Water stop valve

Abstract

The utility model discloses a water stop valve which comprises a shell and a movable rod, and a sealing washer is arranged on the movable rod. The shell is provided with a sealing end face for the sealing washer to abut against and seal, an external thread is formed on the outer wall of the shell, and the end, close to the sealing washer, of the external thread is flush with the sealing end face. The external thread is provided with 1-3 circles of threads; compared with the prior art, by limiting the axial length of the external thread on the shell and limiting the total axial length of the external thread and the sealing gasket, when the angle valve and the faucet are installed in the pipe joint, the pipe joint is provided with enough residual threads to be firmly connected with the angle valve and the faucet.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bathroom, specifically relates to a water stop valve. BACKGROUND

[0002] When the angle valve is replaced, the water total valve needs to be closed, and after replacement is finished, the water total valve is opened again. The angle valve is used at a distance from the water total valve, and it is troublesome to operate the water total valve back and forth.

[0003] Although similar water stop valve products exist on the market, the inner thread for connecting the angle valve is short, resulting in unstable installation of the angle valve.

[0004] Therefore, the present application is produced in view of the above-mentioned defects in the prior art. CONTENT OF THE UTILITY MODEL

[0005] The main purpose of the utility model is to provide a water stop valve, which solves the problem of short inner thread for connecting the angle valve and unstable installation of the angle valve mentioned in the background art.

[0006] In order to achieve the above purpose, the solution of the utility model is as follows:

[0007] A water stop valve, comprising a shell and a movable rod, wherein a sealing gasket is arranged on the movable rod; a sealing end face for abutting and sealing the sealing gasket is arranged on the shell, an outer thread is formed on the outer wall of the shell, and the end of the outer thread close to the sealing gasket is flush with the sealing end face; the outer thread has 1-3 turns of thread.

[0008] Further, the outer thread has 1-1.5 turns of thread.

[0009] Further, the axial length of the outer thread is 1.814-4mm;

[0010] Further, the movable rod has a water sealing position and a water passing position on the shell; when the movable rod is located at the water sealing position, an active gap is formed between the sealing gasket and the sealing end face; when the movable rod is located at the water passing position, the sealing gasket abuts on the sealing end face.

[0011] Further, the axial total length of the outer thread and the sealing gasket is 6-8mm.

[0012] Further, a fixed convex edge is formed on the movable rod; the cross section of the sealing gasket is in the shape of a Chinese character "fang", including an upper sealing surface, a side connecting surface and a lower sealing surface, a limiting cavity is formed on the inner side of the sealing gasket, and the fixed convex edge is movably embedded into the limiting cavity.

[0013] After adopting the above structure, the water stop valve of the utility model has at least the following beneficial effects:

[0014] I. The outer thread has at least one circle of outer thread to ensure stable connection between the outer shell and the inner thread of the pipe joint; the outer thread is provided with at most three circles of thread to avoid occupying the inner thread of the pipe joint in the axial direction. In this way, the pipe joint has sufficient residual axial length to enable the angle valve, faucet and the like to be firmly connected.

[0015] II. In use, the threaded interface of the angle valve abuts against the sealing gasket, and the sealing gasket abuts against the sealing end face; since one end of the outer thread is flush with the sealing end face, the length space between the end of the outer thread and the sealing gasket is reduced as much as possible; the thickness of the sealing gasket plus the axial length of the outer thread is the occupation of the inner thread of the pipe joint; further, the axial total length of the outer thread and the sealing gasket is 6-8mm.

[0016] III. The sealing gasket is sleeved and fixed on the fixed protruding edge of the movable rod to realize installation positioning and avoid falling off, so that the installation process is simpler.

[0017] Compared with the prior art, by limiting the axial length of the outer thread on the outer shell and limiting the axial total length of the outer thread and the sealing gasket, when the angle valve and the faucet are installed in the pipe joint, the pipe joint has sufficient residual thread to firmly connect the angle valve and the faucet. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective structural schematic view of the stop valve.

[0019] Figure 2 It is another perspective structural schematic view of the stop valve.

[0020] Figure 3 It is a sectional view structural schematic view of the stop valve.

[0021] Figure 4 It is a sectional view structural schematic view of the stop valve when installed in the pipe joint.

[0022] Figure 5 It is Figure 4 It is an enlarged structural schematic view of position A.

[0023] In the figure:

[0024] The outer shell 1; the sealing end face 10; the outer thread 11; the water inlet 12; the movable rod 2; the fixed protruding edge 21; the water outlet 23; the water sealing part 24; the sealing gasket 3; the upper sealing surface 31; the side connecting surface 32; the lower sealing surface 33; the pipe joint 100. DETAILED DESCRIPTION

[0025] In order to further explain the technical scheme of the utility model, the utility model will be described in detail below through specific embodiments.

