Sweeping machine sweeping brush active contraction device

Abstract

The utility model discloses a sweeper active retraction device, which relates to the field of sweepers and comprises an inner frame, a case is fixedly mounted on the front side of the inner frame, an electric push rod is fixedly mounted in the case, and a rotating arm is fixedly mounted at the output end of the electric push rod. A left pull rope and a right pull rope are fixedly installed at the two ends of the rotating arm respectively, a left sweeping arm is fixedly installed on the left side of the left pull rope, and a right sweeping arm is fixedly installed on the right side of the right pull rope. The electric push rod is controlled to stretch out and draw back to control rotation of the rotating arm, so that the sweeping arm is manually controlled to stretch out and draw back to adapt to various road surface widths from narrow to wide, efficient sweeping capacity can be kept in various environments, working efficiency is greatly improved, and labor intensity of workers is reduced. The flexible adjustment of the sweeping brush arm can ensure the close contact between the sweeping brush and the ground, and effectively remove dust, sandy soil, stones, leaves and other sundries.

Description

Technical Field

[0001] The utility model relates to the technical field of sweepers, in particular to an active retracting device for a sweeping brush of a sweeper. Background Art

[0002] A road sweeper is a mechanical sweeping equipment widely used in roads, public places and other places. The uses of road sweepers are very wide. Generally speaking, according to the uses of sweepers, sweepers can be divided into: road sweepers, sweeping and collecting machines, and special collecting machines. Generally speaking, these three types of sweepers are mainly used in life.

[0003] At present, the brush retraction method of small sweepers in the industry generally uses passive retraction, that is, the lifting and retraction of the brush are controlled by a cylinder. The brush is retracted during the lifting process, and the brush is automatically opened under the action of the spring force when the brush is lowered. This retraction method has the characteristics of simple structure and low cost, but it also has the disadvantage that the brush cannot adjust the sweeping width during the cleaning operation, which limits the operation when encountering some narrow roads. Utility Model Content

[0004] The main purpose of the utility model is to solve the technical problem that the sweeping brush of a sweeper cannot adjust the sweeping width.

[0005] To achieve the above-mentioned purpose, the utility model provides an active retraction device for a sweeping machine brush, comprising an inner frame, a chassis is fixedly installed on the front of the inner frame, an electric push rod is fixedly installed inside the chassis, a rotating arm is fixedly installed on the output end of the electric push rod, a left pull rope and a right pull rope are respectively fixedly installed on both ends of the rotating arm, a left sweeping brush arm is fixedly installed on the left side of the left pull rope, and a right sweeping brush arm is fixedly installed on the right side of the right pull rope.

[0006] Preferably, a left body is fixedly mounted on the bottom of the left sweeping brush arm, a first dust suction port is opened at the bottom of the left body, and a left disc-shaped sweeping brush is fixedly mounted on the bottom of the first dust suction port.

[0007] Preferably, a right machine body is fixedly mounted on the bottom of the right sweeping brush arm, a second dust suction port is opened at the bottom of the right machine body, and a right disc-shaped sweeping brush is fixedly mounted on the bottom of the second dust suction port.

[0008] Preferably, one end of a left pull rod is fixedly mounted on the top of the left sweeping brush arm, a left telescopic spring is fixedly mounted on the other end of the left pull rod, and a left connecting rod is fixedly mounted on one end of the left telescopic spring.

[0009] Preferably, one end of a right pull rod is fixedly mounted on the top of the right sweeping brush arm, a right telescopic spring is fixedly mounted on the other end of the right pull rod, and a right connecting rod is fixedly mounted on one end of the right telescopic spring.

[0010] Preferably, the left sweeping arm and the right sweeping arm are both rotatably connected to the inner frame.

[0011] Preferably, a U-shaped connecting frame is fixedly installed on the top of the frame.

[0012] Preferably, the U-shaped connecting frame includes a vertical support rod, a transverse support rod and a connecting block, the vertical support rod is fixedly installed on the top of the inner frame, the transverse support rod is fixedly installed on the top of the vertical support rod, and the connecting block is fixedly installed on the outside of the vertical support rod.

[0013] Preferably, the number of the vertical support rods is set to two, and the two vertical support rods are arranged in parallel.

[0014] Preferably, the inner frame and the U-shaped connecting frame are both made of aluminum alloy.

