Triggering assembly, steering control device and agricultural machine

Abstract

The invention discloses a trigger assembly, a steering control device and an agricultural machine, and the trigger assembly comprises a main machine housing, one side of which is provided with a mounting hole; the shifting piece is arranged in a manner of penetrating through the mounting hole; the sealing ring is tightly arranged outside the shifting piece in a sleeving manner; and the gland is fixed on the host shell, and the peripheral material of the sealing ring is tightly pressed between the host shell and the gland. In the sealing structure of the trigger assembly, the sealing ring is tightly sleeved outside the shifting piece, meanwhile, the gland is provided, and the gland and the main machine shell are used for tightly pressing materials on the periphery of the sealing ring, so that the sealing ring can always keep tight contact with the main machine shell, and long-term effective water prevention is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic switch control, and in particular to a trigger component, a steering control device and an agricultural machine. Background Art

[0002] At present, the paddles on the market are commonly used in car steering wheels or other products that require paddle switches. The paddle switch is generally composed of a lever mechanical structure and an electronic switch. By applying an external force to the lever, the lever is pried to touch the electronic switch, triggering the switch to close. To facilitate manual control, the paddle needs to pass through the housing of the steering wheel control device. At the same time, the perforation opened on the housing needs to be larger than the outer diameter of the paddle to provide sufficient space for the paddle to swing. In order to achieve waterproofing, the existing practice is usually to put a rubber sleeve on the rod of the paddle, and the rubber sleeve is stretched outward to contact the perforated inner wall of the housing to achieve sealing, but the sealing structure has certain defects. For example, as time goes by, the aging of the rubber will cause the supporting force to decrease, resulting in deformation and water leakage. Summary of the invention

[0003] The purpose of the embodiments of the present invention is to provide a trigger assembly, a steering control device and an agricultural machine, which can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] In one aspect, a trigger component is provided, comprising:

[0006] The mainframe housing has a mounting hole on one side;

[0007] A plectrum, arranged through the mounting hole;

[0008] A sealing ring, tightly sleeved outside the paddle;

[0009] The pressure cover is fixed on the main engine housing, and the peripheral material of the sealing ring is pressed tightly between the main engine housing and the pressure cover.

[0010] Optionally, the sealing ring is provided with a sealing hole, the paddle is provided with a sealing ring groove matching the sealing hole, the sealing ring is sleeved on the outside of the paddle through the sealing hole, and the material around the sealing hole is embedded in the sealing ring groove.

[0011] Optionally, the paddle includes a paddle rod and a handle, the paddle rod passes through the mounting hole, and the handle is connected to one end of the paddle rod outside the host housing.

[0012] Optionally, an outwardly protruding blocking piece is provided on the lever near the handle, and the sealing ring groove is formed between the blocking piece and the handle.

[0013] Optionally, the handle and the blocking piece clamp the material on the paddle located around the sealing hole.

[0014] Optionally, the sealing ring includes an outer ring portion and a bulge portion, the bulge portion is connected to the inner circumference of the outer ring portion, and the bulge portion protrudes toward one side relative to the outer ring portion; the outer ring portion is pressed between the main body shell and the pressure cover, and the sealing hole is arranged on the bulge portion, so that the paddle passes through the bulge portion.

[0015] Optionally, the pressure cover is provided with a first avoidance hole, and the convex portion is embedded in the first avoidance hole.

[0016] Optionally, a rotating mounting platform is provided on a side of the host housing corresponding to the mounting of the paddle, the paddle is connected to a rotating shaft, and the rotating shaft is rotatably mounted on the rotating mounting platform.

[0017] Optionally, the rotating mounting platform is integrally formed on the main body shell, and the mounting hole passes through the rotating mounting platform.

[0018] Optionally, the rotating mounting platform is provided with rotating shaft grooves on two opposite side walls of the mounting hole, and the rotating shaft grooves penetrate through a side of the rotating mounting platform facing the pressure cover, and the installation of the pressure cover restricts the rotating shaft from being separated from the rotating shaft grooves.

[0019] Optionally, a shaft pressing plate is provided between the rotating mounting platform and the sealing ring, and the pressure cover indirectly presses the shaft pressing plate through the sealing ring, so that the shaft pressing plate restricts the shaft within the shaft groove.

[0020] Optionally, a pressure plate slot cooperating with the rotating shaft pressure plate is provided on one side of the rotating mounting platform facing the pressure cover, and the rotating shaft pressure plate is mounted in the pressure plate slot.

[0021] Optionally, the rotating shaft and the paddle are an integral structure.

