Double-ball liquid measuring device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO JIANGBEI YAOLU ENVIRONMENTAL PROTECTION EQUIPMENT FACTORY
- Filing Date
- 2025-09-26
- Publication Date
- 2026-07-03
Smart Images

Figure CN224455928U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a dual-sphere liquid measuring device, which is mainly used to detect whether the upper layer of liquid in a container is excessive, and is especially suitable for places where oil-water separation is required. Background Technology
[0002] Currently, the grease traps on the market are relatively simple, consisting of three-compartment oil-water separators made of bricks or mesh. They only have the function of collecting oil. When the oil-water separator is full of oil, it cannot detect the fullness of oil in time and collect the oil in time, causing the oil to flow out of the grease trap and enter the city's sewer network, polluting the underground pipe network and making the underground pipe network more prone to blockage when there is grease.
[0003] Therefore, there is an urgent need for a detection device that can provide an alert when the amount of oil in the upper layer exceeds a preset threshold. Utility Model Content
[0004] To overcome the above-mentioned shortcomings, this invention provides a dual-sphere liquid measuring device that can detect whether the amount of upper oil has reached a critical value after oil-water separation.
[0005] The technical solution of this utility model is as follows:
[0006] A dual-sphere liquid measuring device includes an upper float, a lower float, a connector for connecting the upper and lower floats, a sensing mechanism, and a signal transmission module. The upper float floats on the surface of the upper liquid layer, and the lower float is suspended between the upper and lower liquid layers. That is, the density of the upper liquid layer is less than that of the lower liquid layer, the density of the upper float is less than that of the upper liquid layer, and the density of the lower float is greater than that of the upper liquid layer but less than that of the lower liquid layer. The sensing mechanism is disposed on the connector and is used to detect the change in distance between the upper and lower floats. When the distance between the upper and lower floats exceeds a set distance, the sensing mechanism transmits a detection signal to the signal transmission module. The signal transmission module transmits the received detection signal to a controller, which then performs the next action based on the actually connected alarm or indicator light.
[0007] Preferably, the sensing mechanism includes a tension sensor and a magnet, with a rope as the connecting element. The length of the rope is the set distance between the lower end of the upper float and the upper end of the lower float. The tension sensor is installed at the upper end of the rope, and the magnet is installed on the upper float. When the tension sensor and the magnet are close together, they can attract each other. The tension sensor is used to detect its attraction state with the magnet. When the liquid is mixed and not yet separated, and when the upper liquid layer is small, the rope is in a slack state. After separation, when the depth of the upper liquid layer increases, the upper float will rise with the liquid level of the upper liquid layer, and the distance between the upper and lower floats gradually increases, and the rope gradually tightens. When the depth of the upper liquid layer is greater than the length of the rope, the upper float continues to float, and the tension sensor will detach from the magnet. When the tension sensor and the magnet are pulled apart by an external force, the distance between the upper and lower floats is greater than the set distance of the rope length, and the tension sensor sends a disconnection detection signal to the signal transmission module.
[0008] As another preferred embodiment, the sensing mechanism includes a contact sensor, and the connecting member is a connecting rod. The upper end of the connecting rod is fixedly connected to the upper float, and the lower end passes through the lower float and connects to the contact sensor. That is, the lower float can slide on the connecting rod. The contact sensor is used to detect whether the lower float is in contact with it. The length of the connecting rod is the set distance between the lower ends of the upper and lower floats. When the liquid mixture is not yet separated and when the upper liquid layer is small, the lower float floats above the contact sensor. When the liquid separates and the depth of the upper liquid layer increases, the upper float rises with the liquid level of the upper liquid layer, while the lower float is suspended between the two lower liquid layers. As the upper float continues to rise with the connecting rod, the lower end of the lower float gradually approaches the contact sensor under the connecting rod. When the lower float contacts the contact sensor under the connecting rod, the distance between the upper and lower floats is greater than the set distance of the connecting rod length. The contact sensor transmits the contact detection signal to the signal transmission module. When the lower end of the lower float contacts the contact sensor under the connecting rod, the signal transmission module sends a contact detection signal. A limiting component is also provided on the connecting rod. The limiting component is located above the lower float and is used to limit the vertical sliding position of the lower float to prevent the upper and lower floats from colliding. The specific position can be set according to actual needs.
[0009] Preferably, the signal transmission module is located inside the upper floating ball to ensure better communication performance. The upper floating ball also contains a power supply, such as a battery, to power the sensing mechanism and the signal transmission module.
