CN114982483B - Parking brake device and riding mower - Google Patents
Parking brake device and riding mower Download PDFInfo
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- CN114982483B CN114982483B CN202210714801.9A CN202210714801A CN114982483B CN 114982483 B CN114982483 B CN 114982483B CN 202210714801 A CN202210714801 A CN 202210714801A CN 114982483 B CN114982483 B CN 114982483B
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- parking
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- transmission
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D69/00—Driving mechanisms or parts thereof for harvesters or mowers
- A01D69/10—Brakes
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/001—Accessories not otherwise provided for
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- Environmental Sciences (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
The application relates to the technical field of mowers, in particular to a parking brake device and a riding mower. The parking brake device comprises a parking brake assembly and a parking assembly; the parking assembly comprises a pawl, a transmission mechanism and a ratchet; the pawl is connected with the brake pedal; the transmission mechanism is connected with the bracket, and the ratchet is connected with the transmission mechanism; when the parking pedal is positioned at the parking position and the brake pedal is positioned between the first initial position and the brake position, the ratchet is positioned at the clamping position and is clamped with the pawl; when the parking pedal is in the second initial position and the brake pedal moves to the brake position from the position between the first initial position and the brake position, the ratchet is disengaged from the pawl, and the ratchet moves to the third initial position under the action of the transmission mechanism. The parking brake device is simple in structure and convenient to use, can not limit the stepping sequence of the brake pedal and the parking pedal when in parking operation, simplifies the stepping action of the parking pedal, and improves user experience.
Description
Technical Field
The application relates to the technical field of mowers, in particular to a parking brake device and a riding mower.
Background
Currently, most riding mowers on the market use a dual pedal parking brake device, and a user must step on the pedal to park in a fixed sequence when performing parking operation, or an additional rotating action is performed when the parking pedal is stepped on, so that the user experience is poor.
Disclosure of Invention
The present application provides a parking brake device and riding mower to improve the above problems.
The application is specifically as follows:
a parking brake apparatus comprising:
the parking brake assembly comprises a bracket, a brake pedal and a parking pedal; the brake pedal and the parking pedal are connected with the bracket; the brake pedal is used for rotating relative to the bracket under the action of external force and is provided with a first initial position and a brake position; the parking pedal is used for sliding relative to the bracket under the action of external force and is provided with a second initial position and a parking position;
and a park assembly including a pawl, a drive mechanism, and a ratchet; the pawl is connected with the brake pedal; the transmission mechanism is connected with the bracket, and the ratchet is connected with the transmission mechanism; the transmission mechanism is in transmission connection with the parking pedal and is used for driving the ratchet to move under the driving action of the parking pedal so that the ratchet has a third initial position and a clamping position;
when the parking pedal is positioned at the parking position and the brake pedal is positioned between the first initial position and the brake position, the ratchet is positioned at the clamping position and is clamped with the pawl; when the parking pedal is in the second initial position and the brake pedal moves to the brake position from the position between the first initial position and the brake position, the ratchet is disengaged from the pawl, and the ratchet moves to the third initial position under the action of the transmission mechanism.
In one embodiment of the application, the parking brake assembly further comprises a brake return member and a brake limit member; the two ends of the brake return piece are respectively connected with the bracket and the brake pedal, and the brake return piece is used for enabling the brake pedal to have a tendency of rotating from a braking position to a first initial position; the brake limiting piece is connected with the bracket, and when the brake pedal is in butt joint with the brake limiting piece, the brake pedal is positioned at a brake position;
the parking brake assembly further comprises a parking return piece; the parking return is used for enabling the parking pedal to have a tendency to rotate from the parking position to the second initial position.
In one embodiment of the application, the transmission mechanism comprises a first transmission member, a second transmission member and a first return member;
the first transmission piece is rotatably connected with the bracket and is in transmission connection with the parking pedal; the second transmission piece is rotationally connected with the bracket, and the ratchet is connected with the second transmission piece; the first transmission piece is in transmission connection with the second transmission piece;
one end of the first return piece is connected with the bracket, the other end of the first return piece is connected with the first transmission piece, and the first return piece is used for enabling the first transmission piece to have a trend of driving the ratchet to move from the clamping position to the third initial position;
the first transmission piece is used for overcoming the elastic force of the first return piece under the driving action of the parking pedal and rotating relative to the bracket so as to drive the second transmission piece to rotate, so that the ratchet moves to the clamping position;
the first transmission piece is also used for rotating relative to the bracket under the action of the restoring force of the first restoring piece so as to drive the second transmission piece to rotate, and then the ratchet moves to a third initial position.
In one embodiment of the present application, the parking assembly further includes a stop lever connected to the bracket, the stop lever being configured to abut against the first transmission member to limit rotation of the first transmission member relative to the bracket against an elastic force of the first return member under a driving action of the parking pedal.
