Valve element structure with long service life

Abstract

The utility model discloses a long-service-life valve element structure, and belongs to the technical field of valves. The valve element structure comprises a valve body and a valve element, the valve element is arranged in the valve body, the valve element comprises a movable body and two limiting bodies, the movable body is clamped between the two limiting bodies, the movable body and the two limiting bodies are each provided with a water passing opening, a positioning shaft core is arranged at the circle center of the movable body in a penetrating mode, and the movable body is rotationally connected with the positioning shaft core; the two limiting bodies are arranged on the valve body, the two ends of the positioning shaft core penetrate through the two limiting bodies respectively, the movable body is movably connected with the valve body, the valve body is provided with a limiting mechanism used for limiting rotation of the limiting bodies, and the valve body is provided with a driving mechanism. The movable body can only rotate around the positioning shaft core under the action of the driving mechanism and cannot slide in a staggered mode with the limiting body, so that abrasion of the movable body is reduced, and the service life of the valve element is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a long-life valve core structure. Background Art

[0002] The valve core is an important part of the valve. It is the core component that controls the flow or direction of the fluid. There is a valve core on the market that is composed of two ceramic plates. Both ceramic plates are provided with water ports. A lever connected to the valve body drives one of the ceramic plates to move so that the water ports are connected or staggered to achieve the flow of water. However, since there is no other limit between the two ceramic plates, when the lever drives one of the ceramic plates to move, the two ceramic plates will slide dislocated, which will cause the ceramic plates to easily wear and affect the life of the valve core. Therefore, a new valve core mechanism is needed to solve this problem. Utility Model Content

[0003] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures specifically pointed out in the description and other drawings of the description.

[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a valve core structure with a long service life.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: a long-life valve core structure, including a valve body and a valve core, the valve core is arranged inside the valve body, the valve core includes a movable body and two limiting bodies, the movable body is clamped between the two limiting bodies, the movable body and the two limiting bodies are both provided with water outlets, a positioning shaft core is penetrated at the center of the movable body, the movable body is rotatably connected to the positioning shaft core, the two ends of the positioning shaft core respectively penetrate the two limiting bodies, the movable body is movably connected to the valve body, the valve body is provided with a limiting mechanism for limiting the rotation of the limiting body, and the valve body is provided with a driving mechanism for driving the movable body to rotate around the positioning shaft core.

[0006] By adopting the above technical scheme, water holes are provided on the movable body and the limiting body. When the valve core is in the water-passing state, all the water holes are aligned with each other, so that water can flow through the valve core. The movable body can be driven to rotate by the driving mechanism so that the water holes are staggered with each other, so that the valve core is changed to a closed state, thereby realizing the function of the valve. The movable body and the two limiting bodies are connected in series through the positioning shaft core. The edges of the two limiting bodies rely on the inner wall of the valve body and cannot rotate under the action of the limiting mechanism. Therefore, the positioning shaft core can limit the movement of the movable body, so that the movable body can only rotate around the positioning shaft core under the action of the driving mechanism, and will not slide dislocated with the limiting body, thereby reducing the wear of the movable body and increasing the life of the valve core. The valve core structure can be applied to the valve core structure of gate valves, through valves, stop valves or faucets.

[0007] Preferably, the limiting mechanism comprises a convex block, the convex block is fixedly connected to the edge of the limiting body, the valve body is provided with a limiting groove, and the convex block is embedded in the limiting groove. The utility model achieves the effect of limiting the rotation of the limiting body by inserting the convex block fixed on the limiting body into the limiting groove of the valve body.

[0008] Preferably, the driving mechanism includes a lever, the movable body is provided with a slot for the lever to be inserted, the valve body is provided with a movable groove for the lever to move, and the lever is connected to the valve body via a connecting piece 1. The lever of the utility model is connected to the valve body via a connecting piece 1, so that it can rotate around the valve body without falling off the valve body. By inserting one end of the lever into the slot on the movable body, the lever can drive the movable body to rotate when it moves around the valve body, thereby realizing the control of the switch state of the valve core.

[0009] Preferably, the first connecting member is a rotating tube, the rotating tube is sleeved on the outside of the valve body, the rotating tube is rotatably connected to the valve body, and the lever is fixed to the rotating tube through a fixing structure. The utility model utilizes the rotating tube sleeved on the outside of the valve body, so that the lever connected to the rotating tube through the fixing structure can move around the valve body.

[0010] Preferably, the fixing structure comprises a threaded portion arranged on the lever and a threaded hole opened on the rotating tube, and the threaded portion is connected to the threaded hole. The utility model utilizes the threaded connection between the threaded portion and the threaded hole to achieve a fixed connection between the rotating tube and the lever.

[0011] Preferably, a convex ring is provided inside the valve body, and one of the limiters abuts against the convex ring. The utility model can position the limiter on one side by using the convex ring, so that the entire valve core is positioned in one axial direction, thereby ensuring that the slot on the movable body can be accurately aligned with the movable groove on the valve body during assembly.

