Accelerator device and riding type mower

Abstract

The invention discloses an accelerator device and a riding type mower. The accelerator device comprises a signal transmission electronic part, an accelerator mechanism and a brake mechanism. The accelerator mechanism comprises a swing arm fixed to the rotating shaft, an accelerator pedal arranged on the swing arm and an accelerator shifting piece movably arranged on the rotating shaft in a sleeving mode. The accelerator shifting piece is connected with the support through a first elastic piece. The brake mechanism comprises a brake piece fixed to the rotating shaft and a brake shifting piece movably arranged on the rotating shaft in a sleeving mode, and the brake shifting piece is connected with the support through a second elastic piece. When the accelerator pedal is treaded, the accelerator shifting piece rotates along with the accelerator pedal, so that the first elastic piece is stretched, and the signal transmission electronic piece is triggered to output a forward signal; when the brake part is treaded, the brake shifting piece rotates along with the brake part, the second elastic part is stretched, and the signal transmission electronic part is triggered to output a retreating signal. The structure is simple, the number of parts is small, the manufacturing cost is low, and part collision, vibration, abnormal sound and part damage are not prone to occurring in the operation process.

Description

Technical Field

[0001] The invention belongs to the technical field of gardening equipment, and in particular relates to a throttle device and a riding lawn mower. Background Art

[0002] Large gardening machines such as riding lawn mowers are usually equipped with throttles and brakes. Traditional throttle and brake mechanisms are independently set up, with a relatively complex structure and many parts. In particular, riding lawn mowers that use electric power are usually equipped with a throttle that can move forward and backward in both directions to move the machine forward and backward, and the throttle structure is more complex. Since riding lawn mowers are mostly driven on unpaved areas such as outdoor grass, they are bumpy during operation and the body vibrates severely. The complex structure of the throttle and brake is prone to vibration, abnormal noise, and parts damage. Summary of the invention

[0003] The object of the present invention is to overcome the deficiencies in the prior art and to provide a throttle device and a riding lawn mower, which have a simple structure, fewer parts, low manufacturing cost, and are less likely to cause parts collision, vibration, abnormal noise, and parts damage during operation.

[0004] The present invention provides the following technical solutions: In a first aspect, a throttle device is provided, comprising: A signal transmission electronic component is installed on the bracket, and the signal transmission electronic component is connected to a rotating shaft; A throttle mechanism, comprising a swing arm fixed on the rotating shaft, a throttle pedal arranged on the swing arm, and a throttle paddle movably sleeved on the rotating shaft, wherein the throttle paddle is connected to the bracket via a first elastic member; A brake mechanism, comprising a brake member fixed on the rotating shaft and a brake paddle movably sleeved on the rotating shaft, wherein the brake paddle is connected to the bracket via a second elastic member; Among them, when the accelerator pedal is stepped on, the accelerator paddle rotates accordingly, so that the first elastic member is stretched, and the signal transmission electronic component is triggered by the rotating shaft to output a forward signal; when the brake member is stepped on, the brake paddle rotates accordingly, so that the second elastic member is stretched, and the signal transmission electronic component is triggered by the rotating shaft to output a reverse signal.

[0005] Furthermore, the bracket includes a first side panel, a horizontal panel and a second side panel which are vertically connected in sequence, the first side panel is provided with a groove for accommodating the signal transmission electronic component, and the second side panel is provided with a first mounting hole for installing the rotating shaft; the swing arm is arranged in a space enclosed by the first side panel, the horizontal panel and the second side panel, and the second side panel is provided with a limit frame for limiting the swing arm.

[0006] Furthermore, the swing arm includes a support arm and a throttle mounting tube disposed at one end of the support arm, and the throttle pedal is disposed at the other end of the support arm; The throttle mounting tube is provided with a first bolt hole, the rotating shaft is provided with a third bolt hole corresponding to the first bolt hole, and the swing arm and the rotating shaft are fixedly connected by a first bolt assembly that penetrates the first bolt hole and the third bolt hole.

