A valve body of a wall corner valve

Abstract

The utility model discloses a valve body of wall -corner -buried valve, including insert and injection moulded valve body main part, be provided with first cavity, second cavity and third cavity in valve body main part, first cavity one end horizontal extension to valve body main part right end surface, form water inlet, second cavity vertical extension to the upper end surface of valve body main part, form installation mouth, second cavity lower extreme with first cavity inner end communication, one end of third cavity with second cavity lower extreme cross, and second cavity forms water pass -through hole under third cavity, and insert upper end is provided with outer thread, and lower extreme is embedded on valve body main part upside, and insert is provided with arc -shaped flow channel in, and the water outlet is formed to flow channel upper end, and third cavity extends to insert along the arc, and with flow channel concentric link, and the inner wall of third cavity is flush with flow channel. The utility model puts forward a valve body of wall -corner -buried valve, after injection moulding, do not produce the redundant opening, do not need to install the plug, simplify production, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wall-mounted angle valve technology, and in particular to a valve body for a wall-mounted angle valve. Background Technology

[0002] Angle valves are a common type of valve in home plumbing and electrical projects. They are mainly used to control the on / off switching and regulation of water flow, connect water pipes to water-using equipment, and facilitate quick shut-off of the water source when repairing or replacing individual equipment without having to shut off the main valve.

[0003] As a type of angle valve, the embedded angle valve body is pre-embedded in the wall, making it simpler and more aesthetically pleasing than ordinary angle valves. Existing embedded angle valve bodies, such as the body in patent application number CN202111636926.6, are basically linear injection-molded structures. After initial injection molding, the body forms an opening on the side for installing a handwheel and another for installing a connector. It also has an opening for water inlet at one end and an opening that needs to be sealed at the other. Since the body has this sealing opening after injection molding, traditional embedded angle valve bodies require adhesive to seal this opening with a plug after injection molding, increasing production steps and reducing production efficiency. Utility Model Content

[0004] To address the drawback of existing wall-mounted angle valves where additional openings need to be sealed with plugs after injection molding, this invention proposes a new type of wall-mounted angle valve body that, after injection molding, does not produce additional openings and eliminates the need for plugs, thus simplifying production and improving efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A valve body for a wall-mounted angle valve includes an insert and an injection-molded valve body. The valve body has a first cavity, a second cavity, and a third cavity. One end of the first cavity extends horizontally to the right end face of the valve body to form a water inlet. The second cavity extends vertically to the upper end face of the valve body to form an installation port. The lower end of the second cavity is connected to the inner end of the first cavity. One end of the third cavity intersects with the lower end of the second cavity. The second cavity forms a water passage hole on the lower side of the third cavity. The upper end of the insert has an external thread, and the lower end is embedded on the upper side of the valve body. The insert has an arc-shaped flow channel, and the upper end of the flow channel forms a water outlet. The third cavity extends along the arc to the insert and is concentrically connected with the flow channel. The inner wall of the third cavity is flush with the flow channel.

[0006] With the above settings, the valve body can be obtained by injection molding. After injection molding, the surface of the valve body forms an inlet, an outlet, and an installation port, without creating extra openings. This eliminates the need for additional plugs, reduces production steps, and improves production efficiency.

[0007] Furthermore, the third cavity includes a third cavity segment one and a third cavity segment two arranged concentrically. The third cavity segment one is used to install the valve core of the wall-embedded angle valve and crosses the lower end of the second cavity. The width of the third cavity segment one is smaller than the width of the third cavity segment two. One end of the third cavity segment two is connected to the third cavity segment one, and the other end is connected to the flow channel.

[0008] The above-mentioned design facilitates the formation of water passage holes, which is beneficial for the miniaturization of the valve body.

[0009] Furthermore, a slope is provided at one end of the third cavity segment one near the third cavity segment two. The slope is located on the side of the third cavity segment one away from the mounting port. One end of the slope extends to the outer peripheral surface of the third cavity segment one, and the other end is inclined away from the mounting port and extends to the end face of the third cavity segment two.

[0010] The above settings facilitate the extraction of the third mold core. In addition, the slope serves as a transition, which helps to reduce water flow noise in the valve body.

[0011] Furthermore, a positioning key is fixedly connected to the outside of the insert, and the positioning key is located on the side of the insert away from the mounting opening.

[0012] The above settings facilitate insert positioning.

[0013] Furthermore, the center of the third cavity is located on the upper end face of the valve body and on the axis of the second cavity.

