Liquid level transmitter convenient to maintain

Through the design of the interlocking and transmission structures, the level transmitter enables quick installation and disassembly by a single person, solving the problem of inconvenience in installation and disassembly requiring multiple people in the existing technology, and improving operational efficiency.

CN223840109UActive Publication Date: 2026-01-27SHANGHAI MENGHUI ELECTROMECHANICAL TECH CO LTD
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Patent Information

Application Number
CN202520417250.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-01-27
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

The existing level transmitters require multiple people to work together during installation, disassembly and maintenance, which makes operation inconvenient and inefficient.

Method used

A maintenance-friendly level transmitter was designed, employing a snap-fit ​​and transmission structure. It utilizes the cooperation of a flexible stainless steel plate and a fixed arc plate with a U-shaped plate, and is fixed to the pipe surface with bolts. It can be quickly installed and disassembled by a forward and reverse motor driving gears.

Benefits of technology

It enables a single person to easily install and remove the level transmitter, improving work efficiency and reducing the need for human resources.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223840109U_ABST
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Abstract

The utility model provides a liquid level transmitter convenient to maintain, which relates to the technical field of liquid level detection and comprises a liquid level transmitter body, the bottom of the liquid level transmitter body is fixedly connected with a wire connector, one side of the bottom of the wire connector is fixedly connected with a data transmission wire, and the bottom end of the data transmission wire is fixedly connected with a detection probe. According to the liquid conveying device, the control button is operated, the U-shaped plate is fixed to the surface of a pipeline for conveying liquid through mutual cooperation of the fixed arc plate and the two flexible stainless steel plates, then the surfaces of the two ends of the U-shaped plate are sleeved with the two inserting grooves, and then the four bolts are spirally embedded into the four threaded holes in a penetrating mode; the base and the U-shaped plate are clamped, fixed and limited, when the device needs to be maintained, only the four bolts need to be disassembled, then the liquid level transmitter body is held by hand, the base is pulled towards one side, and the two ends of the U-shaped plate are separated from the interiors of the two inserting grooves, so that disassembly can be completed, and follow-up maintenance is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of liquid level detection technology, and in particular to a liquid level transmitter that is easy to maintain. Background Technology

[0002] Level transmitters are an extension and development of pressure transmitter technology. Based on the principle that the pressure generated by liquids of different specific gravities at different heights is linearly related, they enable accurate measurement and transmission of the volume, liquid level, and weight of water, oil, and pastes.

[0003] In the prior art, such as the disclosure in CN221706677U, a level transmitter is included, comprising a transmitter body, a flexible metal conduit, and a pressure detection component. The transmitter body is connected to a mounting flange via a housing, and a wire connector is fixed to the bottom side of the mounting flange. The inner cavity of the flexible metal conduit is used for the passage of the wire, and a guide connector is detachably connected to one end of the flexible metal conduit. The other end of the flexible metal conduit is integrally welded to the housing of the pressure detection component. This invention uses a flexible metal conduit integrally welded to the housing of the pressure detection component, with no gaps at the connection points. It has the advantages of high temperature resistance and corrosion resistance, and can not only avoid the phenomenon of loose connection between the conduit and the pressure detection component, but also reduce the probability of leakage, thereby maintaining the working stability of the level transmitter and improving its service life.

[0004] However, in the process of using the above-mentioned patent, the liquid level transmitter is fixed to the position where liquid level detection is required by the mounting flange. However, when fixing it to the pipeline surface, it is extremely inconvenient for a single person to install it. On the other hand, when it is necessary to disassemble and maintain it, it is also inconvenient for a single person to disassemble and maintain it, requiring the assistance of other personnel, resulting in low work efficiency.

[0005] To address this issue, a level transmitter that is easy to maintain is proposed. Utility Model Content

[0006] The purpose of this invention is to solve the problems existing in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a level transmitter that is easy to maintain, comprising: a level transmitter body, a wire connector fixedly connected to the bottom of the level transmitter body, a data transmission line fixedly connected to one side of the bottom of the wire connector, a detection probe fixedly connected to the bottom end of the data transmission line, a locking structure fixedly connected to the other side of the bottom of the wire connector, the data transmission line and the locking structure not in contact with each other, a fixing structure provided on one side of the locking structure, a transmission structure provided at one end of the fixing structure, two flexible stainless steel plates movably embedded inside the transmission structure, and the other ends of the two flexible stainless steel plates movably embedded at the other end of the fixing structure.