[0022] Optionally, the rotating mounting platform is convexly arranged relative to the outer surface of the main housing, and the side of the pressure cover facing the main housing is provided with a mounting groove corresponding to the shape of the rotating mounting platform, the rotating mounting platform is embedded in the mounting groove, and the bottom surface of the mounting groove is crimped with the sealing ring.

[0023] Optionally, at least two parallel mounting holes are provided on the rotating mounting platform, each mounting hole corresponds to one paddle for mounting, and all the paddles share one sealing ring and one pressure cover.

[0024] Optionally, a reset spring is provided in the host housing, and the reset spring abuts against the paddle to push the paddle to reset so that the paddle deviates from the position of triggering the electronic switch.

[0025] On the other hand, a steering control device is provided, comprising the trigger assembly mentioned above.

[0026] On the other hand, an agricultural machine is provided, comprising the above-mentioned steering control device.

[0027] The beneficial effects of the present application are as follows: the present invention provides a trigger assembly, a steering control device and an agricultural machine. In the sealing structure of the trigger assembly, a sealing ring is tightly sleeved outside the paddle, and a pressure cover is provided. The material around the sealing ring is compressed by the pressure cover and the main body shell, so that the sealing ring can always maintain close contact with the main body shell, thereby achieving long-term and effective waterproofing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present application is further described in detail below based on the drawings and embodiments.

[0029] Figure 1 This is a schematic diagram of the structure of the internal perspective of the trigger component described in the embodiment of the present application;

[0030] Figure 2 This is a schematic diagram of the structure of the trigger component from an external perspective according to an embodiment of the present application;

[0031] Figure 3 This is one of the explosion diagrams of the trigger assembly described in the embodiment of the present application;

[0032] Figure 4 This is the second explosion diagram of the trigger assembly described in the embodiment of the present application;

[0033] Figure 5 A cross-sectional view of the trigger assembly described in an embodiment of the present application;

[0034] Figure 6 for Figure 5 A magnified schematic diagram of the middle A area;

[0035] Figure 7 A partial enlarged view of the host housing described in the embodiment of the present application;

[0036] Figure 8 It is an exploded schematic diagram of the local structure of the trigger component according to the embodiment of the present application;

[0037] Fig. 9 This is a schematic diagram of the structure of the lever according to the embodiment of the present application;

[0038] Fig.10 This is a schematic diagram of the structure of the rotating shaft pressure plate described in the embodiment of the present application;

[0039] Fig.11 This is a schematic diagram of the structure of the sealing ring described in the embodiment of the present application;

[0040] Fig.12 This is a schematic diagram of the structure of the gland described in the embodiment of the present application.

[0041] In the figure:

[0042] 1. Mainframe housing; 11. Mounting hole; 12. Rotating mounting table; 13. Shaft slot; 14. Pressure plate slot; 16. Spring fixing seat; 2. Paddle; 21. Paddle lever; 211. Blocking piece; 22. Handle; 23. Sealing ring groove; 24. Shaft; 3. Sealing ring; 31. Outer ring; 32. Bump; 33. Sealing hole; 4. Pressure cover; 41. Mounting slot; 42. First avoidance hole; 5. Shaft pressure plate; 51. Second avoidance hole; 52. Shaft pressure protrusion; 6. Circuit board; 61. Electronic switch; 7. Reset spring. DETAILED DESCRIPTION

[0043] In order to make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0044] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0046] At present, the paddles on the market are commonly used in car steering wheels or other products that require paddle switches. The paddle switch is generally composed of a lever mechanical structure and an electronic switch. By applying an external force to the lever, the lever is pried to touch the electronic switch, triggering the switch to close. To facilitate manual control, the paddle needs to pass through the housing of the steering wheel control device. At the same time, the perforation opened on the housing needs to be larger than the outer diameter of the paddle to provide sufficient space for the paddle to swing. In order to achieve waterproofing, the existing practice is usually to put a rubber sleeve on the rod of the paddle, and the rubber sleeve is stretched outward to contact the perforated inner wall of the housing to achieve sealing, but the sealing structure has certain defects. For example, as time goes by, the aging of the rubber will cause the supporting force to decrease, resulting in deformation and water leakage.

[0047] In order to overcome the above technical problems, the present embodiment provides a new trigger assembly, which eliminates the traditional method of using the elastic phase of the rubber sleeve itself to expand the seal, and instead adopts a method of strengthening and fixing the sealing ring arranged on the outer cover of the paddle, so that the sealing ring can always maintain a tight seal on the mounting hole on the host shell for mounting the paddle, effectively avoiding the problem that the aging of the rubber affects the tightness of the contact with the host shell and thus affects the waterproof ability.

[0048] The trigger assembly of this embodiment can be applied to various vehicle tools, and can be specifically used in a steering control device of a vehicle tool.

