Structure for operating accelerator through pull rod

Abstract

The utility model relates to a structure for controlling an accelerator through a pull rod, and belongs to the field of tractor accelerator control. Comprising a hand accelerator mechanism, a foot accelerator mechanism, three first rotating shafts, a second rotating shaft, an engine, a flameout pull rod mechanism and a mounting frame, the first rotating shafts and the second rotating shaft are installed on the installation frame, the hand accelerator mechanism and the foot accelerator mechanism are connected with the two first rotating shafts through pull rod assemblies respectively, and the two first rotating shafts are connected with the second rotating shaft through the pull rod assemblies. The second rotating shaft is connected with the third first rotating shaft through the pull rod assembly, the third first rotating shaft is connected with the engine through the pull rod assembly, and the flameout pull rod mechanism is connected with the engine through the pull rod assembly. According to the utility model, the direct transmission of power is realized, the structural strength, durability and environmental adaptability are improved, and the daily maintenance and adjustment are convenient.

Description

Technical Field

[0001] The utility model relates to the field of tractor throttle control, in particular to a structure for controlling the throttle by a pull rod. Background Art

[0002] As an important mechanized equipment in the agricultural production process, tractors are becoming more and more widely used under the trend of mechanized agricultural planting nowadays. The throttle cable control is a classic control structure for mechanical pump engines. On tractors, the hand throttle and the foot throttle are connected to the engine throttle through cables. By operating the hand throttle and the foot throttle, the rocker arm can be pulled through the cable to achieve the effect of adjusting the throttle. However, in the special working conditions of paddy field operations, the cable structure of the throttle is easily invaded by mud and water, resulting in poor throttle control. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a structure for controlling the throttle by a pull rod to solve the above problems.

[0004] The technical solution for the utility model to solve the above technical problems is as follows: A structure for controlling the throttle by a pull rod includes: a hand throttle mechanism, a foot throttle mechanism, three first rotating shafts, a second rotating shaft, an engine, a flameout pull rod mechanism and a mounting bracket; the first rotating shaft and the second rotating shaft are installed on the mounting bracket, the hand throttle mechanism and the foot throttle mechanism are respectively connected to two of the first rotating shafts through a pull rod assembly, both of the first rotating shafts are connected to the second rotating shaft through the pull rod assembly, the second rotating shaft is connected to the third first rotating shaft through the pull rod assembly, the third first rotating shaft is connected to the engine through the pull rod assembly, and the flameout pull rod mechanism is connected to the engine through the pull rod assembly.

[0005] The beneficial effects of the present utility model are as follows: The throttle pull rod directly transmits the driver's control force on the throttle through a rod. Compared with the throttle cable that relies on a flexible cable to transmit force, and there may be certain elastic deformation and frictional loss during the cable pulling process, the throttle pull rod has a more direct force transmission characteristic, reducing the energy loss caused by the elastic deformation and friction of the cable. In terms of force transmission efficiency and response speed, the throttle pull rod performs better; the throttle pull rod has higher tensile and bending resistance capabilities. Compared with the throttle cable that may be subject to stretching, wear, or breakage risks after long-term use, the throttle pull rod has an advantage in terms of durability and structural strength, especially in application scenarios that require high strength and long life, and the use of the pull rod is more reliable; compared with the throttle cable that is exposed to the external environment and is easily affected by factors such as temperature, humidity, and corrosive substances, resulting in performance degradation or failure, the throttle pull rod, especially the metal pull rod treated specially, has strong adaptability to the external environment and performs better than the throttle cable in harsh environments, especially in high-temperature, low-temperature, or corrosive environments, and the pull rod can better maintain its performance; the throttle cable needs to adjust its tension regularly or replace the cable during use to ensure its normal operation, while the throttle pull rod, due to its simple structure and strong durability, usually does not require frequent adjustment or maintenance, has an advantage in terms of maintenance frequency, reduces the maintenance requirements, and improves the overall use convenience; in addition, the overall layout of the present utility model is compact and suitable for small-horsepower (below 50 horsepower) tractors.

[0006] On the basis of the above technical solution, the present utility model can be further improved as follows.

