Integrally-formed ball valve
Through the extruded connection technology of integrated molded ball valves, the high production cost and complex process problems caused by the existing ball valve welding connection methods are solved, and the effects of simple operation, low cost production and high-quality sealing are achieved.
Patent Information
- Application Number
- CN202422155659.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The welding connection method of existing ball valves results in high production costs, complex processes and potential damage to the valve core and seals, and requires professional equipment and skills.
The integrated molded ball valve is adopted to closely combine the main valve body with the side valve body through extruded connection, and sealing is achieved using mechanical force and elastic deformation, simplifying the production process and reducing costs.
It realizes simple operation, low-cost production and high-quality sealing of the valve, avoids complexity and potential damage during welding, and improves production efficiency and product service life.
Smart Images
Figure CN222992204U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, and more specifically, it relates to an integrally formed ball valve. Background Art
[0002] A ball valve is a valve in which the closing member (ball) is driven by a valve stem and rotates around the axis of the ball valve. It can also be used for the regulation and control of fluids. Among them, the hard-sealed V-type ball valve has a strong shearing force between its V-type ball core and the metal valve seat surfacing with hard alloy, and is especially suitable for media containing fibers, tiny solid particles, etc.
[0003] In the transportation of some drinking water such as tap water, the valve is an extremely important fluid flow control tool. The ball valves of the prior art often adopt the welding connection method. By melting the material at the end of the valve body and solidifying it after cooling to form a uniform weld seam, multiple separated and unformed valve body segments are connected into a continuously formed valve body. However, in actual production, the initial investment in welding processing is relatively high. Welding equipment is required, and professional welders are needed for operation. The welding process is relatively complex, and strict control of welding parameters is required to ensure the quality and strength of the weld seam. Moreover, when the ball valve is produced, the valve core and support and seal components inside the main valve body need to be installed before the welding process. The welding process is relatively complex and may damage the valve core and seal inside the main valve body, increasing the production cost.
[0004] Therefore, in order to solve the above technical problems, this application proposes an integrally formed ball valve. Content of the Utility Model
[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an integrally formed ball valve.
[0006] To achieve the above purpose, the utility model provides the following technical solution: an integrally formed ball valve, including a main valve body, side valve bodies arranged on both sides of the main valve body, a sealing packing and a valve stem arranged on the upper end of the main valve body. The main valve body and the side valve bodies on both sides of the main valve body are connected by extrusion. A support is arranged inside the main valve body. The bottom end of the valve stem extends into the main valve body and is connected with a valve core. A seal is arranged between the support and the valve core. A plurality of engaging structures are arranged between the support and the side valve body, and the engaging structures are used for limiting before the side valve body and the main valve body are extruded and formed. A plurality of elastic structures are arranged between the support and the seal, and the elastic structures are used for providing elastic support for the seal.
[0007] Preferably, the end of the support is bow-shaped and consists of a support step and a support flange.
[0008] Preferably, the contact surface between the seal and the valve core is an arc surface, and air holes are arranged inside the seal.
[0009] Preferably, the engaging structure includes an insertion groove formed in the support flange of the support member, and a plurality of insertion blocks are fixedly installed inside the side valve body, and the insertion blocks correspond to the insertion grooves one by one in position.
[0010] Preferably, the insertion block is L-shaped, the horizontal end of the insertion block can be inserted into the insertion groove, and the vertical end of the insertion block extends upward to the outside of the support step.
[0011] Preferably, the elastic structure includes a telescopic groove formed inside the support step and adjacent to the side of the seal member. A telescopic spring is provided inside the telescopic groove. One end of the telescopic spring contacts the side of the seal member, and the other end is provided with a compression plate that can move inside the telescopic groove. A sliding rod is provided at the end of the compression plate away from the telescopic spring, and the end of the sliding rod extends to the outside of the support step and is fixedly installed with a blocking block.
[0012] Preferably, the side of the blocking block away from the support step corresponds to the vertical end of the insertion block one by one in position.
[0013] Compared with the prior art, the present utility model has the following beneficial effects:
[0014] 1. In the present utility model, the side valve bodies on both sides of the main valve body are pressed against the ends of the main valve body by mechanical force under the action of an extruder through two-end molds, so that the end of the valve body is closely fitted with another component, and the seal is achieved by relying on the elastic and plastic deformation of the pipe material. The operation is relatively simple, does not require special skills or complex equipment, and the cost is relatively low because no special connecting parts and equipment are required, and the maintenance is also relatively convenient. It is more convenient in the water supply and drainage of tap water and drinking water. The valve is integrally formed with a beautiful appearance and a relatively low production cost.
