Water supply and drainage pipeline stop valve

Abstract

The utility model relates to the technical field of stop valves, and discloses a water supply and drainage pipeline stop valve which comprises a valve body, a rotating rod is arranged at the upper end of the valve body, a valve element is fixedly connected to the lower end of the rotating rod, a closing groove is formed in the portion, located in the valve element, of the valve body, and a stabilizing structure is arranged at the lower end of the valve element and comprises a connecting rod. A stabilizing rod is fixedly arranged at the lower end of the connecting rod, a butt joint piece is fixedly arranged on the inner wall of the bottom end of the valve body located on the stabilizing rod, a stabilizing groove is formed in the upper end of the butt joint piece, and the lower end of the butt joint piece enters the stabilizing groove. According to the water supply and drainage pipeline stop valve, it can be guaranteed that the valve element and the rotating rod are stably used for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of stop valve, concretely to a water supply and drainage pipeline stop valve. BACKGROUND

[0002] A stop valve is a common valve used to control the flow of fluids such as liquids, gases, or vapors. Its main function is to open and close the flow of fluid in the pipeline by adjusting the position of the valve core. Stop valves are usually used in situations where precise flow control is required and are suitable for cutting off or regulating fluid flow.

[0003] The existing patent with the publication number CN219954244U proposes a stop valve. The device has two overlapping flat spherical valve discs. The spherical surface of the valve disc forms two tangents with the inner wall of the valve port. The valve disc and the valve port have at least good elasticity to ensure good sealing effect when connected. The overlapping flat spherical valve disc forms a double sealing effect, ensuring that the fluid in the stop valve does not leak.

[0004] However, the valve body lacks a limiting structure at the lower end of the valve disc after closing. The impact of the water source may cause the valve disc to drive the rotating rod to sway, causing the rotating rod to wear and deform, resulting in the valve body being unable to be used for a long time. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a water supply and drainage pipeline stop valve to solve the problem of the lack of limiting structure at the lower end of the valve disc of the existing valve body. The impact of the water source may cause the valve disc to drive the rotating rod to sway, causing the rotating rod to wear and deform, resulting in the valve body being unable to be used for a long time.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a water supply and drainage pipeline stop valve, comprising a valve body, the upper end of the valve body is provided with a rotating rod, the lower end of the rotating rod is fixedly connected with a valve core, a closing groove is formed in the valve body inside the valve core, a stable structure is arranged at the lower end of the valve core, the stable structure comprises a connecting rod, a stable rod is fixedly arranged at the lower end of the connecting rod, a butt joint piece is fixedly arranged on the inner wall of the bottom end of the valve body at the stable rod, a stable groove is formed in the upper end of the butt joint piece, and the lower end of the butt joint piece enters the inside of the stable groove.

[0007] Preferably, a fixed plate is arranged on the outer wall of the connecting rod, a sealing ring is fixedly arranged on the outer wall of the fixed plate, and the outer wall of the sealing ring is in contact with the inner wall of the closing groove.

[0008] Preferably, flanges are fixedly arranged on both sides of the valve body, and mounting holes are formed in the inside of the flanges.

[0009] Preferably, a rotating handle is fixedly arranged on the outer wall of the upper end of the rotating rod.

[0010] Preferably, the shape of the stable groove is cross-shaped, and the shape of the butt joint piece is cross-shaped.

[0011] Preferably, the upper end of the inner wall of the closing groove is arc-shaped, and the lower end of the valve core is conical.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1) By setting the stable structure, when the valve core is closed above the inner wall of the closing groove, the butt joint piece enters the inside of the butt joint groove, so that the valve core and the rotating rod are stable, and the condition that the valve core is loosened by water flow is avoided.

[0014] 2) By setting the fixed plate and the sealing ring, after the valve core is closed, the fixed plate enters the inner wall of the closing groove, so that the sealing ring is in contact with the inner wall of the closing valve, thereby realizing double-layer sealing and ensuring that the closing performance of the valve body is better after being closed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of a water supply and drainage pipeline stop valve in the embodiment of the utility model;

[0016] Figure 2 It is a valve body sectional structure schematic view in the embodiment of the utility model;

[0017] Figure 3 It is a structure schematic view after the valve core is opened in the embodiment of the utility model;

[0018] Figure 4 It is Figure 3 an enlarged structure schematic view of position A in the embodiment of the utility model;

[0019] Figure 5 It is a local split structure schematic view in the embodiment of the utility model;

[0020] Figure 6 It is a fixed plate sectional structure schematic view in the embodiment of the utility model.