[0012] Preferably, a second connecting member is provided at one end of the valve body away from the convex ring. The second connecting member is threadedly connected to the valve body and abuts against one of the limiting bodies. The present utility model uses the second connecting member to abut against the limiting body on the other side, thereby fixing the position of the entire valve core. At the same time, the second connecting member also serves to connect one end of the valve body to the pipeline.

[0013] Preferably, a screwing portion is fixedly connected to one end of the valve body away from the second connecting member. The present utility model uses the screwing portion to be able to connect the other end of the valve body to the pipeline.

[0014] Preferably, a sealing ring is provided between the rotating pipe and the valve body. The present utility model uses the sealing ring to be able to seal the gap between the rotating pipe and the valve body, preventing water from flowing out of the movable groove.

[0015] In summary, the beneficial effects of the present utility model are as follows:

[0016] 1. Water passing ports are provided on both the movable body and the limiting body. When the valve core is in the water passing state, all the water passing ports are aligned with each other, so that water flow can pass through the valve core. By the driving mechanism, the movable body can be driven to rotate, so that the water passing ports are staggered from each other, thereby changing the valve core to the closed state, thereby realizing the function of the valve.

[0017] 2. The positioning shaft core can play a role in limiting the movement of the movable body, so that the movable body can only rotate around the positioning shaft core under the action of the driving mechanism, and will not be misaligned and slide with the limiting body, thereby reducing the wear of the movable body and increasing the service life of the valve core. This valve core structure can be applied to gate valves, straight-through valves, globe valves or faucets, etc.

[0018] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure.

[0019] Undoubtedly, such objects of the present utility model and other objects will become more apparent after the details of the preferred embodiments described in multiple drawings and illustrations below.

[0020] To make the above and other objects, features and advantages of the present utility model more obvious and understandable, one or several preferred embodiments are specifically given below, and in conjunction with the accompanying drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model.

[0022] In the accompanying drawings, like parts are designated by like reference numerals, and the drawings are schematic and are not necessarily drawn to scale.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only one or several embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on such accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure;

[0025] Figure 2 It is a schematic diagram of the structure after removing the rotating pipe and the second connecting piece;

[0026] Figure 3 It is a schematic diagram of the overall sectional structure.

[0027] Main reference numeral description: 1, valve body; 2, valve core; 3, movable body; 4, limiting body; 5, water passage port; 6, positioning shaft core; 7, convex block; 8, lever; 9, rotating pipe; 10, threaded part; 11, convex ring; 12, second connecting piece; 13, screwing part; 14, sealing ring; 15, movable groove. Specific embodiments

[0028] In order to make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the following further details the present invention in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0029] In addition, in the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0030] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components. However, indicating a direct connection means that there is no connection relationship constructed through a transition structure between the two connected bodies, and they are only connected through the connection structure to form an integral body. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0032] As Figures 1-3 shown, a long - life valve core structure includes a valve body 1 and a valve core 2. The valve core 2 is arranged inside the valve body 1. The valve core 2 includes a movable body 3 and two limiting bodies 4. The movable body 3 is clamped between the two limiting bodies 4. Water - passing ports 5 are provided on both the movable body 3 and the two limiting bodies 4. A positioning shaft core 6 is penetrated through the center of the movable body 3. The movable body 3 is rotationally connected to the positioning shaft core 6. Both ends of the positioning shaft core 6 penetrate through the two limiting bodies 4 respectively. The movable body 3 is movably connected to the valve body 1. The valve body 1 is provided with a limiting mechanism for restricting the rotation of the limiting body 4, and the valve body 1 is provided with a driving mechanism for driving the movable body 3 to rotate around the positioning shaft core 6.

[0033] By adopting the above technical solution, water inlets 5 are provided on both the movable body 3 and the limiting body 4. When the valve core 2 is in the water-passing state, all the water inlets 5 are aligned with each other, so that water can pass through the valve core 2. The driving mechanism can drive the movable body 3 to rotate, causing the water inlets 5 to be staggered from each other, so that the valve core 2 becomes in the closed state, thereby realizing the function of the valve. The movable body 3 and the two limiting bodies 4 are strung together by a positioning shaft core 6. The edges of the two limiting bodies 4 lean against the inner wall of the valve body 1 and cannot rotate under the action of the limiting mechanism. Therefore, the positioning shaft core 6 can limit the movement of the movable body 3, so that the movable body 3 can only rotate around the positioning shaft core 6 under the action of the driving mechanism and will not have misalignment sliding with the limiting body 4, thereby reducing the wear of the movable body 3 and increasing the service life of the valve core 2. This valve core 2 structure can be applied to the valve core structures of gate valves, straight-through valves, globe valves or faucets.

[0034] The limiting mechanism includes a convex block 7. The convex block 7 is fixedly connected to the edge of the limiting body 4. The valve body 1 is provided with a limiting groove, and the convex block 7 is embedded in the limiting groove. By clamping the convex block 7 fixed on the limiting body 4 into the limiting groove of the valve body 1, the rotation of the limiting body 4 is restricted.