[0007] Furthermore, a throttle push block is also provided on the throttle mounting tube, and a first accompanying column cooperating with the throttle push block is provided on the throttle paddle; The throttle paddle is also provided with a first limiting protrusion, and the bracket is provided with a first limiting block matched with the first limiting protrusion; When the accelerator pedal is stepped on, the accelerator push block and the first accompanying column are in contact with each other, and the first limiting protrusion and the first limiting block are separated; when the brake member is stepped on, the first limiting protrusion and the first limiting block are in contact with each other, and the accelerator push block and the first accompanying column are separated.

[0008] Furthermore, the brake component includes a brake plate and a brake pedal and a brake mounting cylinder arranged at both ends of the brake plate; The brake mounting cylinder is provided with a second bolt hole, the rotating shaft is provided with a fourth bolt hole corresponding to the second bolt hole, and the brake member and the rotating shaft are fixedly connected by a second bolt assembly penetrating the second bolt hole and the fourth bolt hole.

[0009] Furthermore, a brake push block is also provided on the brake mounting cylinder, and a second accompanying column matching with the brake push block is provided on the brake paddle; The brake paddle is also provided with a second limiting protrusion, and the bracket is provided with a second limiting block matched with the second limiting protrusion; When the brake member is stepped on, the brake push block and the second accompanying column are in contact with each other, and the second limiting protrusion and the second limiting block are separated; when the accelerator pedal is stepped on, the second limiting protrusion and the second limiting block are in contact with each other, and the brake push block and the second accompanying column are separated.

[0010] Furthermore, the throttle paddle is provided with a second mounting hole for mounting the rotating shaft; and the brake paddle is provided with a third mounting hole for mounting the rotating shaft.

[0011] Furthermore, the bracket is provided with a first fixing plate, the throttle paddle is provided with a first fixing hole, one end of the first elastic member is connected to the first fixing plate, and the other end is connected to the throttle paddle through the first fixing hole; The bracket is provided with a second fixing plate, the brake paddle is provided with a second fixing hole, one end of the second elastic member is connected to the second fixing plate, and the other end is connected to the brake paddle through the second fixing hole.

[0012] Furthermore, a shielding ring is sleeved on the outer portion of the rotating shaft, and the shielding ring is in contact with a side surface of the second side plate close to the brake member.

[0013] In a second aspect, a riding lawn mower is provided, comprising the throttle device described in the first aspect.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) The throttle device provided by the present invention includes a signal transmission electronic component, a throttle mechanism and a brake mechanism. When the throttle pedal is stepped on, the throttle paddle rotates accordingly, so that the first elastic component is stretched, and the signal transmission electronic component is triggered to output a forward signal. When the throttle pedal is released, the throttle paddle, the swing arm and the throttle pedal are reset under the action of the first elastic component; when the brake component is stepped on, the brake paddle rotates accordingly, so that the second elastic component is stretched, and the signal transmission electronic component is triggered to output a reverse signal. When the brake component is released, the brake paddle and the brake component are reset under the action of the second elastic component. (2) The throttle device of the present invention has a simple structure, few parts, low manufacturing cost, and is not prone to parts collision, abnormal noise, and parts damage during operation, and the device has strong operating stability. In addition, the presence of the first elastic member and the second elastic member can play a damping and shock-absorbing role, reduce vibration during the operation of the device, further reduce parts damage, and extend the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a throttle device in an embodiment of the present invention; Figure 2 is a schematic diagram of the exploded structure of the throttle device in an embodiment of the present invention; Figure 3 is a schematic structural diagram of a bracket in an embodiment of the present invention; Figure 4 is a schematic structural diagram of a swing arm and an accelerator pedal in an embodiment of the present invention; Figure 5 is a schematic structural diagram of a brake component in an embodiment of the present invention; Figure 6 is a schematic structural diagram of a throttle paddle in an embodiment of the present invention; Figure 7 is a schematic structural diagram of a brake paddle according to an embodiment of the present invention; Figure 8 is a schematic diagram of the structure of the throttle device in a normal state in an embodiment of the present invention; Fig. 9is a schematic side view of the structure of the throttle device in a normal state according to an embodiment of the present invention; Fig.10 is a schematic structural diagram of the throttle device when the accelerator pedal is stepped on in an embodiment of the present invention; Fig.11 is a structural schematic diagram of the throttle device from another perspective when the accelerator pedal is stepped on in an embodiment of the present invention; Fig.12 is a schematic diagram of the side structure of the throttle device when the accelerator pedal is stepped on in an embodiment of the present invention; Fig.13 is a schematic structural diagram of the throttle device when the brake member is stepped on in an embodiment of the present invention; Fig.14 It is a schematic diagram of the side structure of the throttle device when the brake member is stepped on in an embodiment of the present invention.

