Self-locking parking pedal of sweeper

Abstract

The utility model belongs to the technical field of sweeping vehicles, and particularly relates to a self-locking parking pedal of a sweeping vehicle, which comprises a bottom plate, a pedal and an extension plate, the bottom plate extends downwards to form a side protection plate, the side protection plate is provided with a rotating shaft and a spring, the bottom of the pedal is connected with a locking piece, the locking piece is rotatably connected with the rotating shaft, and the extension plate is connected with the bottom of the pedal. One end of the spring is connected with the side protection plate, the other end of the spring is connected with the locking piece, the locking piece rotates along a rotating shaft through elastic pulling of the spring, the locking piece comprises a ratchet wheel and a guide groove formed below the ratchet wheel, the rear side of the extension plate is fixedly connected with the front side of the side protection plate, and the rear side of the extension plate is fixedly connected with the side protection plate. The rear side of the extension plate is rotationally connected with a locking claw used for being connected with the ratchet wheel in a clamped mode, a torsional spring is arranged on the front side of the locking claw, the other end of the torsional spring is rotationally connected with the front side of the extension plate, the guide groove is used for enabling the locking claw to rotate towards the interior of the guide groove, and the automatic parking effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sweepers, in particular to a self-locking parking pedal for a sweeper. Background Art

[0002] A sweeper is an integrated garbage sweeper that combines sweeping and vacuuming. It has the advantages of high work efficiency, low cleaning cost, good cleaning effect, high safety performance, and high economic return rate. It has been widely used in cleaning roads in large, medium and small cities. Some sweepers are equipped with a watering function to prevent dust from being generated during the cleaning process, causing secondary environmental pollution. Existing sweepers lack an automatic parking function, which requires users to continue to press the brake pedal after stepping on the brake, or to pull up the handbrake, which is laborious and troublesome. Utility Model Content

[0003] The purpose of the utility model is to provide a self-locking parking pedal for a sweeper, aiming to solve the technical problems in the prior art that after stepping on the brake, the brake pedal needs to be continuously pressed, or the handbrake needs to be pulled up additionally, which is laborious and troublesome.

[0004] To achieve the above-mentioned objectives, an embodiment of the utility model provides a self-locking parking pedal for a sweeper, comprising a base plate, a pedal and an extension plate, the base plate extending downwardly with a side guard plate, the side guard plate being provided with a rotating shaft and a spring, a locking piece being connected to the bottom of the pedal, the locking piece being rotatably connected to the rotating shaft, one end of the spring being connected to the side guard plate, and the other end being connected to the locking piece, the elastic pulling of the spring realizing the rotation of the locking piece along the rotating shaft, the locking piece comprising a ratchet and a guide groove arranged below the ratchet, the rear side of the extension plate being fixedly connected to the front side of the side guard plate, the rear side of the extension plate being rotatably connected with a locking claw for clamping with the ratchet, a torsion spring being provided on the front side of the locking claw, the other end of the torsion spring being rotatably connected to the front side of the extension plate, and the guide groove being used to enable the locking claw to rotate into the guide groove.

[0005] Preferably, a limiting plate is provided above the extension plate, and the limiting plate abuts against the top of the locking claw.

[0006] Preferably, a mounting plate is provided at the bottom of the base plate, the mounting plate is provided with a motor switch, and the ratchet is provided with a pressing piece for pressing the motor switch.

[0007] Preferably, a spring sheet extends from the bottom of the motor switch, and the other end of the spring sheet extends to the top of the pressing member and abuts against the top of the pressing member.

[0008] Preferably, a swing arm extends from the front side of the locking claw, and the swing arm is provided with a mounting hole for mounting one end of the torsion spring.

[0009] The above one or more technical solutions in the self-locking parking pedal of the sweeper provided by the embodiment of the utility model have at least one of the following technical effects:

[0010] Before use, the locking pawl is located in the guide groove, and the locking pawl is subjected to the elastic downward pressure of the torsion spring, so that the bottom of the locking pawl is tightly fitted with the ratchet. When in use, the pedal is stepped on to make the ratchet rotate along the rotating shaft. During this process, the guide groove rotates and disengages the locking pawl, and the locking pawl slides with each ratchet tooth of the ratchet. During the rotation of the guide groove, the spring is elastically stretched, and the brake part is driven to brake as the ratchet rotates; after stopping stepping on the pedal, the bottom of the locking pawl slides into a ratchet groove of the ratchet, and the ratchet rotates in the opposite direction under the elastic contraction of the spring. After the locking pawl is subjected to the force applied by the ratchet rotating in the opposite direction, it also rotates in the same direction. At this time, the elastic direction of the torsion spring is upward The locking claw is lifted upward so that the bottom of the locking claw is engaged in the ratchet groove, and the brake part remains in the braking state. At this time, the user's foot can achieve the braking effect even if it is away from the pedal; when starting again, the pedal is stepped on, and the locking claw rotates under the elastic lifting action of the torsion spring, and the bottom of the locking claw is separated from the ratchet groove. The user then reduces the force of stepping on the pedal, and the pedal is reset under the elastic contraction of the spring. The ratchet also resets and rotates at the same time, and finally the bottom wall of the guide groove at the bottom of the ratchet contacts the bottom of the locking claw and slides the locking claw into the guide groove. At this time, the elastic direction of the torsion spring is downward, and the bottom of the locking claw is elastically pressed on the ratchet to achieve the automatic parking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the overall structure of a self-locking parking pedal for a sweeper provided in an embodiment of the utility model;

