A new type of built-in one-way valve vane pump body
By incorporating a built-in check valve design and a top core structure, the problems of high flow resistance and high energy loss in existing vane pumps are solved, enabling rapid directional fluid flow and efficient energy utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JUNTAI HYDRAULIC EQUIP CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-08-04
AI Technical Summary
The check valve of existing vane pumps is usually externally mounted, which results in high flow resistance, low overall efficiency, and large energy loss.
It adopts a built-in one-way valve design. By setting a top core on the side of the oil outlet channel to cooperate with the middle channel port, the fluid pressure is used to direct the fluid into the oil outlet channel, and the rapid flow of fluid is ensured by the conical fit and spring structure.
It reduces fluid flow resistance, improves the overall efficiency of the vane pump, and reduces energy loss.
Smart Images
Figure CN224592338U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vane pump technology, and in particular to a novel vane pump body with a built-in one-way valve. Background Technology
[0002] A vane pump is a positive displacement pump that uses sliding vanes on a rotating rotor (usually a cylindrical or elliptical rotor) to transport fluids. It features stable flow, low noise, and suitability for a variety of liquids, and is widely used in industries such as petroleum, chemical, food processing, pharmaceuticals, and agricultural irrigation.
[0003] The check valves used in existing vane pumps are usually externally mounted, resulting in a large assembly volume. The check valve includes a valve body, valve core, and spring, etc. This structural design results in high flow resistance, low overall efficiency of the vane pump, and large energy loss.
[0004] Therefore, existing technologies need to be improved and enhanced. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a new type of pump body with built-in one-way valve vane pump body with low fluid flow resistance, high overall efficiency and low energy loss.
[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows: A novel pump body with a built-in one-way valve vane includes a pump body, which has an oil inlet channel, an oil outlet channel, and an intermediate channel connecting the oil inlet channel and the oil outlet channel. The oil inlet channel and the oil outlet channel are perpendicular to each other with the intermediate channel. A top core is provided on the side of the oil outlet channel at the port of the intermediate channel, which cooperates with the port of the intermediate channel. The top core is used to direct the fluid flowing in from the oil inlet channel into the oil outlet channel.
[0007] As a further embodiment of this utility model, the port of the intermediate channel is a conical opening, and the top core has a conical surface that matches the conical opening.
[0008] As a further embodiment of this utility model, a plug is threadedly connected to the pump body corresponding to the top core, and a spring is provided between the plug and the top core.
[0009] As a further embodiment of this utility model, the plug is an internal hexagonal external thread plug.
[0010] As a further embodiment of this utility model, a blind groove is provided on the side of the top core facing the plug, one end of the spring is connected to the plug, and the other end abuts against the bottom of the blind groove.
[0011] As a further embodiment of this invention, the oil outlet channel is stepped.
[0012] As a further embodiment of this invention, the diameter of the oil outlet channel gradually changes in a stepped manner along the fluid flow direction.
[0013] Compared with the prior art, the beneficial effects of this utility model are: Due to the aforementioned structural design, a top core is installed on the side of the oil outlet channel corresponding to the port of the intermediate channel, which is used to direct the fluid flowing from the oil inlet channel into the oil outlet channel. When the fluid attempts to flow from the intermediate channel to the oil outlet channel, the pressure of the fluid acts on the top core, causing the top core to move away from the port of the intermediate channel. Since the port of the intermediate channel is close to the oil outlet channel, a large amount of fluid can flow from the intermediate channel to the oil outlet channel quickly, improving the overall efficiency of the vane pump and reducing energy loss. Attached Figure Description
[0014] Appendix Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Appendix Figure 2 This is a side view of an embodiment of the present utility model; Appendix Figure 3 For the appendix Figure 2 AA cross-section view.
[0015] The labels in the diagram are as follows: 10-Pump body; 11-Inlet channel, 12-Outlet channel, 13-Intermediate channel; 21-Top core, 22-Plug, 23-Spring; 211-Blind slot. Detailed Implementation
[0016] The present invention will now be described in further detail with reference to the accompanying drawings: The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.
