A faucet valve disc and faucet valve facilitating assembly of a valve core

Abstract

The utility model discloses a faucet valve piece convenient to valve core assembly relates to faucet valve technical field, including the valve piece body, is provided with the valve piece channel along the thickness direction of valve piece body through setting, and the one side of valve piece body is away from valve core is provided with the sealing groove, and the sealing groove is used for installing the sealing ring, is provided with the stress structure on the inner wall of valve piece channel, and the stress structure extends outward along the radial direction of valve piece channel, and the stress structure is used for with the auxiliary tool is connected. Pulls outward both sides auxiliary tools, drives both sides valve piece extrusion sealing ring and removes to the direction of being away from valve core, and increases both sides valve piece interval, puts valve core between both sides valve piece, loosens auxiliary tool, and valve piece can reset, finally removes auxiliary tool, and the first sealing surface of valve piece will be close to valve core, and the assembly is completed, can reduce even cancel eccentricity, promotes the qualified rate, avoids the problem that valve piece and valve core sealing surface are scratched because of external force effect, and the valve core assembly difficulty is reduced greatly.

Description

Technical Field

[0001] This utility model relates to the field of plug valve technology, and in particular to a plug valve disc and plug valve that are easy to assemble with valve core. Background Technology

[0002] A plug valve is a rotary valve with a plunger-shaped closing element. It opens and closes by rotating 90 degrees to connect or disconnect the valve core passage from the valve body passage. The valve core shape is either cylindrical or conical.

[0003] An existing valve plate 02 is located between the existing valve core 01 and the existing valve body 04. An existing sealing ring 03 is fitted on the side of the existing valve plate 02 facing the existing valve body 04. Due to the influence of the existing sealing ring 03, the distance between the two existing valve plates 02 is smaller than the diameter of the cylindrical existing valve core 01, directly increasing the difficulty of assembling the existing valve core 01. To solve this problem, a certain eccentricity is maintained between the centers of the inner and outer circles of the existing valve plate 02 during the design phase to reserve a gap for the installation of the existing valve core 01. However, this eccentricity will make the fit clearance between the existing valve core 01 and the existing valve plate 02 too large, which will lead to a significant increase in the defect rate of the assembled product.

[0004] Installing the existing valve core 01 requires applying significant downward force. During this process, the sealing surfaces of the existing valve plate 02 and the existing valve core 01 are easily scratched. Damage to the sealing surfaces will directly cause sealing failure, requiring rework and repair. In severe cases, it can even lead to product scrapping and significant resource waste.

[0005] Therefore, there is an urgent need for a plug valve disc that is easy to assemble with the valve core. Utility Model Content

[0006] To solve the above technical problems, this utility model provides a valve disc and a valve that facilitate valve core assembly. While facilitating valve core assembly, it improves the pass rate and avoids scratches on the sealing surfaces of the valve disc and valve core.

[0007] To achieve the above objectives, this utility model provides the following solution: This utility model provides a valve disc for a plug valve that facilitates valve core assembly. The plug valve includes a valve core and a valve disc body. A valve disc channel is provided through the valve disc body along its thickness direction. A sealing groove is provided on the side of the valve disc body away from the valve core, and the sealing groove is used to install a sealing ring. A first sealing surface is provided on the side of the valve disc body facing the valve core for sealing with the valve core. A force-bearing structure is provided on the inner wall of the valve disc channel, and the force-bearing structure extends outward along the radial direction of the valve disc channel. The force-bearing structure is used to connect with an auxiliary tool.

[0008] Optionally, the force-bearing structure includes a hook groove, the hook groove includes a first force-bearing surface, the first force-bearing surface is located on the side of the hook groove away from the valve core; the auxiliary tool includes a hook, the hook is provided with a second force-bearing surface, and when the force-bearing structure is connected to the auxiliary tool, the first force-bearing surface and the second force-bearing surface are in contact.

[0009] Optionally, the first force-bearing surface extends radially from the inner wall of the valve plate channel, with the extension direction parallel to the radial direction of the valve plate channel, or offset away from the valve core.