[0007] Further, the first rotating shaft includes: a first fixed bracket, a first rotating shaft, and two first rotating shaft rocker arms; the first fixed bracket is a U-shaped plate-like structure installed on the mounting frame, the first rotating shaft is arranged inside the first fixed bracket, both ends of the first rotating shaft are rotatably installed on the inner walls of both sides of the first fixed bracket, and the two first rotating shaft rocker arms are installed on the outer wall of the first rotating shaft.

[0008] The beneficial effect of adopting the above further solution is that the first rotating shaft is beneficial to driving the two first rotating shaft rocker arms to rotate, and then cooperating with the pull rod assembly to achieve power transmission.

[0009] Further, the pull rod assembly includes a hand throttle pull rod and a foot throttle pull rod; the hand throttle pull rod is composed of a first hand throttle transmission pull rod and a second hand throttle transmission pull rod, and one end of the first hand throttle transmission pull rod and one end of the second hand throttle transmission pull rod are respectively connected to two of the first pivot arms in the first pivot shafts; the foot throttle pull rod is composed of a first foot throttle transmission pull rod and a second foot throttle transmission pull rod, and one end of the first foot throttle transmission pull rod and one end of the second foot throttle transmission pull rod are respectively connected to two of the first pivot arms in the second pivot shafts.

[0010] The beneficial effects of adopting the above further scheme are as follows: the first hand throttle transmission pull rod and the second hand throttle transmission pull rod are beneficial to transmit the power of the hand throttle mechanism to the second pivot shaft through two of the first pivot arms in the first pivot shaft; the first foot throttle transmission pull rod and the second foot throttle transmission pull rod are beneficial to transmit the power of the foot throttle mechanism to the second pivot shaft through two of the first pivot arms in the first pivot shaft.

[0011] Further, the hand throttle mechanism includes a hand throttle lever and a hand throttle pull rod arm; two ends of the hand throttle pull rod arm are respectively connected to the hand throttle lever and the end of the first hand throttle transmission pull rod away from the first pivot arm.

[0012] The beneficial effects of adopting the above further scheme are as follows: the hand throttle lever is beneficial to drive the hand throttle pull rod arm to rotate by rotation, and further drive the first hand throttle transmission pull rod and the subsequent connected first pivot shaft to rotate, so as to realize the transmission of power.

[0013] Further, the second pivot shaft includes: a second fixed bracket, a second rotating shaft, two rotating bearings, two second pivot arms and a transmission arm; the second fixed bracket is a U-shaped plate-like structure installed on the mounting bracket, the two rotating bearings respectively pass through two side walls of the second fixed bracket, the two rotating bearings are sleeved on the second rotating shaft, the two second pivot arms are arranged side by side on one end side wall of the second rotating shaft, the transmission arm is arranged on the other end side wall of the second rotating shaft, and the second pivot arms and the transmission arm are respectively arranged on two sides outside the second fixed bracket.

[0014] The beneficial effects of adopting the above further scheme are as follows: the rotating bearings are beneficial to ensure the smooth rotation of the second rotating shaft and the second pivot arms and the transmission arm thereon, and further realize the smooth transmission of power.

[0015] Further, the foot throttle mechanism includes: a foot throttle pedal, a foot throttle pedal rocker arm, a hub, and a foot throttle pull rod rocker arm; the foot throttle pedal rocker arm and the foot throttle pull rod rocker arm are both arranged on the outer wall of the hub, the foot throttle pedal is installed at one end of the foot throttle pedal rocker arm away from the hub, and the foot throttle pull rod rocker arm is connected to one end of the first foot throttle transmission pull rod away from the first rotating shaft rocker arm.

[0016] The beneficial effect of adopting the above further solution is that stepping on the foot throttle pedal helps the foot throttle pedal rocker arm drive the hub to rotate, thereby driving the foot throttle pull rod rocker arm and the first foot throttle transmission pull rod and the first rotating shaft connected in sequence therewith to rotate, realizing the transmission of power.