[0016] The markings in the figure are: 1. bracket; 101. first side plate; 102. cross plate; 103. second side plate; 104. first limit block; 105. second limit block; 106. limit frame; 107. first mounting hole; 108. second fixing plate; 2. signal transmission electronic components; 3. swing arm; 301. support arm; 302. throttle mounting tube; 303. first bolt hole; 304. throttle push block; 4. throttle pedal; 5. throttle paddle; 501. first accompanying column; 502. second mounting hole; 503. first limit convex ; 504, first fixing hole; 6, brake paddle; 601, second accompanying column; 602, third mounting hole; 603, second limiting convex; 604, second fixing hole; 7, brake member; 701, brake plate; 702, brake pedal; 703, brake mounting cylinder; 704, second bolt hole; 705, brake push block; 8, rotating shaft; 801, third bolt hole; 802, fourth bolt hole; 803, shielding ring; 9, first elastic member; 10, second elastic member; 11, first bolt assembly; 12, second bolt assembly. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0018] It should be noted that, in the description of the present invention, the directions or positional relationships indicated by terms such as "front", "rear", "left", "right", "up", "down", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0019] In the description of the present invention, it is to be understood that the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0020] Example 1

[0021] like Figure 1 As shown, this embodiment provides a throttle device, including a signal transmission electronic component 2, a throttle mechanism and a brake mechanism.

[0022] like Figure 1 As shown, the signal transmission electronic component 2 is installed on the bracket 1, and the signal transmission electronic component 2 is connected to the rotating shaft 8. The signal transmission electronic component 2 outputs a forward or backward signal according to the different rotation directions of the rotating shaft 8.

[0023] like Figure 1~Figure 3 As shown, the bracket 1 includes a first side plate 101, a horizontal plate 102 and a second side plate 103 which are vertically connected in sequence. The first side plate 101 is provided with a groove for accommodating the signal transmission electronic component 2, and the second side plate 103 is provided with a first mounting hole 107 for mounting the rotating shaft 8.

[0024] like Figure 1~Figure 4 As shown, the throttle mechanism includes a swing arm 3 fixed on the rotating shaft 8, a throttle pedal 4 arranged on the swing arm 3, and a throttle paddle 5 movably sleeved on the rotating shaft 8, and the throttle paddle 5 is connected to the bracket 1 through a first elastic member 9. The swing arm 3 is arranged in a space surrounded by the first side plate 101, the cross plate 102 and the second side plate 103, and the second side plate 103 is provided with a limit frame 106 for limiting the swing arm 3 to prevent the swing arm 3 from exceeding the preset swing range and causing damage to the parts.

[0025] like Figure 2 and Figure 4 As shown, the swing arm 3 includes a support arm 301 and a throttle mounting tube 302 disposed at one end of the support arm 301, and the throttle pedal 4 is disposed at the other end of the support arm 301; the throttle mounting tube 302 is provided with a first bolt hole 303, and the rotating shaft 8 is provided with a third bolt hole 801 corresponding to the first bolt hole 303, and the swing arm 3 and the rotating shaft 8 are fixedly connected by a first bolt assembly 11 penetrating the first bolt hole 303 and the third bolt hole 801. The first bolt assembly 11 may specifically include a bolt penetrating the first bolt hole 303 and the third bolt hole 801, and a nut, a gasket and other structures matching the bolt.