[0010] Optionally, the first end of the auxiliary tool is used to connect to the driving device; the hook is disposed on the second end of the auxiliary tool, the second force-bearing surface faces the first end of the auxiliary tool, the first end and the second end of the auxiliary tool are located on the same axis, and the number of the second force-bearing surfaces is the same as the number of the force-bearing structures.

[0011] Optionally, the drive device includes a motor, a hydraulic cylinder, or a pneumatic cylinder.

[0012] Optionally, the force-bearing structure is a polygonal or circular hole.

[0013] Optionally, at least two force-bearing structures are provided on the valve plate channel, and the at least two force-bearing structures are distributed in a centrally symmetrical manner along the geometric center of the valve plate channel.

[0014] This utility model also provides a plug valve, including the valve plate described above.

[0015] The present invention achieves the following technical advantages over the prior art: When using the plug valve disc provided by this utility model, which facilitates valve core assembly, first insert the sealing ring into the sealing groove, then place the valve disc body with the sealing ring into the valve body, so that the valve disc channel is roughly aligned with the valve body channel; then, the auxiliary tool extends into the valve body channel and connects to the force-bearing structure of the valve disc, and pulls the auxiliary tools on both sides outward, which can drive the valve discs on both sides to squeeze the sealing ring and move away from the valve core, thereby increasing the distance between the valve discs on both sides; at this time, place the valve core between the valve discs on both sides, release the auxiliary tool, and the valve disc can be reset; finally, remove the auxiliary tool, and the first sealing surface of the valve disc will be tightly attached to the valve core, completing the assembly.

[0016] By increasing the distance between the valve plates on both sides, sufficient installation space is provided for the valve core, which can reduce or even eliminate the eccentricity between the centers of the inner and outer circles of the valve plates, thereby improving the pass rate.

[0017] The entire assembly process does not require applying significant external force to the valve core, effectively avoiding the problem of the valve plate and valve core sealing surface being scratched by external force. At the same time, the valve plate spacing can be adjusted by auxiliary tools, which greatly reduces the difficulty of valve core assembly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of an existing plug valve. Figure 2 This is a schematic diagram of the structure of the plug valve of this utility model; Figure 3 This is a schematic diagram of the valve plate of the plug valve of this utility model, which facilitates valve core assembly; Figure 4 This is a schematic diagram of the planar structure of the valve plate of the plug valve of this utility model, which facilitates valve core assembly; Figure 5 for Figure 4 Schematic diagram of the BB cross-section structure; Figure 6 for Figure 4 A schematic diagram of the AA cross-sectional structure.

[0020] Explanation of reference numerals in the attached figures: 01. Existing valve core; 02. Existing valve disc; 03. Existing sealing ring; 04. Existing valve body; 1. Valve core; 2. Valve disc; 3. Sealing ring; 4. Valve body; 5. Auxiliary tools; 6. Drive unit; 21. Valve plate body; 22. Valve plate channel; 23. Sealing groove; 24. Force-bearing structure. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: like Figures 1 to 6As shown, this embodiment provides a valve disc for a plug valve that facilitates valve core assembly. The plug valve includes a valve core 1 and a valve disc body 21. A valve disc channel 22 is provided through the valve disc body 21 along its thickness direction. A sealing groove 23 is provided on the side of the valve disc body 21 away from the valve core 1. The sealing groove 23 is used to install a sealing ring 3. A first sealing surface is provided on the side of the valve disc body 21 facing the valve core 1 for sealing with the valve core 1. A force-bearing structure 24 is provided on the inner wall of the valve disc channel 22. The force-bearing structure 24 extends outward along the radial direction of the valve disc channel 22 and is used to connect with an auxiliary tool 5.

