A synchronous lifting mechanism for the baffle of a sweeper and the sweeper thereof.

Abstract

This invention discloses a synchronous lifting mechanism for the baffles of a sweeper and the sweeper itself, belonging to the field of sweeper technology. The synchronous lifting mechanism for the baffles includes: a main brush lifting mechanism, a support assembly, left and right baffle fixing plates, and a baffle lifting mechanism. When the main brush lifting mechanism drives the left and right baffle fixing plates to lift, the left and right baffle fixing plates synchronously drive the baffle lifting mechanism to deflect, so that the left and right baffles connected to the left and right baffle fixing plates and the rear baffle connected to the baffle lifting mechanism rise synchronously away from the ground. By having the baffle lifting mechanism follow the synchronous lifting action of the main brush lifting mechanism, the left and right baffles and the rear baffle are raised in height. This avoids entanglement with ground water pipes, wires, etc., during the sweeper's passage over obstacles, improving the sweeper's operational safety, reducing manual intervention, and increasing cleaning efficiency.

Description

Technical Field

[0001] This invention relates to the field of sweeper technology, and in particular to a sweeper with a synchronous lifting mechanism for the baffle and the sweeper thereof. Background Technology

[0002] A street sweeper, also known as a road sweeper or street cleaning vehicle, is a specialized sanitation equipment that integrates road sweeping, garbage collection, and transportation. It has a wide range of applications, and its technological development has evolved from mechanization to new energy sources and intelligent systems.

[0003] Existing sweepers have side and rear guards at the bottom. These guards prevent dust from spreading from the main roller brush and debris from leaking out, and also help to gather debris, improving cleaning efficiency. However, existing guards are generally fixed to the longitudinal support plate of the frame with screws and cannot be dynamically raised or lowered. When the sweeper passes over tubular or strip-shaped objects such as water pipes or electrical wires, the guards cannot be raised, causing these objects to be dragged along. For manually driven sweepers, this requires manual removal of the obstacles; for autonomous sweepers, it can lead to tangling of pipes and wires, damaging the sweeper and affecting its operating efficiency and safety. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a synchronous lifting mechanism for the baffle of a sweeper and the sweeper itself, so as to solve the technical problem that the baffle of the existing sweeper cannot be raised or lowered, which affects the operating efficiency and safety of the sweeper.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, embodiments of the present invention provide a synchronous lifting mechanism for the baffle of a sweeper, comprising: A main brush lifting mechanism, wherein the main brush lifting mechanism includes a main brush rotating shaft; A support assembly, comprising a left longitudinal plate and a right longitudinal plate arranged relatively vertically, wherein the two ends of the main brush shaft are movably connected to the left longitudinal plate and the right longitudinal plate, respectively; Left and right baffle fixing plates, the middle of which is hinged to the drive end of the main brush lifting mechanism; and A baffle lifting mechanism is connected to the support assembly, and the lifting end of the baffle lifting mechanism is hinged to the left and right baffle fixing plates. When the main brush lifting mechanism drives the left and right baffle fixing plates to lift, the left and right baffle fixing plates simultaneously drive the baffle lifting mechanism to deflect, so that the left and right baffles connected to the left and right baffle fixing plates and the rear baffle connected to the baffle lifting mechanism rise synchronously away from the ground.

[0006] The deflector lifting mechanism includes a left lifting component, a right lifting component, and a rear deflector rotating shaft connected to the left and right lifting components. The left lifting component is connected to the left longitudinal plate, the right lifting component is connected to the right longitudinal plate, and the rear deflector is fixedly connected to the rear deflector rotating shaft. The left lifting component is controlled by the deflection of the left and right deflector fixing plates, which synchronously drives the rear deflector rotating shaft to rotate, thereby driving the rear deflector to rotate and rise.

[0007] The left lifting assembly includes: a rear link, a connecting rod hinged to the lower end of the rear link, and a rear deflector swing arm hinged to the end of the connecting rod; the upper end of the rear link is rotatably connected to the left longitudinal plate, the lower end of the rear link is rotatably connected to the left and right deflector fixing plates, and the upper end of the rear deflector swing arm is connected to the rear deflector rotation shaft.