[0049] like Figure 1-12 As shown, the trigger assembly of this embodiment includes a main body shell 1, a paddle 2, a sealing ring 3 and a pressure cover 4. A mounting hole 11 is provided on one side of the main body shell 1; the paddle 2 is arranged to pass through the mounting hole 11; the sealing ring 3 is tightly sleeved on the outside of the paddle 2; the pressure cover 4 is fixed on the main body shell 1, and the peripheral material of the sealing ring 3 is pressed between the main body shell 1 and the pressure cover 4.

[0050] Specifically, the trigger assembly of this embodiment includes a host housing 1. The host housing 1 is the housing of a specific device when the trigger assembly of this embodiment is applied to the device. For example, when it is applied to a steering control device, the host housing 1 is the housing of the device of the steering control device. The inner shell of the host housing 1 is installed with components such as circuit boards to assist in controlling the vehicle. In the trigger assembly, the paddle 2 serves as an intermediate transmission control component, one end of which is located outside the host housing 1 and can be manually controlled; the other end is located inside the host housing 1 and can contact the electronic switch 61 on the internal circuit board 6, so that the paddle 2 can be manually moved and the paddle 2 can touch the electronic switch 61. Therefore, a mounting hole 11 is provided on the host housing 1, so that the paddle 2 can pass through the host housing 1, and the two ends are respectively placed in the mounting structure inside and outside the host housing 1.

[0051] In order to ensure that the paddle 2 has sufficient space for movement, the aperture of the mounting hole 11 needs to be larger than the outer diameter of the paddle 2. Therefore, after the paddle 2 is installed, there will be a large gap between the paddle 2 and the hole wall of the mounting hole 11. In this solution, a sealing ring 3 is arranged on the outer sleeve of the paddle 2. The inner ring of the sealing ring 3 is in close contact with the outer wall of the paddle 2, and the outer ring material is pressed against the periphery of the mounting hole 11, thereby filling the gap between the paddle 2 and the hole wall of the mounting hole 11, thereby achieving the purpose of isolating the inside and outside of the host housing 1 at the mounting hole 11.

[0052] Reference Figure 6 In this embodiment, a pressure cover 4 is also provided, and a first avoidance hole 42 is also provided on the pressure cover 4 to allow the pick 2 to pass through. The periphery of the sealing ring 3 is pressed tightly between the pressure cover 4 and the main body housing 1, so as to achieve the purpose of strongly fixing the peripheral material of the sealing ring 3. It should be noted that Figure 6 In the structure shown, the sealing ring 3 is installed on the outside of the host housing 1, so the pressure cover 4 is arranged on the outside of the host housing 1 to compress the sealing ring 3. In practical applications, the sealing ring 3 can also be arranged on the inside of the host housing 1, and the pressure cover 4 corresponds to compressing the sealing ring 3 from the inside of the host housing 1.

[0053] Regarding the fixing of the gland 4, it is preferably a detachable fixing method, which has the advantage of convenient assembly and replacement of the sealing ring 3. For example, it can be fixed by snap fastening or screw locking. Specifically, a plurality of threaded holes can be provided on the side of the host housing 1 facing the gland 4, and a plurality of positioning holes can be provided on the sealing ring 3 and the gland 4 respectively. Screws are used to penetrate the positioning holes on the gland 4 and the sealing ring 3 and then screwed and locked on the threaded holes on the host housing 1, so as to achieve reliable fixing of the gland 4 and the sealing ring 3.

[0054] In summary, based on the trigger assembly structure of this embodiment, a sealing ring 3 is tightly fitted outside the paddle 2, and a pressure cover 4 is provided. The material around the sealing ring 3 is compressed by the pressure cover 4 and the host housing 1, so that the sealing ring 3 can always maintain close contact with the host housing 1, thereby achieving long-term and effective waterproofing.

[0055] In one embodiment, in combination Figure 6 , Figure 8 and Fig. 9 The sealing ring 3 is provided with a sealing hole 33 , and the paddle 2 is provided with a sealing ring groove 23 matching the sealing hole 33 . The sealing ring 3 is sleeved on the outside of the paddle 2 through the sealing hole 33 , and the material around the sealing hole 33 is embedded in the sealing ring groove 23 .

[0056] The outer peripheral material of the sealing ring 3 is pressed and fixed, which can effectively prevent the sealing ring 3 material from aging and affecting the waterproof performance between the sealing ring 3 and the host housing 1. The inner periphery of the sealing ring 3 and the paddle 2 adopt an inlaid structure, which can also effectively improve the tightness of the sealing ring 3 and the paddle 2 and prevent the sealing ring 3 material from aging and affecting the waterproof performance between the sealing ring 3 and the paddle 2.

