Control valve group

Abstract

The utility model discloses a control valve bank which comprises a control valve bank body, each oil port of the control valve bank body is fixedly connected with a transmission pipeline, the top of one end of each transmission pipeline is fixedly connected with an extension frame, one end, away from the transmission pipeline, of each extension frame is fixedly connected with an assembly pipeline, and the inner side of each extension frame is rotationally connected with a supporting shaft rod. The middle of the supporting shaft rod is fixedly connected with a filtering cylinder, the filtering cylinder is located between the conveying pipeline and the extending frame, and a filtering assembly is arranged in the filtering cylinder. Through the structural cooperation of the filter cartridge, solids in a medium can be filtered out in the flowing process of the medium, the situation that the solids directly enter the oil tank, and consequently much impurities are accumulated in the oil tank is avoided, and when the filtering effect of the filter screen plate is poor, the filter screen plate can be exposed to be cleaned or replaced in cooperation with the arrangement of the sealing assembly; therefore, the application effect of the filter screen plate is ensured.

Description

Technical Field

[0001] This utility model relates to the field of valve assembly technology, specifically a control valve assembly. Background Technology

[0002] A control valve assembly is a device used in a fluid system to control the direction, pressure, and flow rate of a fluid. It is a device that enables or stops the flow of media in piping and equipment and can control its flow rate. Control valve assemblies can be controlled by various transmission methods, such as manual, electric, hydraulic, and pneumatic. They can operate according to predetermined requirements under the action of pressure, temperature, or other forms of sensor signals, or simply open or close without relying on sensor signals.

[0003] However, in traditional control valve assemblies, due to the lack of effective filtration measures during the flow of the medium, solids carried by the medium can easily flow into the oil tank, resulting in a large accumulation of contaminants in the oil tank.

[0004] Therefore, this utility model provides a control valve assembly to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a control valve assembly that solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a control valve assembly, comprising a control valve assembly body, wherein a transmission pipe is fixedly connected to each oil port of the control valve assembly body, an extension frame is fixedly connected to the top of one end of the transmission pipe, an assembly pipe is fixedly connected to the end of the extension frame away from the transmission pipe, a support shaft is rotatably connected to the inner side of the extension frame, a filter cylinder is fixedly connected to the middle of the support shaft, and the filter cylinder is located between the transmission pipe and the extension frame, a filter assembly is provided inside the filter cylinder, the filter assembly is used to block solids in the medium, and a sealing assembly is provided between the inner wall and the outer wall of the filter cylinder, the sealing assembly is used to form a seal for the filter cylinder.

[0007] Preferably, the sealing assembly includes a mounting cavity, sealing rings, a notch, and a linkage seat. The mounting cavity is formed between the inner and outer walls of the filter cylinder. Sealing rings are slidably connected to both ends of the mounting cavity, and the two sealing rings are respectively snapped into the transmission pipe and the assembly pipe. A notch communicating with the mounting cavity is formed in the middle of one end of the filter cylinder. A linkage seat is fixedly connected to the end of each of the two sealing rings near the notch, and a travel groove is formed in the middle of the linkage seat.

[0008] Preferably, the sealing assembly further includes an extension seat, a drive shaft, a drive worm gear, and a guide shaft. The end of the filter cartridge near the notch is fixedly connected to the extension seat, one end of the extension seat is vertically rotatably connected to the drive shaft, the bottom end of the drive shaft is fixedly connected to the drive worm gear, the middle part of the mounting cavity near the notch is rotatably connected to the guide shaft, one end of the guide shaft is fixedly connected to a drive worm gear, the middle part of the guide shaft is fixedly connected to a guide plate, and the two ends of the guide plate are respectively movably connected to the inside of two stroke through slots.

[0009] Preferably, the filter assembly includes a positioning ring and a filter screen plate. Positioning rings are fixedly connected to both ends inside the filter cylinder. The edge of the positioning ring is provided with a threaded hole, and the edge of the filter screen plate is provided with a through hole. The filter screen plate and the positioning ring are connected by screws.

[0010] Preferably, the transmission pipe and the assembly pipe are each provided with an assembly groove at their respective ends that are close to each other, and the sealing ring is snapped into the inside of the assembly groove.

[0011] Preferably, a sealing strip is fixedly connected to both the outer side of the sealing ring and the inside of the assembly groove, and the sealing strip is made of a flexible material.

[0012] Preferably, both ends of the guide plate are fixedly connected with linkage pins, and the guide plate is connected to the inside of the travel groove through the linkage pins.

[0013] Beneficial effects

[0014] This invention provides a control valve assembly. Compared with the prior art, it has the following advantages:

[0015] This control valve assembly, through the structural cooperation of the filter cartridge, can filter out solids in the medium during the medium flow process, preventing solids from directly entering the oil tank and causing excessive accumulation of impurities in the oil tank. Furthermore, when the filter screen plate's filtration effect is poor, the sealing component allows the filter screen plate to be exposed for cleaning or replacement, thereby ensuring the application effect of the filter screen plate. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the present invention;

[0017] Figure 2 This is a side view of the present invention;

[0018] Figure 3 This is a schematic diagram of the connection structure between the extension frame and the assembly pipe of this utility model;

[0019] Figure 4 This is a schematic diagram of the separate structure of the extension frame and the support shaft of this utility model;

[0020] Figure 5 This is a schematic diagram of the filter cartridge of this utility model;

[0021] Figure 6 This is a schematic diagram of the sealing component of this utility model.

