Nut shell of automobile water drain valve

Abstract

The utility model discloses an automobile water drain valve nut shell, which relates to the technical field of valves, and comprises a valve body shell, a valve port, a sealing block, a discharge pipe, a valve rod and a valve cavity, the valve port is arranged at the lower part of the valve body shell, the sealing block is arranged in the valve body shell, the lower part of the sealing block is positioned in the valve port, and the discharge pipe is arranged in the valve rod. The discharging pipe is in threaded connection with the lower portion of the valve body shell, the discharging pipe and the valve port are of a communicating structure, the valve rod is in threaded connection with the lower portion of the sealing block, the valve rod and the discharging pipe are in sliding connection, a sealing structure is arranged at the connecting position, and the valve cavity is formed in the upper portion of the valve body shell. The outside of the inlet end of the discharge pipe is connected to the lower portion of the valve port through the internal thread and the external thread, then after the valve rod jacks up the sealing block, water enters the discharge pipe through the valve port to be discharged, the valve rod and the discharge pipe are in sliding connection, a sealing structure is arranged at the joint, water flow is guided through the discharge pipe, and the water flow is prevented from flowing to the hands of workers.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, and particularly relates to a nut housing of an automobile water drain valve. Background Technique

[0002] The water drain valve of an automobile air reservoir is one of the important components of a vehicle braking system. Regular drainage can ensure the reliability of the automobile braking system; through retrieval, a disclosed automobile water drain valve (publication number: CN220248962U) is known. This structure installs a plug at the lower part of the sealing part, and an extension part is arranged at the lower part of the plug, so that the staff can drain water by pressing the extension part, avoiding the water flowing out will flow onto the hands of the staff. However, when draining water, the staff needs to continuously press the extension part, and when the water flows through the drain port and passes through the extension part, the flowing water will splash, thus easily splashing on the hands. For this reason, we propose a nut housing of an automobile water drain valve, which can guide the water flow and limit the position of the valve stem by setting a discharge pipe and a limiting component. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a nut housing of an automobile water drain valve, which solves the problems put forward in the above background technique.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: A nut housing of an automobile water drain valve includes a valve body housing, and further includes:

[0005] A valve port, which is opened at the lower part of the valve body housing;

[0006] A sealing block, which is arranged inside the valve body housing, and the lower part of the sealing block is located inside the valve port;

[0007] A discharge pipe, which is threadedly connected to the lower part of the valve body housing, and the discharge pipe and the valve port are of a communicating structure;

[0008] A valve stem, which is threadedly connected to the lower part of the sealing block, the valve stem and the discharge pipe are of a sliding connection, and a sealing structure is arranged at the connection part.

[0009] Further, the nut housing of the automobile water drain valve further includes:

[0010] A valve cavity, which is opened at the upper part of the valve body housing, and the valve cavity and the valve port are of a communicating structure;

[0011] An inner ring, which is fixed at the upper part of the valve cavity;

[0012] A spring, which is fixed between the inner ring and the sealing block, and the spring is of a tower-shaped structure.

[0013] Further, the nut housing of the automobile water drain valve further includes:

[0014] Internal thread, and the internal thread is provided at the lower part of the valve port.

[0015] Furthermore, the nut housing of the vehicle water drain valve further includes:

[0016] External thread, and the external thread is provided on the outside of the inlet end of the discharge pipe, and the structure of the external thread is adapted to that of the internal thread.

[0017] Furthermore, the nut housing of the vehicle water drain valve further includes:

[0018] Limit component, and the limit component is fixed at the lower part of the discharge pipe and is located on one side of the valve stem.

[0019] Furthermore, the limit component includes:

[0020] Fixed frame, and the fixed frame is fixedly connected to the discharge pipe, and the open end of the fixed frame faces the valve stem;

[0021] Slider, and the slider is slidably connected inside the fixed frame;

[0022] Support plate, and the support plate is fixed to the lower part of the slider.

[0023] Compared with the above background art, the nut housing of the vehicle water drain valve provided by the present application includes a valve body housing, a valve port, a sealing block, a discharge pipe, a valve stem and a limit component. By connecting the discharge pipe to the lower part of the valve body housing, the water flow is guided during water discharge, avoiding the water flow from dripping on the hands of the staff, and by installing the limit component at the lower part of the discharge pipe, the position of the valve stem is limited during water discharge, thereby limiting the position of the sealing block, so that it is not necessary for the staff to apply a thrust to the valve stem for a long time during water discharge.

[0024] The utility model provides a nut housing of a vehicle water drain valve. Compared with the prior art, the following

[0025] Advantages are achieved:

[0026] 1. For a nut housing of a vehicle water drain valve, the outside of the inlet end of the discharge pipe is connected to the lower part of the valve port through the internal thread and the external thread. After the valve stem jacks up the sealing block, water enters the discharge pipe through the valve port and is discharged. And the valve stem and the discharge pipe are slidably connected, and a sealing structure is provided at the connection. Then, the water flow is guided through the discharge pipe, avoiding the water flow from reaching the hands of the staff.

[0027] 2. An outer shell of an automotive drain valve nut, where a slider can move towards or away from the valve stem inside a fixed frame. When the valve stem moves upward, the movable slider can be adjusted to lift the lower part of the valve stem by the supporting plate. After draining water, the slider is moved away to separate the supporting plate from the valve stem, thus realizing drainage without the need for manual long-term pressing, liberating both hands and avoiding water splashing on the hands. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of an outer shell of an automotive drain valve nut;

[0029] Figure 2 is a top view of an outer shell of an automotive drain valve nut;

[0030] Figure 3 is Figure 2 a cross-sectional view taken along line A - A in

[0031] Figure 4 is a schematic structural diagram of a discharge pipe and a valve stem in an outer shell of an automotive drain valve nut;

[0032] Figure 5 is a schematic structural diagram of a limiting component in an outer shell of an automotive drain valve nut.