[0026] like Figure 3 , Figure 4 and Figure 6 As shown, the throttle mounting tube 302 is also provided with a throttle push block 304, and the throttle paddle 5 is provided with a first accompanying column 501 that matches the throttle push block 304; the throttle paddle 5 is also provided with a first limiting protrusion 503, and the first side plate 101 of the bracket 1 is provided with a first limiting block 104 that matches the first limiting protrusion 503. When the throttle pedal 4 is stepped on, the swing arm 3 rotates accordingly, and the throttle push block 304 and the first accompanying column 501 are in contact with each other, thereby pushing the throttle paddle 5 to rotate, so that the first elastic member 9 is stretched, and at this time, the first limiting protrusion 503 and the first limiting block 104 are separated; when the brake member 7 is stepped on, the first limiting protrusion 503 and the first limiting block 104 are in contact with each other, and the throttle push block 304 and the first accompanying column 501 are separated, so as to limit the throttle paddle 5 and prevent the throttle paddle 5 from rotating with the rotating shaft 8.

[0027] like Figure 1 , Figure 2 and Figure 5 As shown, the brake mechanism includes a brake member 7 fixed on the rotating shaft 8 and a brake paddle 6 movably sleeved on the rotating shaft 8 , and the brake paddle 6 is connected to the bracket 1 through a second elastic member 10 .

[0028] like Figure 2 and Figure 5 As shown, the brake member 7 includes a brake plate 701, a brake pedal 702 and a brake mounting cylinder 703 arranged at both ends of the brake plate 701; the brake mounting cylinder 703 is provided with a second bolt hole 704, and the rotating shaft 8 is provided with a fourth bolt hole 802 corresponding to the second bolt hole 704, and the brake member 7 and the rotating shaft 8 are fixedly connected by a second bolt assembly 12 penetrating the second bolt hole 704 and the fourth bolt hole 802. The second bolt assembly 12 may specifically include a bolt penetrating the second bolt hole 704 and the fourth bolt hole 802, and a nut, a gasket and other structures matching the bolt.

[0029] like Figure 3 , Figure 5 and Figure 7As shown, a brake push block 705 is also provided on the brake mounting cylinder 703, and a second accompanying column 601 matching with the brake push block 705 is provided on the brake paddle 6; a second limiting protrusion 603 is also provided on the brake paddle 6, and a second limiting block 105 matching with the second limiting protrusion 603 is provided on the bracket 1. When the brake member 7 is stepped on, the brake push block 705 and the second accompanying column 601 are in contact with each other, thereby pushing the brake paddle 6 to rotate, so that the second elastic member 10 is stretched, and at this time, the second limiting protrusion 603 and the second limiting block 105 are separated; when the accelerator pedal 4 is stepped on, the second limiting protrusion 603 and the second limiting block 105 are in contact with each other, and the brake push block 705 and the second accompanying column 601 are separated, so as to limit the brake paddle 6 and prevent the brake paddle 6 from rotating with the rotating shaft 8.

[0030] like Figure 2 , Figure 6 and Figure 7 As shown, the throttle paddle 5 is provided with a second mounting hole 502 for mounting the rotating shaft 8; the brake paddle 6 is provided with a third mounting hole 602 for mounting the rotating shaft 8. A shielding ring 803 is sleeved on the outer surface of the rotating shaft 8, one side of the shielding ring 803 is in contact with a side of the second side plate 103 close to the brake member 7, and the other side of the shielding ring 803 is in contact with the brake paddle 6. That is, when the device is installed, the rotating shaft 8 first passes through the first mounting hole 107 on the bracket 1, and the shielding ring 803 contacts the second side plate 103. Then, the end of the rotating shaft 8 located inside the bracket 1 passes through the throttle mounting tube 302 and the second mounting hole 502 of the throttle paddle 5 in turn and is connected to the signal transmission electronic component 2. The side of the rotating shaft 8 located outside the bracket 1 passes through the brake paddle 6 and the brake mounting tube 703 in turn. Finally, the throttle mounting tube 302 and the brake mounting tube 703 are fixed by the first bolt assembly 11 and the second bolt assembly 12, so as to realize the fixed installation of the swing arm 3 and the rotating shaft 8 and the brake component 7 and the rotating shaft 8.