[0014] Furthermore, the insert protrudes from the upper surface of the valve body by a height of h, and the bending radius of the flow channel is r. <h / r< / 。

[0015] By controlling the central angle of the flow channel through the above settings, the wall thickness of the insert can be controlled, thus preventing the insert wall thickness from being too thin.

[0016] Furthermore, the first cavity includes a first cavity segment one and a first cavity segment two. The width of the first cavity segment one is smaller than the width of the first cavity segment two. The first cavity segment one is located below the second cavity and communicates with the second cavity. One end of the first cavity segment two extends through to the right end face of the valve body, and the other end communicates with the right end of the first cavity segment one.

[0017] Furthermore, the second cavity includes a second cavity segment one and a second cavity segment two. The width of the second cavity segment one is greater than the width of the second cavity segment two. The upper end of the second cavity segment one extends to the upper end face of the valve body. The lower end of the second cavity segment one is connected to the upper end of the second cavity segment two. The middle part of the second cavity segment two intersects with the third cavity segment one. The third cavity segment one divides the second cavity segment two into an upper and lower shaft cavity and the water passage hole. The shaft cavity is used to install the rotating shaft of the wall-mounted angle valve. The width of the shaft cavity is greater than the width of the water passage hole. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the valve body in an embodiment.

[0019] Figure 2 This is a cross-sectional view of the valve body in an embodiment.

[0020] Figure 3 This is a schematic diagram of the valve body injection molding process in an embodiment. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0022] like Figures 1 to 3 A valve body for a wall-mounted angle valve includes an insert 3 and an injection-molded valve body 4. The valve body 4 has a first cavity 5, a second cavity 6, and a third cavity 7. One end of the first cavity 5 extends horizontally to the right end face of the valve body 4 to form an inlet 8. The second cavity 6 extends vertically to the upper end face of the valve body 4 to form an installation port 9. The lower end of the second cavity 6 is connected to the inner end of the first cavity 5. One end of the third cavity 7 intersects with the lower end of the second cavity 6. The second cavity 6 forms a water passage hole 622 on the lower side of the third cavity 7. The upper end of the insert 3 is provided with an external thread, and the lower end is pre-embedded on the upper side of the valve body 4. The insert 3 has an arc-shaped flow channel 11. The upper end of the flow channel 11 forms an outlet 12. The third cavity 7 extends along the arc to the insert 3 and is concentrically connected with the flow channel 11. The inner wall of the third cavity 7 is flush with the flow channel 11.

[0023] With the above settings, the valve body can be obtained by injection molding. After injection molding, the surface of the valve body forms an inlet 8, an outlet 12 and an installation port 9, without generating extra openings. No additional plugs are needed, reducing production steps and improving production efficiency.

[0024] Specifically, during the production of the valve body of this application, the insert 3 is first placed in the mold. The insert 3 in this application is specifically a copper hardware part with good corrosion resistance. The first mold core 13, which is adapted to the first cavity 5, moves horizontally to the left into the mold. The third mold core 14, which is adapted to the third cavity 7, such as... Figure 3 After rotating counterclockwise, it passes through the flow channel 11 of the insert 3 and enters the mold. The center of rotation of the third mold core 14 is concentric with the center of the third cavity 7. The end of the third mold core 14 is provided with a hole that matches the water passage 622. The second mold core 15, which matches the second cavity 6, enters the mold downwards, and its lower end passes through the hole of the third mold core 14. Then, after the slurry is injected into the mold, it solidifies around the first mold core 13, the second mold core 15, and the third mold core 14 to form a valve body. Figure 3After the mold is opened, the first mold core 13 is pulled horizontally to the right, the second mold core 15 is pulled vertically upward, and the third mold core 14 is pulled clockwise, finally obtaining the formed valve body. This valve body has only three openings, namely, the water inlet 8 with the opening to the right, and the water outlet 12 and the installation port 9 with the opening upward. The valve body is basically an F-shaped structure, without producing extra openings. Compared with the valve body of the traditional wall-mounted angle valve, it has one less opening, and there is no need to use a plug to close the extra openings, saving production steps and improving production efficiency.

[0025] In use, the valve body of this application has an inlet 8 connected to an inlet pipe, a mounting port 9 for installing a handwheel, a third cavity 7 near the second cavity 6 for installing a valve core, and an insert 3 for threaded connection to an outlet pipe. Rotating the handwheel drives the valve core to rotate, thereby controlling the opening and closing of the angle valve. After the angle valve is opened, water in the inlet pipe is transported to the outlet pipe through the water passage 622, the valve core, the third cavity 7, and the insert 3.