[0008] The rear bumper swing arm includes a main body and a bent portion extending from the top of the main body. The top of the bent portion is fixedly connected to the rear bumper rotation shaft, and the lower end of the main body is rotatably connected to the connecting rod.

[0009] The right-side lifting assembly includes a lifting swing arm, the top end of which is rotatably connected to the right longitudinal plate, and the bottom end of which is hinged to the left and right baffle fixing plates.

[0010] The rear connecting rod, the connecting rod, and the rear bumper swing arm are all located on the outer side of the left longitudinal plate.

[0011] The left and right baffle fixing plates include a left fixing plate and a right fixing plate, wherein a left baffle is connected to the left fixing plate and a right baffle is provided on the right fixing plate.

[0012] The main brush lifting mechanism includes: a left lifting component, a right lifting component, and a drive module for driving the left lifting component and / or the right lifting component. The drive end of the drive module is connected to the main brush shaft. The left lifting component is connected to the left longitudinal plate, the right lifting component is connected to the right longitudinal plate, the drive end of the left lifting component is connected to the left fixed plate, and the drive end of the right lifting component is connected to the right fixed plate.

[0013] The left and right lifting assemblies have the same structure, each including a front link, a connecting rod, and a chain. The middle part of the front link is rotatably connected to the support assembly, and the lower end of the front link is hinged to the left and right baffle fixing plates. One end of the chain is connected to the main brush shaft, and the other end is connected to the middle part of the front link. The left and / or right lifting assemblies also include a return elastic element, one end of which is connected to the support assembly, and the other end is connected to the upper end of the front link.

[0014] Secondly, embodiments of the present invention also provide a sweeper, the sweeper including a baffle synchronous lifting mechanism as described in any of the above-mentioned sweeper, and a side brush assembly connected to the support assembly.

[0015] The sweeper of the present invention has a synchronous lifting mechanism for the baffle and the sweeper itself. The baffle lifting mechanism moves synchronously with the main brush lifting mechanism, thereby raising the left and right baffles and the rear baffle. This prevents the sweeper from getting tangled with water pipes, wires, etc. on the ground when it crosses obstacles, improving the operational safety of the sweeper and reducing manual intervention to improve cleaning efficiency.

[0016] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are described in detail below. Attached Figure Description

[0017] Figure 1 and Figure 2 These are schematic diagrams of the first and second perspectives of the synchronous lifting mechanism of the sweeper's bumper in an embodiment of the present invention.

[0018] Figure 3 and Figure 4 These are schematic diagrams from the third and fourth perspectives of the synchronous lifting mechanism of the sweeper's bumper in an embodiment of the present invention.

[0019] Figure 5 and Figure 6 for Figure 3 The diagram shows the structure from different perspectives after hiding the main brush component.

[0020] Figure 7 This is a schematic diagram of the hidden support component and main brush component of the synchronous lifting mechanism of the sweeper in an embodiment of the present invention.

[0021] Figure 8 for Figure 7 The diagram shows a magnified view of part A.

[0022] Figure 9 for Figure 7 The diagram shows a magnified view of part B.

[0023] Figure 10 for Figure 7 The diagram shows another structural feature from a different angle.