[0008] In a preferred embodiment, a wiring port is provided on one side of the level transmitter body, and a protective cover and a data display screen are connected to the other side of the level transmitter body, with the data display screen located inside the protective cover.

[0009] In a preferred embodiment, the engaging structure includes a base, which is fixedly connected to the bottom end of the wire connector. Both ends of one side of the base are provided with insertion slots, and both ends of the base are provided with two threaded holes. Bolts are threaded into the interior of each of the four threaded holes.

[0010] In a preferred embodiment, the fixing structure includes a U-shaped plate, with both ends of the U-shaped plate movably embedded in the interior of two insertion slots. The four bolts are evenly divided into two groups, with the two groups of bolts movably penetrating the surfaces of both ends of the U-shaped plate. A fixing arc plate is fixedly connected to one side of the U-shaped plate, and a through groove is formed around the interior of the fixing arc plate. A limit frame is fixedly connected to one end of the inner cavity of the through groove, and two fixing bolts are threaded through and embedded at the other end of the fixing arc plate.

[0011] In a preferred embodiment, the transmission structure includes a transmission box, one side of which is fixedly connected to one end of a fixed arc plate. A battery compartment is fixedly connected to one side of the inner cavity of the transmission box. A control button is installed on one side of the transmission box, and a battery replacement port is provided on the other side of the transmission box. A storage battery is installed inside the battery compartment.

[0012] In a preferred embodiment, a motor base is fixedly connected to one side of the inner cavity of the transmission box, a forward and reverse motor is fixedly connected to one side of the motor base, a gear one is fixedly installed at the output end of the forward and reverse motor, a positioning shaft is fixedly installed on the other side of the inner cavity of the transmission box, and a gear two is installed at the other end of the positioning shaft through a bearing, and the gear one and gear two are meshed together.

[0013] In a preferred embodiment, both flexible stainless steel plates are movably embedded inside the transmission box. One end of each flexible stainless steel plate is fixedly connected to a limiting plate. One side of each flexible stainless steel plate is provided with a set of toothed grooves. The other end of each flexible stainless steel plate is provided with a through-hole. Both limiting plates are movably embedded inside the through grooves. Gear 1 and Gear 2 are respectively meshed with the two sets of toothed grooves. The two fixing bolts are respectively embedded inside the two fixing holes.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. This utility model features an operation control button. A U-shaped plate is fixed to the surface of a liquid conveying pipeline by the cooperation of a fixed arc plate and two flexible stainless steel plates. Then, two insertion slots are fitted onto the surfaces at both ends of the U-shaped plate. Finally, four bolts are screwed through and embedded into the four threaded holes to lock and fix the base and the U-shaped plate. This design facilitates individual operation and installation by the staff.

[0016] 2. When the device needs maintenance after long-term use, this utility model only requires removing the four bolts. Then, by holding the liquid level transmitter body, the base is pulled to one side so that the two ends of the U-shaped plate are disengaged from the two insertion slots. This design allows the staff to quickly and easily complete the disassembly, facilitating subsequent maintenance and improving work efficiency. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a level transmitter that is easy to maintain, provided by this utility model;

[0018] Figure 2 A front view of a level transmitter that is easy to maintain, provided by this utility model;

[0019] Figure 3 A schematic diagram of the engagement structure of a level transmitter that is easy to maintain, provided by this utility model;

[0020] Figure 4 A schematic diagram of the fixing structure of a level transmitter that is easy to maintain, provided by this utility model;

[0021] Figure 5 A schematic diagram of the transmission structure of a level transmitter that is easy to maintain, provided by this utility model;

[0022] Figure 6 A bottom view of the transmission structure of a level transmitter that is easy to maintain, provided by this utility model;

[0023] Figure 7A schematic diagram of a flexible stainless steel fixing belt structure for a level transmitter that is easy to maintain, provided by this utility model.