In one embodiment of the present application, the first transmission member includes a first connection plate, a rotation rod, and a second connection plate;
the rotating rod is rotatably connected with the bracket, and the first connecting plate and the second connecting plate are fixedly connected with the rotating rod;
the first connecting plate is in transmission connection with the parking pedal, and the second connecting plate is in transmission connection with the second transmission piece; the second connecting plate is connected with the first restoring piece.
In one embodiment of the application, the parking assembly further comprises a first sliding pin connected with the parking pedal, and the first connecting plate is provided with a first bar-shaped hole matched with the first sliding pin;
the first sliding pin is used for sliding in the first bar-shaped hole when the parking pedal slides relative to the bracket under the action of external force and driving the first connecting plate to rotate around the axis of the rotating rod, so as to drive the rotating rod and the second connecting plate to rotate.
In one embodiment of the present application, the transmission mechanism further includes a third transmission member, and the third transmission member is in transmission connection with the first transmission member and the second transmission member.
In one embodiment of the present application, the third transmission member includes a third connection plate, a second sliding pin, and a second return member;
one end of the third connecting plate is rotatably connected with the second connecting plate, and the second sliding pin is connected with the other end of the third connecting plate; the second transmission piece is provided with a second strip-shaped hole which is in sliding fit with the second sliding pin; the second return piece is connected with the bracket and the second transmission piece; the second restoring piece is used for enabling the second transmission piece to have a trend of driving the ratchet to move from the third initial position to the clamping position;
the third connecting plate is used for driving the second sliding pin to slide in the second strip-shaped hole under the driving action of the second connecting plate, so that the second transmission piece moves under the action of the second return piece, and the ratchet moves from the third initial position to the clamping position.
In one embodiment of the application, the restoring force of the first restoring member is greater than the elastic force of the second restoring member.
A riding mower comprises a frame and the parking brake device; the bracket is connected with the frame.
The beneficial effects of the application are as follows:
the parking brake device comprises a parking brake assembly and a parking assembly;
the parking brake assembly comprises a bracket, a brake pedal and a parking pedal; the brake pedal and the parking pedal are connected with the bracket; the brake pedal is used for rotating relative to the bracket under the action of external force and is provided with a first initial position and a brake position; the parking pedal is used for sliding relative to the bracket under the action of external force and is provided with a second initial position and a parking position;
the parking assembly comprises a pawl, a transmission mechanism and a ratchet; the pawl is connected with the brake pedal; the transmission mechanism is connected with the bracket, and the ratchet is connected with the transmission mechanism; the transmission mechanism is in transmission connection with the parking pedal and is used for driving the ratchet to move under the driving action of the parking pedal so that the ratchet has a third initial position and a clamping position;
when the parking pedal is positioned at the parking position and the brake pedal is positioned between the first initial position and the brake position, the ratchet is positioned at the clamping position and is clamped with the pawl; when the parking pedal is in the second initial position and the brake pedal moves to the brake position from the position between the first initial position and the brake position, the ratchet is disengaged from the pawl, and the ratchet moves to the third initial position under the action of the transmission mechanism.
Therefore, when the brake pedal is stepped in the using process of the parking brake device, the brake pedal moves from a first initial position to a brake position relative to the bracket and performs brake action; when the parking pedal is stepped on, the parking pedal moves from the second initial position to the parking position relative to the bracket; moreover, the action of the brake pedal drives a pawl connected with the brake pedal to act, and the action of the parking pedal drives a ratchet to act through a transmission mechanism;
when the parking pedal is stepped to be in the parking position, the ratchet moves from the third initial position to the clamping position, and in this case, if the brake pedal is positioned between the first initial position and the brake position, the ratchet can be clamped with the pawl; at this time, the brake pedal moves to the braking position after being stepped, and is in a state of returning from the braking position to the first initial position;
in the process, if the ratchet is positioned at the clamping position, the ratchet can be clamped with a pawl on the brake pedal under the condition that the brake pedal moves from the braking position to the first initial position; therefore, when the brake pedal and the brake pedal are stepped, the brake pedal can be stepped to a braking position, then the parking pedal is stepped to a parking position, and then the brake pedal moves to a first initial position; the parking pedal can be stepped to the parking position firstly, then the brake pedal is stepped to the braking position, and then the brake pedal moves to the first initial position; namely, the order of stepping on the brake pedal and the parking pedal is variable;
when the parking pedal is at the second initial position when the parking pedal is released, the brake pedal is moved to the brake position from the position between the first initial position and the brake position by stepping on the brake pedal, so that the ratchet and the pawl are separated from clamping connection, and then the ratchet moves to the third initial position under the action of the transmission mechanism.
