Gear shifting handle quick dismounting and mounting mechanism and harvester with gear shifting handle quick dismounting and mounting mechanism

Abstract

The invention relates to the field of agricultural equipment, in particular to a gear shifting handle quick dismounting and mounting mechanism and a harvester with the gear shifting handle quick dismounting and mounting mechanism. The gear shifting handle quick dismounting and mounting mechanism comprises a gear shifting handle upper rod and a gear shifting handle lower rod, and one end of the gear shifting handle upper rod is detachably connected with one end of the gear shifting handle lower rod through a quick dismounting and mounting assembly. The harvester comprises the gear shifting handle quick dismounting and mounting mechanism. The gear shifting handle has the advantages of being reasonable and ingenious in structural design, capable of rapidly achieving rapid disassembly and assembly of the upper rod and the lower rod of the gear shifting handle and very convenient to operate.

Description

Technical Field

[0001] The present invention relates to the field of agricultural machinery and equipment, and in particular to a shift handle quick disassembly and assembly mechanism and a harvester having the same. Background Art

[0002] Currently, the shift handle for harvesters is connected to the shifter shaft via a nut, located inside the control box, making it impossible to quickly remove the shift handle. Market research indicates that operators have a need to build a berth inside the harvester cab. When setting up a berth, the shift handle's height must be limited; a handle that's too high will affect the berth's placement. Furthermore, after removing the berth, the shift handle must be restored to its original height, effectively restoring its shifting function. This requires a split design for the shift handle, allowing for quick removal. However, current shift handles fail to meet this requirement, and the resulting berth's placement can affect actual use.

[0003] Based on this, it is necessary to develop a shift handle quick disassembly and assembly mechanism and a harvester having the same to solve the above technical problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a shift handle quick disassembly and assembly mechanism and a harvester having the same, which effectively overcomes the defects of the prior art.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: A shift handle quick disassembly mechanism includes a shift handle upper rod and a shift handle lower rod, wherein one end of the shift handle upper rod is detachably connected to one end of the shift handle lower rod via a quick disassembly assembly. A harvester includes the shift handle quick disassembly mechanism.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, one end of the upper rod of the shift handle is provided with a socket, and one end of the lower rod of the shift handle is inserted into the socket, and the two are assembled through a quick disassembly and assembly component.

[0008] Furthermore, the above-mentioned quick disassembly and assembly assembly includes a circular knurled sleeve, an elastic member, a plurality of balls and a limit member, the outer surface of one end of the upper rod of the above-mentioned shift handle is coaxially provided with a first annular groove, the wall surface of the above-mentioned first annular groove is coaxially provided with a second annular groove with a diameter smaller than the first annular groove, the above-mentioned second annular groove extends to one end portion of the upper rod of the above-mentioned shift handle, one end of the above-mentioned knurled sleeve is sleeved on the wall surface of the above-mentioned first annular groove, the inner surface of the other end of the above-mentioned knurled sleeve is protrudingly provided with an annular limit portion, the above-mentioned limit portion is embedded in the above-mentioned second annular groove, the above-mentioned elastic member is connected between the end wall of the above-mentioned first annular groove and one end wall of the limit portion, and an accommodating groove is defined between the inner surface of the other end of the above-mentioned knurled sleeve and the other end wall of the above-mentioned limit portion. The limiting member is embedded in the wall surface of the above-mentioned second annular groove near the end portion of the upper rod of the above-mentioned shift handle, and contacts and cooperates with the end portion of the above-mentioned limiting portion. The side wall of the above-mentioned second annular groove is circumferentially provided with a plurality of ball holes penetrating its side wall, and the plurality of the above-mentioned balls are mounted in the above-mentioned ball holes one by one. The outer surface of one end of the above-mentioned lower rod of the above-mentioned shift handle is circumferentially provided with a plurality of engaging grooves which are engaged with the above-mentioned balls one by one. The above-mentioned knurled sleeve is used to move to the end wall of the above-mentioned first annular groove under the action of external force, compress the above-mentioned elastic member, and separate the above-mentioned limiting portion from the above-mentioned balls, or after the external force is removed, the above-mentioned limiting portion is pushed to move to the inner wall surface and contact the above-mentioned balls under the elastic force of the above-mentioned elastic member.

