A compact valve core

Abstract

The utility model discloses a compact valve core, specifically relates to valve core technical field, including valve core main part, the valve core main part is equipped with the flow guide component for realizing fluid direction and conveying control on configuration, the flow guide component contains the center partition that is fixed in the valve core main part outside wall. The utility model discloses through the automatic drive combination of temperature bag and spring, need not rely on electric actuator or manual operation structure: temperature bag can be with temperature change spontaneous heat expansion cold contraction, directly drive the axial movement of the plugging disc, and the reset elastic force of cooperation spring can complete the plugging and open switching of first liquid outlet, and further realize fluid conveying path adjustment. The whole process does not need additional external drive parts, fundamentally reduces the component purchase and assembly cost of valve, and remarkably reduces production and application threshold.

Description

Technical Field

[0001] This utility model relates to the field of valve core technology, and more specifically, to a compact valve core. Background Technology

[0002] A valve is a mechanical device that controls the flow of fluids (liquids, gases, steam, etc.) in pipelines or equipment. Essentially, it achieves core functions such as "opening / closing," "flow regulation," "pressure control," and "direction switching" by changing the opening or closing of internal channels or cross-sectional area.

[0003] A valve's structure typically includes components such as the valve body, valve core, valve stem, seals, and drive devices (e.g., handles, motors, cylinders). However, the valve core is the only core component that directly contacts the fluid and achieves its "control function" through its own movement. All external operations (such as turning handles or pressing buttons) are ultimately achieved through the movement of the valve core, making it the "heart of the valve." Currently, when adjusting the conveying direction of valves, electric actuators are usually installed on the valve or the valve core is manually rotated. This not only increases the cost of the valve but also makes the valve occupy a large area. Therefore, a compact valve core is needed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a compact valve core, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a compact valve core, including a valve core body, wherein a flow guiding component for realizing fluid guidance and delivery control is disposed on the valve core body; the flow guiding component includes a central partition fixed to the outer side wall of the valve core body, wherein a plurality of liquid inlets for fluid entry are evenly distributed along the circumferential direction at the top of the central partition, and a plurality of first liquid outlets for initial fluid output are correspondingly distributed along the circumferential direction at the bottom of the central partition;

[0006] A push rod is fixedly installed at the bottom of the inner cavity of the valve core body. A temperature bulb that can expand and contract with temperature changes to drive the component to move is sleeved on the outside of the push rod. A sealing disc for sealing the first liquid outlet is movably sleeved on the outside of the temperature bulb. A sealing cylinder for auxiliary sealing and guidance is integrally formed at the bottom of the sealing disc.

[0007] Optionally, in one possible implementation, the top of the sealing disc can extend axially along the valve core body to the middle region of the valve core body, and in the extended state, it can completely cover and seal the first outlet. A spring is sleeved on the outer side of the temperature bulb to provide a restoring force to the sealing disc. One end of the spring abuts against the bottom end face of the sealing disc, and the other end abuts against the bottom end face of the inner cavity of the valve core body, thereby achieving elastic support of the sealing disc by the spring. Several circumferential openings are provided on the bottom surface of the valve core body for final fluid output. The second liquid outlet is connected to the inner cavity of the valve core body to form another channel for fluid output. The first liquid outlet and the second liquid outlet are both opened radially through the side wall surface of the valve core body. The first liquid outlet and the second liquid outlet are both arranged in a circumferential array along the axial direction of the valve core body, and the included angle between two adjacent first liquid outlets is equal to the included angle between two adjacent liquid inlets. The sealing disc is connected to the inner side wall of the valve core body by a sliding fit to ensure the smooth movement of the sealing disc along the axial direction.

[0008] The technical effects and advantages of this utility model are as follows:

[0009] The automatic drive combination of a temperature-controlled bulb and a spring eliminates the need for electric actuators or manual operation. The temperature-controlled bulb expands and contracts automatically with temperature changes, directly driving the axial movement of the sealing disc. Combined with the spring's restoring force, this completes the switching between sealing and opening the first outlet, thereby adjusting the fluid delivery path. The entire process requires no additional external drive components, fundamentally reducing valve component procurement and assembly costs, and significantly lowering the barriers to production and application.