In conclusion, the parking brake device is simple in structure and convenient to use, the stepping sequence of the brake pedal and the parking pedal is not limited when the parking operation is carried out, the stepping action of the parking pedal is simplified, and therefore user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded schematic view of a parking brake apparatus provided by the present application;
FIG. 2 is an exploded view of the service brake assembly provided by the present application;
FIG. 3 is a schematic diagram of the connection of the parking brake device and the frame provided by the application;
fig. 4 is a schematic structural diagram of the parking brake device provided by the application in a normal mode:
fig. 5 is a schematic diagram of a pedal being stepped on when the parking brake device provided by the application is converted into a parking mode:
fig. 6 is a schematic diagram of a parking pedal and a pedal when the parking brake device provided by the application is shifted to a parking mode:
fig. 7 is a schematic diagram of stepping on a parking pedal when the parking brake device provided by the application is converted into a parking mode:
fig. 8 is a schematic diagram of a parking pedal and a pedal when the parking brake device provided by the application is converted into a parking mode.
Icon: 100-parking brake device; 110-parking brake assembly; 111-a scaffold; 112-brake pedal; 113-a parking pedal; 120-parking assembly; 121-pawl; 122-a transmission mechanism; 123-ratchet teeth; 124-brake return; 125-brake limiting piece; 131-a first transmission member; 132-a second transmission member; 133-first recovery; 127-limiting rod; 134-first connection plate; 135-rotating the rod; 136-a second connection plate; 137-a first slide pin; 138-first bar-shaped holes; 139-a third transmission member; 141-a third connecting plate; 142-a second slide pin; 143-a second return; 144-second bar-shaped holes; 210-vehicle frame.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present application, it should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in use of the product of the application as understood by those skilled in the art, which is merely for convenience of describing the present application and simplifying the description, and is not indicative or implying that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-8, the present embodiment provides a parking brake device 100, including:
a parking brake assembly 110, the parking brake assembly 110 comprising a bracket 111, a brake pedal 112 and a parking pedal 113; the brake pedal 112 and the parking pedal 113 are connected with the bracket 111; the brake pedal 112 is configured to rotate relative to the bracket 111 under the action of external force, and has a first initial position and a braking position; the parking pedal 113 is configured to slide relative to the bracket 111 under the action of an external force, and has a second initial position and a parking position;
and a parking assembly 120, the parking assembly 120 including a pawl 121, a transmission 122, and a ratchet 123; pawl 121 is connected to brake pedal 112; the transmission mechanism 122 is connected with the bracket 111, and the ratchet 123 is connected with the transmission mechanism 122; the transmission mechanism 122 is in transmission connection with the parking pedal 113, and the transmission mechanism 122 is used for driving the ratchet 123 to move under the driving action of the parking pedal 113, so that the ratchet 123 has a third initial position and a clamping position;
when the parking pedal 113 is in the parking position and the brake pedal 112 is between the first initial position and the braking position, the ratchet 123 is in the clamping position and is clamped with the pawl 121; when the parking pedal 113 is at the second initial position and the brake pedal 112 moves from the position between the first initial position and the brake position to the brake position, the ratchet 123 is disengaged from the pawl 121, and the ratchet 123 moves to the third initial position under the action of the transmission mechanism 122.
Referring to fig. 1 to 8, the working principle of the parking brake device 100 is as follows:
when the parking brake device 100 is in use and the brake pedal 112 is depressed, the brake pedal 112 moves from a first initial position to a braking position relative to the bracket 111, and performs a braking action; when the parking pedal 113 is depressed, the parking pedal 113 moves from the second initial position to the parking position relative to the bracket 111; moreover, the action of the brake pedal 112 drives the pawl 121 connected with the brake pedal to act, and the action of the parking pedal 113 drives the ratchet 123 to act through the transmission mechanism 122;
when the parking pedal 113 is further stepped on to be in the parking position, the ratchet 123 moves from the third initial position to the locking position, in which case, if the brake pedal 112 is located between the first initial position and the brake position, the ratchet 123 is locked with the pawl 121; at this time, the brake pedal 112 moves to the braking position after being depressed, and returns from the braking position to the first initial position;
in the above process, if the ratchet 123 is at the locking position, the ratchet 123 can be locked with the pawl 121 on the brake pedal 112 when the brake pedal 112 moves from the braking position to the first initial position; thus, when the brake pedal 112 is depressed, the brake pedal 112 may be depressed to the braking position, and then the parking pedal 113 may be depressed to the parking position, and then the brake pedal 112 may be moved to the first initial position; it is also possible to first step the parking pedal 113 to the parking position, then step the brake pedal 112 to the braking position, and then move the brake pedal 112 to the first initial position; that is, the order of stepping on the brake pedal 112 and the parking pedal 113 is variable;
when the parking pedal 113 is in the parking position during the parking, the brake pedal 112 is moved from the first initial position to the braking position by pressing the brake pedal 112, so that the ratchet 123 is disengaged from the pawl 121, and then the ratchet 123 is moved to the third initial position by the transmission mechanism 122.
In summary, the parking brake device 100 has a simple structure and is convenient to use, and when parking is performed, the stepping sequence of the brake pedal 112 and the parking pedal 113 is not limited, and the stepping action of the parking pedal 113 is simplified, so that the user experience is improved.