[0017] Further, an arm chute is arranged on the second rotating shaft rocker arm, the arm chute is an arc-shaped through hole, and one end of the second hand throttle transmission pull rod away from the first rotating shaft rocker arm and one end of the second foot throttle transmission pull rod away from the first rotating shaft rocker arm are both bent and respectively pass through the arm chutes on the two second rotating shaft rocker arms.

[0018] The beneficial effect of adopting the above further solution is that when one of the second hand throttle transmission pull rod and the second foot throttle transmission pull rod drives the second rotating shaft rocker arm to rotate, the other of the second hand throttle transmission pull rod and the second foot throttle transmission pull rod can slide in the arm chute, so that there is no contact point between the other of the second hand throttle transmission pull rod and the second foot throttle transmission pull rod, and power transmission cannot be realized, thereby ensuring to avoid the pull rod conflict when the hand throttle mechanism and the foot throttle mechanism are operated, so that only the hand throttle mechanism or the foot throttle mechanism can operate the throttle at the same time.

[0019] Further, the pull rod assembly further includes two baffles and two limit pins; the two baffles are respectively sleeved on the bent ends of the second hand throttle transmission pull rod after passing through the arm chute and the bent ends of the second foot throttle transmission pull rod after passing through the arm chute, the two limit pins respectively pass through the bent ends of the second hand throttle transmission pull rod and the bent ends of the second foot throttle transmission pull rod, and the baffles are arranged between the limit pins and the second rotating shaft rocker arm.

[0020] The beneficial effect of adopting the above further solution is that the baffles and the limit pins are beneficial to ensuring that the second hand throttle transmission pull rod and the second foot throttle transmission pull rod will not become loose when driving the second rotating shaft rocker arm to rotate, thereby ensuring the smooth transmission of power.

[0021] Further, the pull rod assembly further includes a rotating shaft transmission pull rod and an engine throttle pull rod; two ends of the rotating shaft transmission pull rod are respectively connected to one of the transmission rocker arm and one of the first rotating shaft rocker arms of the third first rotating shaft, and two ends of the engine throttle pull rod are respectively connected to the other first rotating shaft rocker arm of the third first rotating shaft and the throttle rocker arm of the engine.

[0022] The beneficial effect of adopting the above further scheme is that the rotating shaft transmission pull rod is beneficial to transmit the power generated by the rotation of the second rotating shaft to the third first rotating shaft, thereby driving the engine throttle pull rod and the throttle rocker arm of the engine connected thereto to rotate, and finally realizing the control of the engine throttle.

[0023] Further, the flameout pull rod mechanism includes a first flameout transmission pull rod and a second flameout transmission pull rod; two ends of the second flameout transmission pull rod are respectively connected to the first flameout transmission pull rod and the flameout rocker arm of the engine.

[0024] The beneficial effect of adopting the above further scheme is that the first flameout transmission pull rod and the second flameout transmission pull rod are beneficial to realize the flameout of the engine throttle through the pull rod. Description of the Drawings

[0025] Figure 1 Side view of the overall structure provided by the embodiment of the present invention;

[0026] Figure 2 Front view of the overall structure provided by the embodiment of the present invention;

[0027] Figure 3 Schematic structural diagram of the first rotating shaft provided by the embodiment of the present invention;

[0028] Figure 4 Schematic structural diagram of the second rotating shaft provided by the embodiment of the present invention;

[0029] Figure 5 For Figure 4 Enlarged schematic diagram of the connection between the second rotating shaft rocker arm and the second hand throttle transmission pull rod and the second foot throttle transmission pull rod in the shown structure;

[0030] Figure 6 Schematic structural diagram of the hand throttle mechanism provided by the embodiment of the present invention;

[0031] Figure 7 Schematic structural diagram of the foot throttle mechanism provided by the embodiment of the present invention.