[0022] In the diagram: 1. Control valve assembly body; 2. Transmission pipeline; 3. Extension frame; 4. Assembly pipeline; 5. Support shaft; 6. Filter cartridge; 7. Filter assembly; 8. Sealing assembly; 9. Positioning ring; 10. Filter screen; 11. Mounting cavity; 12. Sealing ring; 13. Notch; 14. Linkage seat; 15. Stroke groove; 16. Extension seat; 17. Drive shaft; 18. Drive worm gear; 19. Guide shaft; 20. Driving worm wheel; 21. Guide plate. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-6 A control valve assembly includes a control valve assembly body 1. A transmission pipe 2 is fixedly connected to each oil port of the control valve assembly body 1. An extension frame 3 is fixedly connected to the top of one end of the transmission pipe 2. An assembly pipe 4 is fixedly connected to the end of the extension frame 3 away from the transmission pipe 2. A support shaft 5 is rotatably connected to the inner side of the extension frame 3. A filter cylinder 6 is fixedly connected to the middle of the support shaft 5. The filter cylinder 6 is located between the transmission pipe 2 and the extension frame 3. A filter assembly 7 is provided inside the filter cylinder 6. The filter assembly 7 is used to block solids in the medium. A sealing assembly 8 is provided between the inner wall and the outer wall of the filter cylinder 6. The sealing assembly 8 is used to form a seal for the filter cylinder 6.

[0025] In this embodiment, the control valve assembly body 1 includes a valve core, and further includes:

[0026] The drive section provides the power required by the valve core;

[0027] The positioning feedback section is used to measure the position of the valve core and feed it back to the control system to achieve closed-loop control.

[0028] The manual operation section is used for manually controlling the main body of the control valve assembly 1;

[0029] The automatic control section is used for the automatic control of the main body 1 of the control valve group;

[0030] Its working principle is mainly based on electromagnetic force, fluid mechanics, and mechanical principles. Among them, the electromagnetic force principle uses the electromagnetic reversal principle to change the electromagnetic polarity of the valve core, thereby changing the direction of valve movement; the fluid mechanics principle changes the flow rate through the valve by adjusting the valve opening, thereby achieving the purpose of fluid control; the mechanical principle changes the valve's size and shape to change the valve's resistance loss, thereby achieving control. This is a mature existing technology and will not be elaborated further here.

[0031] In detail, both the transmission pipe 2 and the assembly pipe 4 have assembly grooves at their close ends, and the sealing ring 12 is snapped into the inside of the assembly groove. The assembly groove allows the sealing ring 12 to move into the transmission pipe 2 or the assembly pipe 4, thereby locking the position of the filter cartridge 6 and preventing the filter cartridge 6 from shaking when the medium flows.

[0032] Here, a support hole is provided on the inner side of the extension frame 3, the support shaft 5 is assembled inside the support hole, and a ball bearing is provided at the connection between the support shaft 5 and the support hole.

[0033] The sealing assembly 8 includes a mounting cavity 11, a sealing ring 12, a notch 13, and a linkage seat 14. The mounting cavity 11 is provided between the inner wall and the outer wall of the filter cylinder 6. Both ends of the mounting cavity 11 are slidably connected to the sealing ring 12, and the two sealing rings 12 are respectively snapped into the transmission pipe 2 and the assembly pipe 4. A notch 13 communicating with the mounting cavity 11 is provided in the middle of one end of the filter cylinder 6. The two sealing rings 12 are fixedly connected to the linkage seat 14 at the end near the notch 13, and a stroke through groove 15 is provided in the middle of the linkage seat 14.

[0034] Specifically, sealing strips are fixedly connected to both the outer side of the sealing ring 12 and the inside of the assembly groove. The sealing strips are made of flexible material. By using the sealing strips, the gap between the sealing ring 12 and the assembly groove can be sealed after the sealing ring 12 is displaced, preventing the medium from flowing out from the gap between the sealing ring 12 and the assembly groove.

[0035] The sealing assembly 8 also includes an extension seat 16, a drive shaft 17, a drive worm gear 18, and a guide shaft 19. The filter cartridge 6 is fixedly connected to the extension seat 16 at one end near the notch 13. The drive shaft 17 is vertically rotatably connected to one end of the extension seat 16. The drive worm gear 18 is fixedly connected to the bottom end of the drive shaft 17. The guide shaft 19 is rotatably connected to the middle part of the mounting cavity 11 at one end near the notch 13. A drive worm gear 20 is fixedly connected to one end of the guide shaft 19. A guide plate 21 is fixedly connected to the middle part of the guide shaft 19, and the two ends of the guide plate 21 are movably connected to the inside of two stroke through slots 15 respectively.