Based on the above, please refer to fig. 1-8, the parking brake device 100 has a normal mode, a braking mode and a parking mode, concretely referring to fig. 4, and referring to fig. 1-3, when the parking brake device 100 is in the normal mode:
at this time, neither the brake pedal 112 nor the parking pedal 113 receives a stepping force, and at this time, the brake pedal 112 is at the first initial position and the parking pedal 113 is at the second initial position; since the parking pedal 113 is not actuated, the ratchet 123 is in the third initial position.
Referring to fig. 5 in combination with fig. 1-4, when the parking brake apparatus 100 is in the braking mode:
at this time, the brake pedal 112 receives a stepping force, and the brake pedal 112 rotates relative to the bracket 111 after receiving the stepping force, and rotates from the first initial position to the braking position; the parking pedal 113 is not depressed, so the parking pedal 113 is in the second initial state; also, since the parking pedal 113 is not actuated, the ratchet 123 is in the third initial position.
When parking brake apparatus 100 is turned into park mode, it includes the following two cases:
in case a, please refer to fig. 5 and 6, and referring to fig. 1-4, when the brake pedal 112 is first stepped on and then the parking pedal 113 is stepped on:
referring to fig. 5, the brake pedal 112 rotates relative to the bracket 111 after receiving a stepping force, and rotates from a first initial position to a braking position; subsequently, the parking pedal 113 slides with respect to the bracket 111 after receiving a stepping force, and rotates from the second initial position to the parking position;
referring to fig. 6, in the process of moving the parking pedal 113 from the second initial position to the parking position, the ratchet 123 is driven to move by the transmission mechanism 122, and the ratchet 123 is driven to move from the third initial position to the clamping position;
then, the brake pedal 112 is released, when the brake pedal 112 moves from the brake position to the first initial position and is positioned between the first initial position and the brake position, the pawl 121 on the brake pedal 112 is clamped with the ratchet 123, and at the moment, the movement of the brake pedal 112 is limited, and then the parking mode is realized;
in case B, referring to fig. 7 and 8, and referring to fig. 1 to 4, when the parking pedal 113 is first stepped on and then the brake pedal 112 is stepped on:
referring to fig. 7, after receiving a stepping force, the parking pedal 113 slides relative to the bracket 111 and rotates from the second initial position to the parking position; in the process of moving the parking pedal 113 from the second initial position to the parking position, the ratchet 123 is driven to move by the transmission mechanism 122, and the ratchet 123 is driven to move from the third initial position to the clamping position;
referring to fig. 8, the brake pedal 112 rotates relative to the bracket 111 after receiving a stepping force, and rotates from a first initial position to a braking position;
then, the brake pedal 112 is released, when the brake pedal 112 moves from the brake position to the first initial position and is positioned between the first initial position and the brake position, the pawl 121 on the brake pedal 112 is clamped with the ratchet 123, and at the moment, the movement of the brake pedal 112 is limited, and then the parking mode is realized;
based on the above, it should be noted that, in the present embodiment, since the brake pedal 112 and the parking pedal 113 are located at different positions of the frame 210 when being mounted on the frame 210, the bracket 111 may be separately provided when the bracket 111 is provided, that is, the bracket 111 may include the first bracket 111 and the second bracket 111, and the brake pedal 112 is rotatably connected to the first bracket 111, and the parking pedal 113 is slidably connected to the second bracket 111. In addition, in this embodiment, plastic bushings may be disposed at the rotational connection positions of the parking brake assembly 110 and the parking assembly 120 and the bracket 111, so that the rotation is smoother, and noise generated during the rotation can be prevented.
Further, referring to fig. 1-8, in the present embodiment, in order to limit the rotation of the brake pedal 112 relative to the bracket 111 when the brake pedal is subjected to the stepping force, that is, the rotation of the brake pedal in the same direction is stopped after the brake pedal rotates to the braking position under the stepping action, the parking brake assembly 110 further includes a brake limiting member 125; the brake limiting piece 125 is connected with the bracket 111, and when the brake pedal 112 is abutted against the brake limiting piece 125, the brake pedal 112 is at a brake position; in addition, in order to enable the brake pedal 112 to move from the braking position to the first initial position after the pedal force applied thereto is removed, the parking brake assembly 110 further includes a brake return member 124; both ends of the brake return member 124 are connected to the bracket 111 and the brake pedal 112, respectively, and the brake return member 124 is configured to cause the brake pedal 112 to have a tendency to rotate from a braking position to a first initial position.
Similarly, in order to enable the parking pedal 113 to move from the parking position to the second initial position after the pedal force applied thereto is removed, the parking brake assembly 110 further includes a parking return member; the parking return is used to cause the parking pedal 113 to have a tendency to rotate from the parking position to the second initial position.