[0057] Therefore, in this solution, a sealing ring groove 23 is provided circumferentially on the plectrum 2, and the material of the inner circumference of the sealing ring 3 is embedded in the sealing ring groove 23, and the groove walls on both sides of the sealing ring groove 23 are used to press the inner and outer sides of the sealing ring 3, so that the plectrum 2 and the sealing ring 3 are kept in close contact and the waterproof capability is ensured. In addition, based on the embedded structure of the plectrum 2 and the sealing ring 3, the problem of relative slippage between the plectrum 2 and the sealing ring 3 can be avoided.

[0058] In one embodiment, referring to Figure 6 The paddle 2 includes a lever 21 and a handle 22 . The lever 21 passes through the mounting hole 11 . The handle 22 is connected to one end of the lever 21 outside the host housing 1 .

[0059] The paddle 2 is provided with a structure composed of a lever 21 and a handle 22, and the handle 22 is provided to facilitate manual operation.

[0060] The lever 21 and the handle 22 are separately assembled. During installation, the lever 21 can be fixed by using the sealing ring 3, the pressure cover 4 and other components first, and then the handle 22 can be fixed to the end of the lever 21 to avoid the problem that the handle 22 interferes with the installation of the pressure cover 4. Therefore, the structure of this solution has the advantage of convenient installation.

[0061] Reference Figure 8 Preferably, one end of the lever 21 connected to the handle 22 has a connector, and the handle 22 has a corresponding connector groove. The connector is inserted into the connector groove, and then a screw is inserted from the side of the handle 22 facing away from the lever 21 for locking.

[0062] In one embodiment, a protruding blocking piece 211 is disposed on the lever 21 near the handle 22 , and a sealing ring groove 23 is formed between the blocking piece 211 and the handle 22 .

[0063] Obviously, this structure can effectively improve the clamping degree of the paddle 2 on the sealing ring 3, which is beneficial to improving the waterproof ability and facilitating the installation of the sealing ring 3.

[0064] Specifically, based on the split combination structure of the lever 21 and the handle 22, when installing the sealing ring 3, the end of the lever 21 used for connecting the handle 22 can be first passed through the sealing hole 33 on the sealing ring 3, so that the sealing ring 3 abuts against the baffle 211, and then the handle 22 is installed, and the sealing ring 3 is pressed by the end surface of the handle 22. Since the installation of the sealing ring 3 does not need to pass through the baffle 211 or the handle 22, the radial dimension of the baffle 211 and the dimension of the end surface of the handle 22 contacting the sealing ring 3 can be set to be larger than the dimension of the sealing hole 33 of the sealing ring 3, so that the sealing ring 3 has sufficient contact area with the baffle 211 and the handle 22, so as to improve the tightness of the contact between the sealing ring 3 and the lever 2.

[0065] In one embodiment, the handle 22 and the blocking piece 211 clamp the material of the paddle 2 around the sealing hole 33 .

[0066] Since the handle 22 is a post-installed component, when installing the handle 22, the installation distance of the handle 22 and the spacing between the end surface of the handle 22 and the baffle 211 can be adjusted to adjust the clamping degree of the sealing ring 3. Therefore, similar to the form in which the outer ring of the sealing ring 3 is clamped by the gland 4, the inner ring of the sealing ring 3 can be clamped by the handle 22 and the baffle 211 to achieve strong fixation of the inner ring of the sealing ring 3, avoiding the problem that the aging of the sealing ring 3 material affects the tightness of the contact with the surface of the plectrum 2.

[0067] Therefore, this structure can effectively improve the tightness and stability of the connection between the sealing ring 3 and the paddle 2 , and effectively reduce the degree to which the sealing performance of the structure is affected by the aging of the sealing ring 3 material.

[0068] In one embodiment, referring to Figure 6 and Fig.11 The sealing ring 3 includes an outer ring portion 31 and a convex portion 32. The convex portion 32 is connected to the inner circumference of the outer ring portion 31, and the convex portion 32 protrudes toward one side relative to the outer ring portion 31; the outer ring portion 31 is pressed between the host housing 1 and the pressure cover 4, and the sealing hole 33 is set on the convex portion 32, so that the paddle 2 passes through the convex portion 32.

[0069] In fact, the paddle 2 is a movable part, and during use, it will move relative to the host housing 1. As can be seen from the above, the outer ring of the sealing ring 3 is fixed to the host housing 1, and the inner ring is fixed to the paddle 2. Therefore, during the movement of the paddle 2, the inner ring of the sealing ring 3 will be deformed relative to the outer ring material.

