Valve element convenient to replace

Abstract

The utility model discloses a valve element convenient to replace and install. The valve element comprises an upper valve rod, a lower valve rod, a sealing head and a valve deck. The valve cover is mounted on the shell; the upper valve rod penetrates through the valve cover, and the upper valve rod is rotatably and fixedly connected to the valve cover; the lower valve rod is connected to the upper valve rod in a telescopic mode, and the upper valve rod rotates to drive the lower valve rod to stretch out and draw back. The sealing head is fixedly connected to the lower end of the lower valve rod and arranged at the water inlet of the shell in an opening and closing mode. Compared with the prior art, the valve element convenient to replace and install is low in cost and convenient to replace and install, and a user can replace and detach the valve element greatly conveniently.

Description

Technical Field

[0001] The utility model relates to the field of valve cores, and in particular to a valve core which is convenient to replace. Background Art

[0002] With the improvement of living standards, various valve cores have long been integrated into people's lives. The valve cores on the market usually control the water outlet by rotating the ceramic moving plate at a certain angle relative to the ceramic static plate. The ceramic valve core has the problems of high cost and inconvenient disassembly and replacement.

[0003] In view of this, the inventor conducted in-depth research on the above-mentioned defects in the prior art, and thus came up with this case. Utility Model Content

[0004] The main purpose of the utility model is to provide a valve core that is easy to replace, which has the advantages of low cost and convenient replacement.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] A valve core that is easy to replace, comprising an upper valve stem, a lower valve stem, a sealing head and a valve cover; the valve cover is installed on a shell; the upper valve stem passes through the valve cover, and the upper valve stem is rotatably and fixedly connected to the valve cover; the lower valve stem is telescopically connected to the upper valve stem, and the rotation of the upper valve stem drives the lower valve stem to extend and retract; the sealing head is fixedly connected to the lower end of the lower valve stem, and the sealing head can be opened and closed at the water inlet of the shell.

[0007] Furthermore, the lower valve stem is formed with a rotation-stopping strip, the valve cover is formed with a rotation-stopping groove, and the rotation-stopping strip can be slidably disposed in the rotation-stopping groove.

[0008] Furthermore, the lower valve stem is telescopically connected to the upper valve stem via threads.

[0009] Furthermore, a T-shaped head is formed at the lower end of the lower valve stem, the sealing head is annular, and the T-shaped head passes through the sealing head.

[0010] Furthermore, a stabilizing ring is formed at the lower end of the lower valve stem, and a portion of the stabilizing ring is wrapped around the outer wall of the sealing head.

[0011] Furthermore, a shift ring is provided on the upper part of the valve cover, and a plurality of shift grooves are formed on the shift ring; a shift cover is provided on the upper valve stem, and a shift pin is provided on the shift cover; the shift ring is fixedly connected to the valve cover, and the shift cover is fixedly connected to the upper valve stem, the shift cover is rotatably provided on the shift ring, and the shift pin is inserted in the shift groove.

[0012] Furthermore, a handle is installed at the upper end of the upper valve stem, and the handle is connected to the upper valve stem via a spline.

[0013] Furthermore, the valve cover and the housing are sealed and connected.

[0014] Furthermore, the sealing head is made of rubber material.

[0015] After adopting the above structure, the utility model relates to a valve core that is convenient to replace, which has at least the following beneficial effects:

[0016] First, the valve core can be disassembled by only unscrewing the threads of the valve cover and the housing. The user can screw the valve cover with the valve stem assembly onto the housing of the angle valve and the flat-opening ceramic valve core as needed. Therefore, it has better versatility and greatly facilitates users to disassemble and replace.

[0017] Second, the upper valve stem is rotated to drive the lower valve stem to extend and retract. As long as the upper valve stem is tightened, the sealing head on the lower valve stem can firmly seal the water inlet of the shell, thereby automatically compensating for wear during use and having better stability.

