Liquid level switch preventing wires from loosening

By setting grooves on the inner wall of the level switch and using hot melt adhesive to fix the signal line, combining the integrated structure design and reinforcement plate, the problem of easy falling off of the level switch signal line is solved, and the stability and overall strength of the equipment are improved.

CN222720250UActive Publication Date: 2025-04-04SHANGHAI HOPPY ELECTRONICS ELECTRIC APPLIANCE +1
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Patent Information

Application Number
CN202420720042.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-09
Publication Date
2025-04-04
Estimated Expiration
2034-04-09

AI Technical Summary

Technical Problem

The signal lines of existing liquid level switches lack a fixed structure and are prone to fall off for a long time, which affects the working stability of the liquid level switch.

Method used

A liquid level switch including a base, a reed switch, a signal line, and a float ball is designed. A groove is provided on the upper part of the inner wall of the catheter, and the hot melt glue is poured into the catheter, the reed switch and a signal line are fixed in the catheter, and the body and the catheter are designed as an integrated structure to add reinforcement plates to improve the overall strength.

Benefits of technology

The pull-off force of the reed switch signal line is enhanced, the working condition stability of the liquid level switch is improved, the strength of the overall structure is enhanced, the components are reduced, and the production efficiency is improved.

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Abstract

A liquid level switch for preventing wires from loosening comprises a base, a reed switch, a signal line and a float; wherein the base comprises a body, which is a plate body, comprising a base, a connecting part formed by bending and extending obliquely from the upper end of the base to one side, and a fixing part formed by horizontally extending from the outer end of the connecting part, wherein a mounting hole is arranged in the center of the fixing part; a conduit is vertically inserted into the mounting hole of the fixing part of the body, and a groove is arranged on the upper part of the inner wall of the conduit; the reed switch and the signal line are arranged in the conduit, and the reed switch and the signal line are fixed in the conduit by pouring hot melt adhesive into the conduit; a bottom cover is arranged at the bottom of the conduit; a reinforcing rib plate, one end of which is connected to the inner side surface of the base of the body, and the other end is connected to the outer wall of the conduit, and the upper end surface of the reinforcing rib plate is connected to the inner side surfaces of the connecting part and the fixing part of the body; the body, the conduit and the reinforcing rib plate are an integrated structure; a through hole is arranged in the center of the float, and is penetrated through the lower part of the conduit and limited by the bottom cover at the bottom of the conduit; a magnet matching the reed switch is embedded in the inner wall of the through hole of the float. The utility model enhances the pull-off force of the signal line of the reed switch and improves the working stability of the liquid level switch.
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Description

Technical Field

[0001] The utility model relates to a liquid level switch, in particular to a liquid level switch capable of preventing electric wires from loosening. Background Art

[0002] The function of the liquid level switch is to send an electrical signal to start the drainage device when the liquid level rises to a certain height; it also sends an electrical signal to close the drainage device when the liquid level drops to a certain height.

[0003] The existing liquid level switch is vertically assembled with a reed switch, which is inserted inside the body. The signal line on the reed switch lacks a fixed structure and is prone to fall off after long-term use, affecting the working stability of the liquid level switch. Utility Model Content

[0004] The purpose of the utility model is to design a liquid level switch that prevents wires from loosening, thereby enhancing the pull-out force of the reed switch signal line, improving the working stability of the liquid level switch, and improving the strength of the overall structure compared to the prior art.

[0005] In order to achieve the above object, the technical solution of the utility model is:

[0006] A liquid level switch for preventing wires from loosening, comprising a base, a reed switch, a signal line, and a float; wherein:

[0007] The base comprises:

[0008] The main body is a plate body, including a base, a connecting portion that is bent and obliquely extended from the upper end of the base to one side, and a fixing portion that is horizontally extended from the outer end of the connecting portion, and a mounting hole is provided in the center of the fixing portion;

[0009] The conduit is vertically inserted into the mounting hole of the fixing part of the body, and a groove is provided on the upper part of the inner wall of the conduit; the reed switch and the signal line are arranged in the conduit, and the reed switch and the signal line are fixed in the conduit by pouring hot melt adhesive into the conduit; a bottom cover is provided at the bottom of the conduit;

[0010] A reinforcing rib plate, one end of which is connected to the inner side surface of the base of the body, and the other end is connected to the outer wall of the conduit, and the upper end surface of the reinforcing rib plate is connected to the inner side surfaces of the connecting part and the fixing part of the body;

[0011] The body, the conduit and the reinforcing rib plate are an integrated structure;

[0012] A through hole is arranged in the center of the float, and is penetrated through the lower part of the conduit and limited by the bottom cover at the bottom of the conduit; a magnet matching with the reed switch is embedded in the inner wall of the through hole of the float.

