Valve element and angle valve

Abstract

The utility model discloses a valve core and an angle valve, the valve core is provided with a shell, and the shell is provided with a water passing window; a valve rod, a movable piece and a static piece are arranged in the shell, and the valve rod is connected with the movable piece. The two sides, corresponding to the water passing window, of the shell are a shell inner section corresponding to the side where the static piece is located and a shell outer section corresponding to the side where the valve rod is located respectively. And a locking thread is arranged on the outer side wall of the inner section of the shell. According to the valve element, the original space of the inner section of the shell is ingeniously utilized, the locking threads are arranged on the space, and an extension section does not need to be specially arranged on the shell to form a threaded section, so that the material cost is reduced, the internal structure of the valve element is simplified, the overall height of the valve element can be reduced, and the flexibility in application is improved. The valve element is applied to the angle valve, and the valve body can also have the corresponding technical effects.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve core and an angle valve. Background Art

[0002] Angle valves are common water flow control devices in daily life. Angle valves control the flow of water by opening or closing operations. The valve body of the angle valve has a water inlet and a water outlet. When in use, the water inlet is connected to the water inlet pipe, and the water outlet is connected to the water outlet for connecting to a faucet or a water heater. An installation cavity is formed in the valve body, and a valve core is fixedly arranged in the installation cavity, and the opening and closing of the water outlet is controlled by the valve core. The fixed installation method of the valve core in the installation cavity usually adopts a threaded locking method, that is, an internal thread section is added at the outer end position of the installation cavity, and an external thread section is added at the corresponding position of the valve core on its shell; when fixedly installed, the valve core extends into the installation cavity from the outer end, and then the external thread section and the internal thread section are locked and matched with each other to complete the installation. For the locking method of the internal and external threads, the shell of the valve core needs to be specially extended to form the external thread section, which increases the cost of manufacturing the valve core.

[0003] In view of this, the applicant conducted in-depth research on the above-mentioned prior art problems, which led to the present case. Utility Model Content

[0004] The utility model aims to provide a valve core, which has the characteristics of simplified structure, reduced valve core height, reduced cost, and improved application performance of the valve core.

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

[0006] A valve core comprises a shell with a water flow window provided on the shell; a valve stem, a moving plate and a stationary plate are provided in the shell, and the valve stem is connected to the moving plate; the two sides of the shell corresponding to the water flow window are respectively an inner section of the shell corresponding to the stationary plate side and an outer section of the shell corresponding to the valve stem side; a locking thread is provided on the outer side wall of the inner section of the shell.

[0007] The locking thread is arranged on the outer side wall of the inner section of the shell body close to the free end thereof.

[0008] The inner section of the shell is provided with a static piece limiting groove, and the static piece is provided with a limiting block correspondingly embedded in the static piece limiting groove.

[0009] The setting position of the locking thread on the outer side wall of the inner section of the shell is limited within the range of the outer side wall portion corresponding to the static piece and is smaller than the range.

[0010] The valve stem is provided with a sealing groove, in which a first sealing member is installed, and the valve stem and the housing are sealed by the first sealing member.

[0011] The valve stem is provided with a limiting flange, and the housing is formed with a limiting surface. The limiting flange abuts against the limiting surface and a second sealing member is provided between the two.

[0012] A third sealing member is arranged on the outer side wall of the outer section of the shell.

[0013] A limiting seat is also arranged on one end of the shell corresponding to the static piece, and a fourth sealing member for sealing with the static piece and a fifth sealing member for sealing with the external structure are arranged on the limiting seat.

[0014] An angle valve comprises a valve body and the valve core installed on the valve body; a valve core cavity for installing the valve core is formed on the valve body; the inner cavity wall of the inner end of the valve core cavity is provided with a first thread corresponding to the locking thread.

