Dustproof structure of multi-way reversing valve of agricultural locomotive

Abstract

The utility model discloses a dustproof structure of a multi-way reversing valve of an agricultural locomotive, which relates to the technical field of multi-way reversing valves and comprises a valve body, a connecting end is arranged on the side of the valve body, an operating rod is arranged on the surface of the connecting end, a dustproof cover is arranged between the operating rod and the connecting end, and an auxiliary component is arranged between the dustproof cover and the connecting end. A connecting pipe arranged at the top end of the dustproof cover and connected with the operating rod is arranged in the auxiliary assembly, the bottom end of the dustproof cover is connected with an annular plate, and hole grooves are annularly formed in the surface of the annular plate at equal intervals. According to the auxiliary mechanism, the dust cover arranged in the auxiliary mechanism can be used for preventing dust at the joint of the operating rod and the reversing valve, dust is prevented from entering the reversing valve and affecting normal use of the reversing valve, meanwhile, the dust cover can be detached from the joint of the operating rod and the reversing valve by operating a fixing pipe, a bolt and the like, and the dust cover is convenient to disassemble. The aged or damaged dust cover can be conveniently replaced, and the operation is relatively simple.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-way reversing valves, in particular to a dustproof structure of a multi-way reversing valve for an agricultural locomotive. Background Art

[0002] The multi-way reversing valve is a combination valve composed of two or more reversing valves. The reversing valve is a valve type that changes the on-off relationship of the oil channel connected to the valve body by the relative movement between the valve core and the valve body. According to different working requirements, auxiliary valves such as safety relief valves, one-way valves and oil replenishing valves can also be combined. The multi-way reversing valve also includes a manual type, which means that the distribution direction of the multi-way reversing valve is manually controlled by a handle or knob. Manual multi-way reversing valves are also installed in agricultural tractors. Since the working environment of agricultural tractors is dusty, a dustproof structure is required to prevent dust from entering the interior of the multi-way reversing valve.

[0003] The current dustproof structure of the multi-way reversing valve of agricultural locomotives is that a dust cover is arranged between the operating rod and the reversing valve to prevent dust from entering the interior of the reversing valve. However, the current dust cover is fixedly connected to the operating rod and the reversing valve. After long-term use, the rubber dust cover is easily aged or damaged, which is troublesome when it needs to be replaced. Utility Model Content

[0004] The utility model provides a dustproof structure for a multi-way reversing valve of an agricultural locomotive. By means of a dustproof cover arranged inside the auxiliary mechanism, the connection between the operating rod and the reversing valve can be dustproofed to prevent dust from entering the interior of the reversing valve and affecting the normal use of the reversing valve. At the same time, the dustproof cover can be disassembled from the connection between the operating rod and the reversing valve by operating a fixing pipe and bolts, etc., so that an aged or damaged dustproof cover can be replaced, and the operation is relatively simple. In summary, the problems in the background technology are solved.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The dustproof structure of a multi-way reversing valve for an agricultural locomotive comprises a valve body, a connecting end is arranged on the side of the valve body, and an operating rod is arranged on the surface of the connecting end, a dust cover is arranged between the operating rod and the connecting end, and an auxiliary component is arranged between the dust cover and the connecting end;

[0007] The interior of the auxiliary component includes a connecting pipe arranged at the top of the dust cover and connected to the operating rod, and the bottom end of the dust cover is connected to an annular plate, the surface of the annular plate is annularly and equidistantly provided with hole grooves, the top of the annular plate is provided with a limit plate, and the bottom end of the limit plate is provided with annularly and equidistantly provided positioning rods;

[0008] The auxiliary component further includes a circular groove arranged at the top end of the connecting end, and through holes are equidistantly provided in an annular manner at the bottom end of the circular groove.

[0009] As a further description of the above technical solution:

[0010] The inner diameter of the through hole and the hole groove is the same as the diameter of the positioning rod.

[0011] As a further description of the above technical solution:

[0012] The surface of the limiting plate is threadedly connected with a fixing pipe which is threadedly connected to the inner wall of the circular groove.

[0013] As a further description of the above technical solution:

[0014] The surface of the connecting pipe is threadedly connected with a bolt which is threadedly connected to the surface of the operating rod.

[0015] As a further description of the above technical solution:

[0016] The material of the dust cover is rubber.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] In the utility model, by means of the dust cover provided inside the auxiliary mechanism, the connection between the operating rod and the reversing valve can be protected from dust, thereby preventing dust from entering the interior of the reversing valve and affecting the normal use of the reversing valve. At the same time, the dust cover can also be removed from the connection between the operating rod and the reversing valve by operating the fixing pipe and bolts, etc., thereby facilitating the replacement of an aged or damaged dust cover, and the operation is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the dust-proof structure of the multi-way reversing valve for agricultural locomotives;

[0020] Figure 2 This is a schematic diagram of the surface structure of the operating rod in the utility model;

[0021] Figure 3 for Figure 1 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a schematic diagram of the internal structure of the adjusting rod in the utility model.