[0032] In the drawings, the list of components represented by each reference numeral is as follows:

[0033] 1. Hand throttle mechanism; 2. Foot throttle mechanism; 3. First rotating shaft; 4. Second rotating shaft; 5. Engine; 6. Flameout pull rod mechanism; 7. Mounting bracket; 11. Hand throttle pull rod; 12. Foot throttle pull rod; 13. Rotating shaft transmission pull rod; 14. Engine throttle pull rod; 15. Baffle; 16. Limit pin; 31. First fixed bracket; 32. First rotating shaft; 33. First rotating shaft rocker arm; 41. Second fixed bracket; 42. Second rotating shaft; 43. Rotating bearing; 44. Second rotating shaft rocker arm; 45. Transmission rocker arm; 61. First flameout transmission pull rod; 62. Second flameout transmission pull rod; 101. Hand throttle control lever; 102. Hand throttle pull rod rocker arm; 201. Foot throttle pedal; 202. Foot throttle pedal rocker arm; 203. Rotating hub; 204. Foot throttle pull rod rocker arm; 111. First hand throttle transmission pull rod; 112. Second hand throttle transmission pull rod; 121. First foot throttle transmission pull rod; 122. Second foot throttle transmission pull rod; 441. Rocker arm chute. Detailed implementation manner

[0034] The principles and features of the present utility model are described below. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0035] As Figure 1 and Figure 2 shown, a structure for operating the throttle by a pull rod includes: a hand throttle mechanism 1, a foot throttle mechanism 2, three first rotating shafts 3, a second rotating shaft 4, an engine 5, a flameout pull rod mechanism 6, and a mounting bracket 7; the first rotating shaft 3 and the second rotating shaft 4 are installed on the mounting bracket 7, the hand throttle mechanism 1 and the foot throttle mechanism 2 are respectively connected to two of the first rotating shafts 3 through a pull rod assembly, the two first rotating shafts 3 are both connected to the second rotating shaft 4 through the pull rod assembly, the second rotating shaft 4 and the third first rotating shaft 3 are connected through the pull rod assembly, the third first rotating shaft 3 and the engine 5 are connected through the pull rod assembly, and the flameout pull rod mechanism 6 and the engine 5 are connected through the pull rod assembly.

[0036] The beneficial effects of the present utility model are as follows: The throttle lever directly transmits the driver's control force on the throttle through a rod. Compared with the throttle cable that relies on a flexible cable to transmit force, and the cable may have certain elastic deformation and frictional losses during the pulling process, the throttle lever has a more direct force transmission characteristic, reducing the energy loss caused by the elastic deformation and friction of the cable. In terms of force transmission efficiency and response speed, the throttle lever performs better; the throttle lever has higher tensile and bending resistance capabilities. Compared with the risk of stretching, wear, or breakage of the throttle cable after long-term use, the throttle lever has advantages in terms of durability and structural strength, especially in application scenarios requiring high strength and long life, and the use of the lever is more reliable; compared with the throttle cable exposed to the external environment and easily affected by factors such as temperature, humidity, and corrosive substances, resulting in performance degradation or failure, the throttle lever, especially a metal lever with special treatment, has strong adaptability to the external environment and performs better than the throttle cable in harsh environments, especially in high-temperature, low-temperature, or corrosive environments, and the lever can better maintain its performance; the throttle cable needs to be regularly adjusted in tension or the cable replaced during use to ensure its normal operation, while the throttle lever, due to its simple structure and strong durability, usually does not require frequent adjustment or maintenance, has an advantage in terms of maintenance frequency, reduces the need for maintenance, and improves the overall convenience of use; in addition, the overall layout of the present utility model is compact and suitable for small-horsepower (below 50 horsepower) tractors.

[0037] Preferably, as Figure 3 shown, the first rotating shaft 3 includes: a first fixed bracket 31, a first rotating shaft 32, and two first rotating shaft rocker arms 33; the first fixed bracket 31 is a U-shaped plate-like structure installed on the mounting bracket 7, the first rotating shaft 32 is arranged inside the first fixed bracket 31, both ends of the first rotating shaft 32 are rotatably installed on the inner walls of both sides of the first fixed bracket 31, and the two first rotating shaft rocker arms 33 are installed on the outer wall of the first rotating shaft 32.

[0038] Among them, it should be noted that: in the technical solution of the present utility model, the transmission ratio can be flexibly adjusted by adjusting the length of the first rotating shaft rocker arm 33 according to the design requirements, and the connection position can be adjusted by adjusting the position of the first rotating shaft rocker arm 33 on the outer wall of the first rotating shaft 32 to avoid collision with other components.