[0013] Preferably, the outer wall of the conduit located below the fixing portion of the base body is provided with a plurality of reinforcing ribs connected to the bottom surface of the fixing portion in a circumferential direction.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model provides a groove on the upper part of the inner wall of the conduit, and hot melt adhesive is poured into the conduit. The outer wall of the solidified melt is embedded in the groove due to the groove on the upper part of the inner wall of the conduit to form a convex point, thereby enhancing the pulling force of the reed switch and the signal line covered by the melt, making it difficult to pull out from the conduit.

[0016] In addition, the utility model designs the main body and the catheter as an integrated structure, which has greater overall strength than the assembled structure of the prior art, and the catheter cannot be separated from the main body; in particular, the base, connecting part, and bottom surface of the fixing part of the main body are connected by a reinforcing rib plate, which, combined with the reinforcing ribs on the outer wall of the catheter, further improves the overall strength of the main body.

[0017] Furthermore, the base of the utility model adopts an integrated structural design, which reduces parts and components and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional embodiment of the utility model Figure 1 .

[0019] Figure 2 The three-dimensional embodiment of the utility model Figure 2 .

[0020] Figure 3 It is a front view of an embodiment of the utility model.

[0021] Figure 4 It is a half-section view of an embodiment of the utility model.

[0022] Figure 5 It is a three-dimensional exploded view of an embodiment of the utility model. DETAILED DESCRIPTION

[0023] See also Figure 1 to Figure 5 The utility model of the liquid level switch for preventing the wire from loosening comprises a base 1, a reed switch 2, a signal line 3, and a float 4; wherein,

[0024] The base 1 comprises:

[0025] The body 11 is a plate body, including a base 111, a connecting portion 112 that is bent and obliquely extended from the upper end of the base 111 to one side, and a fixing portion 113 that is horizontally extended from the outer end of the connecting portion 112, and a mounting hole 1131 is provided in the center of the fixing portion 113;

[0026] The conduit 12 is vertically inserted into the mounting hole 1131 of the fixing portion 113 of the body 1, and a groove 121 is provided on the upper inner wall of the conduit 12; the reed switch 2 and the signal line 3 are arranged in the conduit 12, and the hot melt adhesive 100 is poured into the conduit 12 to fix the reed switch 2 and the signal line 3 in the conduit 12; a bottom cover 13 is provided at the bottom of the conduit 12;

[0027] A reinforcing rib plate 14, one end of which is connected to the inner side surface of the base portion 111 of the body 11, and the other end is connected to the outer wall of the conduit 12, and the upper end surface of the reinforcing rib plate 14 is connected to the inner side surfaces of the connecting portion 112 and the fixing portion 113 of the body 11;

[0028] The body 11, the conduit 12, and the reinforcing rib plate 14 are an integrated structure;

[0029] The float 4 has a through hole 41 in the center, and is penetrated through the lower part of the conduit 12 and limited by the bottom cover 13 at the bottom of the conduit 12 ; a magnet 5 matching the reed switch 2 is embedded in the inner wall of the through hole 41 of the float 4 .

[0030] Preferably, the outer wall of the conduit 12 located below the fixing portion 113 of the main body 11 of the base 1 is provided with a plurality of reinforcing ribs 15 integrally connected to the bottom surface of the fixing portion 113 along the circumferential direction.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, a person skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A liquid level switch for preventing wires from loosening, comprising a base, a reed switch, a signal line, and a float; characterized in that: The base comprises: The main body is a plate body, including a base, a connecting portion that is bent and obliquely extended from the upper end of the base to one side, and a fixing portion that is horizontally extended from the outer end of the connecting portion, and a mounting hole is provided in the center of the fixing portion; The conduit is vertically inserted into the mounting hole of the fixing part of the body, and a groove is provided on the upper part of the inner wall of the conduit; the reed switch and the signal line are arranged in the conduit, and the reed switch and the signal line are fixed in the conduit by pouring hot melt adhesive into the conduit; a bottom cover is provided at the bottom of the conduit; A reinforcing rib plate, one end of which is connected to the inner side surface of the base of the body, and the other end is connected to the outer wall of the conduit, and the upper end surface of the reinforcing rib plate is connected to the inner side surfaces of the connecting part and the fixing part of the body; The body, the conduit and the reinforcing rib plate are an integrated structure; a through hole is provided in the center of the float, which is penetrated through the lower part of the conduit and is limited by the bottom cover at the bottom of the conduit; a magnet matching the reed switch is embedded in the inner wall of the through hole of the float.

2. The liquid level switch for preventing wires from loosening according to claim 1, characterized in that: The outer wall of the conduit located below the fixing part of the base body is provided with a plurality of reinforcing ribs connected to the bottom surface of the fixing part as a whole along the circumferential direction.