Target flow switch
By using snap-fit fixing box and viscous filler to fix the reed switch in the target flow switch, the problems of slip wire and poor contact in the prior art are solved, and maintenance costs and quality hazards are reduced.
Patent Information
- Application Number
- CN202421547150.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-02
AI Technical Summary
In the existing target flow switch, screws are used to fix the reed tube and the body cylinder, which can easily cause slip wires and increase maintenance costs; and the reed switch is not positioned in the reed tube, resulting in displacement, resulting in poor contact and increasing quality hazards.
Use snaps to abut the inner wall of the through-hole of the body cylinder to fix the box body to avoid slip wires; place the reed switch in the storage tank inside the box body, and fix it with adhesive filler to avoid displacement.
It effectively avoids slip wires in the connection parts and reduces maintenance costs; by fixing the reed switch, poor contact is avoided and hidden dangers of quality are reduced.
Smart Images
Figure CN222749394U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fluids, in particular to a target flow switch. Background Art
[0002] The target flow switch is installed on the pipeline to measure the flow rate in the pipeline. When the flow rate in the pipeline reaches a predetermined value, the target flow switch is turned on and off, thereby transmitting an electrical signal to the control mainboard.
[0003] In the target current switch in the prior art, the reed tube and the main body are fixed with screws, which is easy to cause thread slippage and increase maintenance costs; and the reed switch is not positioned in the reed tube, resulting in displacement of the reed switch during use, making it difficult to be accurately magnetized, resulting in poor contact and increasing quality risks. Utility Model Content
[0004] The utility model aims to provide a target current switch to solve the problems in the prior art that the reed tube and the main body tube are fixed with screws, which is easy to cause thread slippage; the reed switch is not positioned in the reed tube, which is easy to cause poor contact, thereby reducing maintenance costs and avoiding quality risks.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] Target flow switch, including:
[0007] A main body tube, a box body and a reed switch, wherein the main body tube extends along a first direction and is closed at one end, a first through hole is provided at the closed end of the main body tube, a second through hole is provided on the peripheral side of the main body tube close to the closed end, and the central axis of the first through hole and the central axis of the second through hole are arranged at an angle; the box body is inserted into the main body tube along a second direction, the second direction is perpendicular to the first direction, a buckle is provided on the box body, and the buckle can abut against the inner walls of the first through hole and the second through hole to fix the box body to the main body tube; a storage groove is provided in the box body, the reed switch is placed in the storage groove, and a viscous filler is provided between the reed switch and the inner wall of the storage groove.
[0008] As an optional technical solution for the target flow switch, the target flow switch also includes a water flow blade, which extends along the first direction and is partially placed in the main body tube. A first magnet is provided at one end of the water flow blade close to the box body, and the water flow blade can drive the first magnet to move in a direction close to or away from the inner wall of the main body tube.
[0009] As an optional technical solution for the target flow switch, the water flow blades are made of elastic material.
[0010] As an optional technical solution of the target flow switch, the target flow switch also includes a protective cover, one end of which is closed, and the closed end of the protective cover is connected to the open end of the main body tube through a connecting piece to seal the main body tube, and the closed end of the protective cover is provided with a third through hole, and the remaining part of the water flow blade extending along the first direction is placed in the protective cover through the third through hole.
[0011] As an optional technical solution for the target flow switch, the open end of the main body tube is provided with an abutment platform, the outer side of the closed end of the protective sleeve is provided with a thread, the connecting piece is configured as a nut, the inner end face of the nut can abut against the surface of the abutment platform, and the nut can be threadedly connected to the protective sleeve.
[0012] As an optional technical solution for the target current switch, a second magnet is arranged on the peripheral side of the main body tube, and two second magnets are evenly spaced around the axial direction of the main body tube. The second magnet can attract the first magnet when the first magnet approaches.
[0013] As an optional technical solution of the target current switch, a magnet cover is arranged outside the second magnet, and an upper end of the magnet cover has an opening.
[0014] As an optional technical solution for the target flow switch, a fixing component is provided at the open end of the main body tube, and the fixing component includes a fixing column, a fourth through hole is provided on the fixing column along the second direction, and a plug-in rod is provided on the water flow blade along the second direction, and the plug-in rod can be inserted into the fourth through hole.
[0015] As an optional technical solution of the target current switch, the box body contains a circuit board, and the circuit board is arranged above the reed switch and is electrically connected to the reed switch.
[0016] As an optional technical solution for the target current switch, the target current switch includes a connecting wire, one end of which is placed in the box body and electrically connected to the circuit board.
