Combination switch of agricultural vehicle

Abstract

The utility model relates to a combination switch of an agricultural vehicle, which comprises a base formed by buckling an upper cover and a lower cover, one end of the base is connected with a light control rod, the other end of the base is detachably connected with a buckle plate through a fastener, and a buckle ring matched with a steering gear box tubular column is formed between the buckle plate and the base. The lamp is characterized in that a mounting cavity is formed in the end, close to the light control rod, of the end, facing the lower cover, of the upper cover, a rotating head structure is mounted in the mounting cavity, and one end of the light control rod is mounted in the mounting cavity through the rotating head structure and can drive the rotating head structure to move in the circumferential direction of the mounting cavity to achieve light switching; a power transmission structure is arranged at one end, far away from the upper cover, of the rotating head structure, a wire board which is detachably arranged is arranged at the position, corresponding to the transmission structure, of the lower cover, a wiring space is formed between the wire board and the lower cover, and one end of the power transmission structure penetrates into the wiring space. The assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of agricultural vehicle parts, in particular to a combined switch for an agricultural vehicle. Background Art

[0002] The combination switch is usually installed on the steering column under the steering wheel. It has functions such as steering switch and wiper washer switch. It can control the automobile circuit system and plays a very important role in the driving process of the car.

[0003] At present, the combination switch used on agricultural vehicles is generally a light control combination switch for controlling lights because the functions of agricultural vehicles themselves are relatively simple. In the existing light control combination switch, the internal structure of the combination switch base is very complicated, resulting in low assembly efficiency and time-consuming and labor-intensive. In addition, the design of the power transmission structure for transmitting electrical signals inside is also very unreasonable. For example, the wire described in patent number CN 116749865 A passes through the handle rod and is finally welded inside the combination switch base, which is inconvenient to disassemble. Although patent number CN 116749865 A has made similar improvements to this problem, its solution is not suitable for combination switches of agricultural vehicles and still has the problem of being relatively complicated and inconvenient to process and assemble. It is necessary to make improvements on this. Summary of the invention

[0004] The technical problem to be solved by the present invention is to address the deficiencies of the above-mentioned prior art.

[0005] The invention provides a combined switch for an agricultural vehicle which has a simplified internal structure of a base and an improved installation structure of a transmission plate.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combination switch for agricultural vehicles, comprising a base formed by an upper cover and a lower cover buckled together, one end of the base is connected to a light control rod, and the other end is detachably connected to a buckle plate through a fastener, and a buckle ring adapted to a steering column is formed between the buckle plate and the base, characterized in that: an installation cavity is provided at an end of the upper cover facing the lower cover at an end close to the light control rod, a rotating head structure is installed in the installation cavity, one end of the light control rod is installed in the installation cavity through the rotating head structure and the rotating head structure can be moved circumferentially along the installation cavity to realize light switching, an electric transmission structure is provided at an end of the rotating head structure away from the upper cover, and a detachable wire plate is provided at a corresponding position of the transmission structure of the lower cover, a wiring space is formed between the wire plate and the lower cover, and one end of the electric transmission structure penetrates into the wiring space.

[0007] By adopting the above technical scheme, the wiring method of the existing light control combination switch used on agricultural machinery is to connect directly in the installation cavity. This structure has high assembly requirements. If the wiring is not connected properly during assembly, the product will have problems when it is powered on and the entire base needs to be disassembled for rewiring. The utility model sets the power transmission structure on the rotating head and one end passes through the lower cover into the wiring space formed between the lower cover and the wire board. In this way, the entire product can be assembled in advance, the wire board can be opened for wiring, and the upper wire board can be reconnected after the wiring is completed. The wiring assembly is completed independently in the wiring space. Not only is the structure compact but also the assembly efficiency is greatly improved.