[0024] Explanation of reference numerals in the attached figures: Sweeper 100, Left longitudinal plate 1, Right longitudinal plate 2, Main brush assembly 10, Main brush rotating shaft 11, Roller brush 12, Baffle lifting mechanism 3, Left lifting assembly 31, Right lifting assembly 32, Rear baffle rotating shaft 33, Rear baffle 50, Rear connecting rod 311, Connecting rod 312, Rear baffle swing arm 313, Swing arm main body 3131, Bending part 3132, Connecting rod main body 3111, First pin 3112, Second pin 3113, Third pin 3121, Left baffle 30, Lifting swing arm 321, Fourth pin 322, Fifth pin 323, Right baffle 40 6. Left and right baffle fixing plates, 61. Left fixing plate, 62. Right fixing plate, main brush lifting mechanism, 41. Left lifting assembly, 42. Right lifting assembly, drive module, 413. First front connecting rod, 411. First connecting rod, 414. Main brush lifting synchronous shaft, 43. Movable connecting assembly, 412. Connecting block, 4121. Ninth pin, 4122. Tenth pin, 3123. Sixth pin, 4131. Seventh pin, 4132. Eighth pin, 4133. Second front connecting rod, 422. Second connecting rod, 421. Second chain, 423. Return elastic element, 44. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Existing sweepers have left and right side guards and a rear guard at the bottom. These guards prevent dust from spreading from the main roller brush and debris from leaking out, and also help to gather debris, improving sweeping efficiency. However, existing guards are generally fixed to the longitudinal support plate of the frame with screws and cannot be dynamically raised or lowered. When the sweeper passes over tubular or strip-shaped objects such as water pipes or electrical wires, the guards cannot be raised, causing these objects to be dragged along. For manually driven sweepers, this requires manual removal of the obstacles; for autonomous sweepers, it can lead to entanglement of pipes and damage, thus affecting the sweeper's operating efficiency and safety. Based on the above requirements, this embodiment provides a sweeper guard synchronous lifting mechanism and a sweeper 100 thereof.

[0033] Please see Figures 1 to 10 In this embodiment, the sweeper 100 includes: a left longitudinal plate 1, a right longitudinal plate 2 vertically arranged relative to the left longitudinal plate 1, and a main brush assembly 10 disposed between the left longitudinal plate 1 and the right longitudinal plate 2. The two ends of the main brush shaft 11 of the main brush assembly 10 are rotatably connected to the left longitudinal plate 1 and the right longitudinal plate 2, respectively. The rear ends of the left longitudinal plate 1 and the right longitudinal plate 2 in the same direction are also connected to side brush assemblies.

[0034] Because the existing sweeper bumpers cannot be raised and lowered, they are prone to entanglement with ground obstacles, which can damage the sweeper and affect its operating efficiency and safety. Therefore, the sweeper 100 in this embodiment is also equipped with a synchronous raising and lowering mechanism for the sweeper bumpers on the left longitudinal plate 1 and the right longitudinal plate 2. This mechanism controls the automatic raising height of the bumpers when the sweeper passes over obstacles, thereby improving the operating safety and efficiency of the sweeper 100.

[0035] Please continue reading. Figures 1 to 10 The synchronous lifting mechanism of the sweeper's bumper in this embodiment includes: The main brush lifting mechanism includes a main brush shaft 11 and a roller brush 12 connected to the main brush shaft 11. The main brush lifting mechanism is used to lift the main brush assembly 10 off the ground.

[0036] The support assembly includes a left longitudinal plate 1 and a right longitudinal plate 2 arranged vertically relative to each other, and the two ends of the main brush shaft 11 are movably connected to the left longitudinal plate 1 and the right longitudinal plate 2 respectively; the support assembly is used to support and fix the main brush assembly 10, the main brush lifting mechanism, etc.

[0037] Left and right baffle fixing plates 6 are hinged at the middle to the drive end of the main brush lifting mechanism; the left and right baffle fixing plates 6 are driven to move up and down by the main brush lifting mechanism.

[0038] A barrier lifting mechanism 3 is connected to the support assembly. The lifting end of the barrier lifting mechanism 3 is hinged to the left and right barrier fixing plates. The barrier lifting mechanism 3 is used to lift the left and right barriers and the rear barrier from the ground.

[0039] When the main brush lifting mechanism drives the left and right baffle fixing plates 6 to lift, the left and right baffle fixing plates 6 simultaneously drive the baffle lifting mechanism 3 to deflect, so that the left and right baffles connected to the left and right baffle fixing plates 6 and the rear baffle connected to the baffle lifting mechanism 3 are raised synchronously away from the ground.

[0040] In this embodiment, the baffle synchronous lifting mechanism of the sweeper uses the lifting power of the main brush lifting mechanism of the sweeper 100 to synchronously drive the baffle lifting mechanism 3 to lift, so as to realize the synchronous lifting of the left and right baffles and the rear baffle. This increases the height of the baffles above the ground when the sweeper 100 is crossing obstacles, reduces the probability of getting tangled in obstacles such as wires, reduces the frequency of manually clearing obstacles, and ultimately improves the operating efficiency and safety of the sweeper 100.