[0009] Furthermore, the distance between the inner wall of the accommodating groove and the second annular groove is smaller than the diameter of the ball.

[0010] Furthermore, the inner opening of the ball hole is narrowed in a trumpet shape and has a size smaller than the diameter of the ball.

[0011] Furthermore, the above-mentioned limiting member is an unclosed annular member and is coaxially distributed with the above-mentioned second annular groove.

[0012] Furthermore, the elastic member is a spring and is sleeved in the second annular groove.

[0013] Furthermore, the above-mentioned socket includes a first positioning hole and a second combining hole arranged coaxially, the diameter of the above-mentioned second combining hole is larger than the diameter of the above-mentioned first positioning hole, and the above-mentioned second combining hole extends to one end portion of the above-mentioned upper rod of the shift handle, and the corresponding one end portion of the above-mentioned lower rod of the shift handle is coaxially provided with a first positioning column with a smaller diameter than the first positioning column, the above-mentioned first positioning column is inserted into the above-mentioned first positioning hole, and one end of the above-mentioned lower rod of the shift handle is inserted into the above-mentioned second combining hole, and there is a conical transition between the above-mentioned first positioning column and one end portion of the above-mentioned lower rod of the shift handle.

[0014] Furthermore, the other end wall of the limiting portion is configured as a tapered surface.

[0015] The beneficial effects of the present invention are: reasonable and ingenious structural design, rapid assembly and disassembly of the upper rod and the lower rod of the shift handle can be achieved, and the operation is very convenient.

[0016] The present invention also provides a harvester, comprising a shift handle quick disassembly and assembly mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an assembly diagram of the shift handle quick disassembly and assembly mechanism of the present invention; Figure 2 This is an exploded view of the quick disassembly and assembly mechanism of the shift handle of the present invention; Figure 3 It is a cross-sectional view of the structure of the shift handle upper rod and the shift handle lower rod in the shift handle quick disassembly and assembly mechanism of the present invention after being combined; Figure 4 This is a cross-sectional view of the structure of the shift handle upper rod and the shift handle lower rod in the shift handle quick disassembly and assembly mechanism of the present invention before being disassembled; Figure 5 This is a structural cross-sectional view of the shift handle upper rod and the shift handle lower rod in the shift handle quick disassembly and assembly mechanism of the present invention after being disassembled.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows: 1. Shift handle upper rod; 2. Shift handle lower rod; 3. Quick disassembly assembly; 11. Socket; 12. First ring groove; 13. Second ring groove; 21. Fitting groove; 31. Knurled sleeve; 32. Elastic member; 33. Ball; 34. Limiting member; 131. Ball hole; 311. Limiting portion; 312. Accommodating groove. DETAILED DESCRIPTION

[0019] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0020] Example 1 like Figure 1 、 2 As shown in Figures 3, 4, and 5, the shift handle quick disassembly mechanism of this embodiment includes a shift handle upper rod 1 and a shift handle lower rod 2. One end of the shift handle upper rod 1 is detachably connected to one end of the shift handle lower rod 2 through a quick disassembly component 3.

[0021] The shift handle quick disassembly mechanism of the present embodiment has a split-type structure, comprising an upper shift handle rod 1 and a lower shift handle rod 2. The lower end of the lower shift handle rod 2 is connected to the shifter shaft inside the control box, and its upper end extends out of the control box. The lower end of the upper shift handle rod 1 and the upper end of the lower shift handle rod 2 are connected by a quick disassembly assembly 3, enabling quick and convenient disassembly and assembly. When building a berth or other similar needs, it is necessary to limit the height of the shift handle, that is, if the shift handle is too high, it will affect the berth's laying effect. The upper shift handle rod 1 can be quickly removed by the quick disassembly assembly 3. After removing the berth, it is necessary to restore the shift handle to its original height. The upper shift handle rod 1 can be assembled with the lower shift handle rod 2 by the quick disassembly assembly 3. Overall, the structural design is reasonable and ingenious, enabling quick disassembly and assembly of the upper and lower shift handle rods, making operation very convenient. The shift handle can be changed in length by quick insertion and removal.