Further, as can be seen from the above description, referring to fig. 1 to 8, in the present embodiment, when the transmission mechanism 122 is provided, the transmission mechanism 122 functions to drive the ratchet 123 to move from the third initial position to the locking position when the parking pedal 113 moves from the second initial position to the parking position; meanwhile, when the ratchet 123 is disengaged from the pawl 121 and the parking pedal 113 is at the second initial position, the ratchet 123 is driven to move from the clamping position to the third initial position; therefore, the transmission mechanism 122 includes a first transmission member 131, a second transmission member 132, and a first recovery member 133;
the first transmission member 131 is rotatably connected with the bracket 111 and is in transmission connection with the parking pedal 113; the second transmission member 132 is rotatably connected with the bracket 111, and the ratchet 123 is connected with the second transmission member 132; the first transmission piece 131 is in transmission connection with the second transmission piece 132;
one end of the first return piece 133 is connected with the bracket 111, the other end of the first return piece 133 is connected with the first transmission piece 131, and the first return piece 133 is used for enabling the first transmission piece 131 to have a trend of driving the ratchet 123 to move from the clamping position to the third initial position;
the first transmission member 131 is configured to overcome the elastic force of the first return member 133 under the driving action of the parking pedal 113, and rotate relative to the bracket 111, so as to drive the second transmission member 132 to rotate, so that the ratchet 123 moves to the clamping position;
the first transmission member 131 is further configured to rotate relative to the bracket 111 under the restoring force of the first restoring member 133, so as to drive the second transmission member 132 to rotate, and further move the ratchet 123 to the third initial position.
Therefore, when the parking pedal 113 moves from the second initial position to the parking position, the sliding of the parking pedal 113 drives the first transmission member 131 to rotate relative to the bracket 111, at this time, the rotation of the first transmission member 131 needs to overcome the elastic force of the first return member 133, and the rotation of the first transmission member 131 drives the second transmission member 132 to rotate relative to the bracket 111, and the second transmission member 132 is connected with the ratchet 123, so that the rotation of the second transmission member 132 drives the ratchet 123 to move from the third initial position to the clamping position; when the clamping effect of the ratchet 123 and the pawl 121 is lost, and the driving effect of the parking pedal 113 on the first transmission member 131 is lost, that is, when the parking pedal 113 is at the parking position, the first transmission member 131 rotates relative to the bracket 111 under the restoring force of the first restoring member 133, so as to drive the second transmission member 132 to rotate, thereby driving the ratchet 123 to move from the clamping position to the third initial position.
In order to limit the rotation angle of the first transmission member 131 relative to the bracket 111 during the rotation of the first transmission member 131 relative to the bracket 111 driven by the parking pedal 113, the parking assembly 120 further includes a stop lever 127 connected to the bracket 111, where the stop lever 127 is used to abut against the first transmission member 131 to limit the rotation of the first transmission member 131 relative to the bracket 111 under the driving action of the parking pedal 113 against the elastic force of the first return member 133.
As can be seen from the above, the first transmission member 131 is capable of driving the second transmission member 132 to rotate under the action of the parking pedal 113, and driving the second transmission member 132 to rotate under the action of the restoring force of the first restoring member 133; thus, when the first transmission member 131 is provided, the first transmission member 131 may include the first connection plate 134, the rotation lever 135, and the second connection plate 136;
the rotating rod 135 is rotatably connected with the bracket 111, and the first connecting plate 134 and the second connecting plate 136 are fixedly connected with the rotating rod 135, wherein when the first connecting plate 134 and the second connecting plate 136 are arranged, the first connecting plate 134 and the second connecting plate 136 can be arranged at intervals; the interval can be reduced or eliminated by an integrally arranged mode;
the first connecting plate 134 is in transmission connection with the parking pedal 113, and the second connecting plate 136 is in transmission connection with the second transmission member 132; the second connection plate 136 is connected to the first return 133.
The first connection plate 134 is in driving connection with the parking pedal 113, the second connection plate 136 is in driving connection with the second transmission member 132, and the first connection plate 134 and the second connection plate 136 are fixedly connected with the rotation rod 135, so that the power of the brake pedal 112 can be transmitted to the second transmission member 132.
In the case of the above-mentioned configuration of the first transmission member 131, in order to enable the sliding of the parking pedal 113 to drive the first connection plate 134 to rotate relative to the bracket 111, the parking assembly 120 further includes a first sliding pin 137 connected to the parking pedal 113, and the first connection plate 134 is provided with a first bar-shaped hole 138 that is matched with the first sliding pin 137;
the first sliding pin 137 is configured to slide in the first bar-shaped hole 138 when the parking pedal 113 slides relative to the bracket 111 under the action of external force, and drives the first connecting plate 134 to rotate around the axis of the rotating rod 135, thereby driving the rotating rod 135 and the second connecting plate 136 to rotate.
In addition, based on the above, in order to enable the first transmission member 131 to drive the second transmission member 132 to rotate, the transmission mechanism 122 further includes a third transmission member 139, where the third transmission member 139 is in transmission connection with the first transmission member 131 and the second transmission member 132.