[0039] The beneficial effect of adopting the above preferred solution is that the first rotating shaft is beneficial to driving the two first rotating shaft rocker arms to rotate, and further cooperating with the pull rod assembly to achieve power transmission.

[0040] Preferably, as Figure 1 and Figure 2As shown, the pull rod assembly includes a hand throttle pull rod 11 and a foot throttle pull rod 12; the hand throttle pull rod 11 is composed of a first hand throttle transmission pull rod 111 and a second hand throttle transmission pull rod 112. One end of the first hand throttle transmission pull rod 111 and one end of the second hand throttle transmission pull rod 112 are respectively connected to two of the first pivot arm 33 in the first pivot 3; the foot throttle pull rod 12 is composed of a first foot throttle transmission pull rod 121 and a second foot throttle transmission pull rod 122. One end of the first foot throttle transmission pull rod 121 and one end of the second foot throttle transmission pull rod 122 are respectively connected to two of the first pivot arm 33 in the second first pivot 3.

[0041] The beneficial effects of adopting the above preferred scheme are as follows: The first hand throttle transmission pull rod and the second hand throttle transmission pull rod are conducive to transmitting the power of the hand throttle mechanism to the second pivot through two of the first pivot arms in the first pivot; the first foot throttle transmission pull rod and the second foot throttle transmission pull rod are conducive to transmitting the power of the foot throttle mechanism to the second pivot through two of the first pivot arms in the first pivot.

[0042] Preferably, as Figure 1 and Figure 6 shown, the hand throttle mechanism 1 includes a hand throttle lever 101 and a hand throttle pull rod arm 102; both ends of the hand throttle pull rod arm 102 are respectively connected to the hand throttle lever 101 and the end of the first hand throttle transmission pull rod 111 away from the first pivot arm 33.

[0043] The beneficial effects of adopting the above preferred scheme are as follows: The hand throttle lever is conducive to driving the hand throttle pull rod arm to rotate by rotation, and then driving the first hand throttle transmission pull rod and the subsequent connected first pivot to rotate, realizing the transmission of power.

[0044] Preferably, as Figure 4 shown, the second pivot 4 includes: a second fixed bracket 41, a second rotating shaft 42, two rotating bearings 43, two second pivot arms 44 and a transmission arm 45; the second fixed bracket 41 is a U-shaped plate-like structure installed on the mounting bracket 7. The two rotating bearings 43 respectively pass through two side walls of the second fixed bracket 41, and the two rotating bearings 43 are sleeved on the second rotating shaft 42. The two second pivot arms 44 are arranged side by side on one end side wall of the second rotating shaft 42, and the transmission arm 45 is arranged on the other end side wall of the second rotating shaft 42. The second pivot arms 44 and the transmission arm 45 are respectively arranged on both sides outside the second fixed bracket 41.

[0045] The beneficial effects of adopting the above preferred solution are as follows: The rotating bearing is beneficial to ensuring the smooth rotation of the second rotating shaft and the second rotating shaft rocker arm and the transmission rocker arm thereon, thereby achieving the smooth transmission of power.

[0046] Preferably, as Figure 7 shown, the foot throttle mechanism 2 includes: a foot throttle pedal 201, a foot throttle pedal rocker arm 202, a hub 203, and a foot throttle pull rod rocker arm 204; the foot throttle pedal rocker arm 202 and the foot throttle pull rod rocker arm 204 are both arranged on the outer wall of the hub 203, the foot throttle pedal 201 is installed at one end of the foot throttle pedal rocker arm 202 away from the hub 203, and the foot throttle pull rod rocker arm 204 is connected to one end of the first foot throttle transmission pull rod 121 away from the first rotating shaft rocker arm 33.

[0047] The beneficial effects of adopting the above preferred solution are as follows: Stepping on the foot throttle pedal is beneficial to driving the hub to rotate by the foot throttle pedal rocker arm, thereby driving the foot throttle pull rod rocker arm and the first foot throttle transmission pull rod and the first rotating shaft connected thereto in sequence, and achieving the transmission of power.