[0022] As a preferred embodiment, one end of the shift handle upper rod 1 is provided with a socket 11 , one end of the shift handle lower rod 2 is inserted into the socket 11 , and the two are assembled through a quick disassembly assembly 3 .

[0023] In the above embodiment, the upper shift handle rod 1 and the lower shift handle rod 2 adopt a plug-in assembly structure without threaded connection, and the disassembly and assembly of the two are convenient and quick.

[0024] As a preferred embodiment, the above-mentioned quick disassembly and assembly component 3 includes a circular knurled sleeve 31, an elastic member 32, a plurality of balls 33 and a limit member 34. The outer surface of one end of the above-mentioned shift handle upper rod 1 is coaxially provided with a first annular groove 12, and the wall surface of the above-mentioned first annular groove 12 is coaxially provided with a second annular groove 13 with a diameter smaller than it. The above-mentioned second annular groove 13 extends to one end portion of the above-mentioned shift handle upper rod 1, one end of the above-mentioned knurled sleeve 31 is sleeved on the wall surface of the above-mentioned first annular groove 12, and the inner surface of the other end of the above-mentioned knurled sleeve 31 is protrudingly provided with an annular limit portion 311, and the above-mentioned limit portion 311 is embedded in the above-mentioned second annular groove 13, the above-mentioned elastic member 32 is connected between the end wall of the above-mentioned first annular groove 12 and one end wall of the limit portion 311, and a capacity is defined between the inner surface of the other end of the above-mentioned knurled sleeve 31 and the other end wall of the above-mentioned limit portion 311. The receiving groove 312, the above-mentioned limiting member 34 is embedded in the wall surface of the above-mentioned second annular groove 13 near the end of one end of the above-mentioned shift handle upper rod 1, and contacts and cooperates with the end of the above-mentioned limiting portion 311. The side wall of the above-mentioned second annular groove 13 is circumferentially provided with a plurality of ball holes 131 penetrating its side wall, and the multiple above-mentioned balls 33 are installed in the above-mentioned ball holes 131 one by one. The outer surface of one end of the above-mentioned shift handle lower rod 2 is circumferentially provided with a plurality of engaging grooves 21 that engage with the above-mentioned balls 33 one by one. The above-mentioned knurled sleeve 31 is used to move to the end wall of the above-mentioned first annular groove 12 under the action of external force, and compress the above-mentioned elastic member 32, and separate the above-mentioned limiting portion 311 from the above-mentioned balls 33, or after the external force is removed, the above-mentioned limiting portion 311 is pushed to move to the inner wall surface and contact the above-mentioned balls 33 under the elastic force of the above-mentioned elastic member 32.

[0025] In the above embodiment, the structure after the upper lever 1 of the shift handle and the lower lever 2 of the shift handle are assembled and combined is as follows: Figure 3As shown, in this state, one end of the shift handle lower rod 2 is inserted into the insertion hole 11 at one end of the shift handle upper rod 1, and at the same time, the ball 33 located in the ball hole 131 partially extends from the inner hole of the ball hole 131 and is embedded in the fitting groove 21 on the outer surface of one end of the shift handle lower rod 2. At the same time, the part of the ball 33 located at the outer hole of the ball hole 131 is against the inner surface of the limiting portion 311. At the same time, the elastic member 32 is in an extended state, and the elastic force acts on the end wall of one end of the limiting portion 311, so that the other end wall of the limiting portion 311 is against the limiting member 34, thereby maintaining the state of the ball 33 being well embedded in the fitting groove 21, that is, the shift handle upper rod 1 and the shift handle lower rod 2 are connected through the knurled sleeve 3 1 The limiting ball 33 is well fitted into the fitting groove 21, thereby achieving a stable assembly between the upper rod 1 of the shift handle and the lower rod 2 of the shift handle. When the lower rod 2 of the shift handle needs to be removed, an external force acts on the knurled sleeve 31, causing the knurled sleeve 31 to move toward the other end of the lower rod 1 of the shift handle and compress the elastic member 32. The limiting portion 311 will move along the surface of the ball 33 with the movement of the knurled sleeve 31 until the accommodating groove 312 moves to the current position of the ball 33. At this time, the limiting portion 311 is separated from the ball 33 and no longer applies an inward squeezing force (restriction) to the ball 33. Therefore, the ball 33 is "released", and one end of the lower rod 2 of the shift handle can be pulled out of the socket 11 at one end of the upper rod 1 of the shift handle. In other words, the entire removal process only requires an external force to move the knurled sleeve 31. After removal, the external force is removed, the elastic member 32 returns to its original state, and the elastic force drives the knurled sleeve 31 to move back to its original position (such as Figure 5 (as shown) until the other end wall of the stopper 311 again abuts against the stopper 34. During installation, similar external force is applied to move the knurled sleeve 31 toward the other end of the shift handle upper rod 1, compressing the elastic member 32. Once fully inserted, the knurled sleeve 31 is released. The elastic force of the elastic member 32 causes the knurled sleeve 31 to naturally return to its original position, allowing the stopper 311 to "compress" the ball 33 again, ensuring a secure fit within the engagement groove 21. The overall structural design is highly ingenious, making assembly and disassembly extremely simple and quick.