Specifically, the third transmission member 139 includes a third connecting plate 141, a second sliding pin 142, and a second return member 143; one end of the third connection plate 141 is rotatably connected to the second connection plate 136, and the second sliding pin 142 is connected to the other end of the third connection plate 141; the second driving member 132 is provided with a second bar-shaped hole 144 in sliding fit with the second sliding pin 142; the second return piece 143 is connected with the bracket 111 and the second transmission piece 132; the second return piece 143 is used for enabling the second transmission piece 132 to have a trend of driving the ratchet 123 to move from the third initial position to the clamping position;
the second bar-shaped hole 144 gives a certain movable space to the joint of the third connecting plate 141 and the transmission mechanism 122, so that the first connecting plate 134, the second connecting plate 136 and the third connecting plate 141 in the subsequent movement chain can smoothly move and cannot be blocked after the brake pedal 112 is stepped on;
and the third connecting plate 141 is used for driving the second sliding pin 142 to slide in the second bar-shaped hole 144 under the driving action of the second connecting plate 136, so that the second transmission member 132 moves under the action of the second return member 143, and the ratchet 123 moves from the third initial position to the clamping position.
Thus, by means of the arrangement, when the parking pedal 113 drives the second connecting plate 136 to rotate, the third connecting plate 141 is driven to rotate, and as the third connecting plate 141 is matched with the second transmission member 132 through the second sliding pin 142, the movement of the third connecting plate 141 can drive the second sliding pin 142 to slide in the second strip-shaped hole 144, so that the second transmission member 132 moves under the action of the second return member 143, and the ratchet 123 moves from the third initial position to the clamping position.
And the restoring force of the first restoring member 133 is greater than the elastic force of the second restoring member 143. That is, in the case where the second return piece 143 is provided, when the ratchet 123 moves from the third initial position to the engagement position, it moves by the elastic force of the second return piece 143; and when the ratchet 123 moves from the engaged position to the third initial position, it moves under the elastic force of the first restoring member 133.
To sum up, referring to fig. 5, when the parking brake apparatus 100 is turned to the braking mode:
depressing the brake pedal 112 causes the brake pedal 112 to rotate relative to the bracket 111 and from a first initial position to a braking position; the parking pedal 113 is not depressed, so the parking pedal 113 is in the second initial state; also, since the parking pedal 113 is not actuated, the ratchet 123 is in the third initial position.
Referring to fig. 5 and 6, when the parking brake device 100 is turned into the parking mode and the parking pedal 113 is depressed after the brake pedal 112 is depressed:
referring to fig. 5, the brake pedal 112 is depressed to rotate the brake pedal 112 relative to the bracket 111 from a first initial position to a braking position;
subsequently, referring to fig. 6, the parking pedal 113 is depressed such that the parking pedal 113 slides with respect to the bracket 111; when the parking pedal 113 rotates from the second initial position to the parking position, the action of the parking pedal 113 is transmitted to the first connecting plate 134 through the cooperation of the first sliding pin 137 and the first bar-shaped hole 138, and the first connecting plate 134 rotates relative to the bracket 111; after the first connecting plate 134 rotates, the first connecting plate 134 is connected to the rotating rod 135, and the second connecting plate 136 is connected to the rotating rod 135, so that the second connecting plate 136 is driven to rotate, and the rotation directions of the first connecting plate 134, the rotating rod 135 and the second connecting plate 136 are all the second rotation directions (as shown by arrow E in fig. 5-8);
when the second connecting plate 136 rotates, the second connecting plate 136 is rotationally connected with the third connecting plate 141, and the third connecting plate 141 is matched with the second bar-shaped hole 144 on the second transmission member 132 through the second sliding pin 142; thus, the rotation of the second connecting plate 136 drives the third connecting plate 141 to move upwards, and drives the second sliding pin 142 to move upwards along the second bar-shaped hole 144;
at this time, the restriction of the third connecting plate 141 to the second transmission member 132 disappears, so the second transmission member 132 rotates in the second rotation direction under the action of the second return member 143, and further drives the ratchet 123 to rotate from the third initial position to the clamping position;
then, the brake pedal 112 is released, and when the brake pedal 112 moves from the braking position to the first initial position and is located between the first initial position and the braking position, the pawl 121 on the brake pedal 112 is engaged with the ratchet 123, and at this time, the movement of the brake pedal 112 is limited, and thus, the parking mode is set.