[0070] In this embodiment, the sealing ring 3 is configured to consist of an outer ring portion 31 and a convex portion 32. The convex portion 32 protrudes from one side relative to the outer ring portion 31, and a zigzag structure is formed between the outer ring portion 31 and the convex portion 32, which can provide a larger space for the relative deformation of the outer ring portion 31 and the convex portion 32. During installation, the outer ring portion 31 is clamped between the host housing 1 and the gland 4, and the paddle 2 clamps the convex portion 32. When the paddle 2 moves relative to the host housing 1, it will drive the convex portion 32 to move relative to the outer ring portion 31. Obviously, the deformation of the convex portion 32 relative to the outer ring portion 31 has a larger deformation space, which can prevent the sealing ring 3 from being torn and damaged by the movable paddle 2; the sealing ring 3 has a smaller deformation resistance, which reduces the resistance of the paddle 2 to manual movement.

[0071] In one embodiment, in combination Figure 6 and Fig.12 The pressure cover 4 is provided with a first avoidance hole 42 , and the convex portion 32 is embedded in the first avoidance hole 42 .

[0072] By using the first avoidance hole 42 of the pressure cover 4 to accommodate the bulge portion 32, the pressure cover 4 can be pressed onto the outer ring portion 31 without being pressed onto the bulge portion 32. Sufficient space is reserved between the pressure cover 4 and the main housing 1 for the bulge portion 32 to allow for deformation of the bulge portion 32.

[0073] In one embodiment, a rotating mounting platform 12 is provided on one side of the host housing 1 corresponding to the mounting of the paddle 2 . The paddle 2 is connected to a rotating shaft 24 , and the rotating shaft 24 is rotatably mounted on the rotating mounting platform 12 .

[0074] Specifically, the paddle 2 is generally rotatably installed, and the paddle 2 is manually moved to deflect, so that the paddle 2 can be pressed against the electronic switch 61 to complete the triggering operation. In this solution, a rotating mounting platform 12 is provided on one side of the host housing 1, which can cooperate with the rotating shaft 24 to realize the rotational installation of the paddle 2, thereby realizing the structure of the rotational control of the paddle 2.

[0075] It can be understood that, according to requirements, the rotating mounting platform 12 can be arranged on the inner side of the main body shell 1 or on the outer side of the main body shell 1 .

[0076] In one embodiment, the rotating mounting platform 12 is integrally formed on the main housing 1 , and the mounting hole 11 passes through the rotating mounting platform 12 .

[0077] The conventional solution generally adds a rotating support inside the main body housing 1 for mounting the paddle. Compared with the conventional solution, the present solution forms the rotating mounting platform 12 integrally on the main body housing 1, which is equivalent to eliminating the process of separately processing the rotating mounting platform 12 and assembling the rotating mounting platform 12 on the main body housing 1 during assembly, thereby reducing the number of component parts, simplifying the assembly process, improving reliability, and reducing costs. The structure in which the main body housing 1 and the rotating mounting platform 12 are integrally formed can be formed by injection molding, casting, die casting, or CNC processes.

[0078] In one embodiment, referring to Figure 7 The rotating mounting platform 12 is provided with a shaft groove 13 on two opposite side walls of the mounting hole 11 . The shaft groove 13 runs through the side of the rotating mounting platform 12 facing the pressure cover 4 . The installation of the pressure cover 4 limits the shaft 24 from being separated from the shaft groove 13 .

[0079] Based on the structure that the rotating mounting platform 12 is integrally formed on the main housing 1, this solution sets the shaft groove 13 on the two opposite side walls of the mounting hole 11, and the shaft groove 13 is penetrated on the side facing the pressure cover 4, so that during installation, the entire shaft 24 can be directly placed into the shaft groove 13 in the radial direction, and then the pressure cover 4 is covered to block the notch of the shaft groove 13 to achieve the rotation installation of the shaft 24. Obviously, this structure does not need to penetrate the shaft groove 13 to the outer wall of the rotating mounting platform 12 along the axial direction of the shaft 24, and the shaft 24 is restricted to the inner side of the sealing ring 3, so there is no need to consider the waterproof problem of the hole-shaft matching clearance between the shaft 24 and the shaft groove 13. Therefore, this structure is conducive to enhancing waterproofness.

[0080] In one embodiment, a shaft pressing plate 5 is provided between the rotating mounting platform 12 and the sealing ring 3 , and the pressure cover 4 indirectly presses the shaft pressing plate 5 through the sealing ring 3 , so that the shaft pressing plate 5 restricts the shaft 24 in the shaft groove 13 .