[0010] Preferably, the controller also includes a warning mechanism. The controller includes a signal receiving and processing module, which receives detection signals from the signal transmission module and controls the warning mechanism to operate upon receiving the signal.
[0011] Preferably, the warning mechanism is an alarm. After receiving the detection signal from the signal transmission module, the signal receiving and processing module controls the alarm to sound an alarm. After hearing the alarm, the operator can remove the upper layer of liquid. When the upper layer of liquid is removed, the distance between the upper and lower floats is less than the set value, and liquid measurement can continue.
[0012] The beneficial effects of this utility model are:
[0013] This invention features a simple structure and is easy to install; it can be used simply by placing it in a container. Furthermore, it sends a detection signal to the controller when the depth of the upper liquid exceeds a preset distance between the two floats. Upon receiving this signal, the controller activates an alarm mechanism to issue a warning. When this invention is applied to oil-water separation containers, if the oil level exceeds a preset value, an alarm will be issued to remind the user to remove the oil promptly. Attached Figure Description
[0014] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:
[0015] Figure 1 This is a schematic diagram of Example 1;
[0016] Figure 2 This is a cross-sectional view of Example 1;
[0017] Figure 3 This is a schematic diagram of the control and warning functions of this utility model;
[0018] Figure 4 This is a schematic diagram of Example 2;
[0019] Figure 5 This is a cross-sectional view of Example 2. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0021] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components; a fixed connection can be welded, screwed, or glued. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] Example 1
[0024] like Figure 1-3 The dual-sphere liquid measuring device shown includes an upper float 1, a lower float 2, a connector for connecting the upper and lower floats, a sensing mechanism, and a signal transmission module. To ensure better communication, the signal transmission module is located inside the upper float 1. The upper float 1 also contains a power supply 8, such as a battery, to power the sensing mechanism and the signal transmission module. The specific power supply method is existing technology and will not be described in detail here. The detection effect is better when the power supply is sufficient and the signal transmission strength is high.
[0025] The upper float 1 floats on the surface of the upper liquid layer, and the lower float 2 is suspended between the upper and lower liquid layers. That is, the density of the upper liquid layer is less than that of the lower liquid layer (e.g., water in the lower layer and oil in the upper layer), while the density of the upper float 1 is less than that of the upper liquid layer, and the density of the lower float 2 is greater than that of the upper liquid layer but less than that of the lower liquid layer. The sensing mechanism is set on the connector to detect the change in distance between the upper float 1 and the lower float 2. When the distance between the upper float 1 and the lower float 2 exceeds a set distance, the sensing signal is transmitted to the signal transmission module. The signal transmission module is used to transmit the received sensing signal to the controller. The controller includes a signal receiving and processing module, which is used to receive the sensing signal sent by the signal transmission module and control the alarm mechanism to act upon receiving the signal.
[0026] The sensing mechanism includes a tension sensor 4 and a magnet 5, with a rope 3 as the connecting element. The length of the rope is the set distance between the lower end of the upper float and the upper end of the lower float. The tension sensor 4 is installed at the upper end of the rope 3, and the magnet 5 is installed on the upper float 1. The tension sensor 4 and the magnet 5 can attract each other when they are close. The tension sensor 4 is used to detect its attraction state with the magnet 5. When the liquid is mixed and not yet separated, and when the upper liquid layer is small, the rope is in a slack state. After separation, when the depth of the upper liquid layer increases, the upper float will rise with the liquid level of the upper liquid layer, and the distance between the upper and lower floats will gradually increase, and the rope will gradually tighten. When the depth of the upper liquid layer is greater than the length d1 of the rope, the upper float continues to float, and the tension sensor will detach from the magnet. When the tension sensor 4 and the magnet 5 are pulled apart by an external force, the distance between the upper float 1 and the lower float 2 is greater than the set distance d1 of the rope length, and the tension sensor 4 sends a disconnection detection signal to the signal transmission module.
[0027] The warning mechanism is an alarm and / or a warning light. After receiving the detection signal from the signal transmission module, the signal receiving and processing module controls the alarm to sound an alarm and / or the warning light to flash. After being alerted, the operator can remove the upper layer of liquid. When the upper layer of liquid is removed, the distance between the upper and lower floats is less than the set value, and liquid measurement can continue.
