A cable float level switch
By employing a double-layer shell structure and a sealed design, the problem of malfunction in cable float level switches when liquid seeps in has been solved, extending service life and reducing maintenance costs, while achieving higher waterproofing capabilities and structural stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU SHITONG ELECTRIC
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-21
AI Technical Summary
Existing cable float level switches are prone to malfunction when liquid seeps in, resulting in shorter detection intervals, shorter service life than expected, and high maintenance costs.
The device employs a double-layer housing structure, sealing the microswitches within the housing using sealing rings and fixing blocks. The fit between the plug-in part and the plug slot, connecting hole and connecting pin enhances the stability and sealing of the housing connection. The partitions are used to store the microswitches in separate areas to enhance structural strength.
It extends the service life of microswitches, reduces the impact of water seepage, lowers maintenance costs, and improves the waterproofing and structural stability of equipment.
Smart Images

Figure CN224536957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid level switch technology, specifically a cable float liquid level switch. Background Technology
[0002] Currently, most cable float level switches on the market have their internal micro-motion structure directly installed inside the housing. When liquid seeps in, this can not only cause malfunctions but also shorten the detection interval, resulting in a shorter-than-expected lifespan. Therefore, this invention aims to provide a waterproof structure for cable float level switches that solves these problems, extends their lifespan, and reduces maintenance costs. Utility Model Content
[0003] The purpose of this invention is to provide a cable float level switch to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a cable float level switch, comprising a housing and a micro switch installed inside the housing; wherein the housing comprises a first housing and a second housing, and the micro switch is sealed inside the housing by closing the first housing and the second housing.
[0005] As a preferred technical solution of this utility model: after the first housing and the second housing are closed, the connection between the first housing and the second housing is sealed by a sealing ring.
[0006] As a preferred technical solution of this utility model: both the first housing and the second housing are provided with mounting cavities, and the fixing block is fixed inside the outer shell by closing the first housing and the second housing.
[0007] As a preferred technical solution of this utility model: the fixing block is further provided with a wire harness groove, and the power wire of the micro switch is fixed in the mounting cavity by means of the wire harness groove.
[0008] As a preferred technical solution of this utility model: both the first housing and the second housing are provided with a plug-in part and a plug-in groove on their facing surfaces. The first housing and the second housing are connected by adapting the plug-in part on the first housing to the plug-in groove on the second housing.
[0009] As a preferred technical solution of this utility model: a connecting hole is provided on one side of the inner wall surface of the first housing and the second housing, and a connecting pin is provided on the other side of the inner wall surface of the first housing and the second housing.
[0010] As a preferred technical solution of this utility model: both the first housing and the second housing are provided with a first partition; wherein, a second partition is provided on one side of the first partition, and a third partition is provided on the other side of the first partition, and a fourth partition is provided on one side of the third partition.
[0011] The beneficial effects of this utility model by adopting the above technical solution are as follows: Since the micro switch is installed inside the housing, the waterproof capabilities of the housing and the micro switch itself can be utilized to give the device preliminary waterproofing capabilities, thereby extending the service life of the micro switch. Simultaneously, it effectively protects the micro switch, reducing the impact of water seepage and minimizing damage caused by impacts through the housing's contact with the outside environment. Attached Figure Description
[0012] Figure 1 This is an exploded view of the main structure of this utility model; Figure 2 This is a schematic diagram of the main structure of the first shell of this utility model; Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.
[0013] In the figure: 1. First housing; 10. First partition; 11. Second partition; 12. Mounting cavity; 13. Third partition; 14. Fourth partition; 15. Insertion part; 16. Insertion groove; 17. Connecting pin; 18. Connecting hole; 2. Second housing; 3. Sealing ring; 4. Fixing block; 5. Micro switch; 6. Wire harness groove. Detailed Implementation
[0014] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this 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, and therefore should not be construed as limiting this utility model.
[0015] Please see Figures 1-3This utility model provides an embodiment of a cable float level switch, comprising a housing and a micro switch 5 installed within the housing; wherein the housing includes a first housing 1 and a second housing 2, and the micro switch 5 is sealed within the housing by the closure of the first housing 1 and the second housing 2. In summary, because the micro switch 5 is installed inside the housing, the waterproof capabilities of the housing and the micro switch itself can be utilized to provide the device with preliminary waterproofing, thereby extending the service life of the micro switch.
