Drain valve of filter

Abstract

The utility model belongs to the technical field of automobiles, and particularly relates to a filter drain valve which comprises an upper shell, a lower shell, a filter and a drain valve. An electric control element is arranged in the lower shell; the valve element is inserted into the upper shell and the lower shell, and a sealing ring is arranged between the valve element and the upper shell; wherein the upper shell and the lower shell are detachably connected, the sealing ring can seal the space between the inlet and the water outlet of the valve element, and the valve element can be opened under the action of the electric control element. Compared with the prior art, the valve element is inserted into the upper shell and the lower shell, so that the valve element does not need to be fixed by adopting an injection molding process in the production process; and an additional injection molding part for fixing the valve core and forming sealing is not needed, so that the production and manufacturing process and the installation steps of the drain valve are greatly simplified, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile accessories, and in particular relates to a filter drain valve. Background Art

[0002] Filters, also known as oil-water separators, water collection cups or water collection cups, play an important role in the operation of cars. They can effectively protect the operating environment of cars and extend the service life of cars. Regular replacement and maintenance of filters is one of the important steps to keep cars running normally.

[0003] Generally, a filter includes a cup body with a water accumulation chamber and components such as a drain valve, a heating element, and a sensor element installed on the cup body, wherein the drain valve is a component for discharging accumulated water. The main valve core of the existing filter drain valve is generally fixed to the lower housing of the drain valve through an injection molding process, while the auxiliary valve core needs to be further fixed to the lower housing of the drain valve through an injection molding part. At the same time, a sealing ring is required on the lower housing of the drain valve and the injection molding part for sealing. This leads to a more complicated manufacturing process of the drain valve, which increases the production cost. At the same time, the drain valve has cumbersome steps during installation, which reduces work efficiency. Therefore, it is necessary to make improvements. Utility Model Content

[0004] The purpose of the utility model is to provide a filter drain valve in view of the above-mentioned technical problems, so as to reduce production costs and improve work efficiency.

[0005] In view of this, the utility model provides a filter drain valve, comprising:

[0006] An upper shell body, wherein a drain port is provided on the upper shell body;

[0007] A lower housing, wherein an electric control element is disposed in the lower housing;

[0008] Also includes:

[0009] A valve core, wherein the valve core is inserted into the upper shell and the lower shell, and a sealing ring is arranged between the valve core and the upper shell;

[0010] The upper shell and the lower shell are detachably connected, the sealing ring can seal the space between the inlet and the drain port of the valve core, and the valve core can be opened under the action of the electric control element.

[0011] In the present technical solution, by inserting the valve core into the upper shell and the lower shell, there is no need to use the injection molding process to fix the valve core during the production process, nor is there a need for an additional injection molded part to fix the valve core and form a seal, which greatly simplifies the production process. At the same time, when installing the drain valve, it is only necessary to insert the valve core into the lower shell, match the upper shell with the lower shell, and finally fix the upper shell and the lower shell, and form a seal through the sealing ring to complete the installation of the drain valve. This simplifies the installation steps and greatly improves work efficiency.

[0012] In the above technical solution, further, the valve core also includes:

[0013] A main valve core, wherein a connecting portion is disposed at the bottom end of the main valve core, a valve core head is disposed at the top end of the main valve core, and a valve hole is disposed in the main valve core;

[0014] A secondary valve core, wherein a spring is sleeved on the secondary valve core, and a sealing portion is provided on the top surface of the secondary valve core;

[0015] Wherein, the main valve core and the valve core head are integrally formed, the auxiliary valve core is movably inserted in the valve hole, and the top end of the auxiliary valve core can abut against the bottom end of the drain outlet.

[0016] In the above technical solution, further, the valve core head also includes:

[0017] A first limiting section, wherein a sealing ring mounting groove is provided on the first limiting section;

[0018] a second limiting section, wherein the second limiting section is located below the first limiting section;

[0019] An outer hole, the outer hole is arranged on the valve core head, and the diameter of the outer hole is larger than the valve hole;

[0020] Wherein, the outer hole is communicated with the valve hole.