[0041] It is understood that, in another embodiment, the baffle lifting mechanism 3 can also be independently mounted on the support assembly. In this case, the baffle lifting mechanism 3 has its own lifting power drive module. The baffle lifting mechanism 3 relies on its own lifting power drive module to achieve the lifting action, thereby achieving independent lifting control of the main brush assembly 10 and the baffle without relying on the power of the main brush lifting mechanism.

[0042] Please refer to it again. Figure 3 , Figure 4 and Figure 5 The baffle lifting mechanism 3 includes: a left lifting component 31, a right lifting component 32, and a rear baffle rotating shaft 33 connected to the left lifting component 31 and the right lifting component 32. The left lifting component 31 is connected to the left longitudinal plate 1, the right lifting component 32 is connected to the right longitudinal plate 2, and the rear baffle 50 is fixedly connected to the rear baffle rotating shaft 33. The left lifting component 31 is controlled by the deflection of the left and right baffle fixing plates, and synchronously drives the rear baffle rotating shaft 33 to rotate, so as to drive the rear baffle 50 to deflect and rise.

[0043] The rear bumper 50 is fixedly connected to the rear bumper rotating shaft 33 along its length. When the rear bumper rotating shaft 33 rotates, the rear bumper 50 will swing along with the rear bumper rotating shaft 33. As a result, the edge of the rear bumper 50 near the ground will rise, so that the longitudinal space between the lower edge of the rear bumper 50 and the ground will increase, so that the sweeper 100 can smoothly cross the obstacle.

[0044] Specifically, the left lifting assembly 31 includes: a rear connecting rod 311, a connecting rod 312 hinged to the lower end of the rear connecting rod 311, and a rear bumper swing arm 313 hinged to the end of the connecting rod 312; the upper end of the rear connecting rod 311 is rotatably connected to the left longitudinal plate 1, the lower end of the rear connecting rod 311 is rotatably connected to the left fixing plate 61 of the left and right bumper fixing plates 6, and the upper end of the rear bumper swing arm 313 is connected to the rear bumper rotation shaft 33. Figure 5 As shown, the rear connecting rod 311 is arranged roughly vertically, the connecting rod 312 is arranged horizontally, and the rear bumper swing arm 313 is arranged roughly vertically. The rear connecting rod 311, connecting rod 312, and rear bumper swing arm 313 together form a swing transmission mechanism. The lower end of the rear connecting rod 311 is hinged to the left fixed plate 61, which is controlled by the left lifting assembly 41. During the lifting process, the left lifting assembly 41 drives the left fixed plate 61 to move upwards towards the rear end of the left longitudinal plate 1 (the rear end is the end opposite the location of the side brush assembly). The rear bumper rotating shaft 33 is rotatably connected to the left longitudinal plate 1 and the right longitudinal plate 2. Therefore, the rear bumper swing arm 313 uses the rear bumper rotating shaft 33 as a fulcrum for rotation. The swing of the rear bumper swing arm 313 drives the rear bumper rotating shaft 33 to rotate a certain angle, ultimately causing the rear bumper 50 to swing, making its bottom edge away from the ground.

[0045] Please refer to it again. Figure 8 The rear bumper swing arm 313 includes a main body 3131 and a bent portion 3132 extending from the top of the main body 3131. The top of the bent portion 3132 is fixedly connected to the rear bumper rotation shaft 33, and the lower end of the main body 3131 is rotatably connected to the connecting rod 312. That is, in this embodiment, the rear bumper swing arm 313 is an L-shaped structure. When the left fixed plate 61 is moved at an angle upward to the rear end of the left longitudinal plate 1, it drives the rear bumper swing arm 313 to swing, so that the rear bumper rotation shaft 33 rotates clockwise with the rear bumper swing arm 313, ultimately causing the rear bumper 50 to swing upward to the rear end, avoiding spatial interference between the rear bumper 50 swinging upward to the front end and the main brush assembly 10.