[0023] When using the plug valve disc 2 provided by this utility model, which facilitates the assembly of the valve core 1, first insert the sealing ring 3 into the sealing groove 23, then place the valve disc body 21 with the sealing ring 3 into the valve body 4, so that the valve disc channel 22 is roughly aligned with the valve body 4 channel; then, the auxiliary tool 5 extends into the valve body 4 channel and connects to the force-bearing structure 24 of the valve disc 2, and pulls the auxiliary tools 5 outward, which can drive the valve discs 2 on both sides to squeeze the sealing ring 3 and move away from the valve core 1, thereby increasing the distance between the valve discs 2 on both sides; at this time, the valve core 1 is placed between the valve discs 2 on both sides, the auxiliary tool 5 is released, and the valve disc 2 can be reset. Finally, the auxiliary tool 5 is removed, and the first sealing surface of the valve disc 2 will be tightly attached to the valve core 1, completing the assembly.

[0024] By increasing the distance between the two valve plates 2, sufficient installation space is provided for the valve core 1, which can reduce or even eliminate the eccentricity between the centers of the inner and outer circles of the valve plate 2, thereby improving the pass rate.

[0025] The entire assembly process does not require applying significant external force to the valve core 1, effectively avoiding the problem of the valve plate 2 and the sealing surface of the valve core 1 being scratched by external force. At the same time, the valve plate 2 spacing is adjusted by the auxiliary tool 5, which greatly reduces the assembly difficulty of the valve core 1.

[0026] The force-bearing structure 24 includes a hook groove, and the hook groove includes a first force-bearing surface, which is located on the side of the hook groove away from the valve core 1; the auxiliary tool 5 includes a hook, and a second force-bearing surface is provided on the hook. When the force-bearing structure 24 is connected to the auxiliary tool 5, the first force-bearing surface and the second force-bearing surface abut against each other.

[0027] The hook in auxiliary tool 5 extends into the valve plate channel 22 and is controlled to enter the hook groove, so that the first force-bearing surface abuts against the second force-bearing surface. Then, the auxiliary tool 5 is pulled away from the valve core 1, and the valve plate 2 squeezes the sealing ring 3, which widens the gap between the two valve plates 2 on both sides of the valve core 1, thereby leaving a large enough installation space. The valve core 1 can be directly inserted from the top of the installation space. After the valve core 1 is fully inserted, the auxiliary tool 5 is released, and the valve plate 2 automatically resets and clamps the valve core 1 under the elastic force of the sealing ring 3. The first sealing surface is in close contact with the valve core 1 to form a seal. During the installation process, damage to the valve plate 2 or valve core 1 caused by the tool prying the valve plate 2 is avoided. In addition, during the installation of the valve core 1, there is almost no friction with the valve plate 2, which can prevent scratches from forming on the contact surface between the valve plate 2 and the valve core 1 and destroying the sealing effect.

[0028] The first force-bearing surface extends radially from the inner wall of the valve plate channel 22, with the extension direction parallel to the radial direction of the valve plate channel 22, or offset away from the valve core 1.

[0029] like Figure 2 and 5 As shown, the angle α between the first force-bearing surface and the axis of the valve channel 22 is greater than 90 degrees, preferably 90 degrees or 135 degrees, and the angle β between the second force-bearing surface and the axis of the valve channel 22 is less than 90 degrees, preferably 90 degrees or 45 degrees. This ensures that there is sufficient structural strength around the hook groove and that reliable force contact is formed with the second force-bearing surface, so that the auxiliary tool 5 can apply sufficient tension to the valve plate 2 to overcome the elasticity of the sealing ring 3.

[0030] The first end of the auxiliary tool 5 is used to connect to the drive device 6; the hook is set on the second end of the auxiliary tool 5, the second force-bearing surface faces the first end of the auxiliary tool 5, the first end and the second end of the auxiliary tool 5 are located on the same axis, and the number of the second force-bearing surfaces is the same as the number of the force-bearing structures 24.

[0031] At least two hook grooves can be evenly arranged in the circumferential direction of the valve plate channel 22 so that the pulling force of the auxiliary tool 5 on the valve plate 2 can be distributed to multiple hook grooves, reducing the force on a single hook groove and avoiding damage to the valve plate 2 during the pulling process. At the same time, it can make the valve plate 2 evenly stressed, thereby evenly squeezing the sealing ring 3 and avoiding damage caused by excessive pressure on a local area of ​​the sealing ring 3.