[0015] After adopting the above scheme, the beneficial effect of the valve core and angle valve of the present invention compared with the prior art is that the shell of the valve core is divided into an inner shell section and an outer shell section with the water window as the boundary, and the inner shell section corresponds to the side where the static piece is located; because the structure of the static piece is designed to be accommodated in the shell, the inner shell section becomes the part that originally needs to be set because of the static piece itself. The present application cleverly utilizes the space originally existing in this section of the inner shell section to set a locking thread on this section of space. There is no need to specially set an extension section on this shell to form a threaded section. This not only reduces the material cost, but also simplifies the internal structure of the valve core. The overall height of the valve core can also be reduced, which improves the flexibility in application. The valve core of the present application is used in an angle valve, and the valve body can also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of the novel valve core;

[0017] Figure 2 This is an exploded view of the new valve core;

[0018] Figure 3 This is a cross-sectional view of the novel valve core;

[0019] Figure 4 This is a cross-sectional view of the new angle valve.

[0020] Description of symbols

[0021] Valve body 1, valve core cavity 13, first thread 131;

[0022] Valve core 2, housing 21, water window 211, housing inner section 212, locking thread 2121, static plate limiting groove 2122, housing outer section 213, limiting surface 214, valve stem 22, sealing groove 221, limiting flange 222, moving plate 23, static plate 24, limiting block 241, limiting seat 26;

[0023] A first sealing member 31 , a second sealing member 32 , a third sealing member 33 , a fourth sealing member 34 , and a fifth sealing member 35 . DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] This case involves a valve core, such as Figure 1-3 As shown, there is a housing 21, and a water window 211 is provided on the housing 21. A valve stem 22, a moving piece 23 and a static piece 24 are provided in the housing 21, and the valve stem 22 is connected with the moving piece 23, and the moving piece 23 is driven by the valve stem 22 to rotate, and the opening or closing operation of the valve core is realized by the cooperation between the moving piece 23 and the static piece 24.

[0026] The housing 21 is bounded by a water window 211. Figure 1 The corresponding upper and lower side parts are respectively the inner section 212 of the shell and the outer section 213 of the shell. The inner section 212 of the shell corresponds to the side where the static plate 24 is located, and is installed at the inner end of the angle valve body when used; the outer section 213 of the shell corresponds to the side where the valve stem 22 is located, and is installed at the outer end of the angle valve body when used.

[0027] The valve core of the present application is provided with a locking thread 2121 on the outer side wall of the inner section 212 of the housing, and the locking thread 2121 is used to be threadedly connected with the relevant external structure to achieve fixed installation of the valve core. The inner section 212 of the housing has a height at least for accommodating and installing the static plate 24, and can be lengthened upwards to partially surround the height of the dynamic plate 23 according to actual conditions. The locking thread 2121 can be set at any height position of the inner section 212 of the housing. In the preferred embodiment given, the locking thread 2121 is set on the outer side wall of the inner section 212 of the housing as close to its free end as possible, that is, on the side wall position corresponding to the static plate 24.

[0028] The structure of the static piece 24 is designed to be accommodated in the shell 21, and the inner section 212 of the shell becomes the part that originally needs to be set up in the shell because of the static piece 24 itself. The present application cleverly utilizes the originally existing space of the inner section 212 of the shell to set a locking thread 2121 in this space. There is no need to specially set up an extension section on the shell 21 (the prior art specially sets an extension section at the upper end of the shell) to form a threaded section. This not only reduces the material cost, but also simplifies the internal structure of the valve core. The overall height of the valve core can also be reduced, thereby improving the flexibility in application.

[0029] Preferably, the inner section 212 of the housing is provided with a static piece limiting groove 2122, and the static piece 24 is provided with a limiting block 241. In a specific implementation, the static piece limiting groove 2122 is opened at a position corresponding to the free end of the inner section 212 of the housing. The limiting block 241 is convexly arranged on the side of the static piece 24. By designing that the limiting block 241 is correspondingly embedded in the static piece limiting groove 2122, the static piece 24 is installed and positioned in the inner section 212 of the housing. In a specific embodiment, the static piece limiting groove 2122 and the limiting block 241 are provided with two sets of relatively arranged groups in a one-to-one correspondence, which is conducive to more stable positioning of the static piece 24.

[0030] Preferably, the location of the locking thread 2121 on the outer side wall of the housing inner section 212 is limited within the range of the outer side wall portion corresponding to the static piece 24 and is smaller than the range. In this way, the threaded connection performance of the locking thread 2121 is not affected while ensuring the positioning and installation of the static piece 24.