[0046] The rear connecting rod 311 includes a connecting rod body 3111. The top end of the connecting rod body 3111 is rotatably connected to the left longitudinal plate 1 via a first pin 3112. The lower end of the connecting rod body 3111 is rotatably connected to the front end of the connecting rod 312 via a second pin 3113. The rear end of the connecting rod 312 is connected to the lower end of the rear bumper swing arm 313 via a third pin 3121. The second pin 3113 is also connected to the left side fixing plate 61. A left side bumper 30 is connected to the left side fixing plate 61, and the left side bumper 30 is connected to the left side fixing plate 61 by screws for easy replacement of the bumper later.

[0047] Please see Figure 4 The right lifting assembly 32 includes a lifting swing arm 321. The top end of the lifting swing arm 321 is rotatably connected to the right longitudinal plate 2, and the bottom end of the lifting swing arm 321 is hinged to the right fixing plate 62 of the left and right baffle fixing plates 6. The right baffle 40 is detachably connected to the right fixing plate 62.

[0048] The top end of the lifting arm 321 is rotatably connected to the right longitudinal plate 2 via the fourth pin 322, and the lower end is movably connected to the right fixed plate 62 via the fifth pin 323.

[0049] like Figure 3 As shown, in this embodiment, the rear connecting rod 311, the connecting rod 312, and the rear bumper swing arm 313 are all located on the outer side of the left longitudinal plate 1. Here, the outer side refers to the side of the left longitudinal plate 1 away from the right longitudinal plate 2, that is, the side away from the main brush assembly 10, so as to avoid damage to the bumper lifting mechanism by garbage and other debris during the cleaning process.

[0050] The left and right baffle fixing plates 6 include a left fixing plate 61 and a right fixing plate 62. The left fixing plate 61 is connected to a left baffle 30, and the right fixing plate 62 is provided with a right baffle 40. The left fixing plate 61 is located on the outer side of the left longitudinal plate 1, and the right fixing plate 62 is located on the outer side of the right longitudinal plate 2.

[0051] The rear bumper rotating shaft 33 is rotatably connected to the left longitudinal plate 1 and the right longitudinal plate 2 via a bushing. In another embodiment, the rear bumper rotating shaft 33 can also be fixedly connected to the lifting swing arm 321, so that the lifting swing arm 321 and the rear bumper swing arm 313 swing synchronously to drive the left fixed plate 61 and the right fixed plate 62 connected thereto, respectively.

[0052] Please refer to it again. Figures 2 to 5The main brush lifting mechanism includes: a left lifting component 41, a right lifting component 42, and a drive module 5 for driving the left lifting component 41 and / or the right lifting component 42. The drive end of the drive module 5 is connected to the main brush rotating shaft 11. The left lifting component 41 is connected to the left vertical plate 1 and the main brush rotating shaft 11. The right lifting component 42 is connected to the right vertical plate 2 and the main brush rotating shaft 11. The drive end of the left lifting component 41 is connected to the left fixed plate 61. The drive end of the right lifting component 42 is connected to the right fixed plate 62.

[0053] The left-side lifting assembly 41 includes a first front connecting rod 413, a first connecting member 411, and a first chain 414. The middle part of the first front connecting rod 413 is rotatably connected to the left longitudinal plate 1 of the support assembly, and the lower end of the first front connecting rod 413 is hinged to the left fixing plate 61 of the left and right baffle fixing plates 6. One end of the first chain 414 is connected to the main brush shaft 11, and the other end is connected to the middle part of the first front connecting rod 413. Specifically, the connection point between the other end of the first chain 414 and the first front connecting rod 413 is located between position A and position B. Position A is the hinge point between the first front connecting rod 413 and the left longitudinal plate 1, and position B is the connection point between the first front connecting rod 413 and the left fixing plate 61. The rotational connecting shaft between the middle part of the first front connecting rod 413 and the left longitudinal plate 1 is the swing fulcrum of the first front connecting rod 413. When the drive module 5 pulls the main brush shaft 11 upward, it simultaneously pulls the first chain 414 to the rear end. The first chain 414 pulls the first front connecting rod 413 to swing at its pivot point with the left longitudinal plate 1, which in turn drives the left fixed plate 61 to shift to the rear end, ultimately causing the left baffle 30 to rise in height.