[0015] Beneficial effects that can be achieved by the utility model:

[0016] 1. The sweeper's active brush retraction device controls the rotation of the rotating arm by controlling the extension and retraction of the electric push rod, thereby realizing manual control of the retraction and expansion of the sweeping brush arm to adapt to various road widths from narrow to wide, thereby maintaining efficient cleaning capabilities in various environments and greatly improving work efficiency. The flexible adjustment of the sweeping brush arm can ensure close contact between the sweeping brush and the ground, effectively removing dust, sand, stones, leaves and other debris.

[0017] 2. The sweeping machine has an active retracting device for sweeping brushes, which cleans the dust on the ground through the left disc-shaped sweeping brush and the right disc-shaped sweeping brush. The cleaned garbage is collected through the first dust suction port and the second dust suction port. Through the setting of the telescopic spring, the disc-shaped sweeping brush can be automatically opened under the action of the spring force while the sweeping brush arm descends. Through the setting of the U-shaped connecting frame, the retracting device can be fixedly installed as a whole inside the sweeping machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a top view of the overall structure of the utility model;

[0021] Figure 3This is a schematic diagram of the electric push rod structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the left disc-shaped sweeping brush and the right disc-shaped sweeping brush of the utility model;

[0023] Figure 5 It is a schematic structural diagram of the left connecting rod and the right connecting rod of the utility model.

[0024] In the figure: 1. inner frame; 2. chassis; 3. electric push rod; 4. rotating arm; 5. left pull rope; 6. right pull rope; 7. left sweeping brush arm; 8. right sweeping brush arm; 9. left body; 10. first suction port; 11. left disc-shaped sweeping brush; 12. right body; 13. second suction port; 14. right disc-shaped sweeping brush; 15. left pull rod; 16. left telescopic spring; 17. left connecting rod; 18. right pull rod; 19. right telescopic spring; 20. right connecting rod; 21. U-shaped connecting frame; 2101. vertical support rod; 2102. horizontal support rod; 2103. connecting block. DETAILED DESCRIPTION

[0025] In order to better understand the above technical solution, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0026] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] It should be noted that, in the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the coordinate system shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] The utility model provides an active retracting device for a sweeping brush of a cleaning machine, comprising an inner frame 1, a chassis 2 is fixedly installed on the front of the inner frame 1, an electric push rod 3 is fixedly installed inside the chassis 2, a rotating arm 4 is fixedly installed on the output end of the electric push rod 3, a left pull rope 5 and a right pull rope 6 are respectively fixedly installed on both ends of the rotating arm 4, a left sweeping brush arm 7 is fixedly installed on the left side of the left pull rope 5, a right sweeping brush arm 8 is fixedly installed on the right side of the right pull rope 6, a right machine body 12 is fixedly installed on the bottom of the right sweeping brush arm 8, a second dust suction port 13 is opened at the bottom of the right machine body 12, and a right disc-shaped sweeping brush 14 is fixedly installed on the bottom of the second dust suction port 13.

[0031] refer to Figure 1 , Figure 4 and Figure 5 A left machine body 9 is fixedly mounted at the bottom of the left sweeping brush arm 7 , a first dust suction port 10 is opened at the bottom of the left machine body 9 , and a left disc-shaped sweeping brush 11 is fixedly mounted at the bottom of the first dust suction port 10 .

[0032] The above solution is adopted: the left disc-shaped sweeping brush 11 and the right disc-shaped sweeping brush 14 clean the dust on the ground, and the cleaned garbage is collected through the first dust suction port 10 and the second dust suction port 13.

[0033] refer to Figure 1 , Figure 2 and Figure 5The top of the left sweeping arm 7 is fixedly installed with one end of a left pull rod 15, the other end of the left pull rod 15 is fixedly installed with a left telescopic spring 16, one end of the left telescopic spring 16 is fixedly installed with a left connecting rod 17, the top of the right sweeping arm 8 is fixedly installed with one end of a right pull rod 18, the other end of the right pull rod 18 is fixedly installed with a right telescopic spring 19, one end of the right telescopic spring 19 is fixedly installed with a right connecting rod 20, the left sweeping arm 7 and the right sweeping arm 8 are both rotatably connected to the inner frame 1, and a U-shaped connecting frame is fixedly installed on the top of the inner frame 1 21, the U-shaped connecting frame 21 includes a vertical support rod 2101, a transverse support rod 2102 and a connecting block 2103, the vertical support rod 2101 is fixedly installed on the top of the inner frame 1, the transverse support rod 2102 is fixedly installed on the top of the vertical support rod 2101, and the connecting block 2103 is fixedly installed on the outside of the vertical support rod 2101. The number of vertical support rods 2101 is set to two, and the two vertical support rods 2101 are arranged in parallel. The inner frame 1 and the U-shaped connecting frame 21 are both made of aluminum alloy.