[0033] In the figure: 1, valve body outer shell; 2, valve port; 21, internal thread; 3, sealing block; 4, discharge pipe; 41, external thread; 5, valve stem; 6, limiting component; 61, fixed frame; 62, slider; 63, supporting plate; 7, valve cavity; 8, inner ring; 9, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figures 1-5, the present utility model provides a technical solution for an automotive drain valve nut housing: An automotive drain valve nut housing includes a valve body housing 1, a valve port 2, a sealing block 3, a discharge pipe 4, a valve stem 5, a valve cavity 7, an inner ring 8, a spring 9, an internal thread 21, an external thread 41, and a limiting component 6. Specifically, the valve stem 5 can be forced to push up the sealing block 3 to move upward, thereby squeezing the spring 9, so that the lower part of the sealing block 3 moves out of the upper part of the valve port 2, making the valve cavity 7 and the valve port 2 in a communicating structure. And when the valve stem 5 is released, the spring 9 expands and pushes the sealing block 3 to move downward, and then the lower part of the sealing block 3 seals the upper part of the valve port 2; the outer part of the inlet end of the discharge pipe 4 is connected to the lower part of the valve port 2 through the internal thread 21 and the external thread 41. Thus, after the valve stem 5 pushes up the sealing block 3, water enters the discharge pipe 4 through the valve port 2 and is discharged. And the valve stem 5 and the discharge pipe 4 are in a sliding connection, and a sealing structure (not shown in the figure) is provided at the connection, so as to prevent water from flowing onto the hands of the staff.

[0036] The limiting component 6 includes a fixed frame 61, a slider 62, and a support plate 63. Specifically, the slider 62 can move toward or away from the valve stem 5 inside the fixed frame 61. Thus, when the valve stem 5 moves upward, the slider 62 can be moved so that the support plate 63 holds up the lower part of the valve stem 5. And after the water discharge is completed, the slider 62 is moved away so that the support plate 63 and the valve stem 5 are separated, thereby realizing drainage without the need for manual long-term pressing, liberating both hands, and preventing water from splashing on the hands.

[0037] The actual use conditions of this automotive drain valve nut housing are as follows:

[0038] When water needs to be drained, the valve stem 5 is forced to push up the sealing block 3 to move upward, squeezing the spring 9, and the lower part of the sealing block 3 moves out of the upper part of the valve port 2, making the valve cavity 7 and the valve port 2 in a communicating structure. Thus, water enters the discharge pipe 4 through the valve port 2 and is discharged. Then, the slider 62 is moved so that the support plate 63 holds up the lower part of the valve stem 5:

[0039] After the water discharge is completed, the slider 62 is moved away, so that the support plate 63 and the valve stem 5 are separated, and the spring 9 expands and pushes the sealing block 3 to move downward, and then the lower part of the sealing block 3 seals the upper part of the valve port 2.

Claims

1. A nut housing for a drain valve of an automobile, comprising a valve body housing (1), characterized in that: Also includes: A valve port (2), wherein the valve port (2) is provided at the lower part of the valve body shell (1); A sealing block (3), the sealing block (3) being arranged inside the valve body shell (1), and the lower part of the sealing block (3) being located inside the valve port (2); A discharge pipe (4), wherein the discharge pipe (4) is threadedly connected to the lower part of the valve body shell (1), and the discharge pipe (4) and the valve port (2) are in a communicating structure; A valve stem (5) is threadedly connected to the lower part of the sealing block (3); the valve stem (5) and the discharge pipe (4) are slidably connected, and a sealing structure is provided at the connection.

2. The automobile drain valve nut housing according to claim 1, characterized in that: Also includes: A valve cavity (7), wherein the valve cavity (7) is disposed on the upper portion of the valve body shell (1), and the valve cavity (7) and the valve port (2) are in a communicating structure; An inner ring (8), wherein the inner ring (8) is fixed to the upper part of the valve cavity (7); A spring (9) is fixed between the inner ring (8) and the sealing block (3), and the spring (9) is in a tower-shaped structure.

3. The automobile drain valve nut housing according to claim 1, characterized in that: Also includes: An internal thread (21), wherein the internal thread (21) is provided at the lower part of the valve port (2).

4. The automobile drain valve nut housing according to claim 1, characterized in that: Also includes: An external thread (41) is provided outside the inlet end of the discharge pipe (4), and the structure of the external thread (41) and the internal thread (21) are compatible.

5. The automobile drain valve nut housing according to claim 1, characterized in that: Also includes: A limit assembly (6), wherein the limit assembly (6) is fixed to the lower part of the discharge pipe (4), and the limit assembly (6) is located on one side of the valve stem (5).

6. The automobile drain valve nut housing according to claim 5, characterized in that: The limiting component (6) comprises: A fixing frame (61), wherein the fixing frame (61) and the discharge pipe (4) are fixedly connected, and the opening end of the fixing frame (61) faces the valve stem (5); A slider (62), wherein the slider (62) is slidably connected inside the fixed frame (61); A support plate (63) is fixed to the lower part of the slide block (62).

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