[0012] Figure 2 A schematic diagram of the structure of a locking member of a self-locking parking pedal of a sweeper provided in an embodiment of the utility model;

[0013] Figure 3 A schematic structural diagram of the side guard plate of the self-locking parking pedal of a sweeper provided in an embodiment of the utility model.

[0014] Among them, the reference numerals in the figure are:

[0015] 1-bottom plate, 11-side guard plate, 12-rotating shaft, 13-spring, 14-mounting plate, 141-motor switch, 142-pressing piece, 143-spring, 2-pedal, 21-locking piece, 211-ratchet, 212-guide groove, 3-extension plate, 31-locking claw, 311-swing arm, 312-mounting hole, 32-torsion spring, 33-limiting plate. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0017] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention 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, and therefore cannot be understood as a limitation on the present invention.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0019] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0020] In one embodiment of the present invention, Figures 1 to 3As shown, a self-locking parking pedal for a sweeper is provided, comprising a base plate 1, a pedal 2 and an extension plate 3, wherein the base plate 1 is downwardly extended with a side guard plate 11, the side guard plate 11 is provided with a rotating shaft 12 and a spring 13, a locking member 21 is connected to the bottom of the pedal 2, the locking member 21 is rotatably connected to the rotating shaft 12, one end of the spring 13 is connected to the side guard plate 11, and the other end is connected to the locking member 21, the elastic pulling of the spring 13 realizes the rotation of the locking member 21 along the rotating shaft 12, and the locking member 21 is rotated along the rotating shaft 12. The locking member 21 includes a ratchet 211 and a guide groove 212 arranged below the ratchet 211. The rear side of the extension plate 3 is fixedly connected to the front side of the side guard plate 11. The rear side of the extension plate 3 is rotatably connected with a locking claw 31 for engaging with the ratchet 211. A torsion spring 32 is provided on the front side of the locking claw 31. The other end of the torsion spring 32 is rotatably connected to the front side of the extension plate 3. The guide groove 212 is used to make the locking claw 31 rotate into the guide groove 212.

[0021] Furthermore, a limiting plate 33 is provided above the extension plate 3, and the limiting plate 33 abuts against the top of the locking claw 31. Specifically, when the vehicle is started again, the pedal 2 is stepped on, and the locking claw 31 rotates under the elastic lifting action of the torsion spring 32, and the bottom of the locking claw 31 is separated from the ratchet groove, and the top of the locking claw 31 abuts against the limiting plate 33, so as to prevent the locking claw 31 from excessively rotating due to the elastic lifting action of the torsion spring 32, resulting in the top of the locking claw 31 accidentally contacting the ratchet 211, thereby affecting the reset effect; the user then reduces the force of stepping on the pedal 2, and the pedal 2 is reset under the elastic contraction of the spring 13, and the ratchet 211 is also reset and rotated at the same time, and finally the bottom wall of the guide groove 212 at the bottom of the ratchet 211 contacts the bottom of the locking claw 31, and the locking claw 31 slides into the guide groove 212, at which time the elastic direction of the torsion spring 32 is downward, and the bottom of the locking claw 31 is elastically pressed on the ratchet 211 to achieve the automatic parking effect.

[0022] Furthermore, a mounting plate 14 is provided at the bottom of the base plate 1 , and a motor switch 141 is provided on the mounting plate 14 . The ratchet 211 is provided with a pressing member 142 for pressing the motor switch 141 . Specifically, before use, the locking claw 31 is located in the guide groove 212, and the locking claw 31 is elastically pressed down by the torsion spring 32, so that the bottom of the locking claw 31 is tightly fitted with the ratchet 211. At this time, the pressing piece 142 presses on the motor switch 141, and the drive motor continues to operate; when in use, stepping on the pedal 2 makes the ratchet 211 rotate along the rotating shaft 12. During this process, the guide groove 212 rotates and disengages from the locking claw 31, and the locking claw 31 slides with each ratchet tooth of the ratchet 211. During the rotation of the guide groove 212, the spring 13 is elastically stretched, and as the ratchet 211 rotates, the brake member is driven to brake. During the rotation of the ratchet 211, the pressing piece 142 simultaneously rotates along the rotating shaft 12, so that the pressing piece 142 is away from the motor switch 141, so that the drive motor stops operating, thereby achieving a linkage effect between the brake and the drive motor.

