Novel three-group six-way multi-way valve control mechanism

Abstract

The utility model provides a novel three-group six-way multi-way valve operating mechanism which comprises a transverse support, a fender is welded to the side of the transverse support, a fixing bolt is rotatably installed on the fender, a protective shell is fixedly installed at one end of the fixing bolt, a sleeve is welded to the fender, and the other end of the sleeve is fixedly provided with a nut. An operating arm pin shaft is movably installed in the sleeve, an operating arm is welded to the operating arm pin shaft, a threaded hole is formed in the operating arm, a limiting bolt is rotatably installed in the threaded hole, and a limiting hole is formed in the fender. When the novel three-group six-way multi-way valve control mechanism is used, the three-group six-way multi-way valve flexible shaft control mechanism is changed from the inner side of a mud guard to the outer side, a protection structure is additionally arranged, and a control arm pin shaft and a control arm are welded and then connected to a sleeve, so that the fit clearance is smaller, the mechanism is more compact, the control is more stable, the control space is enlarged, and the control comfort is improved; the control structure is simplified and the appearance is beautified.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic operating equipment, specifically a new three-group six-way multi-way valve operating mechanism. Background Technology

[0002] To meet the operational needs of various agricultural implements, the hydraulic output linkage of the tractor's multi-way valve has been increased from the existing two sets of four-way linkages to three sets of six-way linkages. To ensure parts commonality, the original two sets of four-way linkage control mechanisms remain unchanged; only the addition of a third hydraulic output linkage control mechanism needs to be considered. The existing tractor multi-way valve's third hydraulic output linkage flexible shaft control mechanism includes a flexible shaft control assembly, a flexible shaft control assembly, and a welded mounting bracket. The mounting bracket is bolted to the inside of the mudguard. The flexible shaft control assembly is connected to the mounting seat in the welded mounting bracket via a pin. One end of the flexible shaft is fixed to the mounting bracket with a nut and connected to the control assembly via a pin; the other end is connected to the multi-way valve stem via a pin. The user controls the flexible shaft by moving the flexible shaft control assembly back and forth, thereby controlling the opening and closing of the upper and lower oil ports of the hydraulic output linkage.

[0003] The existing control mechanism has the entire flexible shaft control mechanism installed inside the mudguard during use. The clearance between it and the main gear shift lever, differential lock lever, and lifting handle is small, making operation inconvenient. In addition, the flexible shaft control mechanism occupies a lot of space, which is not conducive to adding a protective cover to the safety frame model or developing interior trim for the cab model. The control mechanism is cumbersome and exposed next to the seat, which is not simple and beautiful. Furthermore, the flexible shaft control assembly and the mounting bracket on the fixed plate are connected by a pin, resulting in a large clearance and obvious shaking during operation. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a new three-group six-way multi-port valve operating mechanism to solve the problems mentioned in the background art. This utility model has a novel structure. In use, the three-group six-way multi-port valve flexible shaft operating mechanism is moved from the inside of the mudguard to the outside, and a protective structure is added. The operating arm pin is welded to the operating arm and then connected to the sleeve. The fit clearance is smaller, the mechanism is more compact, the operation is more stable, the operating structure is simplified, the appearance is improved, the operating space is increased, and the operating comfort is improved.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a new three-group six-way multi-way valve operating mechanism, including a horizontal support, a mudguard welded to the side of the horizontal support, a fixing bolt rotatably mounted on the mudguard, a protective shell fixedly mounted at one end of the fixing bolt, a sleeve welded to the mudguard, an operating arm pin movably mounted inside the sleeve, an operating arm welded to one end of the operating arm pin, a threaded hole on the operating arm, a limit bolt rotatably mounted inside the threaded hole, a limit hole on the mudguard, and the limit bolt fixed inside the limit hole after rotating a certain angle with the operating arm.

[0006] Furthermore, the mudguard has an opening, and a rubber ring is fixed on the inner wall of the opening, with a flexible shaft passing through the inside of the rubber ring.

[0007] Furthermore, a sleeve is fixed to one end of the flexible shaft, and a multi-way valve is fixed to one end of the sleeve. The multi-way valve is fixed to the mudguard.

[0008] Furthermore, a fixing clip and a fixing plate are welded to the mudguard, the flexible shaft is fixed in direction by the fixing clip, and one end of the flexible shaft is fixed to the mudguard by the fixing plate.

[0009] Furthermore, a spindle is movably mounted inside the flexible shaft, a connecting fork is fixed to one end of the spindle, and a rocker arm is movably mounted to one end of the connecting fork.

[0010] Furthermore, the rocker arm and the connecting fork are movably connected by a pin, and one end of the pin is movably fitted with a washer and a cotter pin.

