Waterproof valve

Abstract

The utility model relates to the technical field of fluid valves, and discloses a waterproof valve which comprises a valve body and a PIN arranged on the valve body, the PIN is provided with a welding part and a connecting part, an enameled wire of a coil in the valve body penetrates out of the side wall of the valve body and is welded to the welding part, and the connecting part is used for being connected with an external lead. The connecting efficiency of the PIN and the enameled wire can be improved, and working hours and labor cost are saved.

Description

Technical Field

[0001] The present application relates to the technical field of fluid valves, and in particular to a waterproof valve. Background Art

[0002] A waterproof valve, also known as a one-way valve, check valve, or non-return valve, is a valve that allows fluid to flow in one direction only while preventing reverse flow. The primary function of a waterproof valve is to prevent reverse flow of fluid within a system, thereby protecting the system from reverse pressure and backflow.

[0003] Currently, controlling the opening and closing of waterproof valves using solenoid coils is a common method. This method switches the solenoid coil on and off to control the valve's opening and closing. When the solenoid coil is energized, it generates an electromagnetic force that pulls the valve core to move, thereby opening the valve and allowing fluid to pass. When the solenoid coil is de-energized, the electromagnetic force disappears, and the valve core, activated by a spring or other reset mechanism, returns to its original position, closing the valve and preventing fluid flow.

[0004] Reference Figure 1 and Figure 2 In the prior art, two pins 3 are typically fixed to the surface of the waterproof valve body 1 to connect to the positive and negative electrodes of the coil enameled wire 2 inside the waterproof valve. The other ends of the pins 3 extend beyond the surface of the valve body 1 and are used to connect to external leads. However, in current production, the coil enameled wire 2 is threaded through the side wall of the valve body 1 and connected to the pins 3 by hand-winding, and then tinning. This operation is complex and inefficient. Utility Model Content

[0005] In order to improve the working efficiency when connecting the enameled wire and the PIN needle, the present application provides a waterproof valve.

[0006] This application adopts the following technical solutions:

[0007] A waterproof valve comprises a valve body and a PIN needle arranged on the valve body, wherein the PIN needle has a welding portion and a connecting portion, the enameled wire of the coil in the valve body passes through the side wall of the valve body and is welded to the welding portion, and the connecting portion is used to connect to an external lead wire.

[0008] By adopting the above technical solution, the PIN needle is installed on the valve body, and the PIN needle has a welding part and a connecting part. The enameled wire is passed through the valve body and can be welded to the welding part of the PIN needle, so that the connection is more convenient and the production efficiency is greatly improved; the connecting part is used to connect to the external lead, thereby ensuring the transmission of the electrical signal of the PIN needle.

[0009] Optionally, the PIN pin is integrally bent, and the welding portion and the connecting portion are oriented perpendicularly to each other.

[0010] By adopting the above technical solution, the PIN needle is bent, one end can form a welding part, and the other end forms a connecting part, and the two are perpendicular to each other, making enameled wire welding and lead connection more convenient.

[0011] Optionally, a side wall of the valve body is provided with a receiving groove, and the PIN needle is installed in the receiving groove.

[0012] By adopting the above technical solution, the side wall of the valve body is provided with a receiving groove, and the PIN needle is installed in the receiving groove. The overall structural layout is more compact and reasonable, and the receiving groove can be formed when the valve body shell is produced.

[0013] Optionally, a limiting column is provided on the inner wall of the accommodating groove, and one end of the enameled wire passes through the space between the limiting column and the connecting portion and is connected to the welding portion.

[0014] By adopting the above technical solution, one end of the enameled wire passes through between the limiting column and the connecting part. Under the limitation of the limiting column and the connecting part, one end of the enameled wire is always located on the welding part, so that subsequent welding work can be carried out directly without the need for additional adjustment of the position of the enameled wire.

[0015] Optionally, a mounting groove is provided on the side wall of the valve body, the mounting groove is communicated with the accommodating groove, the PIN needle includes a plug-in portion, the plug-in portion is plugged into the mounting groove, and when the plug-in portion is plugged into the mounting groove, the welding portion abuts against the inner wall of the accommodating groove.

[0016] By adopting the above technical solution, the PIN pin includes a plug-in portion, which is plugged into the installation slot, thereby fixing the PIN pin. Glue can be poured into the installation slot to better fix the plug-in portion in the installation slot.

[0017] Optionally, an abutment groove is provided on the inner wall of the accommodating groove, and after the plug-in portion is installed in the installation groove, the welding portion abuts against the abutment groove.

[0018] Optionally, a clamping slot is provided at one end of the mounting slot away from the accommodating slot.