[0024] Legend:

[0025] 1. Level transmitter body; 101. Wiring port; 102. Protective cover; 103. Data display screen; 2. Wire connector; 3. Data transmission line; 4. Detection probe; 5. Snap-fit ​​structure; 501. Base; 502. Insertion slot; 503. Threaded hole; 504. Bolt; 6. Fixing structure; 601. U-shaped plate; 602. Fixing arc plate; 603. Through groove; 604. Limit frame; 605. Fixing bolt; 7. Transmission structure; 701. Transmission box; 702. Battery compartment; 703. Control button; 704. Battery replacement port; 705. Motor base; 706. Forward and reverse motor; 707. Gear 1; 708. Positioning shaft; 709. Gear 2; 8. Flexible stainless steel plate; 801. Limit plate; 802. Gear groove; 803. Fixing hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-7 This utility model provides a technical solution: a level transmitter that is easy to maintain, comprising: a level transmitter body 1, a wire connector 2 fixedly connected to the bottom of the level transmitter body 1, a data transmission line 3 fixedly connected to one side of the bottom of the wire connector 2, a detection probe 4 fixedly connected to the bottom end of the data transmission line 3, a locking structure 5 fixedly connected to the other side of the bottom of the wire connector 2, the data transmission line 3 and the locking structure 5 not contacting each other, a fixing structure 6 provided on one side of the locking structure 5, a transmission structure 7 provided at one end of the fixing structure 6, two flexible stainless steel plates 8 movably embedded inside the transmission structure 7, and the other ends of the two flexible stainless steel plates 8 movably embedded at the other end of the fixing structure 6.

[0028] Specifically: the level transmitter body 1 is used for data measurement, the wire connector 2 is used for connecting the parts, the data transmission line 3 is used for line connection, the detection probe 4 is used for data detection, the locking structure 5 cooperates with the fixing structure 6 for fixation, the fixing structure 6, the transmission structure 7 and the flexible stainless steel plate 8 cooperate with each other to fix the device on the pipe surface, and the flexible stainless steel plate 8 is made of deformable stainless steel.

[0029] In one embodiment, a wiring port 101 is provided on one side of the level transmitter body 1, and a protective cover 102 and a data display screen 103 are connected to the other side of the level transmitter body 1. The data display screen 103 is located inside the protective cover 102.

[0030] Specifically: the wiring port 101 is used for connecting data cables, the protective cover 102 is used to protect the data display screen 103, and the data display screen 103 is used to display the test data.

[0031] In one embodiment, the engaging structure 5 includes a base 501, which is fixedly connected to the bottom end of the wire connector 2. Both ends of one side of the base 501 are provided with insertion slots 502, and both ends of the base 501 are provided with two threaded holes 503. Bolts 504 are threadedly embedded in the interior of the four threaded holes 503.

[0032] Specifically: the insertion slot 502 is used to provide insertion space at both ends of the U-shaped plate 601, and the bolt 504 is used to fix and limit the U-shaped plate 601.

[0033] In one embodiment, the fixing structure 6 includes a U-shaped plate 601, with both ends of the U-shaped plate 601 movably embedded in the interior of two insertion slots 502. Four bolts 504 are evenly divided into two groups, with the two groups of bolts 504 movably penetrating the surfaces of both ends of the U-shaped plate 601. A fixing arc plate 602 is fixedly connected to one side of the U-shaped plate 601. A through groove 603 is provided around the interior of the fixing arc plate 602. A limit frame 604 is fixedly connected to one end of the inner cavity of the through groove 603, and two fixing bolts 605 are threaded through and embedded at the other end of the fixing arc plate 602.

[0034] Specifically: the through groove 603 provides movement space for both ends of the flexible stainless steel plate 8, the limiting frame 604 works with the limiting plate 801 to limit the movement of one end of the flexible stainless steel plate 8, preventing one end of the flexible stainless steel plate 8 from leaving the interior of the through groove 603, and the fixing bolt 605 is used to fix and limit the other end of the flexible stainless steel plate 8.