[0011] Furthermore, the cotter pin is movably inserted into the pin shaft, the cotter pin is movably mounted on one side of the washer, one end of the rocker arm is welded to the sleeve, a friction-reducing retaining ring is installed between the sleeve and the bushing, and the operating arm pin shaft is installed inside the friction-reducing retaining ring.

[0012] Furthermore, one end of the control arm pin is welded to the control arm, and one end of the rocker arm is welded to the sleeve. Both the sleeve and the control arm pin have through holes, and connecting bolts are movably installed inside the through holes.

[0013] The beneficial effects of this utility model are:

[0014] 1. This new three-group six-way multi-way valve operating mechanism, in use, changes the three-group six-way multi-way valve flexible shaft operating mechanism from the inside of the mudguard to the outside, and adds a protective structure. The operating arm pin is welded to the operating arm and then connected to the sleeve. The fit clearance is smaller, the mechanism is more compact, the operation is more stable, the operating space is increased, the operating comfort is improved, the operating structure is simplified, and the appearance is improved.

[0015] 2. This new three-group six-way multi-way valve operating mechanism, when the operating arm controls the opening size of the upper and lower oil ports of the multi-way valve, after the limit bolt is installed inside the threaded hole, when the operating arm rotates to a certain angle, one end of the limit bolt contacts the mudguard to limit the operating arm, thereby completing the fixed-point opening of the oil port of the multi-way valve. Later, after the limit bolt is fixed inside the limit hole, the operating arm is limited for a long time. After the operating arm is limited, the oil port of the multi-way valve can be opened or closed for a long time, which can free up one hand to complete other operations of the tractor. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a new three-group six-way multi-way valve control arm according to the present invention;

[0017] Figure 2 This is an assembly diagram of a new three-group six-way multi-way valve operating mechanism according to the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of a new protective shell for a three-group six-way multi-way valve operating mechanism according to this utility model;

[0019] In the diagram: 1. Horizontal support; 2. Mudguard; 3. Fixing bolt; 4. Limiting hole; 5. Sleeve; 6. Operating arm; 7. Threaded hole; 8. Limiting bolt; 9. Opening; 10. Rubber ring; 11. Flexible shaft; 12. Sleeve; 13. Multi-way valve; 14. Fixing clip; 15. Fixing plate; 16. Connecting fork; 17. Pin; 18. Rocker arm; 19. Anti-friction retaining ring; 20. Connecting bolt; 21. Protective shell. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figures 1 to 3This utility model provides a technical solution: a new three-group six-way multi-way valve operating mechanism, including a horizontal support 1, a mudguard 2 welded to the side of the horizontal support 1, a fixing bolt 3 rotatably mounted on the mudguard 2, a protective shell 21 fixedly mounted at one end of the fixing bolt 3, a sleeve 5 welded to the mudguard 2, an operating arm pin movably mounted inside the sleeve 5, an operating arm 6 welded to one end of the operating arm pin, a threaded hole 7 on the operating arm 6, a limit bolt 8 rotatably mounted inside the threaded hole 7, a limit hole 4 on the mudguard 2, the limit bolt 8 being fixed inside the limit hole 4 after the operating arm rotates a certain angle, an opening 9 on the mudguard 2, a rubber ring 10 fixed on the inner wall of the opening 9, a flexible shaft 11 passing through the inside of the rubber ring 10, the rubber ring 10 providing protection for the flexible shaft 11 and preventing friction damage to the flexible shaft 11 inside the opening 9.

[0022] In this embodiment, a sleeve 12 is fixed to one end of the flexible shaft 11, and a multi-way valve 13 is fixed to one end of the sleeve 12. The multi-way valve 13 is fixed to the mudguard 2. A fixing clip 14 and a fixing plate 15 are welded to the mudguard 2. The flexible shaft 11 is fixed in direction by the fixing clip 14. One end of the flexible shaft 11 is fixed to the mudguard 2 by the fixing plate 15. A spindle is movably installed inside the flexible shaft 11. A connecting fork 16 is fixed to one end of the spindle. A rocker arm 18 is movably installed at one end of the connecting fork 16. The fixing clip 14 and the fixing plate 15 realize the fixed installation of the flexible shaft 11.

[0023] In this embodiment, the rocker arm 18 and the connecting fork 16 are movably connected by a pin 17. A washer and a cotter pin are movably installed at one end of the pin 17. The cotter pin is movably inserted into the pin 17 and movably installed on one side of the washer. A sleeve is welded to one end of the rocker arm 18. A friction-reducing retaining ring 19 is installed between the sleeve and the sleeve 5. An operating arm pin is fixed inside the friction-reducing retaining ring 19. One end of the operating arm pin is welded to the operating arm 6. Both the sleeve and the operating arm pin have through holes. A connecting bolt 20 is movably installed inside the through holes. The operating arm pin is welded to the operating arm 6 and then connected to the sleeve 5. The fit clearance is smaller, the mechanism is more compact, the operation is more stable, the operating space is increased, and the operating comfort is improved.