[0031] Preferably, a seal is provided between the valve stem 22 and the housing 21. Specifically, a seal groove 221 is provided on the valve stem 22, and a first seal 31 is installed in the seal groove 221. The valve stem 22 and the housing 21 are sealed by the first seal 31. In a specific embodiment, two sets of seal grooves 221 and first seals 31 are provided in a one-to-one correspondence to improve the sealing effect.

[0032] Preferably, a limiting flange 222 is provided on the valve stem 22, and a limiting surface 214 is formed on the housing 21; the valve stem 22 is inserted from the lower end of the housing 21 for installation, and when the limiting flange 222 abuts against the limiting surface 214, the valve stem 22 is installed in place, and the handle end of the valve stem 22 extends out of the housing 21. A second sealing member 32 is provided between the limiting flange 222 and the limiting surface 214.

[0033] Preferably, a third sealing member 33 is provided on the outer side wall of the housing outer section 213. When the valve core is connected to the external structure, the third sealing member 33 realizes the sealing function of the housing 21 at the corresponding position.

[0034] Preferably, a limit seat 26 is further arranged on the end of the housing 21 corresponding to the static piece 24. After the valve stem 22, the moving piece 23 and the static piece 24 are sequentially extended from the lower end of the housing 21 and installed in place, they are fixedly installed on the end of the housing 21 by the limit seat 26, so as to realize the stable assembly of the valve core structure. A sealing groove is provided on the side of the limit seat 26 that is in close contact with the static piece 24, and a fourth sealing member 34 is installed in the sealing groove to realize the sealing setting of the limit seat 26 and the static piece 24. A sealing groove is provided on the outer surface of the limit seat 26, and a fifth sealing member 35 is installed in the sealing groove, which is used for the sealing effect of the valve core corresponding to the position when connected with an external structure (such as a valve body).

[0035] The present application also relates to an angle valve, such as Figure 4 As shown, it includes a valve body 1 and a valve core 2 installed on the valve body 1; the valve core 2 adopts the valve core described above. A valve core cavity 13 for installing the valve core 2 is formed on the valve body 1; the inner cavity wall of the inner end of the valve core cavity 13 is provided with a first thread 131 corresponding to the locking thread 2121.

[0036] The above description is only the preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

1. A valve core, characterized in that: The utility model has a shell body, on which a water passing window is arranged; a valve stem, a moving plate and a static plate are arranged in the shell body, and the valve stem is connected with the moving plate; the two sides of the shell body corresponding to the water passing window are respectively an inner section of the shell body corresponding to the static plate side and an outer section of the shell body corresponding to the valve stem side; a locking thread is arranged on the outer side wall of the inner section of the shell body.

2. A valve core according to claim 1, characterized in that: The locking thread is arranged on the outer side wall of the inner section of the shell body close to the free end thereof.

3. A valve core according to claim 1, characterized in that: The inner section of the shell is provided with a static piece limiting groove, and the static piece is provided with a limiting block correspondingly embedded in the static piece limiting groove.

4. A valve core according to claim 1, characterized in that: The setting position of the locking thread on the outer side wall of the inner section of the shell is limited within the range of the outer side wall portion corresponding to the static piece and is smaller than the range.

5. A valve core according to claim 1, characterized in that: The valve stem is provided with a sealing groove, in which a first sealing member is installed, and the valve stem and the housing are sealed by the first sealing member.

6. A valve core according to claim 1, characterized in that: The valve stem is provided with a limiting flange, and the housing is formed with a limiting surface. The limiting flange abuts against the limiting surface and a second sealing member is provided between the two.

7. A valve core according to claim 1, characterized in that: A third sealing member is arranged on the outer side wall of the outer section of the shell.

8. A valve core according to claim 1, characterized in that: A limiting seat is also arranged on one end of the shell corresponding to the static piece, and a fourth sealing member for sealing with the static piece and a fifth sealing member for sealing with the external structure are arranged on the limiting seat.

9. An angle valve, characterized in that: It comprises a valve body and a valve core as claimed in any one of claims 1 to 8 installed on the valve body; a valve core cavity for installing the valve core is formed on the valve body; and a first thread corresponding to the locking thread is provided on the inner cavity wall at the inner end of the valve core cavity.

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