[0023] Legend:

[0024] Valve body; 2. Connection end; 3. Operating rod; 4. Dust cover; 5. Connecting pipe; 6. Ring plate; 7. Hole groove; 8. Limit plate; 9. Positioning rod; 10. Circular groove; 11. Through hole; 12. Fixing pipe; 13. Bolt. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-Figure 3 The dustproof structure of the multi-way reversing valve for agricultural locomotives comprises a valve body 1, a connecting end 2 is arranged on the side of the valve body 1, and an operating rod 3 is arranged on the surface of the connecting end 2, a dust cover 4 is arranged between the operating rod 3 and the connecting end 2, and an auxiliary component is arranged between the dust cover 4 and the connecting end 2; the interior of the auxiliary component comprises a connecting pipe 5 arranged at the top of the dust cover 4 and connected to the operating rod 3, and the bottom end of the dust cover 4 is connected to an annular plate 6, and the surface of the annular plate 6 is equidistantly arranged with hole grooves 7 in annular shapes, a limiting plate 8 is arranged at the top of the annular plate 6, and a positioning rod 9 is equidistantly arranged in annular shapes at the bottom end of the limiting plate 8; the interior of the auxiliary component also comprises a circular groove 10 arranged at the top of the connecting end 2, and a through hole 11 is opened in annular shapes at an equidistant inner bottom end of the circular groove 10. When in use, the handle at the top of the operating rod 3 is disassembled, and the positioning rod 9 is connected to the inside of the hole groove 7, and the dust cover 4 is connected to the connecting end 2. The dust cover 4 and the connecting pipe 5 are sleeved on the surface of the operating rod 3 and moved downward, so that the positioning rod 9 moves to the inside of the circular groove 10 and is connected to the inside of the through hole 11, so that the lower end of the dust cover 4 can be restricted inside the circular groove 10, and the bolt 13 is rotated to pass through the connecting pipe 5 and is connected to the inside of the threaded groove on the surface of the operating rod 3, so that the upper part of the dust cover 4 can be limited, and the fixing pipe 12 is rotated to the inside of the circular groove 10 and threadedly connected therebetween, so that the lower part of the dust cover 4 can be limited, so that the connection between the operating rod 3 and the connecting end 2 can be dustproofed by the dust cover 4 to prevent external dust from entering the interior of the reversing valve. At the same time, when the dust cover 4 is aged or damaged, the dust cover 4 can be replaced, and the operation is relatively simple. The handle is sleeved on the surface of the operating rod 3 and can be disassembled.

[0027] Furthermore, the inner diameters of the through hole 11 and the hole groove 7 are the same as the diameter of the positioning rod 9, which makes it convenient for the positioning rod 9 to pass through the hole groove 7 and connect with the inside of the through hole 11, so that the lower end of the dust cover 4 can be restricted inside the circular groove 10 to facilitate subsequent fixation.

[0028] Furthermore, the surface of the limit plate 8 is threadedly connected with a fixing tube 12 which is threadedly connected to the inner wall of the circular groove 10. It is convenient to rotate the fixing tube 12 to the inside of the circular groove 10 and thread them together, so that the lower end of the dust cover 4 can be connected to the connecting end 2.

[0029] Furthermore, the surface of the connecting tube 5 is threadedly connected with a bolt 13 which is threadedly connected to the surface of the operating rod 3, so that the bolt 13 can pass through the connecting tube 5 and connect to the surface of the operating rod 3, so that the connecting tube 5 and one end of the dust cover 4 can be fixed to the surface of the operating rod 3. Of course, the surface of the operating rod 3 is provided with a threaded groove, so as to facilitate the connection with the bolt 13.

[0030] Furthermore, the dust cover 4 is made of rubber. The rubber dust cover 4 is easy to move along with the movement of the operating rod 3 , and can also prevent dust from the connection between the operating rod 3 and the connecting end 2 .

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dustproof structure for a multi-way reversing valve for an agricultural locomotive, comprising a valve body (1), characterized in that: A connecting end (2) is provided on the side of the valve body (1), and an operating rod (3) is provided on the surface of the connecting end (2); a dust cover (4) is provided between the operating rod (3) and the connecting end (2), and an auxiliary component is provided between the dust cover (4) and the connecting end (2); The auxiliary component comprises a connecting pipe (5) arranged at the top of the dust cover (4) and connected to the operating rod (3), and the bottom of the dust cover (4) is connected to an annular plate (6), the surface of the annular plate (6) is provided with holes (7) at equal intervals in an annular manner, a limiting plate (8) is arranged at the top of the annular plate (6), and a positioning rod (9) is arranged at equal intervals in an annular manner at the bottom of the limiting plate (8); The auxiliary component further comprises a circular groove (10) arranged at the top of the connecting end (2), and through holes (11) are equidistantly provided in an annular manner at the bottom of the circular groove (10).

2. The dustproof structure of the multi-way reversing valve for agricultural locomotives according to claim 1 is characterized in that: The inner diameters of the through hole (11) and the hole groove (7) are the same as the diameter of the positioning rod (9).

3. The dustproof structure of the multi-way reversing valve for agricultural locomotives according to claim 1 is characterized in that: The surface of the limiting plate (8) is threadedly connected to a fixing pipe (12) which is threadedly connected to the inner wall of the circular groove (10).

4. The dustproof structure of the multi-way reversing valve for agricultural locomotives according to claim 1 is characterized in that: The surface of the connecting pipe (5) is threadedly connected to a bolt (13) which is threadedly connected to the surface of the operating rod (3).

5. The dustproof structure of the multi-way reversing valve for agricultural locomotives according to claim 1 is characterized in that: The material of the dust cover (4) is rubber.

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