[0019] By adopting the above technical solution, after the PIN pin is bent into shape, the end of the plug-in part is a bending point, and the end is easy to form an arched part, which can be accommodated in the card slot, thereby further improving the stability and anti-pullout ability of the PIN pin connected to the installation slot.

[0020] Optionally, at least two limiting protrusions are provided on the inner wall on the same side of the installation groove, and a gap exists between two adjacent limiting protrusions.

[0021] By adopting the above technical solution, the limiting protrusions can abut against the outer wall of the plug-in part to position the plug-in part. In addition, a space for accommodating glue is formed between the limiting protrusions. After pouring the glue, it can have a dialysis effect, so that the glue can spread all over the inside of the installation groove, ensuring the glue adhesion effect.

[0022] Optionally, a sleeve is provided on the outer wall of the connecting portion to cover the connection position between the connecting portion and the lead wire.

[0023] By adopting the above technical solution, the sleeve can wrap and protect the connection position of the connecting part and the lead.

[0024] In summary, this application has at least one of the following beneficial effects:

[0025] 1. By adjusting the structure of the PIN needle, the connection between the enameled wire and the PIN needle can be directly welded, thereby improving the production efficiency of the workshop and saving working hours and labor costs;

[0026] 2. The PIN pin is connected by plugging into the installation slot. The installation method is simple and convenient, and the PIN pin connection is stable under the joint action of the card slot and the limit protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the related technology;

[0028] Figure 2 yes Figure 1 A magnified schematic diagram of point A in the middle;

[0029] Figure 3 It is a structural diagram of an embodiment of the present application;

[0030] Figure 4 yes Figure 3 A magnified schematic diagram of point B in the middle;

[0031] Figure 5 This is an exploded schematic diagram of a PIN needle in an embodiment of the present application;

[0032] Figure 6 This is a schematic diagram of the connection between the lead and the PIN needle in the embodiment of the present application.

[0033] Explanation of the accompanying reference numerals: 1. Valve body; 2. Enameled wire; 3. PIN needle; 31. Welding part; 32. Connecting part; 33. Inserting part; 4. Abutting groove; 5. Card slot; 6. Accommodating groove; 7. Limiting column; 8. Mounting groove; 9. Limiting protrusion; 10. Sleeve; 11. Lead wire. DETAILED DESCRIPTION

[0034] The following is combined with Figure 3-6 This application is described in further detail.

[0035] The embodiment of the present application discloses a waterproof valve. Figure 3 and Figure 4 The waterproof valve mainly includes a valve body 1 and two PIN needles 3 installed on the valve body 1. The enameled wire 2 of the coil in the valve body 1 is passed through the side wall of the valve body 1 and is connected to the two PIN needles 3 respectively. The PIN needle 3 includes a welding part 31 and a connecting part 32. The end of the enameled wire 2 is spot-welded to the welding part 31, and the connecting part 32 is used to connect to the external lead 11. Under the action of the PIN needle 3, the electrical signal is transmitted to the coil to control the opening and closing of the waterproof valve. The opening and closing structure inside the waterproof valve is a prior art and is not the focus of this application, so it will not be described in detail here.

[0036] Reference Figure 4 The sidewall of valve body 1 has a receiving groove 6. Valve body 1 is typically made of engineering plastic. This groove 6 is formed during the molding process of the valve body 1 by means of a mold. The end of enameled wire 2 passes through the interior of valve body 1 and extends into receiving groove 6, where PIN pin 3 is mounted. This makes the overall structure of valve body 1 more compact and rational. The location of PIN pin 3 in receiving groove 6 also reduces the risk of damage.

[0037] Reference Figure 4 and Figure 5 The PIN pin 3 is integrally bent and formed at a bending angle of 180 degrees. After the PIN pin is installed in the receiving groove 6, one end of the PIN pin 3 is vertically arranged to form a connecting portion 32, and the other end is folded outward away from the connecting portion 32 to form a welding portion 31. The connecting portion 32 and the welding portion 31 are oriented perpendicular to each other. The cross section of the PIN pin 3 is a rectangular structure, and the wide side of the welding portion 31 faces upward, which is more conducive to spot welding. Figure 6 The outer wall of the connecting portion 32 is provided with a sleeve 10, and the sleeve 10 is preferably a heat shrink sleeve 10. After the connecting portion 32 and the lead 11 are connected, the connection can be covered by the sleeve 10 to improve the stability of the connection.

[0038] Reference Figure 4 and Figure 5 A limiting column 7 is vertically fixed to the bottom surface of the accommodating groove 6. There is a certain gap between the limiting column 7 and the connecting portion 32. The enameled wire 2 passes through the space between the limiting column 7 and the connecting portion 32. Under the limitation of the limiting column 7 and the connecting portion 32, the end face of the enameled wire 2 is always located on the surface of the welding portion 31, so that the position of the enameled wire 2 does not need to be adjusted during subsequent spot welding, and spot welding can be performed faster, thereby improving work efficiency.