Referring to fig. 7 and 8, when the parking brake device 100 is turned into the parking mode and the parking pedal 113 is first depressed and then the brake pedal 112 is depressed:
depressing the parking pedal 113 causes the parking pedal 113 to slide relative to the bracket 111; when the parking pedal 113 rotates from the second initial position to the parking position, the action of the parking pedal 113 is transmitted to the first connecting plate 134 through the cooperation of the first sliding pin 137 and the first bar-shaped hole 138, and the first connecting plate 134 rotates relative to the bracket 111; after the first connecting plate 134 rotates, the first connecting plate 134 is connected with the rotating rod 135, and the second connecting plate 136 is connected with the rotating rod 135, so that the second connecting plate 136 is driven to rotate, and at the moment, the rotation directions of the first connecting plate 134, the rotating rod 135 and the second connecting plate 136 are all second rotation directions;
when the second connecting plate 136 rotates, the second connecting plate 136 is rotationally connected with the third connecting plate 141, and the third connecting plate 141 is matched with the second bar-shaped hole 144 on the second transmission member 132 through the second sliding pin 142; thus, the rotation of the second connecting plate 136 drives the third connecting plate 141 to move upwards, and drives the second sliding pin 142 to move upwards along the second bar-shaped hole 144;
at this time, the restriction of the third connecting plate 141 to the second transmission member 132 disappears, so the second transmission member 132 rotates in the second rotation direction under the action of the second return member 143, and further drives the ratchet 123 to rotate from the third initial position to the clamping position;
subsequently, the brake pedal 112 is depressed such that the brake pedal 112 rotates relative to the bracket 111 and rotates from the first initial position to the braking position; when the brake pedal 112 rotates, the pawl 121 collides with the second transmission member 132, so that the second transmission member 132 rotates towards the initial position, the first transmission member 131 and the third transmission member 139 are not affected due to the second strip-shaped hole 144, and remain stationary, and the parking pedal 113 also remains stationary; when the pawl 121 rotates to the ratchet 123 position, contact with the second transmission member 132 is lost, and the second transmission member 132 rotates to the parking position under the action of the second return member 143;
when the brake pedal 112 is released and the brake pedal 112 moves from the brake position to the first initial position and is positioned between the first initial position and the brake position, the pawl 121 on the brake pedal 112 is clamped with the ratchet 123, and at the moment, the movement of the brake pedal 112 is limited, and then the parking mode is realized.
When the parking is released, at this time, the parking pedal 113 is in the parking position, and the brake pedal 112 is stepped on, so that the brake pedal 112 moves from the first initial position to the braking position, and the position of the pawl 121 is changed and is disengaged from the ratchet 123;
after the pawl 121 is disengaged from the ratchet 123, since the restoring force of the first restoring member 133 is greater than the elastic force of the second restoring member 143, the second connecting plate 136 is driven to rotate in the first rotational direction (as shown by arrow D in fig. 5-8) under the restoring force of the first restoring member 133, and at this time, since the first connecting plate 134 is connected to the parking pedal 113 through the first sliding pin 137, the first sliding pin 137 slides in the first bar hole 138; meanwhile, the rotation of the second connection plate 136 drives the third connection plate 141 to move downwards, so that the second sliding pin 142 is propped against the end of the second bar-shaped hole 144, and overcomes the elastic force of the second return piece 143 under the action of the restoring force of the first return piece 133, so that the second transmission piece 132 rotates along the first rotation direction, and the ratchet 123 moves to the third initial position; thereby releasing the parking.
Referring to fig. 1-8, based on the above, the present application further provides a riding mower, which includes a frame 210 and the parking brake device 100; the bracket 111 is connected to the frame 210.
By adopting the parking brake device 100, the riding mower can not limit the stepping sequence of the brake pedal 112 and the parking pedal 113 when the riding mower performs the parking operation, and simplify the stepping action of the parking pedal 113, thereby improving the user experience.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (9)
1. A parking brake apparatus, comprising:
the parking brake assembly comprises a bracket, a brake pedal and a parking pedal; the brake pedal and the parking pedal are connected with the bracket; the brake pedal is used for rotating relative to the bracket under the action of external force and is provided with a first initial position and a brake position; the parking pedal is used for sliding relative to the bracket under the action of external force and is provided with a second initial position and a parking position;
the parking assembly comprises a pawl, a transmission mechanism and a ratchet; the pawl is connected with the brake pedal; the transmission mechanism is connected with the bracket, and the ratchet is connected with the transmission mechanism; the transmission mechanism is in transmission connection with the parking pedal, and the transmission mechanism is used for driving the ratchet to move under the driving action of the parking pedal, so that the ratchet is provided with a third initial position and a clamping position;
when the parking pedal is positioned at the parking position and the brake pedal is positioned between the first initial position and the brake position, the ratchet is positioned at the clamping position and is clamped with the pawl; when the parking pedal is in the second initial position and the brake pedal moves from a position between the first initial position and the brake position to the brake position, the ratchet is disengaged from the pawl, and the ratchet moves to the third initial position under the action of the transmission mechanism;
the transmission mechanism comprises a first transmission piece, a second transmission piece and a first recovery piece;
the first transmission piece is rotatably connected with the bracket and is in transmission connection with the parking pedal; the second transmission piece is rotationally connected with the bracket, and the ratchet is connected with the second transmission piece; the first transmission piece is in transmission connection with the second transmission piece;
one end of the first return piece is connected with the bracket, the other end of the first return piece is connected with the first transmission piece, and the first return piece is used for enabling the first transmission piece to have a trend of driving the ratchet to move from the clamping position to the third initial position;
the first transmission piece is used for overcoming the elastic force of the first return piece under the driving action of the parking pedal and rotating relative to the bracket so as to drive the second transmission piece to rotate, so that the ratchet moves to the clamping position;
the first transmission piece is also used for rotating relative to the bracket under the action of the restoring force of the first restoring piece so as to drive the second transmission piece to rotate, and then the ratchet moves to the third initial position.