[0010] The central baffle is directly fixed to the outer wall of the valve core body, with the inlet and first outlet correspondingly distributed along its circumference, eliminating the need for additional radial expansion. The push rod, temperature sensor, spring, sealing disc, and sealing cylinder are all nested within the valve core body's inner cavity, arranged compactly along the axial direction, without any external protruding components. The second outlet directly penetrates the bottom sidewall of the valve core body, communicating with the inner cavity without requiring additional connecting pipelines. This concealed integrated design makes the overall valve core structure extremely compact, thereby significantly reducing the overall size and footprint of the valve, allowing for flexible adaptation to space-constrained applications. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0012] Figure 1 This is a front view of the overall structure of this utility model.

[0013] Figure 2 This is a side view of the overall structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the valve core body, sealing cylinder, spring, and temperature bulb of this utility model.

[0015] Figure 4 This is a cross-sectional view of the overall structure of this utility model.

[0016] The attached diagram is labeled as follows: 1. Valve core body; 2. Liquid inlet; 3. First liquid outlet; 4. Central baffle; 5. Push rod; 6. Temperature bulb; 7. Spring; 8. Sealing disc; 9. Sealing cylinder; 10. Second liquid outlet. Detailed Implementation

[0017] 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.

[0018] This embodiment discloses a compact valve core, which aims to solve the problem that in the prior art, when the valve is used to adjust the delivery direction, it is necessary to install an electric actuator or manually rotate the valve core, which leads to increased valve cost and a large footprint.

[0019] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the compact valve core includes a valve core body 1, which has an overall cylindrical structure, providing a mounting base and support for other components of the valve core. A flow guiding assembly is configured on the valve core body 1 for fluid guidance and delivery control; this flow guiding assembly is a key component for achieving proper fluid flow and control.

[0020] The flow guiding assembly includes a central partition 4 fixed to the outer wall of the valve core body 1. The central partition 4 is connected to the outer wall of the valve core body 1 by welding, ensuring a firm connection and good sealing, effectively separating different areas on the outer side of the valve core body 1. Several inlet ports 2 for fluid entry are evenly distributed along the circumferential direction at the top of the central partition 4. Simultaneously, several first outlet ports 3 for initial fluid output are correspondingly distributed along the circumferential direction at the bottom of the central partition 4, their positions corresponding one-to-one with the inlet ports 2, facilitating orderly initial fluid transport within the valve core.

[0021] A push rod 5, a cylindrical metal rod, is bolted to the bottom of the inner cavity of the valve core body 1. A temperature bulb 6, capable of thermal expansion and contraction to drive the component's movement, is fitted around the outside of the push rod 5. The temperature bulb 6 is filled with ether, which has a high coefficient of thermal expansion and contraction, making it highly sensitive to temperature changes. When the external temperature changes, the temperature bulb 6 rapidly undergoes a volume change. Furthermore, a sealing disc 8 for sealing the first liquid outlet 3 is movably fitted around the outside of the temperature bulb 6. The bottom of the sealing disc 8 has an integrally formed sealing cylinder 9 for auxiliary sealing and guidance. This not only further enhances the sealing performance of the sealing disc 8 on the first liquid outlet 3 but also guides the sealing disc 8 during its movement, ensuring stable axial movement.

[0022] The top of the sealing disc 8 can extend along the axial direction of the valve core body 1 to the middle region of the valve core body 1, and in the extended state, it can completely cover and seal the first liquid outlet 3. The sealing disc 8 and the inner wall of the valve core body 1 are connected by a sliding fit.

[0023] A spring 7 is fitted on the outside of the temperature bulb 6 to provide a reset force for the sealing disc 8. The spring 7 can provide a stable reset force for the sealing disc 8 over a long period of time. One end of the spring 7 abuts against the bottom end face of the sealing disc 8, and the other end abuts against the bottom end face of the inner cavity of the valve core body 1. Through this installation method of abutting at both ends, the spring 7 achieves elastic support for the sealing disc 8. When the temperature bulb 6 shrinks in volume, the spring 7 can push the sealing disc 8 to reset in time.

[0024] The bottom surface of the valve core body 1 is provided with several second outlets 10 for the final output of fluid along the circumferential direction. The second outlets 10 are connected to the inner cavity of the valve core body 1 to form another channel for fluid output, so that the fluid can select different output channels under different working conditions, which increases the flexibility of valve core use.

