Sweeper capable of adjusting ground clearance of brush body

Abstract

The utility model provides a sweeper capable of adjusting the ground clearance of a brush body, which comprises a protective cover assembly, a collecting shovel assembly, a trundle assembly and a brush body assembly, the protective cover assembly comprises a protective cover body and motor fixing seats symmetrically arranged at the left end and the right end of the protective cover body; the two ends of the brush body assembly are in transmission connection with a rotary motor fixed in the motor fixing seat; the shield assembly further comprises a height adjusting mechanism and a locking mechanism, wherein the height adjusting mechanism is connected to the top of the motor fixing base so as to adjust the height of the motor fixing base, and the locking mechanism is connected to the side face of the motor fixing base so as to lock the height of the motor fixing base. The relative position between the motor fixing base and the protective cover body is adjusted through the height adjusting mechanism and the locking mechanism, the ground clearance of the brush body assembly is adjusted within a certain range, the applicability of the sweeper to an operation site is improved, and the sweeping operation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sweepers, in particular to a sweeper with an adjustable brush body height above the ground. Background Art

[0002] The sweeper is a professional environmentally friendly cleaning equipment that can directly collect dust, stones, iron filings, coal slag, etc. into the collection shovel during cleaning. It has the advantages of large cleaning area, high cleaning efficiency, and environmental protection. It is widely used in various industries and occasions such as coal yards, cement plants, carbon plants, ports and docks, and shipyards.

[0003] When a conventional cleaner is working, the height of its brush assembly from the ground is fixed, and the height cannot be adjusted according to the working site, use and wear, etc. When the brush blades of the brush assembly are worn and shortened, the cleaning will not be clean enough, and the brush blades have to be replaced, resulting in a waste of resources. In special working sites, it may even cause damage to the cleaner or the ground, increasing the cost of use. Utility Model Content

[0004] In order to solve the problems in the prior art, the utility model provides a sweeper with an adjustable brush body height from the ground, comprising: a shield assembly, a collecting shovel assembly, a caster assembly and a brush body assembly, wherein the shield assembly comprises a shield body and a motor fixing seat symmetrically arranged at the left and right ends of the shield body, and the two ends of the brush body assembly are transmission connected to a rotating motor fixed in the motor fixing seat; the shield assembly also includes a height adjustment mechanism connected to the top of the motor fixing seat to achieve height adjustment of the motor fixing seat, and a locking mechanism connected to the side of the motor fixing seat to achieve height locking of the motor fixing seat.

[0005] Furthermore, the height adjustment mechanism includes an adjusting screw and a locking nut threadably matched with the adjusting screw, and the motor fixing seat and the shield body are respectively connected to the adjusting screw via the locking nut.

[0006] Furthermore, the locking mechanism is a locking bolt, and vertical strip holes are provided on both sides of the motor fixing seat, and the locking bolt passes through the strip holes to connect the motor fixing seat and the protective cover body.

[0007] Furthermore, evenly distributed textures are provided on both sides of the strip-shaped hole to increase the friction between the locking bolt and the motor fixing seat.

[0008] Furthermore, the caster assembly includes a front caster connected to the front end of the protective shield body through a caster bracket and a rear caster connected to the rear end of the protective shield body, the front caster and the rear caster both include a caster column that vertically passes through the caster bracket and is rotatably connected to the caster bracket, the bottom of the caster column is connected to a caster leg, and the caster leg is rotatably connected to the tire.

[0009] Furthermore, the caster assembly also includes an elastic element sleeved on the outside of the caster column, and two ends of the elastic element respectively abut against the caster bracket and the caster column to cushion the impact of the rugged surface on the sweeper.

[0010] Furthermore, a transverse caster clamp is provided on the top of the caster column of the front caster, and the caster clamp is clamped on the caster bracket after the front caster is twisted to a certain angle to limit the maximum left and right swing angle of the front caster.