[0021] In the above technical solution, further, the lower shell also includes:

[0022] A limiting protrusion, wherein the limiting protrusion is provided with a mounting hole that matches the second limiting section;

[0023] A jack, the jack passing through the lower shell;

[0024] The mounting hole is connected to the insertion hole, the diameter of the mounting hole is larger than the insertion hole, and the connecting portion at the bottom end of the main valve core can pass through the insertion hole.

[0025] In the above technical solution, further, the upper shell also includes:

[0026] A limiting groove, wherein the limiting groove is arranged at the bottom of the upper shell;

[0027] A connecting groove, which is arranged on the top of the limiting groove and is communicated with the limiting groove;

[0028] Among them, the limiting groove can cooperate with the limiting protrusion, the connecting groove can cooperate with the first limiting section, the connecting groove is connected with the drain port, and the sealing ring cooperates with the inner wall of the connecting groove to form a seal.

[0029] In the above technical solution, further, the sealing ring also includes:

[0030] The cavity is arranged at the upper half of the sealing ring and extends along the circumference of the sealing ring.

[0031] The beneficial effects of the utility model are:

[0032] 1. By inserting the valve core into the upper shell and the lower shell, there is no need to use an injection molding process to fix the valve core during the production process, nor is there any need to use an additional injection molding part to fix the valve core and form a seal, which greatly simplifies the production process, facilitates the installation of the drain valve, and improves work efficiency;

[0033] 2. By matching the first limit section with the connecting groove, only one sealing ring is needed to complete the sealing, eliminating the need for an additional injection molded part to fix the valve core and form a seal, thus simplifying the manufacturing process and improving work efficiency;

[0034] 3. Through the setting of the cavity, when the first limit section of the sealing ring cooperates with the connecting groove during the installation of the valve core, the upper part of the sealing ring is squeezed and deformed, thereby increasing the contact area between the sealing ring and the inner wall of the connecting groove and improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0036] Figure 1 It is a schematic structural diagram of a specific implementation method of the utility model.

[0037] Figure 2 This is a schematic diagram of the exploded structure of the drain valve of the utility model.

[0038] Figure 3 It is a schematic diagram of the lower shell structure of the utility model.

[0039] Figure 4 It is a schematic diagram of the upper shell structure of the utility model.

[0040] Figure 5 This is a schematic diagram of the main valve core structure of the utility model.

[0041] Figure 6 This is a schematic diagram of the auxiliary valve core structure of the utility model.

[0042] Figure 7 This is a schematic diagram of the valve core head structure of the utility model.

[0043] Figure 8 This is a schematic diagram of the sealing ring structure of the utility model.

[0044] The symbols in the figure are:

[0045] 1. Upper shell; 2. Drain port; 3. Lower shell; 4. Valve core; 40. Main valve core; 400. Connecting part; 401. Valve core head; 4010. First limiting section; 4011. Second limiting section; 41. Auxiliary valve core; 5. Sealing ring; 6. Valve hole; 7. Spring; 8. Sealing part; 9. Sealing ring mounting groove; 10. External hole; 11. Limiting protrusion; 12. Mounting hole; 13. Plug hole; 14. Limiting groove; 15. Connecting groove; 16. Cavity. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0048] Embodiment 1:

[0049] The embodiment of the present application provides a filter drain valve, comprising: an upper housing 1, on which a drain port 2 is disposed; a lower housing 3, in which an electric control element is disposed;

[0050] It also includes: a valve core 4, the valve core 4 is inserted in the upper shell 1 and the lower shell 3, and a sealing ring 5 is arranged between the valve core 4 and the upper shell 1;

[0051] The upper shell 1 and the lower shell 3 are detachably connected, the sealing ring 5 can seal the space between the inlet of the valve core 4 and the drain port 2, and the valve core 4 can be opened under the action of the electric control element.

[0052] The valve core 4 further includes: a main valve core 40, a connecting portion 400 is provided at the bottom end of the main valve core 40, a valve core 4 head is provided at the top end of the main valve core 40, and a valve hole 6 is provided in the main valve core 40; an auxiliary valve core 41, a spring 7 is sleeved on the auxiliary valve core 41, and a sealing portion 8 is provided on the top surface of the auxiliary valve core 41;

[0053] The main valve core 40 and the valve core 4 are integrally formed, and the auxiliary valve core 41 is movably inserted in the valve hole 6 , and the top end of the auxiliary valve core 41 can abut against the bottom end of the drain port 2 .