[0081] Specifically, the sealing ring 3 is made of a flexible material, and the rotating shaft 24 is located between the sealing ring 3 and the rotating shaft groove 13. It is difficult to ensure the stability of the rotating shaft 24 by directly using the sealing ring 3 to restrict the rotating shaft 24. Therefore, in this solution, a hard rotating shaft pressing plate 5 is arranged inside the sealing ring 3, and the rotating shaft pressing plate 5 cooperates with the groove wall of the rotating shaft groove 13 to support the rotating shaft 24, so as to ensure the stable rotation of the rotating shaft 24.

[0082] Preferably, refer to Fig.10The shaft pressing plate 5 is provided with a second avoidance hole 51 that allows the lever 21 to pass through. Similarly, the second avoidance hole 51 is larger than the outer diameter of the lever 21 to reserve enough space for the swinging activity of the lever 21. The shaft pressing protrusions 52 are respectively provided on both sides of the second avoidance hole 51 on the shaft pressing plate 5. The shaft pressing protrusions 52 can be embedded in the shaft groove 13, and the end surface of the shaft pressing protrusions 52 is an arc surface that matches the outer circle of the shaft 24. After the shaft pressing plate 5 is installed, the shaft pressing protrusions 52 are embedded in the shaft groove 13 and pressed against the surface of the shaft 24, and the arc-shaped end surface is exactly enclosed with the groove wall of the shaft groove 13 to form a circular groove, which can exactly match the shaft 24 to ensure the smooth and stable rotation process of the shaft 24.

[0083] In one embodiment, referring to Figure 7 A pressure plate slot 14 cooperating with the shaft pressure plate 5 is provided on the side of the rotating mounting platform 12 facing the pressure cover 4 , and the shaft pressure plate 5 is clamped into the pressure plate slot 14 .

[0084] The shaft pressing plate 5 is installed with an embedded structure relative to the sealing ring 3, so that the outer ring material of the sealing ring 3 can be in close contact with the end surface of the rotating mounting platform 12, thereby preventing the shaft pressing plate 5 from interfering with the installation of the sealing ring 3. At the same time, the shaft pressing plate 5 is restricted by the groove wall of the pressing plate clamping groove 14, so that the stability of the installation of the shaft pressing plate 5 can be improved.

[0085] Preferably, combined Figure 7 and Fig.10 The rotating mounting platform 12 is provided with a first threaded connection hole on the bottom surface of the pressure plate slot 14, and the rotating shaft pressure plate 5 is provided with a second connection hole correspondingly. After the rotating shaft 24 is placed in the rotating shaft slot 13, the rotating shaft pressure plate 5 is pressed into the pressure plate slot 14, and a bolt is used to penetrate the second connection hole and then connect the first connection hole to realize the pre-fixation of the rotating shaft pressure plate 5 on the rotating mounting platform 12. Compared with the use of a flexible sealing ring 3 to compress the rotating shaft pressure plate 5 alone, this fixing form is a strong fixation, which can improve the reliability of the installation of the rotating shaft pressure plate 5, and further improve the reliability of the rotating installation of the rotating shaft 24.

[0086] In one embodiment, the rotating shaft 24 and the paddle 2 are an integral structure.

[0087] Traditional paddle switches are generally composed of paddles, connectors, rotating shafts, fixed seats, springs, switch electronic boards and other components. The inner end of the paddle is connected to the connector, and a rotating shaft passes through the fixed seat and the connector to achieve the rotational installation of the paddle and the connector. At the same time, the fixed seat is used to limit the movement range of the paddle. It can be seen that in the traditional solution, due to the large number of parts used, there are problems such as reduced structural reliability and high cost.

[0088] In order to overcome the above defects, the present invention forms the rotating shaft 24 integrally on the paddle 2 to reduce the number of parts and simplify the product structure.

[0089] It should be noted that in the traditional structure, in order to ensure the reliable installation of the rotating shaft, a rotating installation hole that allows the rotating shaft to pass axially is set on the fixed seat and the connecting piece respectively. During installation, the connecting piece is first inserted into the installation cavity of the fixed seat, and after the rotating installation holes of the two are aligned, the rotating shaft is passed through the rotating installation hole. Since the rotating shaft is an independent cylindrical structure, it can be axially pushed into the rotating installation holes on the fixed seat and the connecting piece. On the basis of this structure, if the rotating shaft and the connecting piece are simply set as an integral structure, the rotating shaft will not be able to be installed by axially inserting the rotating installation hole on the fixed seat; and because the length of the rotating shaft will be larger than the spacing between the rotating installation holes on both sides of the fixed seat, the two ends of the rotating shaft that are integrated with the connecting piece cannot be inserted into the rotating installation holes on both sides of the fixed seat. Therefore, in the face of this obstacle, there is no reason for those skilled in the art to set the rotating shaft and the connecting piece as an integral structure.

