High-pressure-bearing iron sheet buckle type plastic ball valve
By using a snap-fit iron sheet structure and a double sealing ring design, the problem of valve core displacement and leakage under high pressure in plastic ball valves is solved, achieving high pressure resistance and sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LONSID HEALTHY DRINKING WATER EQUIP
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-08
AI Technical Summary
Existing plastic ball valves have poor pressure resistance under repeated water hammer or instantaneous high pressure, which can lead to valve core displacement or detachment, resulting in liquid leakage.
It adopts a metal snap-fit structure, which initially fixes the valve core through annular grooves and chamfered protrusions, and uses the metal snap-fit to share the axial force, combined with double sealing rings to prevent leakage.
This improves the pressure-bearing capacity of the plastic ball valve, prevents axial displacement of the valve core, achieves effective liquid sealing, and avoids leakage.
Smart Images

Figure CN224214744U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve technology, and in particular to a high-pressure-bearing iron plate snap-fit plastic ball valve. Background Technology
[0002] Ball valves are widely used in various pipeline systems due to their unique advantages. They undertake key tasks such as shutting off, distributing, regulating flow, and changing the direction of medium flow. Their working principle mainly relies on rotating the valve stem to drive the valve ball to achieve the opening or closing of the valve.
[0003] Due to cost considerations, more and more connectors on the market are made of plastic, which has poor pressure resistance. After repeated water hammer or instantaneous high pressure, the valve core may shift or come off, resulting in liquid leakage. In view of the above reasons, this application proposes a high-pressure-resistant iron plate snap-fit plastic ball valve. Utility Model Content
[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a high-pressure-bearing iron sheet snap-fit plastic ball valve.
[0005] The technical solution of this utility model is as follows: A high-pressure-bearing iron plate snap-fit plastic ball valve includes a valve body, the valve body having an installation cavity for installation, the inner wall of the installation cavity having an annular groove for clamping, the installation cavity having a slot, the slot having an iron snap for reinforcement, the installation cavity having a valve core for controlling water flow, and the outer wall of the valve core having an annular groove for accommodating the iron snap.
[0006] Optionally, the valve core has a chamfered protrusion on its exterior, which is adapted to the annular groove.
[0007] Optionally, the valve core is provided with a first mounting groove and two second mounting grooves on its exterior, and a first sealing ring and a second sealing ring are respectively provided in the first mounting groove and the two second mounting grooves.
[0008] Optionally, the valve body has a handle at the top, a limiting ring is fixedly provided at the bottom of the handle, the limiting ring has a limiting groove, the inner wall of the limiting ring has an inner conical surface, and the valve body has a protrusion at the top, the protrusion and the inner conical surface being adapted to each other.
[0009] Optionally, the bottom of the handle is fixedly provided with a plug rod, and the top of the valve core is provided with a plug hole that matches the plug rod.
[0010] Optionally, a limiting block is provided on the top outer wall of the valve body, and the height of the limiting block is the same as the height of the limiting groove.
[0011] Optionally, both the insertion rod and the insertion hole are semi-circular.
[0012] Compared with the prior art, the present invention has the following beneficial technical effects:
[0013] 1. This utility model can achieve initial fixation of the valve ball by setting an annular groove and a chamfered protrusion. The iron buckle can share the axial force borne by the inverted structure, preventing the valve core from axial displacement or even ejection due to fluid impact or vibration, thus achieving the purpose of reinforcement.
[0014] 2. This utility model, through the setting of the first sealing ring and the second sealing ring, can achieve a double sealing effect, which can effectively prevent liquid leakage. Attached Figure Description
[0015] Figure 1 A first-view perspective three-dimensional structural diagram of the present invention is provided;
[0016] Figure 2 A second-view three-dimensional structural diagram of the present invention is provided;
[0017] Figure 3 A cross-sectional view of this utility model is provided;
[0018] Figure 4 A three-dimensional structural diagram of the valve core and sealing ring in this utility model is provided;
[0019] Figure 5 A three-dimensional structural schematic diagram of the valve core in this utility model is provided;
[0020] Figure 6 A schematic diagram of the orthographic section of the valve body in this utility model is provided;
[0021] Figure 7 A three-dimensional structural diagram of the handle in this utility model is provided;
[0022] Figure 8 A three-dimensional structural diagram of the iron buckle in this utility model is provided.
[0023] Figure label:
[0024] 1. Valve body;
[0025] 2. Installation cavity;
[0026] 3. Annular groove one;
[0027] 4. Card slot;
[0028] 5. Valve core;
[0029] 6. Chamfered protrusion;
[0030] 7. Installation slot one;
[0031] 8. Install slot two;
[0032] 9. First sealing ring;
[0033] 10. Second sealing ring;
[0034] 11. Socket;
[0035] 12. Iron buckle;
[0036] 13. Handle;
[0037] 14. Insert rod;
[0038] 15. Limit block;
[0039] 16. Annular groove two. Detailed Implementation
[0040] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.
[0041] The components of the embodiments of this disclosure, which are typically described and shown in the accompanying drawings, can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of embodiments of this disclosure provided in the drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure.
[0042] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.