[0028] Example 2
[0029] In this embodiment, except for the sensing mechanism and the rope, the structure is the same as in Embodiment 1. Figure 4-5 As shown, the sensing mechanism in this embodiment includes a contact sensor 6, and the connecting member is a connecting rod 3'. The upper end of the connecting rod 3' is fixedly connected to the upper float 1, and the lower end passes through the lower float 2 and is connected to the contact sensor 6. That is, the lower float can slide on the connecting rod 3'. The contact sensor 6 is used to detect whether the lower float 2 is in contact with it. The length d2 of the connecting rod 3' is the set distance between the lower ends of the upper float and the lower float. When the liquid is mixed and not separated into layers, and when the upper liquid layer is small, the lower float floats above the contact sensor. When the upper liquid layer becomes deeper after separation, the upper float will rise with the liquid level of the upper liquid layer, while the lower float will be suspended between the two liquid layers below. As the upper float continues to rise with the connecting rod, the lower end of the lower float will gradually approach the contact sensor under the connecting rod. When the lower float 2 contacts the contact sensor 6 under the connecting rod 3', the distance between the upper float 1 and the lower float 2 is greater than the set distance d2 of the connecting rod length. The contact sensor 6 transmits the contact detection signal to the signal transmission module. The lower end of the float makes contact with the contact sensor below the connecting rod, and the signal transmission module sends a contact detection signal.
[0030] A limiting component 7 is also provided on the connecting rod 3'. The limiting component 7 is located above the lower float 2 and is used to limit the position of the lower float sliding up and down, so as to avoid collision between the upper and lower floats. The specific position can be set according to actual needs.
[0031] This invention utilizes the difference in liquid density and the relative distance between floats to detect the depth of the upper liquid layer. Therefore, the detection effect is best when the liquids in the container are no longer flowing and are in a relatively stable state. At the same time, the greater the difference in density between the liquids, the better the detection effect.
[0032] When this invention is applied to containers for oil-water separation, the length of the rope or connecting rod can be determined according to the actual depth of the container and the amount of oil stored. The preset value only needs to be less than the amount of oil stored. If the amount of oil exceeds the preset value, this invention can issue a warning to remind the user to collect the oil in time.
[0033] Based on the above description and inspired by this utility model, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A dual ball liquid measuring device, characterized by, It includes an upper float (1), a lower float (2), a connector for connecting the upper and lower floats, a sensing mechanism, and a signal transmission module. The upper float (1) floats on the surface of the upper liquid, and the lower float (2) is suspended between the upper and lower liquids. The sensing mechanism is located on the connector and is used to detect the change in distance between the upper float (1) and the lower float (2). When the distance between the upper float (1) and the lower float (2) is greater than a set distance, the sensing mechanism transmits the detection signal to the signal transmission module. The signal transmission module is used to transmit the detection signal to the controller after receiving the detection signal.
2. The dual ball liquid testing device according to claim 1, wherein, The sensing mechanism includes a tension sensor (4) and a magnet (5), and the connecting element is a rope (3). The tension sensor (4) is installed at the upper end of the rope (3), and the magnet (5) is installed on the upper float (1). When the tension sensor (4) and the magnet (5) are close to each other, they can attract each other. The tension sensor (4) is used to detect its attraction state with the magnet (5). When the tension sensor (4) and the magnet (5) are separated, the distance between the upper float (1) and the lower float (2) is greater than the set distance of the rope (3), and the tension sensor (4) sends a disconnection detection signal to the signal transmission module.
3. The dual ball liquid testing device of claim 1, wherein, The sensing mechanism includes a contact sensor (6), and the connecting member is a connecting rod (3'). The upper end of the connecting rod (3') is fixedly connected to the upper float (1), and the lower end passes through the lower float (2) and is connected to the contact sensor (6). The contact sensor (6) is used to detect whether the lower float (2) is in contact with it. When the lower float (2) is in contact with the contact sensor (6) under the connecting rod (3'), the distance between the upper float (1) and the lower float (2) is greater than the set distance of the connecting rod. The contact sensor (6) transmits the contact detection signal to the signal transmission module.
4. The dual ball liquid measuring device of claim 3, wherein, A limiting member (7) is also provided on the connecting rod (3'), and the limiting member (7) is located above the lower float (2).
5. The dual ball liquid testing device of claim 1, wherein, The signal transmission module is located inside the upper float (1), and a power supply (8) for powering the sensing mechanism and the signal transmission module is also provided inside the upper float (1).
6. The dual ball liquid testing device of claim 1, wherein, It also includes a warning mechanism. The controller includes a signal receiving and processing module, which receives the detection signal sent by the signal transmission module and controls the warning mechanism to act after receiving the signal.
7. The dual ball liquid measuring device of claim 6, wherein, The warning mechanism is an alarm. After receiving the detection signal from the signal transmission module, the signal receiving and processing module controls the alarm to sound an alarm.