected to the signal line 3.
[0016] Both the first connector and the second connector are male connectors, and there is an external thread 8 on their outer surfaces. The external thread 8 matches the metal female head of the signal line 3.
[0017] The lengths × diameters × pitches of the first connector and the second connector are 15 mm × 32 mm × 1.5 mm respectively.
[0018] There is a 1 mm gap at the docking place of the first connector and the second connector.
[0019] In practical applications, the replacement steps are as follows:
[0020] (1) Loosen and remove the A end and B end of the original signal line from the equipment respectively. After removal, the two ends of the signal line taken off the line are temporarily defined as the A' end and the B' end.
[0021] (2) The A' end of the removed signal line is docked with the second connector, and the B end of the new signal line is docked with the dedicated second connector.
[0022] (3) The instrument personnel slowly pull the original signal line B' end on the side of the signal line receiving device until the B end of the new signal line is pulled to a position where it can be connected to the receiving device.
[0023] (4) Remove the connector from the signal line.
[0024] (5) Dock the A end of the new signal line with the probe and the B end with the receiving device.
[0025] The structural composition of the present utility model includes two plastic plugs (male connectors) with lengths × diameters × pitches of (15 mm × 32 mm × 1.5 mm) (the threads of this plastic plug must exactly dock with the metal female heads at both ends of the liquid level signal line). Use a puncher to drill holes in the middle of the two plastic plugs respectively, dock the plastic plugs reversely, and use a hexagon bolt and a nut to fix the two plastic plugs together (leaving a 1 mm gap). The hexagon bolt can ensure that the two plastic plugs always remain concentric. The 1 mm gap between the two plastic plugs can ensure that when one plastic plug is turned, it will not drive the other plug to rotate together, resolving the acting force when the connector is docked with the signal line, so that the signal lines on both sides of the connector will not get knotted, ensuring the integrity of the signal line.
Claims
1. A tool for disassembling a liquid level signal line, characterized in that: It includes a mold (1), a probe (2), a signal line (3), a signal receiving device (4) and a connector (5). The connector (5) includes a first connector and a second connector. The first connector and the second connector are plastic plugs. There are holes in the middle of the first connector and the second connector, and they are reversely docked through a hexagon bolt (6) and a nut (7). The first connector and the second connector are respectively connected to the signal line (3).
2. The tool for disassembling the liquid level signal line according to claim 1, wherein: Both the first connector and the second connector are male connectors, and an external thread (8) is provided on their outer surfaces. The external thread (8) matches the female metal head of the signal line (3).
3. A tool for disassembling a liquid level signal line according to claim 1, characterized in that: The length × diameter × pitch of the first connector and the second connector are respectively 15 mm × 32 mm × 1.5 mm.
4. A tool for disassembling a liquid level signal line according to claim 1, characterized in that: A 1-mm gap is provided at the docking place of the first connector and the second connector.