[0018] 3. By providing the stabilizing ring to wrap and support the sealing head, the deformation of the sealing head can be better controlled to prevent the sealing head from being excessively deformed and causing water leakage when high pressure is applied.

[0019] Fourth, through the cooperation of the gear pin and the gear slot, the upper valve stem can be rotated more clearly and stably, so the water output size can be better controlled.

[0020] Compared with the prior art, the utility model provides a valve core that is easy to replace, has low cost and convenient replacement, and greatly facilitates users to replace and disassemble the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a structural schematic diagram of a valve core which is convenient for replacement.

[0022] Figure 2 This is a cross-sectional view of the valve core in the open state.

[0023] Figure 3 It is a cross-sectional view of the valve core in the closed state.

[0024] Figure 4 The utility model relates to an exploded view of a valve core which is convenient for replacement.

[0025] Figure 5 This is an exploded view of the valve core from another angle.

[0026] Figure 6 This is a schematic diagram of the valve core structure from another angle.

[0027] In the figure:

[0028] Upper valve stem 1, lower valve stem 2, sealing head 3, valve cover 4,

[0029] Shift cover 11, shift pin 12, handle 13,

[0030] Anti-rotation strip 21, T-shaped head 22, stabilizing ring 23,

[0031] The anti-rotation groove 41, the gear ring 42, the gear groove 43,

[0032] Shell 1000 , water inlet 1001 , water outlet 1002 . DETAILED DESCRIPTION

[0033] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0034] like Figures 1 to 6 As shown, it is a valve core that is convenient to replace involved in the utility model, including an upper valve stem 1, a lower valve stem 2, a sealing head 3 and a valve cover 4; the valve cover 4 is arranged on the housing 1000 through a threaded fixing cover; the upper valve stem 1 passes through the valve cover 4, and the upper valve stem 1 is rotatably fixedly connected to the valve cover 4; the lower valve stem 2 is telescopically connected to the upper valve stem 1, and the rotation of the upper valve stem 1 drives the lower valve stem 2 to telescope; the sealing head 3 is fixedly connected to the lower end of the lower valve stem 2, and the sealing head 3 can be opened and closed and is arranged at the water inlet 1001 of the housing 1000. When in use, the upper valve stem 1 is rotated, and the upper valve stem 1 will drive the lower valve stem 2 to move downward until the sealing head 3 abuts against the water inlet 1001 of the housing 1000, so that the water inlet 1001 and the water outlet 1002 are not connected to each other, and the valve core is in a closed state. When the upper valve stem 1 is rotated in the other direction, the lower valve stem 2 moves upward, and the sealing head 3 moves away from the water inlet 1001. At this time, the water inlet 1001 and the water outlet 1002 are connected, and the valve core is in an open state. When replacement and disassembly are required, only the threads of the valve cover 4 and the housing 1000 need to be unscrewed to disassemble the valve core. Users can screw the valve cover 4 with the valve stem assembly onto the housing 1000 of the angle valve and the flat ceramic valve core as needed. Therefore, it has better versatility and greatly facilitates users to disassemble and replace.

[0035] Preferably, if Figure 4 and Figure 5 As shown, the lower valve stem 2 is formed with a rotation-stopping strip 21, the valve cover 4 is formed with a rotation-stopping groove 41, the rotation-stopping strip 21 is slidably disposed in the rotation-stopping groove 41, and the lower valve stem 2 is telescopically connected to the upper valve stem 1 through a thread. In this way, when the upper valve stem 1 is rotated, the rotation-stopping groove 41 and the rotation-stopping strip 21 will limit the rotation of the lower valve stem 2, so that the lower valve stem 2 can be telescopically extended along the thread direction.