[0026] As one implementation, the third cavity 7 includes a third cavity segment 1 71 and a third cavity segment 2 72 arranged concentrically. The third cavity segment 1 71 is used to install the valve core of the wall-embedded angle valve and crosses the lower end of the second cavity 6. The width of the third cavity segment 1 71 is smaller than the width of the third cavity segment 2 72. One end of the third cavity segment 2 72 is connected to the third cavity segment 1 71, and the other end is connected to the flow channel 11.

[0027] The above settings facilitate the formation of the water passage hole 622, which is beneficial for the miniaturization of the valve body.

[0028] In this application, the end of the third cavity segment 71 near the second cavity 6 narrows to facilitate its intersection with the lower end of the second cavity 6. During injection molding, the slurry fills the space between the third cavity segment 71 and the first cavity 5 to form a water passage hole 622. The sides of the third cavity segment 71 and the third cavity segment 72 near the mounting port 9 are flush with each other. The inner and outer arc surfaces of the third cavity segment 71 and the inner and outer arc surfaces of the third cavity segment 72 are at the same center. The third mold core 14 can be pulled out by rotating around the center to form the third cavity 7.

[0029] As one implementation, a slope 73 is provided at one end of the third cavity segment 1 71 near the third cavity segment 2 72. The slope 73 is located on the side of the third cavity segment 1 71 away from the mounting port 9. One end of the slope 73 extends to the outer peripheral surface of the third cavity segment 1 71, and the other end is inclined away from the mounting port 9 and extends to the end face of the third cavity segment 2 72.

[0030] The above settings facilitate the extraction of the third mold core 14. In addition, the inclined surface 73 serves as a transition, which helps to reduce water flow noise in the valve body.

[0031] As one implementation method, a positioning key 16 is fixedly connected to the outside of the insert 3, and the positioning key 16 is located on the side of the insert 3 away from the mounting port 9.

[0032] The above settings facilitate the positioning of insert 3.

[0033] The positioning key 16 of this application is integrally formed with the insert 3. During injection molding, the positioning key 16 is used to conveniently position the angle of the insert 3 so that the center of the flow channel 11 in the insert 3 can be concentric with the center of the third mold core 14. When the third mold core 14 rotates counterclockwise around the center, it can smoothly pass through the insert 3.

[0034] In one implementation, the center of the third cavity 7 is located on the upper end face of the valve body 4 and on the axis of the second cavity 6.

[0035] The central angle of the third cavity 7 in this application is approximately 90 degrees. The end of the third cavity 7 closest to the second cavity 6 is approximately horizontal to the right and intersects with the lower end of the second cavity 6. The other end of the third cavity 7 is approximately vertical upward.

[0036] As one implementation, the insert 3 protrudes from the upper end face of the valve body 4 at a height of h, and the bending radius of the flow channel 11 is r, 1 / 5 <h / r<1 / 3。

[0037] By controlling the central angle of the flow channel 11, the wall thickness of the insert 3 is controlled, thus preventing the wall thickness of the insert 3 from being too thin.

[0038] The bending radius of the flow channel in this application is specifically the bending radius of the center line of the flow channel. The outer diameter of the external thread of the insert 3 is fixed by national standard. The outer surface of the insert 3 is basically a vertical cylinder, and the internal flow channel 11 is an arc. The central angle of the flow channel 11 is controlled to prevent the central angle from being too large, so that the flow channel 11 is closer to a straight line extension, thereby making the wall thickness of the insert 3 more stable.

[0039] As one implementation, the first cavity 5 includes a first cavity segment 51 and a first cavity segment 52. The width of the first cavity segment 51 is smaller than the width of the first cavity segment 52. The first cavity segment 51 is located below the second cavity 6 and communicates with the second cavity 6. One end of the first cavity segment 52 extends through to the right end face of the valve body 4, and the other end communicates with the right end of the first cavity segment 51.

[0040] The lower sides of the first cavity segment 51 and the second cavity segment 62 of this application are basically flush. The upper middle part of the first cavity segment 51 is connected to the lower end of the second cavity 6. The width of the first cavity segment 51 is small to reduce the volume of the valve body 4. The width of the first cavity segment 52 is large to facilitate the insertion of external pipelines.