[0023] Furthermore, a spring sheet 143 extends from the bottom of the motor switch 141 , and the other end of the spring sheet 143 extends to the top of the pressing member 142 and abuts against the top of the pressing member 142 . The locking claw 31 is elastically stretched during the rotation of the guide groove 212, and the brake member is driven to brake as the ratchet 211 rotates. During the rotation of the ratchet 211, the pressing member 142 rotates along the rotating shaft 12 at the same time, so that the pressing member 142 is away from the spring 143, and then the spring 143 is separated from the motor switch 141, so that the drive motor stops operating, thereby achieving the linkage effect of the brake and the drive motor.

[0024] Furthermore, a swing arm 311 extends from the front side of the locking claw 31, and the swing arm 311 is provided with a mounting hole 312 for mounting one end of the torsion spring 32. Specifically, by providing the swing arm 311, the torsion spring 32 can apply elastic force to the locking claw 31 more accurately, and the torsion spring 32 can push the locking claw 31 with less effort, thereby extending the life of the locking claw 31.

[0025] Working principle: before use, the locking claw 31 is located in the guide groove 212, and the locking claw 31 is elastically pressed down by the torsion spring 32, so that the bottom of the locking claw 31 is tightly fitted with the ratchet 211. When in use, stepping on the pedal 2 makes the ratchet 211 rotate along the rotating shaft 12. During this process, the guide groove 212 rotates and disengages from the locking claw 31, and the locking claw 31 slides with each ratchet tooth of the ratchet 211. During the rotation of the guide groove 212, the spring 13 is elastically stretched, and the brake member is driven to brake as the ratchet 211 rotates; after stopping stepping on the pedal 2, the bottom of the locking claw 31 slides into a ratchet groove of the ratchet 211, and the ratchet 211 rotates in the opposite direction under the elastic contraction of the spring 13. After the locking claw 31 is subjected to the force applied by the ratchet 211 rotating in the opposite direction, it also rotates in the same direction. The elastic direction of the spring 32 is upward, and the locking claw 31 is lifted upward, so that the bottom of the locking claw 31 is engaged in the ratchet groove, and the brake part remains in the braking state. At this time, the user's foot can achieve the braking effect even if it is away from the pedal 2; when starting again, the pedal 2 is stepped on, and the locking claw 31 rotates under the elastic lifting action of the torsion spring 32, and the bottom of the locking claw 31 is separated from the ratchet groove. The user then reduces the force of stepping on the pedal 2, and the pedal 2 is reset under the elastic contraction of the spring 13, and the ratchet 211 also resets and rotates at the same time, and finally the bottom wall of the guide groove 212 located at the bottom of the ratchet 211 contacts the bottom of the locking claw 31, and the locking claw 31 slides into the guide groove 212. At this time, the elastic direction of the torsion spring 32 is downward, and the bottom of the locking claw 31 is elastically pressed on the ratchet 211; the automatic parking effect is achieved.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-locking parking pedal for a sweeper, characterized in that: The locking member is connected to the bottom of the pedal, and the locking member is rotatably connected to the rotating shaft. One end of the spring is connected to the side guard plate, and the other end is connected to the locking member. The elastic pulling of the spring realizes the rotation of the locking member along the rotating shaft. The locking member includes a ratchet and a guide groove arranged below the ratchet. The rear side of the extension plate is fixedly connected to the front side of the side guard plate, and the rear side of the extension plate is rotatably connected to a locking claw for clamping with the ratchet. A torsion spring is provided on the front side of the locking claw, and the other end of the torsion spring is rotatably connected to the front side of the extension plate, and the guide groove is used to make the locking claw rotate into the guide groove.

2. The self-locking parking pedal for a sweeper according to claim 1, characterized in that: A limiting plate is provided above the extension plate, and the limiting plate abuts against the top of the locking claw.

3. The self-locking parking pedal for a sweeper according to claim 1, characterized in that: A mounting plate is provided at the bottom of the base plate, a motor switch is provided on the mounting plate, and a pressing piece for pressing the motor switch is provided on the ratchet.

4. The self-locking parking pedal for a sweeper according to claim 3, characterized in that: A spring sheet extends from the bottom of the motor switch, and the other end of the spring sheet extends to the top of the pressing member and abuts against the top of the pressing member.

5. The self-locking parking pedal for a sweeper according to claim 1, characterized in that: A swing arm extends from the front side of the locking claw, and the swing arm is provided with a mounting hole for mounting one end of the torsion spring.

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