[0011] Furthermore, the brush body assembly includes a brush shaft, a brush sheet and a coupling. The brush sheet is fixed to the circumferential surface of the brush shaft through an end face flange, and both ends of the coupling are respectively connected to the brush shaft and the rotary motor.

[0012] Furthermore, the collecting shovel assembly includes a collecting shovel bottom plate and a hydraulic cylinder. One end of the collecting shovel bottom plate is hinged to the bottom of the shield body, and the middle part is connected to the shield body through the hydraulic cylinder. The collecting shovel bottom plate is driven to open and close by the extension and retraction of the hydraulic cylinder.

[0013] Furthermore, steel rulers are provided on both sides of the shield body to provide a reference for the height of the motor fixing seat on both sides of the shield body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The sweeper with adjustable brush height above the ground in the embodiment of the utility model adjusts the ground clearance of the brush assembly within a certain range by adjusting the relative position between the motor fixing seat and the protective cover body, thereby increasing the applicability of the sweeper to the working site and improving the cleaning effect.

[0016] At the same time, the sweeper with adjustable brush height from the ground in the embodiment of the utility model adopts a multi-castor structure, which ensures the working stability of the sweeper when passing through rugged roads and improves the applicability of the sweeper; the front casters have built-in high-strength springs to prevent excessive squeezing of the tires when the road surface changes, thereby preventing damage to the tires and the sweeper. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of a sweeper with adjustable brush height from the ground according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of a sweeper with adjustable brush height from the ground according to an embodiment of the utility model;

[0019] Figure 3 It is a top view of a sweeper with adjustable brush height from the ground according to an embodiment of the utility model;

[0020] Figure 4 is a cross-sectional view of a front caster of an embodiment of the utility model;

[0021] Description of reference numerals:

[0022] 1. Shield assembly; 11. Shield body; 12. Height adjustment mechanism; 13. Motor fixing seat; 14. Steel ruler; 15. Locking mechanism; 16. Caster bracket; 161. Front caster bracket; 162. Rear caster bracket; 2. Rotating motor; 3. Collecting shovel assembly; 31. Collecting shovel bottom plate; 32. Hydraulic cylinder; 4. Caster assembly; 41. Front caster; 42. Rear caster; 43. Caster clamp; 44. Elastic element; 45. Caster column; 46. Caster leg; 5. Brush body assembly. DETAILED DESCRIPTION

[0023] The utility model is described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Each aspect defined in this way can be combined with any other aspect or aspects, unless it is clearly stated that it cannot be combined. In particular, any feature that is considered to be preferred or advantageous can be combined with one or more other features that are considered to be preferred or advantageous.

[0024] In the description of the present invention, it should be understood that the terms "inside", "outside", "up", "down", "left" and "right" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0025] like Figure 1As shown, a sweeper with adjustable brush height above ground provided in this embodiment comprises: a shield assembly 1, a brush assembly 5, a collecting shovel assembly 3 and caster assemblies 4 connected to the front and rear sides of the shield assembly 1, wherein the shield assembly 1 comprises a shield body 11 and a motor fixing seat 13 symmetrically arranged at the left and right ends of the shield body 11, and the two ends of the brush body assembly 5 are drivingly connected to a rotating motor 2 fixed in the motor fixing seat 13. The shield assembly 1 also comprises a height adjustment mechanism 12 connected to the top of the motor fixing seat 13 to achieve height adjustment of the motor fixing seat 13, and a locking mechanism 15 connected to the side of the motor fixing seat 13 to achieve height locking of the motor fixing seat 13. The position of the motor fixing seat 13 in the vertical direction with respect to the shield body 11 can be adjusted by the height adjustment mechanism 12, and further fixed by the locking mechanism 15, thereby adjusting the height above ground of the brush body assembly 5, increasing the applicability of the sweeper to the work site, and improving the cleaning effect.