[0048] Preferably, as Figure 5 shown, an arm chute 441 is provided on the second rotating shaft rocker arm 44, the arm chute 441 is an arc-shaped through hole, and one end of the second manual throttle transmission pull rod 112 away from the first rotating shaft rocker arm 33 and one end of the second foot throttle transmission pull rod 122 away from the first rotating shaft rocker arm 33 are both bent and respectively pass through the arm chutes 441 on the two second rotating shaft rocker arms 44.

[0049] The beneficial effects of adopting the above preferred solution are as follows: When driving the second rotating shaft rocker arm to rotate by one of the second manual throttle transmission pull rod and the second foot throttle transmission pull rod, the other of the second manual throttle transmission pull rod and the second foot throttle transmission pull rod can slide in the arm chute, so that the other of the second manual throttle transmission pull rod and the second foot throttle transmission pull rod has no contact point and cannot achieve power transmission, thereby ensuring to avoid the pull rod conflict during the operation of the manual throttle mechanism and the foot throttle mechanism, and enabling the throttle to be controlled only by the manual throttle mechanism or the foot throttle mechanism at the same time.

[0050] Preferably, as Figure 5As shown, the pull rod assembly further includes two baffles 15 and two limit pins 16; the two baffles 15 are respectively sleeved on the bent ends of the second hand throttle transmission pull rod 112 after passing through the rocker chute 441 and the bent ends of the second foot throttle transmission pull rod 122 after passing through the rocker chute 441, and the two limit pins 16 respectively pass through the bent ends of the second hand throttle transmission pull rod 112 and the bent ends of the second foot throttle transmission pull rod 122, and the baffle 15 is arranged between the limit pin 16 and the second rotating shaft rocker 44.

[0051] The beneficial effects of adopting the above preferred scheme are as follows: the baffle and the limit pin are beneficial to ensuring that the second hand throttle transmission pull rod and the second foot throttle transmission pull rod will not become loose when driving the second rotating shaft rocker to rotate, thereby ensuring the smooth transmission of power.

[0052] Preferably, as Figure 2 shown, the pull rod assembly further includes a rotating shaft transmission pull rod 13 and an engine throttle pull rod 14; the two ends of the rotating shaft transmission pull rod 13 are respectively connected to one of the first rotating shaft rockers 33 of the transmission rocker 45 and the third first rotating shaft 3, and the two ends of the engine throttle pull rod 14 are respectively connected to the other first rotating shaft rocker 33 of the third first rotating shaft 3 and the throttle rocker of the engine 5.

[0053] The beneficial effects of adopting the above preferred scheme are as follows: the rotating shaft transmission pull rod is beneficial to transmitting the power generated by the rotation of the second rotating shaft to the third first rotating shaft, thereby driving the engine throttle pull rod and the throttle rocker of the engine connected thereto to rotate, and finally realizing the control of the engine throttle.

[0054] Preferably, as Figure 1 and Figure 2 shown, the flameout pull rod mechanism 6 includes a first flameout transmission pull rod 61 and a second flameout transmission pull rod 62; the two ends of the second flameout transmission pull rod 62 are respectively connected to the first flameout transmission pull rod 61 and the flameout rocker of the engine 5.

[0055] The beneficial effects of adopting the above preferred scheme are as follows: the first flameout transmission pull rod and the second flameout transmission pull rod are beneficial to realizing the flameout of the engine throttle through the pull rod.

[0056] The working process of the present invention is introduced below:

[0057] As Figures 1 to 7As shown in the figure, the throttle of the engine 5 is controlled by the manual throttle mechanism 1: when the manual throttle is increased, the manual throttle lever 101 rotates clockwise, driving the manual throttle lever rocker arm 102 to rotate clockwise. The clockwise rotation of the manual throttle lever rocker arm 102 drives the entire first manual throttle transmission rod 111 to move to the left. The leftward movement of the first manual throttle transmission rod 111 drives the first first rotating shaft 3 to rotate counterclockwise. The counterclockwise rotation of the first first rotating shaft 3 drives the second manual throttle transmission rod 112 to move downward. The downward movement of the second manual throttle transmission rod 112 drives the second rotating shaft 4 to rotate counterclockwise. The counterclockwise rotation of the second rotating shaft 4 drives the rotating shaft transmission rod 13 to move downward. The downward movement of the rotating shaft transmission rod 13 drives the third first rotating shaft 3 to rotate counterclockwise. The counterclockwise rotation of the third first rotating shaft 3 drives the engine throttle rod 14 to move to the right. The rightward movement of the engine throttle rod 14 drives the throttle rocker arm of the engine 5 to rotate clockwise, thus achieving the effect of controlling the engine throttle;