[0026] In this embodiment, the fitting groove 21 is a hemispherical groove adapted to the shape of the ball 33 .

[0027] In this embodiment, the distance between the inner wall of the receiving groove 312 and the second annular groove 13 is smaller than the diameter of the ball 33. This design prevents the ball 33 from falling out of the receiving groove 312 and always keeps a part of it in the ball hole 131.

[0028] As a preferred embodiment, the inner opening of the ball hole 131 (a circular hole) is narrowed in a trumpet shape, and the diameter of the inner opening (circular) of the ball hole 131 is smaller than the diameter of the ball 33 .

[0029] In the above embodiment, the narrowing setting of the inner opening of the ball hole 131 prevents the ball 33 from falling out of the inner opening of the ball hole 131. That is to say, even after the upper rod 1 of the shift handle is removed, the ball 33 will always be in the ball hole 131 and move in the ball hole 131, and will not fall out of the ball hole 131 from the inside or outside.

[0030] In this embodiment, the stopper 34 is an unclosed annular member and is coaxially distributed with the second annular groove 13. During installation, the unclosed portion of the stopper 34 (i.e., an open ring) is opened by external force and snapped into the second annular groove 13.

[0031] In this embodiment, the elastic member 32 is a spring of an appropriate type and is sleeved in the second annular groove 13 .

[0032] As a preferred embodiment, the above-mentioned socket 11 includes a coaxially arranged first positioning hole and a second combining hole, the diameter of the above-mentioned second combining hole is larger than the diameter of the above-mentioned first positioning hole, and the above-mentioned second combining hole extends to one end portion of the above-mentioned shift handle upper rod 1, and the corresponding one end portion of the above-mentioned shift handle lower rod 2 is coaxially provided with a first positioning column (represented by c in the figure) with a diameter smaller than the first positioning column, the above-mentioned first positioning column is inserted into the above-mentioned first positioning hole, and one end of the above-mentioned shift handle lower rod 2 is inserted into the above-mentioned second combining hole, and there is a conical transition between the above-mentioned first positioning column and one end portion of the above-mentioned shift handle lower rod 2.

[0033] In the above embodiment, the "stepped" structural design of the socket 11 makes it small inside and large outside (that is, the diameter is small at the deep end and large at the hole mouth). Combined with the design of the first positioning column at one end of the lower rod 2 of the shift handle, during the process of inserting one end of the lower rod 2 of the shift handle into the socket 11, since the diameter of the first positioning column is smaller than the diameter of the second combining hole, the first positioning column can easily enter the second combining hole, and the insertion is faster and more convenient.

[0034] In this embodiment, the other end wall of the stopper 311 is configured as a tapered surface. Before the knurled sleeve 31 is released, this tapered surface contacts the ball 33 partially within the receiving groove 312. When the knurled sleeve 31 is released, the elastic force of the elastic member 32 acts on the end wall of the stopper 311, causing the ball 33 to move relative to the tapered surface until it abuts (or contacts) the inner surface of the stopper 311. This tapered surface design facilitates the relative rolling of the ball 33 along its surface without causing any obstruction.