[0026] As Figures 1 to 5 shown, it is a water stop valve related to the utility model, including shell 1 and movable rod 2, movable rod 2 is provided with sealing washer 3;Sealing washer 3 is provided with the sealing end face 10 of shell 1 for abutting and sealing, the outer wall of shell 1 forms outer thread 11, and the end of outer thread 11 close to sealing washer 3 is flush with the sealing end face 10;Outer thread 11 has 1-3 turns of thread. Preferably, outer thread 11 has 1-1.5 turns of thread. As Figures 1 to 3 Shown, outer thread 11 has 1.5 turns of thread.

[0027] In this way, the water stop valve related to the utility model, the outer thread 11 has at least one outer thread 11, which ensures that the shell 1 itself and the inner thread of the pipe joint 100 can be stably connected;Outer thread 11 is provided with at most three turns of thread, which avoids occupying the inner thread of the pipe joint 100 in the axial direction. This ensures that the pipe joint 100 has sufficient residual axial length, so that the angle valve, faucet, etc. can be firmly connected.

[0028] When using, the threaded interface of the angle valve abuts on the sealing washer 3, and the sealing washer 3 abuts on the sealing end face 10;Since one end of outer thread 11 is flush with the sealing end face 10, the length space between the end of outer thread 11 and sealing washer 3 is reduced as much as possible;The thickness of sealing washer 3 plus the axial length of outer thread 11 is the occupation of the inner thread of the pipe joint 100;Specifically, as Figure 3 Shown, the axial length S of outer thread 11 is 1.814-4mm. As Figure 4 And Figure 5 Shown, the thickness of sealing washer 3 is 4mm, and the axial total length L of outer thread 11 and sealing washer 3 is 6-8mm.

[0029] After the angle valve is removed, under the action of water pressure or spring, the movable rod 2 moves outward, so that the water sealing part 24 at the tail of movable rod 2 blocks the water inlet 12 on the shell 1;That is, the movable rod 2 has a water sealing position and a water passing position on the shell 1;When movable rod 2 is located at the water sealing position, an active gap is formed between sealing washer 3 and sealing end face 10;When movable rod 2 is located at the water passing position, sealing washer 3 abuts on the sealing end face 10.

[0030] Further, the movable rod 2 is formed with a fixing protrusion 21; the sealing washer 3 is in the shape of a Chinese character "fang" in cross section, comprising an upper sealing surface 31, a side connecting surface 32 and a lower sealing surface 33, a limiting cavity is formed in the inner side of the sealing washer 3, and the fixing protrusion 21 is movably embedded into the limiting cavity. The sealing washer 3 is sleeved and fixed on the fixing protrusion 21 of the movable rod 2 to realize installation positioning and avoid falling off, so that the installation process is simpler. In this way, the sealing washer 3 can rotate relative to the fixing protrusion 21, so that the installation process is more relaxed and the phenomenon of damage of the sealing washer 3 is reduced.

[0031] The movable rod 2 at the center of the sealing washer 3 is provided with a water outlet 23, and the cross-sectional area of the water outlet 23 is 19-50mm 2 . Both the sufficient water flow and the sufficient wall thickness of the movable rod 2 to ensure the structural strength are ensured. The cross-sectional shape of the water outlet 23 can be circular or regular hexagonal.

[0032] Compared with the prior art, the axial length of the external thread 11 on the shell 1 is limited, and the axial total length of the external thread 11 and the sealing washer 3 is limited, so that when the angle valve and the faucet are installed in the pipe joint 100, the pipe joint has sufficient remaining threads to firmly connect with the angle valve and the faucet.

[0033] The above embodiments and drawings do not limit the product shape and style of the utility model, and any appropriate changes or modifications made by ordinary skilled persons in the art shall be considered as not departing from the patent category of the utility model.

Claims

1. A stop valve characterized by comprising: The utility model provides a sealing structure of valve, including shell and movable rod, be provided with sealing washer on movable rod, be provided with the sealing end surface of sealing washer abutment sealing of shell, the outer thread of shell outer wall forms, the end of outer thread is close to sealing washer with sealing end surface flush, the outer thread has 1-3 turns of screw thread.

2. A stop water valve as claimed in claim 1, wherein The outer thread has 1-1.5 turns of screw thread.

3. A stop water valve as defined in claim 1, wherein The axial length of the outer thread is 1.814-4 mm.

4. A stop water valve as defined in claim 1, wherein The movable rod has a water sealing position and a water passing position on the shell; when the movable rod is in the water sealing position, an active gap is formed between the sealing washer and the sealing end surface; when the movable rod is in the water passing position, the sealing washer abuts against the sealing end surface.

5. A stop water valve as defined in claim 1, wherein The axial total length of the outer thread and the sealing washer is 6-8 mm.

6. A stop water valve as defined in claim 1, wherein A fixing protrusion is formed on the movable rod; the cross section of the sealing washer is in the shape of a Chinese character, including an upper sealing surface, a side connecting surface and a lower sealing surface, a limiting cavity is formed on the inner side of the sealing washer, and the fixing protrusion is movably embedded into the limiting cavity.

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