[0058] The throttle of the engine 5 is controlled by the foot throttle mechanism 2: when the foot throttle is increased, the foot throttle lever rocker arm 204 rotates clockwise, driving the first foot throttle transmission rod 121 to move to the right. The rightward movement of the first foot throttle transmission rod 121 drives the second first rotating shaft 3 to rotate counterclockwise. The counterclockwise rotation of the second first rotating shaft 3 drives the second foot throttle transmission rod 122 to move downward. The downward movement of the second foot throttle transmission rod 122 drives the second rotating shaft 4 to rotate counterclockwise. The counterclockwise rotation of the second rotating shaft 4 drives the rotating shaft transmission rod 13 to move downward. The downward movement of the rotating shaft transmission rod 13 drives the third first rotating shaft 3 to rotate counterclockwise. The counterclockwise rotation of the third first rotating shaft 3 drives the engine throttle rod 14 to move to the right. The rightward movement of the engine throttle rod 14 drives the throttle rocker arm of the engine 5 to rotate clockwise, thus achieving the effect of controlling the engine throttle;

[0059] Principle of flameout operation: When the first flameout transmission rod 61 is pulled, the first flameout transmission rod 61 drives the second flameout transmission rod 62 to displace, and the second flameout transmission rod 62 drives the flameout rocker arm of the engine 5 to displace, thus achieving the effect of controlling the engine to flame out.

[0060] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model.

[0061] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0062] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0063] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0064] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0065] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A structure for operating the throttle by a pull rod, characterized in that, Comprising: A hand throttle mechanism (1), a foot throttle mechanism (2), three first rotating shafts (3), a second rotating shaft (4), an engine (5), a flameout pull rod mechanism (6) and a mounting bracket (7); The first rotating shaft (3) and the second rotating shaft (4) are mounted on the mounting bracket (7). The hand throttle mechanism (1) and the foot throttle mechanism (2) are respectively connected to two of the first rotating shafts (3) through a pull rod assembly. Both of the first rotating shafts (3) are connected to the second rotating shaft (4) through the pull rod assembly. A connection is made between the second rotating shaft (4) and the third first rotating shaft (3) through the pull rod assembly. A connection is made between the third first rotating shaft (3) and the engine (5) through the pull rod assembly. A connection is made between the flameout pull rod mechanism (6) and the engine (5) through the pull rod assembly.

2. The structure of a throttle controlled by a pull rod according to claim 1, wherein The first rotating shaft (3) includes: a first fixed bracket (31), a first rotating shaft (32) and two first rotating shaft rocker arms (33); the first fixed bracket (31) is a U-shaped plate-like structure mounted on the mounting bracket (7). The first rotating shaft (32) is disposed within the first fixed bracket (31). Both ends of the first rotating shaft (32) are rotatably mounted on the inner walls of both sides of the first fixed bracket (31). The two first rotating shaft rocker arms (33) are mounted on the outer wall of the first rotating shaft (32).

3. The structure of a throttle controlled by a pull rod according to claim 2, characterized in that, The pull rod assembly includes a hand throttle pull rod (11) and a foot throttle pull rod (12); the hand throttle pull rod (11) is composed of a first hand throttle transmission pull rod (111) and a second hand throttle transmission pull rod (112). One end of the first hand throttle transmission pull rod (111) and one end of the second hand throttle transmission pull rod (112) are respectively connected to the two first rotating shaft rocker arms (33) in the first first rotating shaft (3); The foot throttle pull rod (12) is composed of a first foot throttle transmission pull rod (121) and a second foot throttle transmission pull rod (122). One end of the first foot throttle transmission pull rod (121) and one end of the second foot throttle transmission pull rod (122) are respectively connected to the two first rotating shaft rocker arms (33) in the second first rotating shaft (3).