[0008] The above-mentioned combination switch of an agricultural vehicle can be further configured as follows: the rotating head structure includes a rotating head and a steering shift plate, one end of the steering shift plate is abutted against the upper cover and the other end is abutted against the rotating head through an elastic member, the rotating head includes a rotating head body, the end of the rotating head body facing the light control rod is provided with a first connecting cavity for the light control rod to pass through, the end of the rotating head body away from the first mounting cavity is provided with at least two groups of first mounting parts arranged at intervals, the first mounting part is recessed in the rotating head body to form an annular step, the power transmission structure includes a steering dynamic power transmission plate arranged in the annular step, one of the steering dynamic power transmission plates is provided with a first wiring terminal and a second wiring terminal arranged opposite to each other, and the other steering dynamic power transmission plate is provided with a steering static power transmission plate in contact with the steering dynamic power transmission plate, the first wiring terminal, the second wiring terminal and the steering static power transmission plate pass through the lower cover and extend into the wiring space.

[0009] By adopting the above technical scheme, the steering shift plate is provided with teeth with spaced protrusions, and the rotating head body contacts the toothed protrusions on the steering shift plate through an elastic member. Generally, a steel ball is provided at the other end of the elastic member, and the steel ball slides on the toothed protrusions. In practice, a shifting sound (the sound emitted when the steel ball contacts the toothed protrusions) is emitted when switching. A first installation cavity is provided at one end of the rotating head for installing the light control lever, and an annular step is formed at the other end with spaced arrangements and an outer diameter smaller than the outer diameter of the rotating head body. The width of the annular step is provided to match the steering dynamic transmission plate, so as to facilitate the better installation of the steering dynamic transmission plate and play a limiting role. Because the first wiring terminal, the second wiring terminal, and the rotating static transmission plate provided on the steering dynamic transmission plate have already conflicted with the lower cover, when one end thereof passes through the lower cover and enters the wiring space, it has sufficient strength to ensure that it will not loosen after wiring. This structure is more compact and convenient for wiring.

[0010] The above-mentioned combination switch for an agricultural vehicle can be further configured as follows: an open groove is provided in the middle of the first mounting portion and is open toward one end of the steering dynamic transmission plate, a second elastic member is installed in the open groove, a second elastic member mounting protrusion is provided at one end of the steering dynamic transmission plate facing the open groove, and the other end of the second elastic member is wound around the second elastic member mounting protrusion and is against the open groove through a first steel ball.

[0011] By adopting the above technical solution, by providing the second elastic member and the steel ball, the dynamic transmission plate is firmly pressed against the end surface of the lower cover by the second elastic member after being installed on the first installation part, thereby improving the stability of the dynamic transmission plate after assembly.

[0012] The above-mentioned combination switch for an agricultural vehicle can be further configured as follows: the lower cover is provided with through holes for the first terminal and the second terminal to pass through at positions corresponding to the first terminal and the second terminal, and the lower cover is provided with through grooves for the two ends of the steering static electric transmission sheet to pass through at positions corresponding to the two ends of the steering static electric transmission sheet.

[0013] By adopting the above technical solution, the small ends of the first terminal and the second terminal pass through the through hole and are located in the wiring space, and the two ends of the steering static transmission sheet pass through the through groove and are located in the wiring space, that is, most of the first terminal, the second terminal and the steering static transmission sheet are still located in the lower cover, thereby improving the compactness after assembly and preventing parts (specifically the first terminal, the second terminal and the steering static transmission sheet) from falling off from the wiring space.

[0014] The above-mentioned combination switch of an agricultural vehicle can be further configured as follows: a steering gear sprocket is provided in the installation cavity on the other side of the rotating head body relatively connected to the steering gear plate, and the steering gear sprocket is provided with gear teeth distributed in a fan shape, and at least one group of third elastic members is provided in the rotating head body, and one end of the third elastic member is abutted against the rotating head body and the other end is abutted against the gear teeth through a second steel ball.

[0015] By adopting the above technical solution, a gear switching structure that makes a sound when the gear is switched is set between the mounting cavities of the rotating head body, thereby further improving the prompt sound effect when the gear is switched, thereby enhancing the user experience.