[0031] like Figure 3 , Figure 6 and Figure 7As shown, a first fixing plate is provided on the first side plate 101 of the bracket 1, the throttle paddle 5 is provided with a first fixing hole 504, one end of the first elastic member 9 is connected to the first fixing plate, and the other end is connected to the throttle paddle 5 through the first fixing hole 504; a second fixing plate 108 is provided on the second side plate 103 of the bracket 1, the brake paddle 6 is provided with a second fixing hole 604, one end of the second elastic member 10 is connected to the second fixing plate 108, and the other end is connected to the brake paddle 6 through the second fixing hole 604. In this embodiment, both the first elastic member 9 and the second elastic member 10 are springs (the springs are not specifically connected to the paddles in the figure, they are only schematic diagrams). The first elastic member 9 and the second elastic member 10 can be used for resetting the throttle paddle 5, the swing arm 3, the throttle pedal 4, the brake paddle 6, and the brake member 7, and can also play a role in damping and shock absorption, reducing vibration during the operation of the device, further reducing damage to parts, and extending the service life of the device.

[0032] In this embodiment, when the accelerator pedal 4 is stepped on, the accelerator paddle 5 rotates accordingly, so that the first elastic member 9 is stretched, and the signal transmission electronic component 2 is triggered by the rotating shaft 8 to output a forward signal; when the brake member 7 is stepped on, the brake paddle 6 rotates accordingly, so that the second elastic member 10 is stretched, and the signal transmission electronic component 2 is triggered by the rotating shaft 8 to output a reverse signal.

[0033] Specifically, the working principle of the throttle device provided in this embodiment is as follows: like Figure 1 , Figure 8 and Fig. 9 As shown, under normal conditions, the throttle push block 304 on the swing arm 3 and the first accompanying column 501 on the throttle paddle 5 abut against each other, and the first limiting protrusion 503 on the throttle paddle 5 abuts against the first limiting block 104 on the bracket 1; the brake push block 705 on the brake component 7 and the second accompanying column 601 on the brake paddle 6 abut against each other, and the second limiting protrusion 603 on the brake paddle 6 abuts against the second limiting block 105 on the bracket 1.

[0034] like Figure 10~Figure 12As shown, when the accelerator pedal 4 is stepped on, the swing arm 3 and the rotating shaft 8 rotate accordingly, and the signal transmission electronic component 2 is triggered by the rotating shaft 8 to output a forward signal. At this time, the accelerator push block 304 and the first accompanying column 501 are in contact with each other, thereby pushing the accelerator paddle 5 to rotate, causing the first elastic member 9 to stretch. At the same time, the first limiting protrusion 503 and the first limiting block 104 are separated; and the second limiting protrusion 603 and the second limiting block 105 are in contact with each other, limiting the brake paddle 6. Since the brake member 7 also rotates with the rotating shaft at this time, the brake push block 705 and the second accompanying column 601 are separated. When the accelerator pedal 4 is released, under the action of the first elastic member 9, the accelerator paddle 5, the swing arm 3 and the accelerator pedal 4 are reset, and the swing arm 3, the accelerator paddle 5 and the brake member 7 all return to normal.

[0035] like Fig.13 and Fig.14 As shown, when the brake pedal 702 is stepped on, the brake member 7 and the rotating shaft 8 rotate accordingly, and the signal transmission electronic member 2 is triggered by the rotating shaft 8 to output a backward signal. At this time, the brake push block 705 and the second accompanying column 601 are in contact with each other, thereby pushing the brake paddle 6 to rotate, so that the second elastic member 10 is stretched, and at the same time, the second limiting protrusion 603 and the second limiting block 105 are separated; and the first limiting protrusion 503 and the first limiting block 104 are in contact with each other, limiting the throttle paddle 5. Since the swing arm 3 also rotates with the rotating shaft 8 at this time, the throttle push block 304 and the first accompanying column 501 are separated. When the brake pedal 702 is released, under the action of the second elastic member 10, the brake paddle 6 and the brake member 7 are reset, and the brake paddle 6, the brake member 7 and the swing arm 3 all return to a normal state.

[0036] Example 2

[0037] This embodiment provides a riding lawn mower equipped with the throttle device described in Embodiment 1.