4. The structure of operating the throttle by a pull rod according to claim 3, wherein The hand throttle mechanism (1) includes a hand throttle control lever (101) and a hand throttle pull rod rocker arm (102); both ends of the hand throttle pull rod rocker arm (102) are respectively connected to the hand throttle control lever (101) and the end of the first hand throttle transmission pull rod (111) away from the first rotating shaft rocker arm (33).

5. The structure for operating the throttle by a pull rod according to claim 3, wherein, The second rotating shaft (4) includes: a second fixed bracket (41), a second rotating shaft (42), two rotating bearings (43), two second rotating shaft rocker arms (44) and a transmission rocker arm (45); the second fixed bracket (41) is a U-shaped plate-like structure mounted on the mounting bracket (7), the two rotating bearings (43) respectively pass through two side walls of the second fixed bracket (41), the two rotating bearings (43) are sleeved on the second rotating shaft (42), the two second rotating shaft rocker arms (44) are arranged side by side on one end side wall of the second rotating shaft (42), the transmission rocker arm (45) is arranged on the other end side wall of the second rotating shaft (42), and the second rotating shaft rocker arms (44) and the transmission rocker arm (45) are respectively arranged on two sides outside the second fixed bracket (41).

6. The structure of operating the throttle by a pull rod according to claim 5, characterized in that, The foot throttle mechanism (2) includes: a foot throttle pedal (201), a foot throttle pedal rocker arm (202), a hub (203) and a foot throttle pull rod rocker arm (204); the foot throttle pedal rocker arm (202) and the foot throttle pull rod rocker arm (204) are both arranged on the outer wall of the hub (203), the foot throttle pedal (201) is mounted on one end of the foot throttle pedal rocker arm (202) away from the hub (203), and the foot throttle pull rod rocker arm (204) is connected to one end of the first foot throttle transmission pull rod (121) away from the first rotating shaft rocker arm (33).

7. The structure of a throttle controlled by a pull rod according to claim 6, wherein, A rocker arm chute (441) is arranged on the second rotating shaft rocker arm (44), the rocker arm chute (441) is an arc-shaped through hole, and one end of the second hand throttle transmission pull rod (112) away from the first rotating shaft rocker arm (33) and one end of the second foot throttle transmission pull rod (122) away from the first rotating shaft rocker arm (33) are both bent and respectively pass through the rocker arm chutes (441) on the two second rotating shaft rocker arms (44).

8. The structure of operating the throttle by a pull rod according to claim 7, wherein The pull rod assembly further includes two baffles (15) and two limit pins (16); the two baffles (15) are respectively sleeved on the bent ends of the second hand throttle transmission pull rod (112) after passing through the rocker arm chute (441) and the bent ends of the second foot throttle transmission pull rod (122) after passing through the rocker arm chute (441), the two limit pins (16) respectively pass through the bent ends of the second hand throttle transmission pull rod (112) and the bent ends of the second foot throttle transmission pull rod (122), and the baffle (15) is arranged between the limit pin (16) and the second rotating shaft rocker arm (44).

9. The structure of a throttle controlled by a pull rod according to claim 5, characterized in that, The pull rod assembly further includes a rotating shaft transmission pull rod (13) and an engine throttle pull rod (14); two ends of the rotating shaft transmission pull rod (13) are respectively connected to one of the first rotating shaft rocker arms (33) of the transmission rocker arm (45) and the third first rotating shaft (3), and two ends of the engine throttle pull rod (14) are respectively connected to the other first rotating shaft rocker arm (33) of the third first rotating shaft (3) and the throttle rocker arm of the engine (5).

10. The structure for operating the throttle by means of a pull rod according to claim 1, characterized in that, The flameout pull rod mechanism (6) includes a first flameout transmission pull rod (61) and a second flameout transmission pull rod (62); both ends of the second flameout transmission pull rod (62) are respectively connected to the first flameout transmission pull rod (61) and the flameout rocker arm of the engine (5).

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