[0016] The above-mentioned combination switch of an agricultural vehicle can be further configured as follows: at least one group of accommodating cavities opening toward one end of the gear tooth is provided in the rotating head body, and the third elastic member is installed in the accommodating cavity with one end abutting against the bottom of the accommodating cavity and the other end abutting against the second steel ball.

[0017] By adopting the above technical solution, a receiving cavity is opened in the rotating head body to receive the third elastic member and the second steel ball inside the rotating head body, thereby improving the integration.

[0018] The beneficial effects of the utility model are: simplifying the base structure and improving the installation structure of the power transmission plate, thereby improving the assembly efficiency.

[0019] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the embodiment of the utility model after removing the wire plate;

[0022] Figure 3 This is a schematic diagram of the internal structure of the lower cover after removing the upper cover and the light control rod of the utility model embodiment;

[0023] Figure 4 This is a schematic diagram of the structure of the rotating head of an embodiment of the utility model;

[0024] Figure 5 The three-dimensional structure of the rotating head of the embodiment of the utility model is shown in FIG. Figure 1 ;

[0025] Figure 6 The three-dimensional structure of the rotating head of the embodiment of the utility model is shown in FIG. Figure 2 ;

[0026] Figure 7 This is a schematic diagram of the upper cover structure of an embodiment of the utility model;

[0027] Figure 8 This is a schematic diagram of the lower cover structure of an embodiment of the utility model;

[0028] Fig. 9 This is a schematic diagram of the exploded structure of the embodiment of the utility model after removing the light control rod; DETAILED DESCRIPTION

[0029] like Figures 1 to 9A combination switch for an agricultural vehicle shown in the figure comprises a base 1 formed by buckling an upper cover 11 and a lower cover 12, one end of the base 1 is connected to a light control rod 2 and the other end is detachably connected to a buckle plate 3 through a fastener, a buckle ring 13 adapted to a steering column is formed between the buckle plate 3 and the base 1, an end of the upper cover 11 facing the lower cover 12 is provided with an installation cavity 111 at an end close to the light control rod 2, a rotating head structure 14 is installed in the installation cavity 111, one end of the light control rod 2 is installed in the installation cavity 111 through the rotating head structure 14 and can be moved along the circumferential direction of the installation cavity 111 to realize light switching, an electric transmission structure is provided at one end of the rotating head structure 14 away from the upper cover 11, a detachable wire plate 15 is provided at a corresponding position of the transmission structure of the lower cover 12, a wiring space 151 is formed between the wire plate 15 and the lower cover 12, and one end of the electric transmission structure penetrates into the wiring space 151;

[0030] The existing wiring method of the light control combination switch used on agricultural machinery is to connect directly in the installation cavity. This structure has high assembly requirements. If the wiring is not connected properly during assembly, the product needs to be disassembled for rewiring if there is a problem with the power supply. The utility model sets the power transmission structure on the rotating head and one end passes through the lower cover and enters the wiring space formed between the lower cover and the wire board. In this way, the whole product can be assembled in advance, the wire board can be opened for wiring when wiring, and the upper wire board can be reconnected after the wiring is completed. The wiring assembly is completed independently in the wiring space, which is not only compact in structure but also greatly improves the assembly efficiency;

[0031] The line plate 15 is provided with a corresponding connection hole 152, and the connection hole 152 is connected to the lower cover 12 through a fastening bolt 153. Of course, the lower cover 12 is provided with a connection column 121 for connecting the fastening bolt 153 at a position corresponding to the connection hole 152, and the connection column 121 is provided with an internal thread;