[0090] In this embodiment, refer to Fig. 9 The rotating shaft 24 and the paddle 2 are of an integrated structure, which is equivalent to protruding cylindrical structures on two opposite sides of the paddle 2, and the cylinders are the rotating shaft 24; correspondingly, rotating shaft grooves 13 corresponding to the rotating shaft 24 are provided on both sides of the paddle 2 in the rotating mounting platform 12. During installation, the two ends of the rotating shaft 24 are respectively inserted into the rotating shaft grooves 13 to realize rotating installation.

[0091] In order to overcome the problem of difficult installation of the integrated rotating shaft 24 and the paddle 2, refer to Figure 7 In this solution, one side of the shaft slot 13 on the rotating mounting platform 12 is set to be open, and the shafts 24 protruding from both sides of the paddle 2 can be respectively embedded in the shaft slot 13 to meet the installation requirements. After installation, the side of the shaft 24 close to the notch of the shaft slot 13 lacks a limit, and the reliability of the rotation structure cannot be guaranteed. Therefore, this solution also provides a shaft pressing plate 5. After the shaft 24 is installed, the shaft pressing plate 5 covers the rotating mounting platform 12 to close the notch of the shaft slot 13, so that the shaft 24 can be completely restricted in the shaft slot 13, and the shaft 24 can be reliably rotated and installed.

[0092] In one embodiment, the rotating mounting platform 12 is convexly arranged relative to the outer surface of the main housing 1, and a mounting groove 41 corresponding to the shape of the rotating mounting platform 12 is provided on the side of the pressure cover 4 facing the main housing 1. The rotating mounting platform 12 is embedded in the mounting groove 41, and the bottom surface of the mounting groove 41 is crimped with the sealing ring 3.

[0093] The rotating mounting platform 12 is arranged to protrude from the outer surface of the main body housing 1, and the rotating mounting platform 12 can be set to have a sufficient thickness to provide sufficient installation space for the internal rotating shaft 24 and the rotating shaft pressing plate 5. In addition, the protruding rotating mounting platform 12 will not occupy the space inside the main body housing 1, avoiding the problem that the rotating mounting platform 12 interferes with the installation of other internal components.

[0094] From the above, we can see that combined with Figure 1 In the structure of the trigger assembly of this scheme, only the end of the paddle 2 extends into the host housing 1, and its installation only occupies a very small part of the space in the host housing 1, which can reserve more space for the installation of other components, and is convenient for the design layout and assembly of the product.

[0095] In one embodiment, at least two parallel mounting holes 11 are provided on the rotating mounting platform 12 , each mounting hole 11 is correspondingly mounted with a paddle 2 , and all paddles 2 share a sealing ring 3 and a pressure cover 4 .

[0096] Arranging multiple paddles 2 can be used to control multiple electronic switches 61 to achieve more functional control. Arranging multiple paddles 2 side by side and sharing a sealing ring 3 and a gland 4 can reduce the number of product parts and components, and has the advantage of convenient production and assembly.

[0097] In one embodiment, a reset spring 7 is disposed in the host housing 1 , and the reset spring 7 abuts against the paddle 2 to push the paddle 2 to reset so that the paddle 2 deviates from the position of triggering the electronic switch 61 .

[0098] Specifically, a circuit board 6 is disposed in the host housing 1, and an electronic switch 61 is disposed at a position corresponding to the paddle 2 on the circuit board 6. When the paddle 2 is toggled, the electronic switch 61 can be pressed to complete the triggering operation. A reset spring 7 is disposed in the host housing 1, and the reset spring 7 can push the paddle 2 away from the electronic switch 61, so that after the user releases the paddle 2, the reset spring 7 can automatically push the paddle 2 to reset.

[0099] Preferably, refer to Figure 3 A spring fixing seat 16 is integrally formed on the inner side of the host housing 1 , and the return spring 7 is installed on the spring fixing seat 16 .

[0100] On the other hand, a steering control device is provided, comprising the trigger assembly mentioned above.

[0101] Likewise, based on the trigger assembly of this embodiment, the steering control device has the advantages of simple structure, stability and low cost.

[0102] On the other hand, an agricultural machine is provided, comprising the above-mentioned steering control device.

[0103] Similarly, based on the steering control device of this embodiment, the agricultural machine has the advantages of simple structure, stability and low cost.

[0104] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and other directions or positional relationships are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of this application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0105] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means 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 representation of the above terms does not necessarily refer to the same embodiment or example.

[0106] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0107] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the present application without creative work, and these methods will fall within the scope of protection of the present application.

Claims

1. A trigger component, characterized in that: include: A mainframe housing (1) having a mounting hole (11) on one side; A plectrum (2) is disposed through the mounting hole (11); A sealing ring (3) is tightly sleeved on the outside of the paddle (2); The pressure cover (4) is fixed on the main engine housing (1), and the peripheral material of the sealing ring (3) is pressed tightly between the main engine housing (1) and the pressure cover (4).