[0036] The filter assembly 7 includes a positioning ring 9 and a filter screen plate 10. The two ends of the filter cylinder 6 are fixedly connected to the positioning ring 9. The edge of the positioning ring 9 is provided with a threaded hole, and the edge of the filter screen plate 10 is provided with a through hole. The filter screen plate 10 and the positioning ring 9 are connected by screws.

[0037] Furthermore, the outer side of the filter screen 10 is provided with an anti-rust coating to prevent the filter screen 10 from rusting when the medium flows.

[0038] Here, both ends of the guide plate 21 are fixedly connected with linkage pins, and the guide plate 21 is connected to the inside of the travel groove 15 through the linkage pins. By using the linkage pins, during the rotation of the guide plate 21, the displacement of the linkage pins inside the travel groove 15 can be used to push the sealing ring 12 to slide adaptively inside the mounting cavity 11.

[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0040] The working principle involves assembling the external media transmission pipe with the assembly pipe 4. When the media flows through the filter screen 10, it can filter out solids in the media, preventing solids from entering the oil tank and causing excessive contaminant accumulation. If the filter screen 10 does not filter effectively, the drive shaft 17 can be rotated to cause the guide shaft 19 to actuate the drive worm gear 20, thereby driving the guide shaft 19 to rotate. With the guide shaft 19 connected to the guide plate 21, the guide plate 21 rotates with the guide shaft 19, and at the same time pulls the two linkage seats 14, causing the two sealing rings 12 to move closer to each other until the restriction on the filter cylinder 6 is released. Then, the filter cylinder 6 is pushed, causing it to rotate under the support of the support shaft 5, exposing the filter screen 10, which can then be cleaned or replaced.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A control valve assembly, comprising a control valve assembly body (1), characterized in that: Each port of the control valve assembly body (1) is fixedly connected to a transmission pipe (2). An extension frame (3) is fixedly connected to the top of one end of the transmission pipe (2). An assembly pipe (4) is fixedly connected to the end of the extension frame (3) away from the transmission pipe (2). A support shaft (5) is rotatably connected to the inner side of the extension frame (3). A filter cylinder (6) is fixedly connected to the middle of the support shaft (5). The filter cylinder (6) is located between the transmission pipe (2) and the extension frame (3). A filter assembly (7) is provided inside the filter cylinder (6). The filter assembly (7) is used to block solids in the medium. A sealing assembly (8) is provided between the inner wall and the outer wall of the filter cylinder (6). The sealing assembly (8) is used to form a seal for the filter cylinder (6).

2. A control valve assembly according to claim 1, characterized in that: The sealing assembly (8) includes a mounting cavity (11), a sealing ring (12), a notch (13), and a linkage seat (14). The mounting cavity (11) is provided between the inner wall and the outer wall of the filter cylinder (6). Both ends of the mounting cavity (11) are slidably connected to the sealing ring (12), and the two sealing rings (12) are respectively snapped into the transmission pipe (2) and the assembly pipe (4). A notch (13) communicating with the mounting cavity (11) is provided in the middle of one end of the filter cylinder (6). The two sealing rings (12) are fixedly connected to the linkage seat (14) at the end near the notch (13), and a stroke through groove (15) is provided in the middle of the linkage seat (14).

3. A control valve assembly according to claim 2, characterized in that: The sealing assembly (8) also includes an extension seat (16), a drive shaft (17), a drive worm (18), and a guide shaft (19). The filter cartridge (6) is fixedly connected to the extension seat (16) at one end near the notch (13). The extension seat (16) is vertically rotatably connected to the drive shaft (17) at one end. The drive worm (18) is fixedly connected to the bottom end of the drive shaft (17). The guide shaft (19) is rotatably connected to the middle part of the mounting cavity (11) near the notch (13). The guide shaft (19) is fixedly connected to a drive worm wheel (20) at one end. The guide shaft (19) is fixedly connected to a guide plate (21) at the middle part. The two ends of the guide plate (21) are movably connected to the inside of two stroke through slots (15).

4. A control valve assembly according to claim 1, characterized in that: The filter assembly (7) includes a positioning ring (9) and a filter screen (10). The two ends of the filter cylinder (6) are fixedly connected to the positioning ring (9). The edge of the positioning ring (9) is provided with a threaded hole. The edge of the filter screen (10) is provided with a through hole. The filter screen (10) and the positioning ring (9) are connected by screws.

5. A control valve assembly according to claim 2, characterized in that: The transmission pipe (2) and the assembly pipe (4) are both provided with assembly grooves at their respective ends, and the sealing ring (12) is snapped into the inside of the assembly groove.

6. A control valve assembly according to claim 5, characterized in that: The sealing ring (12) is fixedly connected to a sealing strip on the outside and inside the assembly groove, and the sealing strip is made of a flexible material.

7. A control valve assembly according to claim 3, characterized in that: Both ends of the guide plate (21) are fixedly connected with linkage pins, and the guide plate (21) is connected to the inside of the travel groove (15) through the linkage pins.

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