[0015] 2. In the present utility model, before the side valve body and the main valve body are extruded, the horizontal end of the insertion block on the side valve body is aligned with the insertion groove inside the support flange of the support member fixedly installed inside the main valve body. When the side valve body and the main valve body start to be extruded, the insertion block is directly inserted into the insertion groove, and the mold extrusion provides a pre-binding limit for the main valve body and the side valve body, so that they can be combined more closely, avoiding the situation of misalignment of the combination of the main valve body and the side valve body, and improving the production quality of the valve.
[0016] 3. In the present utility model, the vertical end of the insertion block contacts the blocking block in the elastic structure and simultaneously presses the blocking block. After being pressed, the blocking block drives the sliding rod to move towards the telescopic groove, and the moving sliding rod further pushes the compression plate, thereby causing the compression plate to compress the telescopic spring. The telescopic spring applies a lateral elastic force to the side of the seal, enabling the seal to always fit tightly against the valve core. After long-term use, the seal will not shrink due to material reasons, resulting in a decrease in the contact tightness with the valve core, improving the quality of use of this product and also enhancing the practicality of this device. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:
[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0019] Figure 2 is a cross-sectional view of the internal structure of the present utility model;
[0020] Figure 3 is Figure 2 an enlarged schematic view of part A in
[0021] Figure 4 is Figure 3 an enlarged schematic view of part B in
[0022] Figure 5 is Figure 4 another perspective of the enlarged schematic view of part B in
[0023] 1. Main valve body; 2. Side valve body; 3. Sealing packing; 4. Valve stem; 5. Support member; 501. Support step; 502. Support flange; 6. Seal; 7. Valve core; 8. Insertion groove; 9. Insertion block; 10. Telescopic groove; 11. Telescopic spring; 12. Compression plate; 13. Sliding rod; 14. Blocking block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] As Figures 1-5 shown, the present utility model provides an integrally formed ball valve, including a main valve body 1, side valve bodies 2 arranged on both sides of the main valve body 1, a sealing packing 3 arranged at the upper end of the main valve body 1, and a valve stem 4. The main valve body 1 and the side valve bodies 2 on both sides of the main valve body 1 are connected by extrusion;
[0025] It should be noted that when manufacturing this device, first install and combine the internal structure of the main valve body 1. Then, use mechanical force to tightly press the side valve bodies 2 on both sides of the main valve body 1 against the ends of the main valve body 1 through the dies at both ends under the action of an extruder, so that the end of the valve body is closely fitted with another component, and rely on the elastic and plastic deformation of the pipe material to achieve sealing. The operation is relatively simple, does not require special skills or complex equipment, and has a relatively low cost because no special connectors and equipment are needed, and maintenance is also relatively convenient. It is more convenient in the water supply and drainage of tap water and drinking water. The overall valve is integrally formed with a beautiful appearance and a relatively low production cost.
[0026] A support member 5 is provided inside the main valve body 1. The end of the support member 5 is bow-shaped and consists of a support step 501 and a support flange 502. The bottom end of the valve stem 4 extends into the main valve body 1 and is connected to a valve core 7. A seal 6 is provided between the support member 5 and the valve core 7. The contact surface between the seal 6 and the valve core 7 is an arc surface, and air holes are provided inside the seal 6.
[0027] It should be noted that the arc-shaped contact surface between the seal 6 and the valve core 7 facilitates the rotation of the valve core 7, and ensures that the seal 6 fits the valve core 7 during rotation, preventing fluid leakage. Air holes are provided inside the seal 6, which can reserve some compression space for the seal 6 during installation and improve the service life of the seal 6.
[0028] A number of engaging structures are provided between the support member 5 and the side valve body 2. The engaging structures are used for limiting before the side valve body 2 and the main valve body 1 are extrusion-molded. The engaging structures include insertion grooves 8 opened in the support flange 502 of the support member 5. A number of insertion blocks 9 are fixedly installed inside the side valve body 2. The positions of the insertion blocks 9 correspond to those of the insertion grooves 8 one by one. The insertion blocks 9 are L-shaped. The horizontal end of the insertion block 9 can be inserted into the insertion groove 8, and the vertical end of the insertion block 9 extends upward to the outside of the support step 501.
[0029] Before the side valve body 2 and the main valve body 1 are extruded, align the horizontal end of the insertion block 9 on the side valve body 2 with the insertion groove 8 inside the support flange 502 of the support member 5 fixed inside the main valve body 1. When the side valve body 2 and the main valve body 1 start to be extruded, the insertion block 9 is directly inserted into the insertion groove 8. The die extrusion provides pre-combined limitation for the main valve body 1 and the side valve body 2, enabling them to be combined more closely and avoiding the situation of misalignment in the combination of the main valve body 1 and the side valve body 2, thus improving the production quality of the valve.