[0035] The driving mechanism includes a lever 8. The movable body 3 is provided with a slot for the lever 8 to be inserted into. The valve body 1 is provided with a movable groove 15 for the lever 8 to move in. The lever 8 is connected to the valve body 1 through a first connecting piece. The lever 8 is connected to the valve body 1 through a first connecting piece, so that it can rotate around the valve body 1 without falling off the valve body 1. By inserting one end of the lever 8 into the slot on the movable body 3, the lever 8 can drive the movable body 3 to rotate when moving around the valve body 1, realizing the control of the on-off state of the valve core 2.

[0036] The first connecting piece is a rotating tube 9. The rotating tube 9 is sleeved outside the valve body 1 and is rotatably connected to the valve body 1. The lever 8 is fixed on the rotating tube 9 through a fixing structure. By using the rotating tube 9 sleeved outside the valve body 1, the lever 8 connected to the rotating tube 9 through the fixing structure can move around the valve body 1.

[0037] The fixing structure includes a threaded portion 10 provided on the lever 8 and a threaded hole provided on the rotating tube 9. The threaded portion 10 is connected to the threaded hole. By using the threaded connection between the threaded portion 10 and the threaded hole, the fixed connection between the rotating tube 9 and the lever 8 is realized.

[0038] A convex ring 11 is provided inside the valve body 1. One of the limiting bodies 4 abuts against the convex ring 11. By using the convex ring 11, one of the limiting bodies 4 can be positioned, so that the entire valve core 2 is positioned in one axial direction, thereby ensuring that the slot on the movable body 3 can be accurately aligned with the movable groove 15 on the valve body 1 during assembly.

[0039] One end of the valve body 1 away from the convex ring 11 is provided with a second connecting piece 12. The second connecting piece 12 is threadedly connected to the valve body 1, and the second connecting piece 12 abuts against one of the limiting bodies 4. The second connecting piece 12 is used to abut against the limiting body 4 on the other side, so as to fix the position of the entire valve core 2. At the same time, the second connecting piece 12 also serves to connect one end of the valve body 1 to the pipeline.

[0040] One end of the valve body 1 away from the second connecting piece 12 is fixedly connected with a screwing part 13. The screwing part 13 can be used to connect the other end of the valve body 1 to the pipeline.

[0041] A sealing ring 14 is arranged between the rotating pipe 9 and the valve body 1. The sealing ring 14 can seal the gap between the rotating pipe 9 and the valve body 1 to prevent water from flowing out of the movable groove 15.

[0042] It should be noted that many specific details have been described above to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

Claims

1. A long-life valve core structure, comprising a valve body (1) and a valve core (2), wherein the valve core (2) is arranged inside the valve body (1), and is characterized in that: The valve core (2) comprises a movable body (3) and two limiting bodies (4); the movable body (3) is clamped between the two limiting bodies (4); the movable body (3) and the two limiting bodies (4) are both provided with water outlets (5); a positioning shaft core (6) is provided at the center of the movable body (3); the movable body (3) is rotatably connected to the positioning shaft core (6); the two ends of the positioning shaft core (6) respectively pass through the two limiting bodies (4); the movable body (3) is movably connected to the valve body (1); the valve body (1) is provided with a limiting mechanism for limiting the rotation of the limiting body (4); and the valve body (1) is provided with a driving mechanism for driving the movable body (3) to rotate around the positioning shaft core (6); The limiting mechanism comprises a protrusion (7), the protrusion (7) is fixedly connected to the edge of the limiting body (4), the valve body (1) is provided with a limiting groove, and the protrusion (7) is embedded in the limiting groove.

2. The long-life valve core structure according to claim 1, characterized in that: The driving mechanism comprises a shifting rod (8), the movable body (3) is provided with a slot for the shifting rod (8) to be inserted, the valve body (1) is provided with a movable groove (15) for the shifting rod (8) to move, and the shifting rod (8) is connected to the valve body (1) via a connecting piece.

3. The long-life valve core structure according to claim 2, characterized in that: The first connecting member is a rotating tube (9), the rotating tube (9) is sleeved on the outside of the valve body (1), and the rotating tube (9) is rotatably connected to the valve body (1), and the shifting rod (8) is fixed to the rotating tube (9) via a fixing structure.

4. The long-life valve core structure according to claim 3, characterized in that: The fixing structure comprises a threaded portion (10) arranged on the shifting rod (8) and a threaded hole opened on the rotating tube (9), and the threaded portion (10) is connected to the threaded hole.

5. The long-life valve core structure according to claim 1, characterized in that: A convex ring (11) is arranged on the inner side of the valve body (1), and one of the limiting bodies (4) abuts against the convex ring (11).

6. The long-life valve core structure according to claim 5, characterized in that: A second connecting member (12) is provided at one end of the valve body (1) away from the convex ring (11); the second connecting member (12) is threadedly connected to the valve body (1); and the second connecting member (12) abuts against one of the limiting bodies (4).

7. The long-life valve core structure according to claim 6, characterized in that: One end of the valve body (1) away from the second connecting piece (12) is fixedly connected with a threaded portion (13).

8. The long-life valve core structure according to claim 3, characterized in that: A sealing ring (14) is provided between the rotating tube (9) and the valve body (1).

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