[0038] The throttle device provided by the present invention has a simple structure, fewer parts, and low manufacturing cost. It is not easy for parts to collide, make abnormal noises, or be damaged during operation, and the device has strong operating stability.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A throttle device, characterized in that: include: A signal transmission electronic component is installed on the bracket, and the signal transmission electronic component is connected to a rotating shaft; A throttle mechanism, comprising a swing arm fixed on the rotating shaft, a throttle pedal arranged on the swing arm, and a throttle paddle movably sleeved on the rotating shaft, wherein the throttle paddle is connected to the bracket via a first elastic member; A brake mechanism, comprising a brake member fixed on the rotating shaft and a brake paddle movably sleeved on the rotating shaft, wherein the brake paddle is connected to the bracket via a second elastic member; When the accelerator pedal is stepped on, the accelerator paddle rotates accordingly, so that the first elastic member is stretched, and the signal transmission electronic member is triggered by the rotating shaft to output a forward signal; When the brake member is stepped on, the brake paddle rotates accordingly, so that the second elastic member is stretched, and the signal transmission electronic member is triggered by the rotating shaft to output a retreat signal.

2. The throttle device according to claim 1, characterized in that: The bracket includes a first side plate, a horizontal plate and a second side plate which are vertically connected in sequence, the first side plate is provided with a groove for accommodating the signal transmission electronic component, and the second side plate is provided with a first mounting hole for installing the rotating shaft; the swing arm is arranged in a space enclosed by the first side plate, the horizontal plate and the second side plate, and the second side plate is provided with a limit frame for limiting the swing arm.

3. The throttle device according to claim 1, characterized in that: The swing arm includes a support arm and a throttle mounting tube arranged at one end of the support arm, and the throttle pedal is arranged at the other end of the support arm; The throttle mounting tube is provided with a first bolt hole, the rotating shaft is provided with a third bolt hole corresponding to the first bolt hole, and the swing arm and the rotating shaft are fixedly connected by a first bolt assembly that penetrates the first bolt hole and the third bolt hole.

4. The throttle device according to claim 3, characterized in that: The throttle mounting tube is also provided with a throttle push block, and the throttle paddle is provided with a first accompanying column matched with the throttle push block; The throttle paddle is also provided with a first limiting protrusion, and the bracket is provided with a first limiting block matched with the first limiting protrusion; When the accelerator pedal is stepped on, the accelerator push block and the first accompanying column are in contact with each other, and the first limiting protrusion and the first limiting block are separated; when the brake member is stepped on, the first limiting protrusion and the first limiting block are in contact with each other, and the accelerator push block and the first accompanying column are separated.

5. The throttle device according to claim 1, characterized in that: The brake component includes a brake plate and a brake pedal and a brake mounting cylinder arranged at both ends of the brake plate; The brake mounting cylinder is provided with a second bolt hole, the rotating shaft is provided with a fourth bolt hole corresponding to the second bolt hole, and the brake member and the rotating shaft are fixedly connected by a second bolt assembly penetrating the second bolt hole and the fourth bolt hole.

6. The throttle device according to claim 5, characterized in that: The brake mounting cylinder is also provided with a brake push block, and the brake paddle is provided with a second accompanying column that matches the brake push block; The brake paddle is also provided with a second limiting protrusion, and the bracket is provided with a second limiting block matched with the second limiting protrusion; When the brake member is stepped on, the brake push block and the second accompanying column are in contact with each other, and the second limiting protrusion and the second limiting block are separated; when the accelerator pedal is stepped on, the second limiting protrusion and the second limiting block are in contact with each other, and the brake push block and the second accompanying column are separated.

7. The throttle device according to claim 1, characterized in that: The throttle paddle is provided with a second mounting hole for mounting the rotating shaft; the brake paddle is provided with a third mounting hole for mounting the rotating shaft.

8. The throttle device according to claim 1, characterized in that: The bracket is provided with a first fixing plate, the throttle paddle is provided with a first fixing hole, one end of the first elastic member is connected to the first fixing plate, and the other end is connected to the throttle paddle through the first fixing hole; The bracket is provided with a second fixing plate, the brake paddle is provided with a second fixing hole, one end of the second elastic member is connected to the second fixing plate, and the other end is connected to the brake paddle through the second fixing hole.

9. The throttle device according to claim 2, characterized in that: A shielding ring is sleeved on the outer side of the rotating shaft, and the shielding ring is in contact with a side surface of the second side plate close to the brake member.

10. A riding lawn mower, characterized in that: It comprises the throttle device as claimed in any one of claims 1 to 9.

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