[0017] Beneficial effects of the utility model:
[0018] The utility model provides a target flow switch, including a main body tube, a box body and a reed switch, wherein the main body tube extends along a first direction and is closed at one end, a first through hole is provided at the closed end of the main body tube, a second through hole is provided at the peripheral side of the main body tube near the closed end, and the central axis of the first through hole and the central axis of the second through hole are arranged at an angle; the box body is inserted into the main body tube along a second direction, the second direction is perpendicular to the first direction, a buckle is provided on the box body, and the buckle can abut against the inner walls of the first through hole and the second through hole to fix the box body to the main body tube; a storage groove is provided in the box body, the reed switch is placed in the storage groove, and a viscous filler is provided between the reed switch and the inner wall of the storage groove. The buckle is used to abut against the inner wall of the first through hole, thereby connecting the main body tube and the box body, avoiding thread slippage at the connection part, and reducing maintenance costs; the reed switch is arranged in the storage groove, and the viscous filler is used to fix the reed switch, avoiding poor contact caused by displacement of the reed switch, and avoiding quality risks. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.
[0020] Figure 1 It is a schematic diagram of the structure of the target current switch provided by the embodiment of the utility model;
[0021] Figure 2 It is a cross-sectional view of a target current switch provided by an embodiment of the utility model.
[0022] In the figure:
[0023] 10. Main body tube; 11. Second magnet; 12. Magnet cover; 20. Box body; 21. Buckle; 30. Reed switch; 40. Water flow blade; 41. First magnet; 50. Protective cover; 60. Connector; 70. Fixing assembly; 71. Fixing column; 72. Snap-on column; 80. Circuit board; 90. Connecting wire. DETAILED DESCRIPTION
[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.
[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0027] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.
[0028] In the target current switch in the prior art, the reed tube and the main body are fixed with screws, which is easy to cause thread slippage and increase maintenance costs; and the reed switch is not positioned in the reed tube, resulting in displacement of the reed switch during use, making it difficult to be accurately magnetized, resulting in poor contact and increasing quality risks.
[0029] To solve the above problems, this embodiment provides a target current switch. Figure 1 and Figure 2, including a main body tube 10, a box body 20 and a reed switch 30, the main body tube 10 extends along a first direction and is closed at one end, a first through hole is provided at the closed end of the main body tube 10, a second through hole is provided on the peripheral side of the main body tube 10 close to the closed end, and the central axis of the first through hole and the central axis of the second through hole are arranged at an angle; the box body 20 is inserted into the main body tube 10 along a second direction, the second direction is perpendicular to the first direction, a buckle 21 is provided on the box body 20, the buckle 21 can abut against the inner walls of the first through hole and the second through hole to fix the box body 20 to the main body tube 10; a storage groove is provided in the box body 20, the reed switch 30 is placed in the storage groove, and a viscous filler is provided between the reed switch 30 and the inner wall of the storage groove. The buckle 21 is used to abut against the inner wall of the first through hole to connect the main body tube 10 and the box body 20, thereby avoiding thread slippage at the connection part and reducing maintenance costs; the reed switch 30 is set in the storage slot, and the reed switch 30 is fixed with a viscous filler to avoid poor contact caused by displacement of the reed switch 30 and avoid quality risks. Specifically, the viscous filler is set to a resin material to increase the fixing stability of the reed switch 30.
[0030] Further, the target flow switch also includes a water flow blade 40, which extends along a first direction and is partially placed in the main body tube 10. A first magnet 41 is provided at one end of the water flow blade 40 close to the box body 20, and the water flow blade 40 can drive the first magnet 41 to move in a direction close to or away from the inner wall of the main body tube 10. Specifically, the water flow blade 40 is set to an elastic material, such as polyphenylether Oxide (PPO). Exemplarily, when the water flow velocity is large, the water flow drives the water flow blade 40 to swing, and the water flow blade 40 drives the first magnet 41 close to the inner wall of the main body tube 10, thereby magnetizing the reed switch 30, and the reed switch 30 sends a signal.
[0031] Further, the target current switch further comprises a protective cover 50, one end of which is closed, and the closed end of the protective cover 50 is connected to the open end of the main body tube 10 through a connector 60 to seal the main body tube 10, and a third through hole is provided at the closed end of the protective cover 50, and the remaining portion of the water flow blade 40 extending along the first direction is placed in the protective cover 50 through the third through hole. The water flow impacts the water flow blade 40 in the protective cover 50, thereby driving the water flow blade 40 to swing, and preventing the water flow from entering the main body tube 10 to damage the first magnet 41.
[0032] Specifically, the open end of the main body tube 10 is provided with an abutment platform, the closed end of the protective sleeve 50 is provided with a thread, the connector 60 is provided as a nut, the inner end surface of the nut can abut against the surface of the abutment platform, and the nut can be threadedly connected with the protective sleeve 50. In this embodiment, the nut is provided as a plastic nut. In other embodiments, the main body tube 10 and the protective sleeve 50 can be riveted or screwed.
[0033] Furthermore, a second magnet 11 is disposed on the circumferential side of the body tube 10, and two second magnets 11 are evenly spaced around the axial direction of the body tube 10. The second magnet 11 can attract the first magnet 41 when the first magnet 41 approaches. When the first magnet 41 approaches the second magnet 11, the second magnet 11 attracts the first magnet 41 to the inner wall of the body tube 10, so that the first magnet 41 enters the range of the reed switch 30 and magnetizes the reed switch 30.