[0054] The upper end of the first connecting rod 411 is connected to the main brush lifting synchronous shaft 43, and the lower end is hinged to the main brush rotating shaft 11. In this embodiment, the driving end of the driving module 5 is movably connected to the first connecting rod 411. The first connecting rod 411 and the driving end of the driving module 5 are connected by a movable connecting assembly 412.

[0055] Please refer to it again. Figure 9 The middle part of the first front connecting rod 413 is connected to the left longitudinal plate 1 through the sixth pin 4131, the lower part of the first front connecting rod 413 is connected to the first chain 414 through the seventh pin 4132, and its bottom end is connected to the left fixed plate 61 through the eighth pin 4133.

[0056] The movable connection component 412 includes a connection block 4121. The top of the connection block 4121 is connected to the drive end of the drive module 5 via a ninth pin 4122, and the bottom is movably connected to the first connecting rod 411 via a tenth pin 3123.

[0057] Please refer to it again. Figure 4 The right-side lifting assembly 42 includes a second front connecting rod 422, a second connecting rod 421, and a second chain 423. The middle part of the second front connecting rod 422 is rotatably connected to the right longitudinal plate 2 of the support assembly, and the lower end of the second front connecting rod 422 is hinged to the right fixing plate 62 of the left and right baffle fixing plates 6. One end of the second chain 423 is connected to the main brush shaft 11, and the other end is connected to the middle part of the second front connecting rod 422. Specifically, the connection position between the other end of the second chain 423 and the second front connecting rod 422 is between a first position and a second position. The first position is the hinge point between the second front connecting rod 422 and the right longitudinal plate 2, and the second position is the connection point between the second front connecting rod 422 and the right fixing plate 62. The rotational connecting shaft between the middle part of the second front connecting rod 422 and the right longitudinal plate 2 is the swing fulcrum of the second front connecting rod 422. When the drive module 5 pulls the main brush shaft 11 upward, the main brush shaft 11 pulls the second chain 423, which in turn pulls the second front connecting rod 422 to swing at its pivot point with the right longitudinal plate 2. This synchronously drives the right fixed plate 62 to shift rearward, ultimately raising the right side baffle 40. The second connecting rod 421 is also fixedly connected to the main brush lifting synchronous shaft 43, so that the first connecting rod 411 and the second connecting rod 421 rotate synchronously.

[0058] Please refer to it again. Figure 10 The left lifting assembly 4 also includes a return elastic element 44, one end of which is connected to the left longitudinal plate 1, and the other end is connected to the upper end of the first front connecting rod 413. When the drive module 5 drives the main brush shaft 11 to rise, the top of the first front connecting rod 413 stretches the return elastic element 44. When the drive module 5 drives the main brush shaft 11 to fall, the return elastic element 44 quickly resets, thereby causing the left side cover 30 to quickly descend to its initial height.

[0059] In another embodiment, a return elastic element 44 may also be provided on the right lifting assembly 42 between the second front link 422 and the right longitudinal plate 2 to assist the right side baffle 40 in quickly descending and resetting.

[0060] In this embodiment, the drive module 5 is a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder.

[0061] The sweeper's bumper synchronous lifting mechanism and the sweeper 100 in this embodiment, through the bumper lifting mechanism following the main brush lifting mechanism, synchronously lift and lower, thereby driving the left and right bumpers and the rear bumper to rise in height. When the sweeper crosses obstacles, it avoids entanglement with ground water pipes, wires, etc., improving the sweeper's operational safety, reducing manual intervention and improving cleaning efficiency.