[0017] In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0018] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example
[0019] like Figure 1-3As shown, this application discloses a novel vane pump body with a built-in one-way valve, comprising a pump body 10. The pump body 10 has an oil inlet channel 11, an oil outlet channel 12, and an intermediate channel 13 connecting the oil inlet channel 11 and the oil outlet channel 12. The oil inlet channel 11, the oil outlet channel 12, and the intermediate channel 13 are all perpendicular to each other. A top core 21 is provided on the side of the oil outlet channel 12 corresponding to the port of the intermediate channel 13, which cooperates with the port of the intermediate channel 13. The top core 21 is used to direct the fluid flowing in from the oil inlet channel 11 into the oil outlet channel 12. Through the above structural design, when the fluid attempts to flow from the intermediate channel 13 to the oil outlet channel 12, the pressure of the fluid acts on the top core 21, causing the top core to move away from the port of the intermediate channel 13. Since the port of the intermediate channel 13 is close to the oil outlet channel 12, the fluid can flow rapidly from the intermediate channel to the oil outlet channel in large quantities, improving the overall efficiency of the vane pump and reducing energy loss.
[0020] Specifically, the port of the intermediate channel 12 is a conical opening, and the top core 21 has a conical surface that matches the conical opening, so that the top core and the port of the intermediate channel form a tight fit.
[0021] Specifically, the pump body 10 is threaded with a plug 22 corresponding to the top core 21. A spring 23 is provided between the plug 22 and the top core 21. When the top core is not subjected to pressure from the fluid in the middle channel, the top core is pressed against the port of the middle channel under the action of the spring to prevent the fluid in the pump body from flowing in a non-directional manner.
[0022] As a further embodiment of this utility model, the plug 22 is an internal hexagonal external thread plug. Due to the internal hexagonal design, it can be installed and disassembled using a corresponding internal hexagonal wrench, making the operation simple and convenient. Moreover, compared with the traditional round knob-type plug, it is more compact and occupies less space.
[0023] Specifically, the top core 21 is provided with a blind groove 211 on the side facing the plug 22, one end of the spring 23 is connected to the plug 22, and the other end abuts against the bottom of the blind groove 211.
[0024] Specifically, the oil outlet channel 12 is stepped, and the diameter of the oil outlet channel 12 gradually changes in a stepped manner along the fluid flow direction, thereby regulating the fluid flow rate and pressure.
[0025] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure, low fluid resistance, and strong practicality.
[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.
Claims
1. A new type of built-in one-way valve vane pump body, comprising a pump body (10), characterized in that: The pump body (10) has an oil inlet channel (11), an oil outlet channel (12), and an intermediate channel (13) connecting the oil inlet channel (11) and the oil outlet channel (12). The oil inlet channel (11) and the oil outlet channel (12) are perpendicular to the intermediate channel (13). A top core (21) is provided on the side of the oil outlet channel (12) at the port of the intermediate channel (13) to cooperate with the port of the intermediate channel (13). The top core (21) is used to direct the fluid flowing in from the oil inlet channel (11) into the oil outlet channel (12).
2. The new built-in one-way valve vane pump body of claim 1, wherein: The port of the intermediate channel (13) is a conical opening, and the top core (21) has a conical surface that matches the conical opening.
3. The new and improved pump body of a one-way valve vane pump as defined in claim 2, wherein: The pump body (10) is threaded with a plug (22) corresponding to the top core (21), and a spring (23) is provided between the plug (22) and the top core (21).
4. The new and improved pump body of a one-way valve vane pump as defined in claim 3, wherein: The plug (22) is an internal hexagonal external thread plug.
5. The new and improved pump body of a one-way valve vane pump as defined in claim 4, wherein: The top core (21) has a blind groove (211) on the side facing the plug (22). One end of the spring (23) is connected to the plug (22), and the other end abuts against the bottom of the blind groove (211).
6. The new and improved pump body of a one-way valve vane pump as defined in claim 5, wherein: The oil outlet channel (12) is stepped.
7. The new and improved pump body of a one-way valve vane pump as defined in claim 6, wherein: The diameter of the oil outlet channel (12) gradually changes in a stepped manner along the direction of fluid flow.