[0034] By adopting the above scheme, through the setting of the telescopic spring, the disc-shaped sweeping brush can be automatically opened under the action of the spring force while the sweeping brush arm descends, and through the setting of the U-shaped connecting frame 21, the retracting device can be fixedly installed inside the sweeping machine body as a whole.

[0035] Working principle: When in use, the staff controls the extension and retraction of the electric push rod 3 through the remote control device, and then controls the rotation of the rotating arm 4. The rotating arm 4 rotates while driving the pull rope to move, and the pull rope pulls the sweeping brush arm to retract. At this time, the disc-shaped sweeping brush is folded. When the rotating arm 4 rotates in the opposite direction, the pull rope is relaxed, and the sweeping brush arm is opened under the action of the telescopic spring and the ground force of the sweeping brush, thereby realizing manual control of the retraction and extension of the sweeping brush arm to adapt to the cleaning of roads of different widths.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0037] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sweeping machine brush active retraction device, comprising an inner frame (1), characterized in that: A chassis (2) is fixedly mounted on the front of the inner frame (1), an electric push rod (3) is fixedly mounted inside the chassis (2), a rotating arm (4) is fixedly mounted on the output end of the electric push rod (3), a left pull rope (5) and a right pull rope (6) are fixedly mounted on both ends of the rotating arm (4), a left sweeping arm (7) is fixedly mounted on the left side of the left pull rope (5), and a right sweeping arm (8) is fixedly mounted on the right side of the right pull rope (6).

2. The active retraction device for sweeping brush of a sweeping machine according to claim 1, characterized in that: A left machine body (9) is fixedly mounted on the bottom of the left sweeping brush arm (7), a first dust suction port (10) is opened on the bottom of the left machine body (9), and a left disc-shaped sweeping brush (11) is fixedly mounted on the bottom of the first dust suction port (10).

3. The active retraction device for sweeping brush of a sweeping machine according to claim 1, characterized in that: A right machine body (12) is fixedly mounted on the bottom of the right sweeping arm (8), a second dust suction port (13) is provided on the bottom of the right machine body (12), and a right disc-shaped sweeping brush (14) is fixedly mounted on the bottom of the second dust suction port (13).

4. The active retraction device for sweeping brush of a sweeping machine according to claim 1, characterized in that: One end of a left pull rod (15) is fixedly mounted on the top of the left sweeping arm (7), a left telescopic spring (16) is fixedly mounted on the other end of the left pull rod (15), and a left connecting rod (17) is fixedly mounted on one end of the left telescopic spring (16).

5. The active retraction device for sweeping brush of a sweeping machine according to claim 1, characterized in that: One end of a right pull rod (18) is fixedly mounted on the top of the right sweeping arm (8), a right telescopic spring (19) is fixedly mounted on the other end of the right pull rod (18), and a right connecting rod (20) is fixedly mounted on one end of the right telescopic spring (19).

6. The active retraction device for sweeping brush of a sweeping machine according to claim 1, characterized in that: The left sweeping arm (7) and the right sweeping arm (8) are both rotatably connected to the inner frame (1).

7. The active retraction device for sweeping brush of a sweeping machine according to claim 1, characterized in that: A U-shaped connecting frame (21) is fixedly mounted on the top of the inner frame (1).

8. The active retraction device for sweeping brush of a sweeping machine according to claim 7, characterized in that: The U-shaped connecting frame (21) comprises a vertical support rod (2101), a transverse support rod (2102) and a connecting block (2103); the vertical support rod (2101) is fixedly mounted on the top of the inner frame (1); the transverse support rod (2102) is fixedly mounted on the top of the vertical support rod (2101); and the connecting block (2103) is fixedly mounted on the outside of the vertical support rod (2101).

9. The active retraction device for sweeping brush of a sweeping machine according to claim 8, characterized in that: The number of the vertical support rods (2101) is set to two, and the two vertical support rods (2101) are arranged in parallel.

10. The active retraction device for sweeping brush of a sweeping machine according to claim 7, characterized in that: The inner frame (1) and the U-shaped connecting frame (21) are both made of aluminum alloy.

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