[0062] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A synchronous lifting mechanism for the baffle of a sweeper, characterized in that, include: A main brush lifting mechanism, wherein the main brush lifting mechanism includes a main brush rotating shaft; A support assembly, comprising a left longitudinal plate and a right longitudinal plate arranged relatively vertically, wherein the two ends of the main brush shaft are movably connected to the left longitudinal plate and the right longitudinal plate, respectively; Left and right baffle fixing plates, the middle of which is hinged to the drive end of the main brush lifting mechanism; and A baffle lifting mechanism is connected to the support assembly, and the lifting end of the baffle lifting mechanism is hinged to the left and right baffle fixing plates. When the main brush lifting mechanism drives the left and right baffle fixing plates to lift, the left and right baffle fixing plates simultaneously drive the baffle lifting mechanism to deflect, so that the left and right baffles connected to the left and right baffle fixing plates and the rear baffle connected to the baffle lifting mechanism rise synchronously away from the ground.

2. The synchronous lifting mechanism for the baffle of the sweeper according to claim 1, characterized in that, The baffle lifting mechanism includes: a left lifting component, a right lifting component, and a rear baffle rotating shaft connected to the left lifting component and the right lifting component. The left lifting component is connected to the left longitudinal plate, the right lifting component is connected to the right longitudinal plate, and the rear baffle is fixedly connected to the rear baffle rotating shaft. The left lifting component is controlled by the deflection of the left and right baffle fixing plates, which synchronously drives the rear baffle rotating shaft to rotate, thereby causing the rear baffle to deflect and rise.

3. The synchronous lifting mechanism for the sweeper's bumper according to claim 2, characterized in that, The left lifting assembly includes: a rear link, a connecting rod hinged to the lower end of the rear link, and a rear deflector swing arm hinged to the end of the connecting rod; the upper end of the rear link is rotatably connected to the left longitudinal plate, the lower end of the rear link is rotatably connected to the left and right deflector fixing plates, and the upper end of the rear deflector swing arm is connected to the rear deflector rotation shaft.

4. The synchronous lifting mechanism for the baffle of the sweeper according to claim 3, characterized in that, The rear bumper swing arm includes a main body and a bent portion extending from the top of the main body. The top of the bent portion is fixedly connected to the rear bumper rotation shaft, and the lower end of the main body is rotatably connected to the connecting rod.

5. The synchronous lifting mechanism for the baffle of the sweeper according to claim 4, characterized in that, The right-side lifting assembly includes a lifting swing arm, the top end of which is rotatably connected to the right longitudinal plate, and the bottom end of which is hinged to the left and right baffle fixing plates.

6. The synchronous lifting mechanism for the baffle of the sweeper according to any one of claims 3 to 5, characterized in that, The rear connecting rod, the connecting rod, and the rear bumper swing arm are all located on the outer side of the left longitudinal plate.

7. The synchronous lifting mechanism for the baffle of the sweeper according to claim 6, characterized in that, The left and right baffle fixing plates include a left fixing plate and a right fixing plate, wherein a left baffle is connected to the left fixing plate and a right baffle is provided on the right fixing plate.

8. The synchronous lifting mechanism for the baffle of the sweeper according to claim 7, characterized in that, The main brush lifting mechanism includes: a left lifting component, a right lifting component, and a drive module for driving the left lifting component and / or the right lifting component. The drive end of the drive module is connected to the main brush shaft. The left lifting component is connected to the left longitudinal plate, the right lifting component is connected to the right longitudinal plate, the drive end of the left lifting component is connected to the left fixed plate, and the drive end of the right lifting component is connected to the right fixed plate.

9. The synchronous lifting mechanism for the baffle of the sweeper according to claim 8, characterized in that, The left and right lifting assemblies have the same structure, both including a front link, a connecting rod, and a chain. The middle part of the front link is rotatably connected to the support assembly, and the lower end of the front link is hinged to the left and right baffle fixing plates. One end of the chain is connected to the main brush shaft, and the other end is connected to the middle part of the front link. The left and / or right lifting assemblies also include a return elastic element, one end of which is connected to the support assembly, and the other end is connected to the upper end of the front link.

10. A sweeper, characterized in that, The sweeper includes a baffle synchronous lifting mechanism as described in any one of claims 1 to 9, and a side brush assembly connected to the support assembly.

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