[0021] In the drawing: 1, valve body; 2, rotating rod; 3, closing groove; 4, valve core; 5, stable structure; 6, connecting rod; 7, stable rod; 8, butt joint piece; 9, stable groove; 10, fixed plate; 11, sealing ring; 12, flange; 13, mounting hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0023] Embodiment one

[0024] In combination Figures 1-6 A water supply and drainage pipeline stop valve, including the valve body 1, the upper end of valve body 1 is provided with rotating rod 2, the lower end of rotating rod 2 is fixedly connected with valve core 4, the inside of valve body 1 located valve core 4 is opened with closing groove 3, the lower end of valve core 4 is provided with stable structure 5, stable structure 5 includes connecting rod 6, the lower end of connecting rod 6 is fixedly provided with stable rod 7, the bottom end inner wall of valve body 1 located stable rod 7 is fixedly provided with docking piece 8, the upper end of docking piece 8 is opened with stable groove 9, the lower end of docking piece 8 enters the inside of stable groove 9.

[0025] Referring to Figure 1 And Figure 5 Further, the two sides of valve body 1 are fixedly provided with flange 12, the inside of flange 12 is opened with mounting hole 13, the outer wall upper end of rotating rod 2 is fixedly provided with rotating handle, the shape of stable groove 9 is cross-shaped, the shape of docking piece 8 is cross-shaped, the upper end of closing groove 3 inner wall is arc-shaped, the lower end of valve core 4 is conical.

[0026] Specifically, flange 12 is used to connect with the connected pipeline, docking piece 8 enters the inside of stable groove 9, so that the fixation of valve core 4 and rotating rod 2 is realized.

[0027] Embodiment two

[0028] Referring to Figure 6 And on the basis of embodiment one, further, the outer wall of connecting rod 6 is provided with fixed plate 10, the outer wall of fixed plate 10 is fixedly provided with sealing ring 11, the outer wall of sealing ring 11 is in contact with the inner wall of closing groove 3.

[0029] Specifically, fixed plate 10 is used to set sealing ring 11, after sealing ring 11 is in contact with the inner wall of closing groove 3, double-layer sealing closing of valve body 1 can be realized, and the sealing of valve body 1 after closing can be better guaranteed.

[0030] In actual operation process, when closing valve body 1, rotating rod 2 is screwed, so as to drive valve core 4 to move downwards, so that docking piece 8 moves downwards, so that docking piece 8 enters the inside of stable groove 9, the stable placement of entire rotating rod 2 and valve core 4 is realized, and the impact force of water source after closing for a long time is avoided to drive rotating rod 2 to shake.

[0031] After the valve core 4 is closed, the fixed plate 10 drives the sealing ring 11 to move downwards, so that the outer wall of the sealing ring 11 is attached to the inner wall of the closing groove 3, at this time, double-layer closing can be realized, and the sealing after the valve body 1 is closed is better.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A water supply and drainage pipeline stop valve comprising a valve body (1), characterized in that: The upper end of the valve body (1) is provided with a rotating rod (2), the lower end of the rotating rod (2) is fixedly connected with a valve core (4), a closing groove (3) is arranged in the valve body (1) inside the valve core (4), the lower end of the valve core (4) is provided with a stable structure (5), the stable structure (5) comprises a connecting rod (6), the lower end of the connecting rod (6) is fixedly provided with a stable rod (7), the bottom end inner wall of the valve body (1) located in the stable rod (7) is fixedly provided with a butt joint piece (8), the upper end of the butt joint piece (8) is provided with a stable groove (9), and the lower end of the butt joint piece (8) enters the inside of the stable groove (9).

2. A water supply and drainage pipe stop valve according to claim 1, characterized in that: The outer wall of the connecting rod (6) is provided with a fixed plate (10), the outer wall of the fixed plate (10) is fixedly provided with a sealing ring (11), and the outer wall of the sealing ring (11) is in contact with the inner wall of the closing groove (3).

3. A water line shut-off valve according to claim 1, wherein: The both sides of the valve body (1) are fixedly provided with flanges (12), and the inside of the flanges (12) is provided with mounting holes (13).

4. A water line shut-off valve according to claim 1, wherein: The outer wall upper end of the rotating rod (2) is fixedly provided with a rotating handle.

5. A water line shut-off valve according to claim 1, wherein: The stable groove (9) is cross-shaped, and the butt joint piece (8) is cross-shaped.

6. A water line shut-off valve according to claim 1, wherein: The upper end of the inner wall of the closing groove (3) is arc-shaped, and the lower end of the valve core (4) is conical.

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