[0032] The drive unit 6 includes a motor, hydraulic cylinder, or pneumatic cylinder, and can also be manually pulled to give the auxiliary tool 5 a pulling force away from the valve core 1.

[0033] The force-bearing structure 24 is a polygonal or circular hole, as long as it can form a sufficiently tensile contact between the auxiliary tool 5 and the valve plate 2. In this specific embodiment, the horizontal cross-section of the force-bearing structure 24 is an equilateral right-angled triangle structure. One right-angled side of the triangle serves as the opening for the auxiliary tool 5 to enter, the other right-angled side serves as the first force-bearing surface, and the hypotenuse serves as the guide surface, so as to facilitate the entry of the auxiliary tool 5 into the force-bearing structure 24.

[0034] The force-bearing structure 24 and the auxiliary tool 5 can also be connected by magnetic attraction. For example, a permanent magnet or ferromagnetic metal can be embedded in the inner wall of the valve plate channel 22, and an electromagnet can be set at the end of the auxiliary tool 5. The connection between the force-bearing structure 24 and the auxiliary tool 5 can be completed by magnetic attraction. The electromagnet can control the connection or disconnection.

[0035] This utility model also provides a plug valve, including the valve plate 2 described above.

[0036] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] This specification uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A valve disc for a plug valve that facilitates valve core assembly, used in a plug valve, the plug valve comprising a valve core (1), characterized in that, The valve includes a valve body (21), a valve channel (22) is provided through the valve body (21) along the thickness direction, a sealing groove (23) is provided on the side of the valve body (21) away from the valve core (1), the sealing groove (23) is used to install a sealing ring (3); a first sealing surface is provided on the side of the valve body (21) facing the valve core (1) for sealing with the valve core (1); a force-bearing structure (24) is provided on the inner wall of the valve channel (22), the force-bearing structure (24) extends outward along the radial direction of the valve channel (22), the force-bearing structure (24) is used to connect with an auxiliary tool (5).

2. The valve disc of the plug valve according to claim 1, which facilitates valve core assembly, is characterized in that, The force-bearing structure (24) includes a hook groove, the hook groove includes a first force-bearing surface, the first force-bearing surface is located on the side of the hook groove away from the valve core (1); the auxiliary tool (5) includes a hook, the hook is provided with a second force-bearing surface, when the force-bearing structure (24) is connected to the auxiliary tool (5), the first force-bearing surface and the second force-bearing surface are connected in abutment.

3. The valve disc of the plug valve according to claim 2, which facilitates valve core assembly, is characterized in that, The first force-bearing surface extends radially from the inner wall of the valve plate channel (22) to the valve plate channel (22), and the extension direction is parallel to the radial direction of the valve plate channel (22), or offset in a direction away from the valve core (1).

4. The valve disc of the plug valve according to claim 2, which facilitates valve core assembly, is characterized in that, The first end of the auxiliary tool (5) is used to connect to the driving device (6); the hook is set on the second end of the auxiliary tool (5), the second force-bearing surface faces the first end of the auxiliary tool (5), the first end and the second end of the auxiliary tool (5) are located on the same axis, and the number of the second force-bearing surfaces is the same as the number of the force-bearing structures (24).

5. The valve disc of the plug valve according to claim 4, which facilitates valve core assembly, is characterized in that, The drive device (6) includes a motor, a hydraulic cylinder, or a pneumatic cylinder.

6. The valve disc of the plug valve according to claim 1, which facilitates valve core assembly, is characterized in that, The force-bearing structure (24) is a polygonal or circular hole.

7. The valve disc of the plug valve according to claim 1, which facilitates valve core assembly, is characterized in that, At least two force-bearing structures (24) are provided on the valve plate channel (22), and the at least two force-bearing structures (24) are centrally symmetrically distributed along the geometric center of the valve plate channel (22).

8. A plug valve, characterized in that, Includes the valve plate as described in any one of claims 1 to 7.

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