[0016] Furthermore, since the first housing 1 and the second housing 2 are sealed together by the sealing ring 3, the connection between the first housing 1 and the second housing 2 is further sealed, thereby improving the waterproof capability of the housing and further ensuring the service life of the micro switch 5. At the same time, it can effectively protect the micro switch, firstly reducing the impact of water seepage on the micro switch; secondly, by utilizing the contact between the housing and the outside, it reduces the damage to the micro switch caused by impact.
[0017] Furthermore, since both the first housing 1 and the second housing 2 are provided with mounting cavities 12, the fixing block 4 is fixed inside the housing by closing the first housing 1 and the second housing 2; the fixing block 4 is also provided with a wire harness groove 6, and the power cord of the micro switch 5 is fixed inside the mounting cavity 12 by the wire harness groove 6 being sleeved outside the power cord of the micro switch 5.
[0018] In summary, the fixing block 4 can be used to fix the wiring harness of the micro switch 5 to prevent the micro switch 5 from shaking inside the housing. At the same time, the fixing block 4 can also be used to support the housing from the inside to ensure the structural strength of the housing.
[0019] Based on the above solution, since both the first housing 1 and the second housing 2 have a plug-in portion 15 and a plug-in groove 16 on their facing surfaces, the first housing 1 and the second housing 2 are connected by the plug-in portion 15 on the first housing 1 and the plug-in groove 16 on the second housing 2. Therefore, by using the matching connection of the plug-in portion 15 and the plug-in groove 16, the connection of the two housings is more stable, avoiding misalignment between the two housings and reducing the problem of damage to the sealing at the connection of the housings during assembly. In addition, the plug-in portion 15 and the plug-in groove 16 are connected end to end, so when the two housings are closed, the mutual cooperation of the plug-in portion 15 and the plug-in groove 16 can also be used to improve the sealing at the connection of the housings.
[0020] Furthermore, since the first housing 1 and the second housing 2 have a connecting hole 18 on one side of their inner wall surfaces and a connecting pin 17 on the other side of their inner wall surfaces, the two housings can be smoothly connected during assembly, and the edge structure strength of the two housings can be strengthened.
[0021] Furthermore, both the first housing 1 and the second housing 2 are provided with a first partition 10; wherein, a second partition 11 is provided on one side of the first partition 10, and a third partition 13 is provided on the other side of the first partition 10, and a fourth partition 14 is provided on one side of the third partition 13.
[0022] The partitions clearly define the internal divisions of the two housings, allowing the fixing block 4 and micro switch 5 to be stored separately. In particular, the partitions are distributed inside the first housing 1 and the second housing 2, which enhances the structural strength of each housing and reduces the risk of damage to the outer shell due to impact when the equipment floats up and down.
[0023] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A cable float ball liquid level switch characterized by: The device includes a housing and a micro switch (5) installed inside the housing; wherein the housing includes a first housing (1) and a second housing (2), and the micro switch (5) is sealed inside the housing by closing the first housing (1) and the second housing (2).
2. A cable float level switch according to claim 1, characterised in that: After the first housing (1) and the second housing (2) are closed, the connection between the first housing (1) and the second housing (2) is sealed by the provided sealing ring (3).
3. A cable float level switch according to claim 1, wherein: Both the first housing (1) and the second housing (2) are provided with mounting cavities (12), and the fixing block (4) is fixed inside the outer shell by closing the first housing (1) and the second housing (2).
4. A cable float level switch according to claim 3, characterised in that: The fixing block (4) is also provided with a wire harness groove (6), and the wire harness groove (6) is used to fit the power line of the micro switch (5) to fix the power line of the micro switch (5) inside the mounting cavity (12).
5. A cable float level switch according to any one of claims 1-4, characterized in that: Both the first housing (1) and the second housing (2) have a plug-in part (15) and a plug-in groove (16) on their facing surfaces. The plug-in part (15) on the first housing (1) and the plug-in groove (16) on the second housing (2) are adapted to connect to achieve the connection between the first housing (1) and the second housing (2).
6. A cable float level switch according to claim 5, characterised in that: A connecting hole (18) is provided on one side of the inner wall surface of the first housing (1) and the second housing (2), and a connecting pin (17) is provided on the other side of the inner wall surface of the first housing (1) and the second housing (2).
7. A cable float level switch according to claim 6, characterised in that: Both the first housing (1) and the second housing (2) are provided with a first partition (10); wherein, a second partition (11) is provided on one side of the first partition (10), and a third partition (13) is provided on the other side of the first partition (10), and a fourth partition (14) is provided on one side of the third partition (13).