[0026] In the above embodiment, the specific structural form of the height adjustment mechanism 12 can be selected according to actual needs. For example, the height adjustment mechanism 12 includes an adjusting screw and a locking nut that cooperates with multiple adjusting screw threads. In order to facilitate installation, horizontal connecting plates are provided on both sides of the shield body 11. The connecting plates are located above the motor fixing seat 13, and the connecting plates are provided with connecting holes in the vertical direction for the adjusting screw to pass through. The upper part of the adjusting screw is fixed to the connecting plate of the shield body 11 in cooperation with the locking nut. At the same time, a connecting hole for the adjusting screw to pass through is provided at the top of the motor fixing seat 13, and the lower part of the adjusting screw is connected to the motor fixing seat 13 in cooperation with the locking nut.

[0027] When adjusting the height of the motor fixing seat 13, loosen the locking nuts on both sides of the connecting plate, move the adjusting screw and the motor fixing seat 13 up and down along the axial direction of the adjusting screw, and tighten the locking nuts on both sides of the connecting plate after reaching the predetermined position to achieve a fixed connection between the adjusting screw and the connecting plate. You can also loosen the locking nut on the top of the motor fixing seat 13, move the motor fixing seat 13 up and down along the axial direction of the adjusting screw, and tighten the locking nut on the top of the motor fixing seat 13 after reaching the predetermined position to achieve a fixed connection between the adjusting screw and the motor fixing seat 13.

[0028] In the above embodiment, there are many options for the specific setting of the locking mechanism 15. For example, a locking bolt can be used. Both sides of the motor fixing seat 13 are provided with vertical strip holes for the locking bolts to pass through. The locking bolts pass through the strip holes and are fixedly connected to the shield body 11. When adjusting the height of the motor fixing seat 13, the locking bolts are loosened, and the motor fixing seat 13 moves vertically up and down under the guidance of the strip holes of the locking bolts. After the motor fixing seat 13 reaches the predetermined position, the locking bolts are tightened to achieve a fixed connection between the motor fixing seat 13 and the shield body 11.

[0029] In some embodiments, evenly distributed textures are provided on both sides of the strip-shaped hole to increase the friction between the locking bolt and the motor fixing seat 13 , so that the connection between the motor fixing seat 13 and the protective cover body 11 is more secure.

[0030] like Figure 1 As shown, in some embodiments, the caster assembly 4 includes a front caster 41 and a rear caster 42, and the caster bracket 16 includes a front caster bracket 161 and a rear caster bracket 162. The front caster 41 is connected to the front end of the shield body 11 through the front caster bracket 161, and the rear caster 42 is connected to the rear end of the shield body 11 through the rear caster bracket 162. Among them, the connection between the front caster bracket 161 and the rear caster bracket 162 and the shield body 11 can be connected by fasteners or welding. The front caster 41 and the rear caster 42 both include a wheel column, and the bottom of the caster column 45 is provided with an integrally formed caster leg 46, and the caster leg 46 is rotatably connected to the tire through an axle pin. The front caster bracket 161 and the rear caster bracket 162 are both provided with a vertical through hole, and the caster column 45 is rotatably connected to the through hole on the caster bracket 16 through a bearing. As needed, the bearing in this embodiment can be a sliding bearing or a rolling bearing. It is understandable that when the sweeper is working, the top of the caster leg 46 below the caster column 45 abuts against the bottom of the caster bracket 16 to prevent the caster column 45 from sliding upward relative to the caster bracket 16. At the same time, a limit block is provided on the top of the caster column 45 to prevent the caster column 45 from sliding downward.