2. The parking brake apparatus of claim 1, wherein:
the parking brake assembly further comprises a brake return piece and a brake limiting piece; the two ends of the brake return piece are respectively connected with the bracket and the brake pedal, and the brake return piece is used for enabling the brake pedal to have a tendency of rotating from the brake position to the first initial position; the brake limiting piece is connected with the bracket, and when the brake pedal is in butt joint with the brake limiting piece, the brake pedal is positioned at the brake position;
the parking brake assembly further comprises a parking return piece; the parking return is for causing the parking pedal to have a tendency to slide from the parking position to the second initial position.
3. The parking brake apparatus of claim 1, wherein:
the parking assembly further comprises a limiting rod connected with the support, wherein the limiting rod is used for being abutted with the first transmission piece so as to limit the first transmission piece to overcome the elastic force of the first return piece under the driving action of the parking pedal and rotate relative to the support.
4. A parking brake apparatus as defined in claim 3, wherein:
the first transmission piece comprises a first connecting plate, a rotating rod and a second connecting plate;
the rotating rod is rotatably connected with the bracket, and the first connecting plate and the second connecting plate are fixedly connected with the rotating rod;
the first connecting plate is in transmission connection with the parking pedal, and the second connecting plate is in transmission connection with the second transmission piece; the second connecting plate is connected with the first restoring piece.
5. The parking brake apparatus of claim 4, wherein:
the parking assembly further comprises a first sliding pin connected with the parking pedal, and the first connecting plate is provided with a first strip-shaped hole matched with the first sliding pin;
the first sliding pin is used for sliding in the first strip-shaped hole when the parking pedal slides relative to the bracket under the action of external force, and driving the first connecting plate to rotate around the axis of the rotating rod, so as to drive the rotating rod and the second connecting plate to rotate.
6. The parking brake apparatus of claim 4, wherein:
the transmission mechanism further comprises a third transmission part, and the third transmission part is in transmission connection with the first transmission part and the second transmission part.
7. The parking brake apparatus of claim 6, wherein:
the third transmission piece comprises a third connecting plate, a second sliding pin and a second return piece;
one end of the third connecting plate is rotatably connected with the second connecting plate, and the second sliding pin is connected with the other end of the third connecting plate; the second transmission part is provided with a second strip-shaped hole which is in sliding fit with the second sliding pin; the second return piece is connected with the bracket and the second transmission piece; the second restoring piece is used for enabling the second transmission piece to have a trend of driving the ratchet to move from the third initial position to the clamping position;
the third connecting plate is used for driving the second sliding pin to slide in the second strip-shaped hole under the driving action of the second connecting plate, so that the second transmission piece moves under the action of the second return piece, and the ratchet moves from the third initial position to the clamping position.
8. The parking brake apparatus of claim 7, wherein:
the restoring force of the first restoring member is greater than the elastic force of the second restoring member.
9. A riding mower, characterized by:
the riding mower comprising a frame and a parking brake device according to any one of claims 1-8;
the support is connected with the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210714801.9A CN114982483B (en) | 2022-06-22 | 2022-06-22 | Parking brake device and riding mower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210714801.9A CN114982483B (en) | 2022-06-22 | 2022-06-22 | Parking brake device and riding mower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114982483A CN114982483A (en) | 2022-09-02 |
| CN114982483B true CN114982483B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210714801.9A Active CN114982483B (en) | 2022-06-22 | 2022-06-22 | Parking brake device and riding mower |
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| Country | Link |
|---|---|
| CN (1) | CN114982483B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207269396U (en) * | 2017-08-15 | 2018-04-27 | 绿友机械集团股份有限公司 | The brake halting mechanism of the electronic curved grass trimmer of zero-turn |
| CN109552283A (en) * | 2019-01-21 | 2019-04-02 | 苏州市双马机电有限公司 | It is a kind of easy to operate to stay brake gear and the electric grass-cutting vehicle with the device |
| CN111629584A (en) * | 2018-06-11 | 2020-09-04 | 南京德朔实业有限公司 | Riding type mower |
-
2022
- 2022-06-22 CN CN202210714801.9A patent/CN114982483B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207269396U (en) * | 2017-08-15 | 2018-04-27 | 绿友机械集团股份有限公司 | The brake halting mechanism of the electronic curved grass trimmer of zero-turn |
| CN111629584A (en) * | 2018-06-11 | 2020-09-04 | 南京德朔实业有限公司 | Riding type mower |
| CN109552283A (en) * | 2019-01-21 | 2019-04-02 | 苏州市双马机电有限公司 | It is a kind of easy to operate to stay brake gear and the electric grass-cutting vehicle with the device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114982483A (en) | 2022-09-02 |
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