[0054] The valve core 4 head also includes: a first limiting section 4010, on which a sealing ring 5 mounting groove is provided; a second limiting section 4011, which is located below the first limiting section 4010; an outer hole 10, which is provided on the valve core 4 head, and the diameter of the outer hole 10 is larger than the valve hole 6;

[0055] The outer hole 10 is communicated with the valve hole 6 .

[0056] The lower housing 3 further includes: a limiting protrusion 11, in which a mounting hole 12 is provided to cooperate with the second limiting section 4011; and a plug hole 13, which passes through the lower housing 3;

[0057] The mounting hole 12 is connected to the insertion hole 13 , the diameter of the mounting hole 12 is larger than the insertion hole 13 , and the connecting portion 400 at the bottom end of the main valve core 40 can pass through the insertion hole 13 .

[0058] The upper shell 1 further includes: a limiting groove 14, which is arranged at the bottom of the upper shell 1; a connecting groove 15, which is arranged at the top of the limiting groove 14, and the connecting groove 15 is connected to the limiting groove 14;

[0059] Among them, the limiting groove 14 can cooperate with the limiting protrusion 11, the connecting groove 15 can cooperate with the first limiting section 4010, the connecting groove 15 is connected to the drain port 2, and the sealing ring cooperates with the inner wall of the connecting groove 15 to form a seal.

[0060] Moreover, the electric control element is a conventional filter drain valve electric control element, generally an electromagnetic element. The diameter of the outer hole 10 is larger than the valve hole 6, and a step can be formed between the two. The auxiliary valve core 41 is a conventional structure. The bottom end of the spring 7 abuts on the step at the connection between the outer hole 10 and the valve hole 6, and the top end abuts on the top of the auxiliary valve core 41. The diameter of the mounting hole 12 is larger than the plug hole 13, and a step can be formed between the two. The second limiting section 4011 can cooperate with the step there to form a limit. The diameter of the first limiting section 4010 is larger than the second limiting section 4011. The diameters of the first limiting section 4010 and the second limiting section 4011 are both larger than the diameter of the main valve core 40. The bottom end of the drain outlet 2 is convex to facilitate cooperation with the sealing portion 8 on the top surface of the auxiliary valve core 41. The upper shell 1 and the lower shell 3 can be fixedly connected by conventional bolt connections.

[0061] In this embodiment, when installing the drain valve, the main valve core 40 is inserted into the insertion hole 13 of the lower shell body 3. After the main valve core 40 is inserted, the second limiting section 4011 of the valve core 4 head is located in the mounting hole 12, and the second limiting section 4011 can cooperate with the step at the connection between the mounting hole 12 and the insertion hole 13 to form a limit. At the same time, the first limiting section 4010 cooperates with the surface of the limiting protrusion 11 to form a limit. Then, the auxiliary valve core 41 is inserted into the valve hole 6. After the auxiliary valve core 41 is inserted into the valve hole 6, the bottom end of the spring 7 abuts against the step at the connection between the outer hole 10 and the valve hole 6. Then, the upper shell body 1 is covered on the lower shell body 3. After the upper shell body 1 is covered on the lower shell body 3, the limiting protrusion 11 is inserted into the limiting groove 14, and the first limiting section 4010 is inserted into the connecting groove 15. At this time, the auxiliary valve core 41 The sealing portion 8 on the top surface abuts against the bottom end of the drain outlet 2, and the sealing ring 5 cooperates with the inner wall of the connecting groove 15 to form a seal, and finally the upper shell 1 and the lower shell 3 are fixed to complete the installation of the drain valve. Compared with the prior art, the utility model inserts the valve core 4 into the upper shell 1 and the lower shell 3, so that there is no need to use an injection molding process to fix the valve core 4 during the production process, and there is no need to use an additional injection molding part to fix the valve core 4 and form a seal, which greatly simplifies the production process. At the same time, when installing the drain valve, it is only necessary to insert the valve core 4 into the lower shell 3 and then cooperate with the upper shell 1 and the lower shell 3, and finally fix the upper shell 1 and the lower shell 3, and form a seal through the sealing ring 5 to complete the installation of the drain valve, which simplifies the installation steps and greatly improves work efficiency.