[0039] Reference Figure 4 and Figure 5In a further embodiment, a mounting groove 8 is provided on the side wall of the valve body 1. The mounting groove 8 can also be formed and set when the valve body 1 shell is produced, and the mounting groove 8 is connected to the receiving groove 6. One end of the PIN needle 3 is bent to form a plug-in portion 33, and the plug-in portion 33 is plugged into the mounting groove 8, thereby installing the PIN needle 3. Glue is then poured into the mounting groove 8 to better connect the plug-in portion 33 to the mounting groove 8. The inner bottom surface of the receiving groove 6 is provided with an abutment groove 4. After the plug-in portion 33 is plugged into the mounting groove 8, the welding portion 31 can abut against the abutment groove 4, thereby positioning the welding portion 31, making it less likely to shake at will, improving stability, and making the overall structure more compact and reasonable.

[0040] In a further embodiment, a latching slot 5 is defined at one end of the mounting slot 8, distal from the receiving slot 6. The latching slot 5 is wider than the mounting slot 8, interconnects the latching slot 5, and preferably has a circular cross-section. In this embodiment, the PIN pin 3 is integrally bent, resulting in a curved portion at the bend. When the PIN pin 3 is installed in the mounting slot 8, this curved portion corresponds to the position of the latching slot 5, thereby further enhancing the pullout resistance and stability of the PIN pin 3 within the mounting slot 8.

[0041] Furthermore, at least two stopper protrusions 9 are fixed to one inner wall of the mounting groove 8. In this embodiment, two stopper protrusions 9 are fixed to the inner wall of the mounting groove 8, with a certain gap between the two stopper protrusions 9. Preferably, the stopper protrusion 9 is fixed to the inner wall of the mounting groove 8 on the side away from the abutment groove 4. The PIN pin 3 is bent and inserted into the mounting groove 8. The mounting groove 8 requires glue to be applied. The stopper protrusion 9 cooperates with the side wall of the PIN pin 3 to achieve a seepage effect, allowing the glue to spread throughout the interior of the mounting groove 8, ensuring a good adhesive bond.

[0042] The waterproof valve of the present embodiment is implemented as follows: the enameled wire 2 is connected by spot welding, thereby making the connection between the enameled wire 2 and the PIN pin 3 more efficient, saving time and labor costs. The PIN pin 3 is inserted into the installation slot 8 for connection, and the installation of the PIN pin 3 is also convenient and simple.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A waterproof valve, comprising a valve body (1) and a PIN needle (3) arranged on the valve body (1), characterized in that: The PIN needle (3) has a welding portion (31) and a connecting portion (32); the enameled wire (2) of the coil in the valve body (1) passes through the side wall of the valve body (1) and is welded to the welding portion (31); and the connecting portion (32) is used to connect to an external lead wire (11).

2. A waterproof valve according to claim 1, characterized in that: The PIN needle (3) is integrally bent and formed, and the welding portion (31) and the connecting portion (32) are oriented perpendicularly to each other.

3. A waterproof valve according to claim 2, characterized in that: The side wall of the valve body (1) is provided with a receiving groove (6), and the PIN needle (3) is installed in the receiving groove (6).

4. A waterproof valve according to claim 3, characterized in that: A limiting column (7) is provided on the inner wall of the accommodating groove (6), and one end of the enameled wire (2) passes through the space between the limiting column (7) and the connecting portion (32) and is connected to the welding portion (31).

5. The waterproof valve according to claim 3, characterized in that: The side wall of the valve body (1) is provided with a mounting groove (8), the mounting groove (8) and the receiving groove (6) are connected, the PIN needle (3) includes a plug-in portion (33), the plug-in portion (33) is plugged into the mounting groove (8), and when the plug-in portion (33) is plugged into the mounting groove (8), the welding portion (31) abuts against the inner wall of the receiving groove (6).

6. The waterproof valve according to claim 5, characterized in that: An abutment groove (4) is provided on the inner wall of the accommodating groove (6), and after the plug-in portion (33) is installed in the installation groove (8), the welding portion (31) abuts against the abutment groove (4).

7. The waterproof valve according to claim 5, characterized in that: A clamping slot (5) is provided at one end of the installation slot (8) away from the accommodating slot (6).

8. The waterproof valve according to claim 5, characterized in that: At least two limiting protrusions (9) are provided on the inner wall of the same side of the installation groove (8), and a gap exists between two adjacent limiting protrusions (9).

9. A waterproof valve according to any one of claims 1 to 8, characterized in that: The outer wall of the connecting portion (32) is provided with a sleeve (10) for covering the connection position between the connecting portion (32) and the lead wire (11).

Images