[0032] The rotating head structure 14 includes a rotating head 141 and a steering shift plate 142. One end of the steering shift plate 142 is in contact with the upper cover 11, and the other end is in contact with the rotating head 141 through the elastic member 16. The rotating head 141 includes a rotating head body 1411. The end of the rotating head body 1411 facing the light control rod 2 is provided with a first connecting cavity 1412 for the light control rod 2 to pass through. The end of the rotating head body 1411 away from the first installation cavity 1412 is provided with two sets of first installation parts 1413 arranged at intervals. The first installation parts 1413 is recessed in the rotating head body 1411 to form an annular step, and the power transmission structure includes a steering dynamic power transmission sheet 17 arranged in the annular step, wherein one steering dynamic power transmission sheet 17 is provided with a first wiring terminal 171 and a second wiring terminal 172 which are arranged opposite to each other, and the other steering dynamic power transmission sheet 17 is provided with a steering static power transmission sheet 18 which contacts the steering dynamic power transmission sheet 17, and the first wiring terminal 171, the second wiring terminal 172, and the steering static power transmission sheet 18 pass through the lower cover 12 and extend into the wiring space 151;

[0033] The steering shift plate is provided with teeth with spaced protrusions. The rotating head body 1411 contacts the toothed protrusions on the steering shift plate 142 through the elastic member 143. Generally, a steel ball 144 is provided at the other end of the elastic member 143. The steel ball 144 slides on the toothed protrusions. In practice, a shifting sound (the sound emitted when the steel ball contacts the toothed protrusions) is emitted when switching. A first installation cavity is provided at one end of the rotating head for installing the light control lever, and an annular step is formed at the other end with spaced arrangement and an outer diameter smaller than the outer diameter of the rotating head body. The width of the annular step is provided to match the steering dynamic transmission plate, so as to facilitate the better installation of the steering dynamic transmission plate and play a role in limiting. Because the first wiring terminal, the second wiring terminal and the rotating static transmission plate provided on the steering dynamic transmission plate have already been in conflict with the lower cover, when one end thereof passes through the lower cover and enters the wiring space, it has sufficient strength to ensure that it will not loosen after wiring. This structure is more compact and convenient for wiring.

[0034] The first mounting portion 1413 is provided with an opening slot 14131 in the middle thereof, which is open toward one end of the steering movable power transmission sheet 17. A second elastic member 19 is installed in the opening slot 14131. A second elastic member mounting protrusion 173 is provided at one end of the steering movable power transmission sheet 17 facing the opening slot 14131. The second elastic member 19 is wound around the second elastic member mounting protrusion 173 and the other end thereof abuts against the opening slot 14131 through a first steel ball 174.

[0035] By providing the second elastic member and the steel ball, the movable transmission sheet is firmly pressed against the end surface of the lower cover by the second elastic member after being installed on the first installation portion, thereby improving the stability of the movable transmission sheet after assembly;

[0036] The lower cover 12 is provided with through holes 175 for the first terminal 171 and the second terminal 172 to pass through at positions corresponding to the first terminal 171 and the second terminal 172, and the lower cover 12 is provided with through slots 121 for the two ends of the turning static electric sheet 18 to pass through at positions corresponding to the two ends of the turning static electric sheet 18, and the lower cover 12 is also provided with a third terminal 176 and a fourth terminal 177 passing through the lower cover 12;

[0037] The small ends of the first wiring terminal and the second wiring terminal pass through the through hole and are located in the wiring space, and the two ends of the steering static transmission sheet pass through the through slot and are located in the wiring space, that is, the first wiring terminal, the second wiring terminal and the steering static transmission sheet are still mostly located in the lower cover, which improves the compactness after assembly and prevents the components (specifically the first wiring terminal, the second wiring terminal and the steering static transmission sheet) from falling off from the wiring space;

[0038] A steering gear tooth plate 112 is provided in the installation cavity 111 on the other side of the rotating head body 1411 which is connected to the steering gear plate 142. The steering gear tooth plate 112 is provided with gear teeth 1121 distributed in a fan shape. Two sets of third elastic members 1412 are provided in the rotating head body 1411. One end of the third elastic member 1412 abuts against the rotating head body 1411, and the other end abuts against the gear teeth 1121 through the second steel ball 1413.