[0034] Furthermore, a magnet cover 12 is disposed outside the second magnet 11 , and an opening is provided at the upper end of the magnet cover 12 . The second magnet 11 can enter the magnet cover 12 through the opening, and the magnet cover 12 can protect the second magnet 11 .
[0035] Further, a fixing assembly 70 is provided at the open end of the main body tube 10, and the fixing assembly 70 includes a fixing column 71, and a fourth through hole is provided on the fixing column 71 along the second direction, and a plug-in rod is provided on the water flow blade 40 along the second direction, and the plug-in rod can be inserted into the fourth through hole, so as to fix the water flow blade 40. Further, a clamping column 72 is provided above the fixing column 71, and a groove is provided on the clamping column 72. A protruding bump is provided in the main body tube 10, and the bump and the groove can be engaged to fix the clamping column 72. The end surface of the clamping column 72 and the closed end of the protective sleeve 50 abut against the fixing column 71 together, so as to fix the fixing column 71 in the main body tube 10.
[0036] Furthermore, a circuit board 80 is placed in the box body 20, and the circuit board 80 is arranged above the reed switch 30 and is electrically connected to the reed switch 30. The target flow switch includes a connecting wire 90, one end of which is placed in the box body 20 and is electrically connected to the circuit board 80. The circuit board 80 transmits the signal of the reed switch 30 through the connecting wire 90, thereby transmitting the water flow velocity signal.
[0037] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.
Claims
1. Target current switch, characterized in that: include: A main body tube (10), the main body tube (10) extending in a first direction and having one end closed, the closed end of the main body tube (10) being provided with a first through hole, the circumferential side of the main body tube (10) being close to the closed end being provided with a second through hole, the central axis of the first through hole and the central axis of the second through hole being arranged at an angle; A box body (20), the box body (20) is inserted into the main body tube (10) along a second direction, the second direction is perpendicular to the first direction, and a buckle (21) is provided on the box body (20), and the buckle (21) can abut against the inner walls of the first through hole and the second through hole to fix the box body (20) to the main body tube (10); A reed switch (30), wherein a storage groove is provided in the box body (20), the reed switch (30) is placed in the storage groove, and a viscous filler is provided between the reed switch (30) and the inner wall of the storage groove.
2. The target current switch according to claim 1, characterized in that: The target flow switch further comprises a water flow blade (40), the water flow blade (40) extending along the first direction and partially disposed in the main body tube (10), a first magnet (41) being disposed at one end of the water flow blade (40) close to the box body (20), and the water flow blade (40) can drive the first magnet (41) to move in a direction close to or away from the inner wall of the main body tube (10).
3. The target current switch according to claim 2, characterized in that: The water flow blades (40) are made of elastic material.
4. The target current switch according to claim 2, characterized in that: The target flow switch further comprises a protective sleeve (50), one end of the protective sleeve (50) is closed, the closed end of the protective sleeve (50) is connected to the open end of the main body tube (10) via a connecting piece (60) to seal the main body tube (10), the closed end of the protective sleeve (50) is provided with a third through hole, and the remaining portion of the water flow blade (40) extending along the first direction is placed in the protective sleeve (50) through the third through hole.
5. The target current switch according to claim 4, characterized in that: The open end of the main body tube (10) is provided with an abutment platform, the closed end of the protective sleeve (50) is provided with a thread on the outside, and the connecting piece (60) is provided as a nut, the inner end surface of the nut can abut against the surface of the abutment platform, and the nut can be threadedly connected with the protective sleeve (50).
6. The target current switch according to claim 2, characterized in that: A second magnet (11) is arranged on the circumferential side of the main body tube (10), and two second magnets (11) are evenly spaced around the axial direction of the main body tube (10). The second magnet (11) can attract the first magnet (41) when the first magnet (41) approaches.
7. The target current switch according to claim 6, characterized in that: A magnet cover (12) is arranged outside the second magnet (11), and an upper end of the magnet cover (12) has an opening.
8. The target current switch according to claim 2, characterized in that: The open end of the main body tube (10) is provided with a fixing assembly (70), the fixing assembly (70) comprises a fixing column (71), a fourth through hole is provided on the fixing column (71) along the second direction, and the water flow blade (40) is provided with a plug-in rod along the second direction, and the plug-in rod can be inserted into the fourth through hole.
9. The target current switch according to any one of claims 1 to 8, characterized in that: The box body (20) contains a circuit board (80), which is arranged above the reed switch (30) and is electrically connected to the reed switch (30).
10. The target current switch according to claim 9, characterized in that: The target current switch comprises a connecting wire (90), one end of which is placed in the box body (20) and electrically connected to the circuit board (80).