[0035] Example 2 The harvester of this embodiment includes the shift handle quick disassembly and assembly mechanism of Example 1.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0038] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0039] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0040] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0041] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A quick disassembly and assembly mechanism for a shift handle, characterized by: It comprises a shift handle upper rod (1) and a shift handle lower rod (2), wherein one end of the shift handle upper rod (1) is detachably connected to one end of the shift handle lower rod (2) via a quick disassembly assembly (3).

2. The shift handle quick disassembly and assembly mechanism according to claim 1, characterized in that: One end of the shift handle upper rod (1) is provided with a socket (11), and one end of the shift handle lower rod (2) is inserted into the socket (11), and the two are assembled via a quick disassembly assembly (3).

3. The shift handle quick disassembly and assembly mechanism according to claim 2, characterized in that: The quick disassembly assembly (3) comprises a circular knurled sleeve (31), an elastic member (32), a plurality of balls (33) and a limiting member (34); a first annular groove (12) is coaxially provided on the outer surface of one end of the shift handle upper rod (1); a second annular groove (13) having a smaller diameter than the first annular groove (12) is coaxially provided on the wall surface of the first annular groove (12); the second annular groove (13) extends to one end of the shift handle upper rod (1); one end of the knurled sleeve (31) is sleeved on the wall surface of the first annular groove (12); an annular limiting portion (311) is protrudingly provided on the inner surface of the other end of the knurled sleeve (31); the limiting portion (311) is embedded in the second annular groove (13); the elastic member (32) is connected between the end wall of the first annular groove (12) and one end wall of the limiting portion (311); an accommodating groove (311) is defined between the inner surface of the other end of the knurled sleeve (31) and the other end wall of the limiting portion (311). 12), the limiting member (34) is embedded in the wall of the second annular groove (13) near the end of the upper rod (1) of the shift handle, and contacts and cooperates with the end of the limiting portion (311), and a plurality of ball holes (131) are provided on the side wall of the second annular groove (13) along the circumferential direction and penetrate the side wall thereof, and a plurality of the balls (33) are installed in the ball holes (131) in a one-to-one correspondence, and the outer surface of one end of the lower rod (2) of the shift handle is spaced circumferentially. A plurality of engaging grooves (21) corresponding to the balls (33) are provided, and the knurled sleeve (31) is used to move to abut against the end wall of the first annular groove (12) under the action of an external force, and compress the elastic member (32), so that the limiting portion (311) is separated from the balls (33), or after the external force is removed, the elastic force of the elastic member (32) pushes the limiting portion (311) to move to the inner wall surface and contact the balls (33).

4. The shift handle quick disassembly and assembly mechanism according to claim 3, characterized in that: The distance between the inner wall of the accommodating groove (312) and the second annular groove (13) is smaller than the diameter of the ball (33).

5. The shift handle quick disassembly and assembly mechanism according to claim 3, characterized in that: The inner opening of the ball hole (131) is narrowed in a trumpet shape and has a size smaller than the diameter of the ball (33).

6. The shift handle quick disassembly and assembly mechanism according to claim 3, characterized in that: The limiting member (34) is an unclosed annular member and is coaxially distributed with the second annular groove (13).

7. The shift handle quick disassembly and assembly mechanism according to claim 3, characterized in that: The elastic member (32) is a spring and is sleeved in the second annular groove (13).

8. The shift handle quick disassembly and assembly mechanism according to claim 3, characterized in that: The insertion hole (11) includes a first positioning hole and a second combining hole arranged coaxially, the diameter of the second combining hole is larger than the diameter of the first positioning hole, and the second combining hole extends to one end of the shift handle upper rod (1), and a first positioning column with a smaller diameter than the first positioning column is coaxially provided at one end of the corresponding shift handle lower rod (2), the first positioning column is inserted into the first positioning hole, and one end of the shift handle lower rod (2) is inserted into the second combining hole, and a conical transition is formed between the first positioning column and one end of the shift handle lower rod (2).

9. The shift handle quick disassembly and assembly mechanism according to claim 3, characterized in that: The other end wall of the limiting portion (311) is configured as a conical surface.

10. A harvester, characterized in that: It comprises the shift handle quick disassembly and assembly mechanism according to any one of claims 1 to 9.

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