[0035] In one embodiment, the transmission structure 7 includes a transmission box 701, one side of which is fixedly connected to one end of a fixed arc plate 602, a battery compartment 702 is fixedly connected to one side of the inner cavity of the transmission box 701, a control button 703 is installed on one side of the transmission box 701, a battery replacement port 704 is provided on the other side of the transmission box 701, and a storage battery is provided inside the battery compartment 702.

[0036] Specifically: control button 703 is used to control the operation of forward and reverse motor 706, and battery replacement port 704 is used to replace the battery inside battery compartment 702.

[0037] In one embodiment, a motor base 705 is fixedly connected to one side of the inner cavity of the transmission box 701, a forward and reverse motor 706 is fixedly connected to one side of the motor base 705, a gear 707 is fixedly installed at the output end of the forward and reverse motor 706, a positioning shaft 708 is fixedly installed on the other side of the inner cavity of the transmission box 701, and a gear 709 is installed at the other end of the positioning shaft 708 through a bearing, and the gear 707 and the gear 709 are meshed together.

[0038] Specifically: the motor base 705 is used to fix the forward and reverse motor 706. The forward and reverse motor 706 drives the gear 1 707 to rotate. The gear 1 707 meshes with the gear 2 709 to drive the gear 2 709 to rotate.

[0039] In one embodiment, two flexible stainless steel plates 8 are movably embedded inside the transmission box 701. One end of each flexible stainless steel plate 8 is fixedly connected to a limiting plate 801. One side of each flexible stainless steel plate 8 is provided with a set of toothed grooves 802. The other end of each flexible stainless steel plate 8 is provided with a through-hole 803. The two limiting plates 801 are movably embedded inside the through groove 603. Gear 1 707 and gear 2 709 are respectively meshed with the two sets of toothed grooves 802. Two fixing bolts 605 are respectively embedded inside the two fixing holes 803.

[0040] Specifically: the forward and reverse motor 706 drives gear 1 707 to rotate, and then gear 1 707 meshes with gear 2 709 to drive gear 2 709 to rotate in the opposite direction. Gear 1 707 and gear 2 709 mesh with two sets of tooth grooves 802 respectively, driving two flexible stainless steel plates 8 to move in the same direction inside the transmission box 701.

[0041] Working principle: When installing and using the level transmitter, first unscrew the two fixing bolts 605, then wrap the fixing arc plate 602 and the two flexible stainless steel plates 8 around the surface of the pipeline conveying the liquid, then insert one end of the two flexible stainless steel plates 8 into one end of the inner cavity of the through groove 603, and then pass the surfaces of the two fixing bolts 605 through the interior of the two fixing holes 803 respectively.

[0042] Then, by operating the control button 703, the forward and reverse motor 706 starts working. The forward and reverse motor 706 drives gear 1 707 to rotate. Then, through gear 1 707 meshing with the toothed groove 802 located below, it drives one end of the flexible stainless steel plate 8 located below to move into the through groove 603. At the same time, through gear 1 707 meshing with gear 2 709, it drives gear 2 709 to rotate in the opposite direction. At the same time, through gear 2 709 meshing with the toothed groove 802 located above, it drives one end of the flexible stainless steel plate 8 located above to move into the through groove 603. Thus, through the cooperation of the fixed arc plate 602 and the two flexible stainless steel plates 8, the U-shaped plate 601 is fixed on the surface of the pipe for conveying liquid.

[0043] Then, the two insertion slots 502 are fitted onto the surfaces at both ends of the U-shaped plate 601, and then the four bolts 504 are spirally inserted into the four threaded holes 503 to lock and fix the base 501 and the U-shaped plate 601. This setting makes it easy for staff to perform individual operation and installation.