[0025] The first outlet 3 and the second outlet 10 are both radially penetrating the side wall surface of the valve core body 1. The first outlet 3 and the second outlet 10 are arranged in a circumferential array along the axial direction of the valve core body 1, and the included angle between two adjacent first outlets 3 is equal to the included angle between two adjacent inlets 2. This symmetrical distribution is conducive to the uniform flow of fluid in the valve core, reducing the resistance during the fluid flow process and improving the fluid transport efficiency.

[0026] The specific working principle is as follows: When the external temperature is low, the volume of the ether medium inside the temperature bulb 6 shrinks. Under the action of its own elastic force, the spring 7 pushes the sealing disc 8 to move upward along the valve core body 1. The top of the sealing disc 8 extends to the middle area of ​​the valve core body 1, completely covering and sealing the first outlet 3. At this time, after the fluid enters the valve core from the inlet 2, because the first outlet 3 is blocked, the fluid can only flow into the inner cavity of the valve core body 1, and finally output through the second outlet 10, realizing a fluid transport path.

[0027] When the external temperature rises to a certain level, the ether medium inside the temperature bulb 6 expands due to heat, increasing its volume. The temperature bulb 6 exerts an upward thrust on the sealing disc 8, which overcomes the elastic force of the spring 7, pushing the sealing disc 8 to move downwards along the valve core body 1. As the sealing disc 8 moves downwards, its blockage of the first outlet 3 gradually disengages. When the temperature rises to a set value, the sealing disc 8 completely disengages from the first outlet 3, and the first outlet 3 is fully open. At this time, after the fluid enters the valve core from the inlet 2, a portion of the fluid is initially output through the first outlet 3, while the other portion flows into the inner cavity of the valve core body 1 and is finally output through the second outlet 10, realizing another fluid delivery path.

[0028] When the outside temperature drops again, the volume of the ether medium inside the temperature bulb 6 shrinks, the thrust of the temperature bulb 6 on the sealing plate 8 decreases, the elastic force of the spring 7 becomes dominant again, pushing the sealing plate 8 upward to re-seal the first outlet 3, and the fluid transport path returns to its initial state.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A compact valve core, comprising a valve core body (1), characterized in that: The valve core body (1) is equipped with a flow guiding component for realizing fluid guidance and delivery control; the flow guiding component includes a central partition (4) fixed to the outer wall of the valve core body (1), the top of the central partition (4) is evenly distributed with a number of inlet ports (2) for fluid entry along the circumferential direction, and the bottom of the central partition (4) is correspondingly distributed with a number of first outlet ports (3) for initial fluid output along the circumferential direction. A push rod (5) is fixedly installed at the bottom of the inner cavity of the valve core body (1). A temperature bulb (6) is sleeved on the outside of the push rod (5) to achieve thermal expansion and contraction with temperature changes to drive the component to move. A sealing disc (8) for sealing the first liquid outlet (3) is movably sleeved on the outside of the temperature bulb (6). A sealing cylinder (9) for auxiliary sealing and guidance is integrally formed at the bottom of the sealing disc (8).

2. A compact valve core according to claim 1, characterized in that: The top of the sealing disc (8) can extend along the axial direction of the valve core body (1) to the middle region of the valve core body (1), and can completely cover and seal the first liquid outlet (3) in the extended state.

3. A compact valve core according to claim 1, characterized in that: The outer side of the heating element (6) is fitted with a spring (7) for providing a restoring force to the sealing disc (8). One end of the spring (7) abuts against the bottom end face of the sealing disc (8), and the other end abuts against the bottom end face of the inner cavity of the valve core body (1) to achieve elastic support of the sealing disc (8) by the spring (7).

4. A compact valve core according to claim 1, characterized in that: The bottom surface of the valve core body (1) is provided with several second liquid outlets (10) for the final output of fluid in a circumferential direction. The second liquid outlets (10) are connected to the inner cavity of the valve core body (1) to form another channel for fluid output.

5. A compact valve core according to claim 1, characterized in that: The first liquid outlet (3) and the second liquid outlet (10) are both opened along the radial direction of the valve core body (1) on the side wall surface of the valve core body (1). The first liquid outlet (3) and the second liquid outlet (10) are arranged in a circumferential array along the axial direction of the valve core body (1), and the included angle between two adjacent first liquid outlets (3) is equal to the included angle between two adjacent liquid inlets (2).

6. A compact valve core according to claim 1, characterized in that: The sealing disc (8) and the inner wall of the valve core body (1) are connected by a sliding fit to ensure the smooth axial movement of the sealing disc (8).

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