2. The trigger assembly according to claim 1, characterized in that: The sealing ring (3) is provided with a sealing hole (33), the paddle (2) is provided with a sealing ring groove (23) matching the sealing hole (33), the sealing ring (3) is sleeved on the outside of the paddle (2) through the sealing hole (33), and the material around the sealing hole (33) is embedded in the sealing ring groove (23).

3. The trigger assembly according to claim 2, characterized in that: The paddle (2) comprises a paddle rod (21) and a handle (22); the paddle rod (21) passes through the mounting hole (11); and the handle (22) is connected to one end of the paddle rod (21) outside the host housing (1).

4. The trigger assembly according to claim 3, characterized in that: An outwardly protruding blocking piece (211) is provided on the lever (21) at a position close to the handle (22), and the sealing ring groove (23) is formed between the blocking piece (211) and the handle (22).

5. The trigger assembly according to claim 4, characterized in that: The handle (22) and the blocking piece (211) clamp the material on the paddle (2) located around the sealing hole (33).

6. The trigger assembly according to claim 2, characterized in that: The sealing ring (3) comprises an outer ring portion (31) and a convex portion (32), wherein the convex portion (32) is connected to the inner circumference of the outer ring portion (31), and the convex portion (32) protrudes toward one side relative to the outer ring portion (31); the outer ring portion (31) is pressed between the main body housing (1) and the pressure cover (4), and the sealing hole (33) is arranged on the convex portion (32), so that the paddle (2) passes through the convex portion (32).

7. The trigger assembly according to claim 6, characterized in that: The pressure cover (4) is provided with a first avoidance hole (42), and the convex portion (32) is embedded in the first avoidance hole (42).

8. The trigger assembly according to any one of claims 1 to 7, characterized in that: A rotating mounting platform (12) is provided on one side of the main body housing (1) corresponding to the side where the paddle (2) is mounted, and the paddle (2) is connected to a rotating shaft (24), and the rotating shaft (24) is rotatably mounted on the rotating mounting platform (12).

9. The trigger assembly according to claim 8, characterized in that: The rotating mounting platform (12) is integrally formed on the main body housing (1), and the mounting hole (11) passes through the rotating mounting platform (12).

10. The trigger assembly according to claim 9, characterized in that: The rotating mounting platform (12) is provided with rotating shaft grooves (13) on two opposite side walls of the mounting hole (11); the rotating shaft groove (13) passes through the side of the rotating mounting platform (12) facing the pressure cover (4); and the rotating shaft (24) is restricted from being separated from the rotating shaft groove (13) by the installation of the pressure cover (4).

11. The trigger assembly according to claim 10, characterized in that: A rotating shaft pressing plate (5) is arranged between the rotating mounting platform (12) and the sealing ring (3), and the pressure cover (4) indirectly presses the rotating shaft pressing plate (5) through the sealing ring (3), so that the rotating shaft pressing plate (5) restricts the rotating shaft (24) in the rotating shaft groove (13).

12. The trigger assembly according to claim 11, characterized in that: A pressure plate slot (14) cooperating with the rotating shaft pressure plate (5) is provided on the side of the rotating mounting platform (12) facing the pressure cover (4), and the rotating shaft pressure plate (5) is clamped into the pressure plate slot (14).

13. The trigger assembly according to claim 10, characterized in that: The rotating shaft (24) and the paddle (2) are an integral structure.

14. The trigger assembly according to claim 9, characterized in that: The rotating mounting platform (12) is arranged to protrude outwardly relative to the outer surface of the main housing (1); a mounting groove (41) corresponding to the shape of the rotating mounting platform (12) is provided on the side of the pressure cover (4) facing the main housing (1); the rotating mounting platform (12) is embedded in the mounting groove (41); and the bottom surface of the mounting groove (41) is pressed against the sealing ring (3).

15. The trigger assembly according to claim 9, characterized in that: The rotating mounting platform (12) is provided with at least two parallel mounting holes (11), each mounting hole (11) correspondingly mounting one of the paddles (2), and all the paddles (2) share one sealing ring (3) and one pressure cover (4).

16. The trigger assembly according to claim 8, characterized in that: A reset spring (7) is arranged inside the host housing (1), and the reset spring (7) abuts against the paddle (2) and is used to push the paddle (2) to reset, so that the paddle (2) deviates from the position of triggering the electronic switch (61).

17. A steering control device, characterized in that: Comprising the trigger component described in any one of claims 1-16.

18. An agricultural machine, characterized in that: Includes the steering control device as claimed in claim 17.

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