[0044] After fixing the level transmitter body 1 to the surface of the pipeline conveying the liquid, install the control box used with the device, then connect the connecting wires through the wiring port 101, and finally insert the data transmission line 3 and the detection probe 4 into the liquid tank to be detected. When the device needs maintenance after long-term use, simply remove the four bolts 504, then hold the level transmitter body 1 and pull the base 501 to one side so that the two ends of the U-shaped plate 601 are disengaged from the two insertion slots 502 to complete the disassembly. This design allows the staff to quickly and easily complete the disassembly, facilitates subsequent maintenance, and improves work efficiency.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A level transmitter that is easy to maintain, characterized in that, include: A level transmitter body (1) is provided. A wire connector (2) is fixedly connected to the bottom of the level transmitter body (1). A data transmission line (3) is fixedly connected to one side of the bottom of the wire connector (2). A detection probe (4) is fixedly connected to the bottom end of the data transmission line (3). A locking structure (5) is fixedly connected to the other side of the bottom of the wire connector (2). The data transmission line (3) and the locking structure (5) do not contact each other. A fixing structure (6) is provided on one side of the locking structure (5). A transmission structure (7) is provided at one end of the fixing structure (6). Two flexible stainless steel plates (8) are movably embedded inside the transmission structure (7). The other ends of the two flexible stainless steel plates (8) are movably embedded at the other end of the fixing structure (6).

2. The easy-to-maintain level transmitter according to claim 1, characterized in that: A wiring port (101) is provided on one side of the liquid level transmitter body (1), and a protective cover (102) and a data display screen (103) are connected to the other side of the liquid level transmitter body (1). The data display screen (103) is located inside the protective cover (102).

3. The easy-to-maintain level transmitter according to claim 1, characterized in that: The engaging structure (5) includes a base (501), which is fixedly connected to the bottom end of the wire connector (2). Both ends of one side of the base (501) are provided with insertion slots (502), and both ends of the base (501) are provided with two threaded holes (503). The four threaded holes (503) are threaded with bolts (504).

4. The easy-to-maintain level transmitter according to claim 3, characterized in that: The fixing structure (6) includes a U-shaped plate (601), with both ends of the U-shaped plate (601) being movably embedded in the interior of two insertion slots (502). The four bolts (504) are divided into two groups, with the two groups of bolts (504) movably penetrating the surfaces of both ends of the U-shaped plate (601). A fixing arc plate (602) is fixedly connected to one side of the U-shaped plate (601). A through groove (603) is provided around the interior of the fixing arc plate (602). A limit frame (604) is fixedly connected to one end of the inner cavity of the through groove (603), and two fixing bolts (605) are threaded through and embedded at the other end of the fixing arc plate (602).

5. The easy-to-maintain level transmitter according to claim 4, characterized in that: The transmission structure (7) includes a transmission box (701), one side of which is fixedly connected to one end of a fixed arc plate (602). A battery compartment (702) is fixedly connected to one side of the inner cavity of the transmission box (701). A control button (703) is installed on one side of the transmission box (701). A battery replacement port (704) is provided on the other side of the transmission box (701). A storage battery is installed inside the battery compartment (702).

6. The easy-to-maintain level transmitter according to claim 5, characterized in that: A motor base (705) is fixedly connected to one side of the inner cavity of the transmission box (701), and a forward and reverse motor (706) is fixedly connected to one side of the motor base (705). A gear one (707) is fixedly installed at the output end of the forward and reverse motor (706). A positioning shaft (708) is fixedly installed on the other side of the inner cavity of the transmission box (701). A gear two (709) is installed at the other end of the positioning shaft (708) through a bearing. The gear one (707) and the gear two (709) are meshed together.

7. A level transmitter that is easy to maintain according to claim 6, characterized in that: Both flexible stainless steel plates (8) are movably embedded inside the transmission box (701). One end of each flexible stainless steel plate (8) is fixedly connected to a limiting plate (801). One side of each flexible stainless steel plate (8) is provided with a set of toothed grooves (802). The other end of each flexible stainless steel plate (8) is provided with a through hole (803). Both limiting plates (801) are movably embedded inside the through groove (603). Gear 1 (707) and gear 2 (709) are respectively meshed with the two sets of toothed grooves (802). Two fixing bolts (605) are respectively embedded inside the two fixing holes (803).

Citation Information

Patent Citations

  • Liquid level transmitter

    CN221706677U