[0062] Embodiment 2:

[0063] This embodiment provides a filter drain valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the sealing ring 5 also includes: a cavity 16, which is arranged in the upper half of the sealing ring 5 and extends circumferentially along the sealing ring 5.

[0064] In this embodiment, through the setting of the cavity 16, during the installation of the valve core 4, when the first limiting section 4010 cooperates with the connecting groove 15, the upper half of the sealing ring 5 is squeezed and deformed, thereby increasing the contact area between the sealing ring 5 and the inner wall of the connecting groove 15, thereby improving the sealing effect.

[0065] Embodiment 3:

[0066] This embodiment provides a filter drain valve, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features: an installation groove for installing a sealing ring 5 may also be opened on the second limiting section 4011.

[0067] In this embodiment, the user may further install a sealing ring 5 on the second limiting section 4011 as needed, thereby further forming a seal between the second limiting section 4011 and the inner wall of the mounting hole 12, thereby improving the sealing effect of the drain valve.

[0068] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A filter drain valve, comprising: An upper shell (1), wherein the upper shell (1) is provided with a drain outlet (2); A lower housing (3), wherein an electric control element is arranged in the lower housing (3); It is characterized by further comprising: A valve core (4), the valve core (4) being inserted into the upper shell (1) and the lower shell (3), and a sealing ring (5) being provided between the valve core (4) and the upper shell (1); The upper shell (1) and the lower shell (3) are detachably connected, the sealing ring (5) can seal the space between the inlet of the valve core (4) and the drain outlet (2), and the valve core (4) can be opened under the action of the electric control element.

2. A filter drain valve according to claim 1, characterized in that: The valve core (4) further comprises: A main valve core (40), wherein a connecting portion (400) is provided at the bottom end of the main valve core (40), a valve core (4) head is provided at the top end of the main valve core (40), and a valve hole (6) is provided in the main valve core (40); An auxiliary valve core (41), wherein a spring (7) is sleeved on the auxiliary valve core (41), and a sealing portion (8) is provided on the top surface of the auxiliary valve core (41); The main valve core (40) and the valve core (4) head are integrally formed, the auxiliary valve core (41) is movably inserted in the valve hole (6), and the top end of the auxiliary valve core (41) can abut against the bottom end of the drain outlet (2).

3. A filter drain valve according to claim 2, characterized in that: The valve core (4) head also includes: A first limiting section (4010), wherein a sealing ring (5) mounting groove is provided on the first limiting section (4010); A second limiting section (4011), wherein the second limiting section (4011) is located below the first limiting section (4010); An outer hole (10), the outer hole (10) being arranged on the head of the valve core (4), and the diameter of the outer hole (10) being larger than the valve hole (6); Wherein, the outer hole (10) is in communication with the valve hole (6).

4. A filter drain valve according to claim 3, characterized in that: The lower housing (3) further comprises: A limiting protrusion (11), wherein the limiting protrusion (11) is provided with a mounting hole (12) that cooperates with the second limiting section (4011); A plug hole (13), wherein the plug hole (13) passes through the lower housing (3); The mounting hole (12) is connected to the insertion hole (13), the diameter of the mounting hole (12) is larger than the insertion hole (13), and the connecting portion (400) at the bottom end of the main valve core (40) can pass through the insertion hole (13).

5. A filter drain valve according to claim 4, characterized in that: The upper housing (1) further comprises: A limiting groove (14), wherein the limiting groove (14) is arranged at the bottom of the upper shell (1); A connecting groove (15), wherein the connecting groove (15) is arranged at the top of the limiting groove (14), and the connecting groove (15) is communicated with the limiting groove (14); The limiting groove (14) can cooperate with the limiting protrusion (11), the connecting groove (15) can cooperate with the first limiting section (4010), the connecting groove (15) is connected to the drain port (2), and the sealing ring (5) cooperates with the inner wall of the connecting groove (15) to form a seal.

6. A filter drain valve according to claim 1, characterized in that: The sealing ring (5) further comprises: A cavity (16) is arranged at the upper half of the sealing ring (5) and extends along the circumference of the sealing ring (5).

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