[0030] There are several elastic structures between the support member 5 and the seal member 6. The elastic structures are used to provide elastic support for the seal member 6. The elastic structure includes a telescopic groove 10 opened adjacent to the side of the seal member 6 on the inner side of the support step 501. A telescopic spring 11 is provided inside the telescopic groove 10. One end of the telescopic spring 11 contacts the side of the seal member 6, and a compression plate 12 that can move inside the telescopic groove 10 is provided at the other end. A sliding rod 13 is provided at the end of the compression plate 12 away from the telescopic spring 11. The end of the sliding rod 13 extends to the outside of the support step 501 and is fixedly installed with a blocking block 14. The side of the blocking block 14 away from the support step 501 corresponds to the vertical end of the insertion block 9 one by one.
[0031] When the main valve body 1 and the side valve body 2 are squeezed, the vertical end of the insertion block 9 will contact the blocking block 14 in the elastic structure and synchronously squeeze the blocking block 14. After being squeezed, the blocking block 14 will drive the sliding rod 13 to move towards the telescopic groove 10. The moving sliding rod 13 will further push the compression plate 12, so that the compression plate 12 compresses the telescopic spring 11. The telescopic spring 11 exerts a lateral elastic force on the side of the seal member 6, so that the seal member 6 always fits the valve core 7. After long-term use, the seal member 6 will not shrink due to material reasons, resulting in a decrease in the contact tightness with the valve core 7, improving the use quality of the product and also improving the practicability of the device.
[0032] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention in any form; any person skilled in the art of this industry can smoothly implement the present invention according to the illustrations in the specification and the above description; however, any equivalent changes made by those skilled in this professional field within the scope of the technical solution of the present invention by using the technical content disclosed above, such as some modifications, decorations and evolutions, are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essence of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims
1. An integrally formed ball valve, comprising a main valve body (1), side valve bodies (2) arranged on both sides of the main valve body (1), a sealing packing (3) arranged at the upper end of the main valve body (1), and a valve stem (4), characterized in that: The main valve body (1) and the side valve bodies (2) on both sides of the main valve body (1) are connected by extrusion. A support member (5) is provided inside the main valve body (1). The bottom end of the valve stem (4) extends into the inside of the main valve body (1) and is connected to a valve core (7). A sealing member (6) is provided between the support member (5) and the valve core (7). A plurality of engaging structures are provided between the support member (5) and the side valve body (2). The engaging structures are used to limit the position of the side valve body (2) and the main valve body (1) before extrusion molding. A plurality of elastic structures are provided between the support member (5) and the sealing member (6). The elastic structures are used to provide elastic support for the sealing member (6).
2. The one-piece ball valve according to claim 1, characterized in that: The end of the support member (5) is arched and consists of a support step (501) and a support flange (502).
3. The one-piece ball valve according to claim 1, characterized in that: The contact surface between the sealing member (6) and the valve core (7) is an arc surface, and an air hole is provided inside the sealing member (6).
4. The one-piece ball valve according to claim 2, characterized in that: The engaging structure comprises an insertion groove (8) provided on the supporting flange (502) of the supporting member (5), and a plurality of insertion blocks (9) are fixedly installed inside the side valve body (2), and the positions of the insertion blocks (9) and the insertion grooves (8) correspond one to one.
5. The one-piece ball valve according to claim 4, characterized in that: The insertion block (9) is L-shaped, the lateral end of the insertion block (9) can be inserted into the insertion groove (8), and the vertical end of the insertion block (9) extends upward to the outside of the support step (501).
6. The one-piece ball valve according to claim 2, characterized in that: The elastic structure comprises a telescopic groove (10) provided on the inner side of the support step (501) and adjacent to the side of the sealing member (6); a telescopic spring (11) is provided inside the telescopic groove (10); one end of the telescopic spring (11) contacts the side of the sealing member (6); the other end is provided with a compression plate (12) movable inside the telescopic groove (10); a sliding rod (13) is provided at one end of the compression plate (12) away from the telescopic spring (11); the end of the sliding rod (13) extends to the outer side of the support step (501) and is fixedly provided with a blocking block (14).
7. The one-piece ball valve according to claim 6, characterized in that: The side of the blocking block (14) away from the supporting step (501) corresponds one-to-one to the vertical end position of the insertion block (9).