[0039] By providing a gear switching structure between the mounting cavities of the rotating head body that makes a sound when the gear is switched, the prompt sound effect when the gear is switched is further improved, thereby enhancing the user experience;

[0040] The rotating head body 1411 is provided with two sets of accommodating cavities 1421 which are oppositely arranged and open toward one end of the gear teeth 1121. The third elastic member 1412 is installed in the accommodating cavity 1421 with one end abutting against the bottom of the accommodating cavity 1421 and the other end abutting against the second steel ball 1413.

[0041] A receiving cavity is provided in the rotating head body to receive the third elastic member and the second steel ball inside the rotating head body, thereby improving the integration degree;

[0042] The beneficial effects of the utility model are: simplifying the base structure and improving the installation structure of the power transmission plate, thereby improving the assembly efficiency.

Claims

1. A combination switch for agricultural vehicles, comprising a base formed by buckling an upper cover and a lower cover, one end of the base is connected to a light control rod and the other end is detachably connected to a buckle plate through a fastener, a buckle ring adapted to a steering column is formed between the buckle plate and the base, characterized in that: An installation cavity is provided at one end of the upper cover facing the lower cover at an end close to the light control rod, a rotating head structure is installed in the installation cavity, one end of the light control rod is installed in the installation cavity through the rotating head structure and the rotating head structure can be moved circumferentially along the installation cavity to realize light switching, an electric transmission structure is provided at one end of the rotating head structure away from the upper cover, and a detachable wire plate is provided at a corresponding position of the transmission structure of the lower cover, a wiring space is formed between the wire plate and the lower cover, and one end of the electric transmission structure penetrates into the wiring space.

2. A combination switch for an agricultural vehicle according to claim 1, characterized in that: The rotating head structure includes a rotating head and a steering shift plate, one end of the steering shift plate is abutted against the upper cover and the other end is abutted against the rotating head through an elastic member, the rotating head includes a rotating head body, one end of the rotating head body facing the light control rod is provided with a first connecting cavity for the light control rod to pass through, and one end of the rotating head body away from the first mounting cavity is provided with at least two groups of first mounting parts arranged at intervals, the first mounting parts are recessed in the rotating head body to form an annular step, the power transmission structure includes a steering dynamic power transmission plate arranged in the annular step, one of the steering dynamic power transmission plates is provided with a first wiring terminal and a second wiring terminal arranged opposite to each other, and the other steering dynamic power transmission plate is provided with a steering static power transmission plate in contact with the steering dynamic power transmission plate, the first wiring terminal, the second wiring terminal and the steering static power transmission plate pass through the lower cover and extend into the wiring space.

3. A combination switch for an agricultural vehicle according to claim 2, characterized in that: An open groove is provided in the middle of the first mounting portion and is open toward one end of the steering movable power transmission plate. A second elastic member is installed in the open groove. A second elastic member mounting protrusion is provided at one end of the steering movable power transmission plate facing the open groove. The second elastic member is wound around the second elastic member mounting protrusion and the other end thereof is against the open groove through a first steel ball.

4. A combination switch for an agricultural vehicle according to claim 2, characterized in that: The lower cover is provided with through holes for the first and second wiring terminals to pass through at positions corresponding to the first and second wiring terminals, and the lower cover is provided with through grooves for the two ends of the steering static transmission sheet to pass through at positions corresponding to the two ends of the steering static transmission sheet.

5. The combination switch for an agricultural vehicle according to claim 2, characterized in that: A steering gear sprocket is provided in the installation cavity on the other side of the rotating head body opposite to the steering gear plate, and the steering gear sprocket is provided with gear teeth distributed in a fan shape. At least one group of third elastic members is provided in the rotating head body, and one end of the third elastic member is against the rotating head body and the other end is against the gear teeth through a second steel ball.

6. A combination switch for an agricultural vehicle according to claim 5, characterized in that: The rotating head body is provided with at least one set of accommodating cavities opening toward one end of the gear teeth. The third elastic member is installed in the accommodating cavity with one end abutting against the bottom of the accommodating cavity and the other end abutting against the second steel ball.

Images