[0036] Preferably, a T-shaped head 22 is formed at the lower end of the lower valve stem 2, and the sealing head 3 is annular, and the T-shaped head 22 passes through the sealing head 3. The T-shaped head 22 is inserted through the middle of the sealing head 3 in the form of a barb to fix the sealing head 3, and a stabilizing ring 23 is formed at the lower end of the lower valve stem 2, and the stabilizing ring 23 is partially wrapped around the outer wall of the sealing head 3. By providing the stabilizing ring 23 to wrap and resist the sealing head 3, the deformation of the sealing head 3 can be better controlled to prevent the sealing head 3 from being excessively deformed and causing water leakage when high pressure is applied.

[0037] In addition, a shift ring 42 is provided on the upper part of the valve cover 4, and a plurality of shift slots 43 are formed on the shift ring 42; a shift cover 11 is provided on the upper valve stem 1, and a shift pin 12 is provided on the shift cover 11; the shift ring 42 is fixedly connected to the valve cover 4, and the shift cover 11 is fixedly connected to the upper valve stem 1, and the shift cover 11 is rotatably covered on the shift ring 42, and the shift pin 12 is inserted in the shift slot 43. Through the cooperation of the shift pin 12 and the shift slot 43, the upper valve stem 1 can be made to rotate more clearly and stably, so the water output size can be better controlled.

[0038] Preferably, if Figure 1 and Figure 2 As shown, a handle 13 is installed on the upper end of the upper valve stem 1, and the handle 13 is spline-connected to the upper valve stem 1. In this way, rotating the handle 13 can drive the upper valve stem 1 to rotate, thereby realizing the opening and closing of the valve core.

[0039] Preferably, the valve cover 4 is sealed and connected to the housing 1000. The sealing head 3 is made of rubber.

[0040] Compared with the prior art, the utility model provides a valve core that is easy to replace, has low cost and convenient replacement, and greatly facilitates users to replace and disassemble the valve core.

[0041] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A valve core that is easy to replace, characterized in that: It includes an upper valve stem, a lower valve stem, a sealing head and a valve cover; the valve cover is installed on the shell; the upper valve stem passes through the valve cover, and the upper valve stem is rotatably fixedly connected to the valve cover; the lower valve stem is telescopically connected to the upper valve stem, and the rotation of the upper valve stem drives the lower valve stem to be telescopic; the sealing head is fixedly connected to the lower end of the lower valve stem, and the sealing head can be opened and closed at the water inlet of the shell.

2. A valve core that is easy to replace as claimed in claim 1, characterized in that: The lower valve stem is formed with a rotation-stopping strip, and the valve cover is formed with a rotation-stopping groove, and the rotation-stopping strip can be slidably disposed in the rotation-stopping groove.

3. The conveniently replaceable valve core according to claim 1, characterized in that: The lower valve stem is telescopically connected to the upper valve stem via threads.

4. The conveniently replaceable valve core according to claim 1, characterized in that: A T-shaped head is formed at the lower end of the lower valve stem. The sealing head is annular and the T-shaped head passes through the sealing head.

5. The conveniently replaceable valve core according to claim 1, characterized in that: A stabilizing ring is formed at the lower end of the lower valve stem, and a portion of the stabilizing ring is wrapped around the outer wall of the sealing head.

6. The conveniently replaceable valve core according to claim 1, characterized in that: A shift ring is arranged on the upper part of the valve cover, and a plurality of shift grooves are formed on the shift ring; a shift cover is arranged on the upper valve stem, and a shift pin is arranged on the shift cover; the shift ring is fixedly connected to the valve cover, and the shift cover is fixedly connected to the upper valve stem, the shift cover is rotatably arranged on the shift ring, and the shift pin is inserted in the shift groove.

7. The conveniently replaceable valve core according to claim 1, characterized in that: A handle is installed at the upper end of the upper valve stem, and the handle is connected to the upper valve stem through a spline.

8. The conveniently replaceable valve core according to claim 1, characterized in that: The valve cover is sealed and connected to the housing.

9. The conveniently replaceable valve core according to claim 1, characterized in that: The sealing head is made of rubber material.

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