[0041] As one implementation, the second cavity 6 includes a second cavity segment 61 and a second cavity segment 62. The width of the second cavity segment 61 is greater than the width of the second cavity segment 62. The upper end of the second cavity segment 61 extends to the upper surface of the valve body 4. The lower end of the second cavity segment 61 is connected to the upper end of the second cavity segment 62. The middle part of the second cavity segment 62 intersects with the third cavity segment 71. The third cavity segment 71 divides the second cavity segment 62 into an upper and lower shaft cavity 621 and a water passage hole 622. The shaft cavity 621 is used to install the rotating shaft of the wall-mounted angle valve. The width of the shaft cavity 621 is greater than the width of the water passage hole 622.

[0042] The second cavity segment 61 of this application has a larger width and a circular cross-section, with a circular mounting opening 9 at the top for easy installation of a circular handwheel. The width of the shaft cavity 621 is smaller than that of the second cavity segment 61, and the cross-section of the shaft cavity 621 is circular for easy installation of the handwheel shaft. The cross-section of the water passage hole 622 is also circular, and its width is smaller than that of the shaft cavity 621. That is, the width of the second cavity 6 gradually decreases from top to bottom, which facilitates the core pulling of the second mold core 15.

[0043] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A valve body for a wall-embedded angle valve, characterized in that, The valve body includes an insert and an injection-molded valve body. The valve body contains a first cavity, a second cavity, and a third cavity. One end of the first cavity extends horizontally to the right end face of the valve body, forming a water inlet. The second cavity extends vertically to the upper end face of the valve body, forming an installation port. The lower end of the second cavity communicates with the inner end of the first cavity. One end of the third cavity intersects with the lower end of the second cavity. A water passage is formed on the lower side of the third cavity in the second cavity. The insert has an external thread at its upper end and is pre-embedded on the upper side of the valve body. An arc-shaped flow channel is provided within the insert, with an outlet at its upper end. The third cavity extends along the arc to the insert and is concentrically connected to the flow channel. The inner wall of the third cavity is flush with the flow channel.

2. The valve body of the wall-embedded angle valve according to claim 1, characterized in that, The third cavity includes a third cavity segment one and a third cavity segment two arranged concentrically. The third cavity segment one is used to install the valve core of the wall-embedded angle valve and crosses the lower end of the second cavity. The width of the third cavity segment one is smaller than the width of the third cavity segment two. One end of the third cavity segment two is connected to the third cavity segment one, and the other end is connected to the flow channel.

3. The valve body of the wall-embedded angle valve according to claim 2, characterized in that, The third cavity segment one is provided with an inclined surface at one end near the third cavity segment two. The inclined surface is located on the side of the third cavity segment one away from the mounting port. One end of the inclined surface extends to the outer peripheral surface of the third cavity segment one, and the other end is inclined away from the mounting port and extends to the end face of the third cavity segment two.

4. The valve body of a wall-embedded angle valve according to claim 1, characterized in that, A positioning key is fixedly connected to the outside of the insert, and the positioning key is located on the side of the insert away from the mounting opening.

5. The valve body of a wall-embedded angle valve according to claim 1, characterized in that, The center of the third cavity is located on the upper end face of the valve body and on the axis of the second cavity.

6. The valve body of a wall-embedded angle valve according to claim 1, characterized in that, The insert protrudes from the upper end face of the valve body by a height of h, and the bending radius of the flow channel is r, 1 / 5. <h / r<1 / 3。 7. The valve body of a wall-embedded angle valve according to claim 3, characterized in that, The first cavity includes a first cavity segment one and a first cavity segment two. The width of the first cavity segment one is smaller than the width of the first cavity segment two. The first cavity segment one is located below the second cavity and communicates with the second cavity. One end of the first cavity segment two extends through to the right end face of the valve body body, and the other end communicates with the right end of the first cavity segment one.

8. The valve body of a wall-embedded angle valve according to claim 7, characterized in that, The second cavity includes a second cavity segment one and a second cavity segment two. The width of the second cavity segment one is greater than the width of the second cavity segment two. The upper end of the second cavity segment one extends through to the upper end face of the valve body. The lower end of the second cavity segment one communicates with the upper end of the second cavity segment two. The middle part of the second cavity segment two intersects with the third cavity segment one. The third cavity segment one divides the second cavity segment two into an upper and lower shaft cavity and the water passage hole. The shaft cavity is used to install the rotating shaft of the wall-mounted angle valve. The width of the shaft cavity is greater than the width of the water passage hole.

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