[0043] In the description of this disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0044] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0045] Example
[0046] like Figure 1-8 As shown, this utility model proposes a high-pressure-bearing iron-plate snap-fit plastic ball valve, including a valve body 1. The valve body 1 has an installation cavity 2 for installation, and the inner wall of the installation cavity 2 has an annular groove 3 for clamping. The installation cavity 2 also has a slot 4, and the slot 4 contains an iron snap-fit 12 for reinforcement. The iron snap-fit 12 can share the axial force borne by the snap-fit structure, preventing the valve core 5 from axial displacement or even ejection due to fluid impact or vibration, thus achieving the purpose of reinforcement. The installation cavity 2 contains a valve core 5 for controlling water flow. The valve core 5 has a chamfered protrusion 6 on its outer surface, which matches the annular groove 3. The chamfered protrusion 6 and the annular groove 3 can achieve initial fixation of the valve core 5. The outer wall of the valve core 5 has a commissure for accommodating iron... The valve body 1 has an annular groove 16 in the buckle 12. The top of the valve body 1 is provided with a handle 13. The bottom of the handle 13 is fixedly provided with a plug rod 14. The top of the valve core 5 is provided with a plug hole 11 that matches the plug rod 14. Both the plug rod 14 and the plug hole 11 are semi-circular. The setting of the plug rod 14 and the plug hole 11 can avoid installation errors. The bottom of the handle 13 is fixedly provided with a limiting ring. The limiting ring is provided with a limiting groove. The top outer wall of the valve body 1 is provided with a limiting block 15. The height of the limiting block 15 is the same as the height of the limiting groove. The setting of the limiting block 15 and the limiting groove can limit the rotation angle of the handle 13. The inner wall of the limiting ring is provided with an inner conical surface. The top of the valve body 1 is provided with a protrusion. The protrusion and the inner conical surface are adapted to each other. The setting of the protrusion and the inner conical surface can realize the quick assembly and disassembly of the handle 13.
[0047] The valve core 5 is provided with a first mounting groove 7 and two second mounting grooves 8 on its outside. A first sealing ring 9 and a second sealing ring 10 are respectively provided in the first mounting groove 7 and the two second mounting grooves 8. The first sealing ring 9 and the second sealing ring 10 can achieve a double sealing effect, which can effectively prevent liquid leakage.
[0048] In this embodiment, the chamfered protrusion 6 is inserted into the annular groove 3, and the initial fixation is achieved by the buckle. The iron buckle 12 is inserted into the slot 4 and pressed into the annular groove 16, which can share the axial force borne by the buckle structure and prevent the valve core 5 from axial displacement or even ejection due to fluid impact or vibration, thus achieving the purpose of reinforcement. The first sealing ring 9 and the second sealing ring 10 fit against the inner wall of the mounting cavity 2. The first sealing ring 9 and the second sealing ring 10 can serve as a double seal, effectively preventing leakage. During the operation of the handle 13 to control the opening and closing of the valve, various forces will be generated. The buckle structure can withstand these forces, ensuring that the handle 13 will not easily fall off or loosen from the valve body 1, thus ensuring the stability and accuracy of valve operation. When installing the handle 13, the insertion rod 14 is inserted into the insertion hole 11 and gently pressed in to fix it, which improves the installation efficiency of the handle 13.
[0049] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A high-pressure-bearing iron plate snap-fit plastic ball valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with an installation cavity (2) for installation. The inner wall of the installation cavity (2) is provided with an annular groove (3) for clamping. The installation cavity (2) is provided with a slot (4). The slot (4) is provided with an iron buckle (12) for reinforcement. The mounting cavity (2) is provided with a valve core (5) for controlling water flow, and the outer wall of the valve core (5) is provided with an annular groove (16) for accommodating the iron buckle (12). The valve core (5) is provided with a first mounting groove (7) and two second mounting grooves (8) on the outside. The first mounting groove (7) and the two second mounting grooves (8) are respectively provided with a first sealing ring (9) and a second sealing ring (10).
2. The high-pressure-bearing iron plate snap-fit plastic ball valve according to claim 1, characterized in that, The valve core (5) has a chamfered protrusion (6) on its outside, and the chamfered protrusion (6) is adapted to the annular groove (3).
3. The high-pressure-bearing iron plate snap-fit plastic ball valve according to claim 1, characterized in that, The valve body (1) has a handle (13) at the top, and a limiting ring is fixedly provided at the bottom of the handle (13), with a limiting groove on the limiting ring.
4. A high-pressure-bearing iron plate snap-fit plastic ball valve according to claim 3, characterized in that, The inner wall of the limiting ring is provided with an inner conical surface, and the top of the valve body (1) is provided with a protrusion, which is adapted to the inner conical surface.
5. A high-pressure-bearing iron plate snap-fit plastic ball valve according to claim 4, characterized in that, The bottom of the handle (13) is fixedly provided with a plug rod (14), and the top of the valve core (5) is provided with a plug hole (11) that matches the plug rod (14).
6. A high-pressure-bearing iron plate snap-fit plastic ball valve according to claim 4, characterized in that, The valve body (1) has a limiting block (15) on its top outer wall, and the height of the limiting block (15) is the same as the height of the limiting groove.
7. A high-pressure-bearing iron plate snap-fit plastic ball valve according to claim 5, characterized in that, Both the insertion rod (14) and the insertion hole (11) are semi-circular.