[0024] In use, the sleeve 5 is welded to the mudguard 2, and one end of the control arm pin is welded to the control arm 6. The control arm pin passes through the sleeve 5 from the inside of the mudguard 2 and rotates around the sleeve 5. Anti-friction retaining rings 19 are installed at both ends of the sleeve 5, and a bushing is installed inside the sleeve 5. The rocker arm 18 is welded to the connecting sleeve, which has a through hole and is fixedly installed on the control arm pin by connecting bolts 20 and nuts, so that the control arm 6 and the rocker arm 18 can move synchronously. When the user moves the control arm 6, the control arm pin welded to the control arm 6 rotates, which drives the rocker arm 18 to rotate. The rotation of the rocker arm 18 drives the spindle to push and pull, which in turn drives the valve stem of the multi-way valve 13 to move, so as to open and close the upper and lower oil ports of the valve block, thereby realizing the control of agricultural machinery. At the same time, in order to enhance the sealing, a protective shell is added to the outside of the mudguard 2. 21. Install the protective shell 21 with the fixing bolt 3 and nut to prevent water and mud from entering the moving parts and avoid operation jamming. Add a rubber ring 10 at the opening 9 of the mudguard 2 to reduce the friction between the flexible shaft 11 and the mudguard 2, and add a fixing clip 14 to fix the direction of the flexible shaft 11. When the control arm 6 realizes the control of the opening size of the upper and lower oil ports of the multi-way valve, after the limit bolt 8 is installed in the threaded hole 7, when the control arm 6 rotates at a certain angle, one end of the limit bolt 8 contacts the mudguard 2 to limit the control arm 6, thereby completing the fixed opening of the oil port of the multi-way valve. Later, after the limit bolt 8 is fixed in the inside of the limit hole 4, the control arm 6 is limited for a long time. After the control arm 6 is limited, the oil port of the multi-way valve can be opened or closed for a long time, which can free one hand to complete other operations of the tractor.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel three-group six-way multi-way valve operating mechanism, comprising a horizontal support (1), characterized in that: A mudguard (2) is welded to the side of the horizontal support (1). A fixing bolt (3) is rotatably installed on the mudguard (2). A protective shell (21) is fixedly installed at one end of the fixing bolt (3). A sleeve (5) is welded to the mudguard (2). An operating arm (6) is movably installed inside the sleeve (5). A threaded hole (7) is opened on the operating arm (6). A limit bolt (8) is rotatably installed inside the threaded hole (7). A limit hole (4) is opened on the mudguard (2). The limit bolt (8) is fixed inside the limit hole (4) after rotating a certain angle with the operating arm (6).

2. The novel three-group six-way multi-way valve operating mechanism according to claim 1, characterized in that: The mudguard (2) has an opening (9), and a rubber ring (10) is fixed on the inner wall of the opening (9). A flexible shaft (11) passes through the inside of the rubber ring (10).

3. A novel three-group six-way multi-way valve operating mechanism according to claim 2, characterized in that: One end of the flexible shaft (11) is fixed with a sleeve (12), and one end of the sleeve (12) is fixed with a multi-way valve (13), which is fixed on the mudguard (2).

4. A novel three-group six-way multi-way valve operating mechanism according to claim 2, characterized in that: The mudguard (2) is welded with a fixing clip (14) and a fixing plate (15). The flexible shaft (11) is fixed in direction by the fixing clip (14), and one end of the flexible shaft (11) is fixed on the mudguard (2) by the fixing plate (15).

5. A novel three-group six-way multi-way valve operating mechanism according to claim 4, characterized in that: The flexible shaft (11) has a spindle movably mounted inside, and a connecting fork (16) is fixed at one end of the spindle. A rocker arm (18) is movably mounted at one end of the connecting fork (16).

6. A novel three-group six-way multi-way valve operating mechanism according to claim 5, characterized in that: The rocker arm (18) and the connecting fork (16) are movably connected by a pin (17), and a washer and a cotter pin are movably installed at one end of the pin (17).

7. A novel three-group six-way multi-way valve operating mechanism according to claim 6, characterized in that: The cotter pin is movably inserted into the pin shaft (17), the cotter pin is movably installed on one side of the washer, one end of the rocker arm (18) is welded to the sleeve, a friction-reducing retaining ring (19) is installed between the sleeve and the sleeve (5), and the operating arm pin shaft is installed inside the friction-reducing retaining ring (19).

8. A novel three-group six-way multi-way valve operating mechanism according to claim 7, characterized in that: One end of the control arm pin is welded to the control arm (6), and one end of the rocker arm (18) is welded to the sleeve. Both the sleeve and the control arm pin have through holes, and a connecting bolt (20) is movably installed inside the through hole.

Images