[0031] like Figure 4 As shown, in some embodiments, the front caster 41 also includes an elastic element 44 sleeved on the outside of the caster column 45, preferably, the elastic element 44 is a spring. The top of the through hole on the front caster bracket 161 extends inward to form a first stop ring, and the top of the spring abuts on the first stop ring at the top of the through hole. A second stop ring is provided at the bottom of the caster column 45 of the front caster 41, and the bottom of the spring abuts on the second stop ring. Above the first stop ring and below the second stop ring, the caster column 45 is rotatably connected to the through hole on the front caster bracket 161 through a rolling bearing. Among them, the inner ring of the rolling bearing and the caster column 45 are interference fit, and the outer ring of the rolling bearing and the through hole on the caster bracket 16 are clearance fit, so that the caster column 45 can slide up and down while rotating with the caster bracket 16. It is understood that in this embodiment, a travel distance for the caster column 45 to slide is provided between the top of the caster leg 46 below the caster column 45 and the bottom of the front caster bracket 161, and between the stopper at the top of the caster column 45 and the top of the front caster bracket 161. When the road surface changes, the spring in the front caster 41 can play a shock-absorbing role to prevent excessive squeezing of the tire and damage to the tire and the sweeper. Of course, this structure can also be used in the rear caster 42.

[0032] like Figure 3As shown, in some embodiments, a transverse caster clamp 43 is provided on the top of the caster column 45 of the front caster 41. After the front caster 41 is twisted to a certain angle, the caster clamp 43 is clamped on the caster leg 46 of the caster bracket 16 to limit the maximum left and right swing angle of the front caster 41.

[0033] like Figure 2 As shown, in some embodiments, the brush body assembly 5 includes a brush shaft, a brush sheet and a coupling, the brush sheet is fixed to the circumferential surface of the brush shaft through an end face flange, and the two ends of the coupling are respectively connected to the brush shaft and the rotary motor 2. When the rotary motor 2 rotates, the brush shaft is driven to rotate counterclockwise around its axis through the coupling, thereby sweeping the garbage on the ground into the collection shovel assembly 3.

[0034] like Figure 1 As shown, in some embodiments, the collecting shovel assembly 3 includes a collecting shovel bottom plate 31 and a hydraulic cylinder 32. One end of the collecting shovel bottom plate 31 is hinged to the bottom of the shield body 11 through a pin shaft, and one end of the hydraulic cylinder 32 is hinged to the shield body 11, and the other end is hinged to the middle of the collecting shovel bottom plate 31. When the sweeper is working, the piston rod of the hydraulic cylinder 32 shrinks upward, driving the collecting shovel bottom plate 31 to close upward with the shield body 11 to collect the garbage swept by the brush assembly 5. After the sweeper stops working, the piston rod of the hydraulic cylinder 32 extends downward to discharge the garbage in the collecting shovel assembly 3.

[0035] In some embodiments, a steel ruler 14 is provided on both sides of the shield body 11 to provide a reference for the height of the motor fixing seat 13 on both sides of the shield body 11. The scale of the steel ruler 14 ensures that the motor fixing seats 1-3 on both sides of the shield body 11 are at the same height, ensuring the safety of the use of the sweeper and improving the cleaning effect.

[0036] The principles and implementation methods of the present invention are described in this article using specific embodiments. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, the present invention can also be improved and modified without departing from the principle of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A sweeper with adjustable brush height above the ground, characterized in that: include: A shield assembly (1), a collecting shovel assembly (3), a caster assembly (4) and a brush body assembly (5), wherein the shield assembly (1) comprises a shield body (11) and a motor fixing seat (13) symmetrically arranged at the left and right ends of the shield body (11), and the two ends of the brush body assembly (5) are drivingly connected to a rotating motor (2) fixed in the motor fixing seat (13); the shield assembly (1) further comprises a height adjustment mechanism (12) connected to the top of the motor fixing seat (13) to achieve height adjustment of the motor fixing seat (13), and a locking mechanism (15) connected to the side of the motor fixing seat (13) to achieve height locking of the motor fixing seat (13).

2. The sweeper with adjustable brush height above the ground according to claim 1, characterized in that: The height adjustment mechanism (12) comprises an adjustment screw and a locking nut threadably matched with the adjustment screw, and the motor fixing seat (13) and the shield body (11) are respectively connected to the adjustment screw via the locking nut.

3. The sweeper with adjustable brush height above the ground according to claim 1, characterized in that: The locking mechanism (15) is a locking bolt, and both sides of the motor fixing seat (13) are provided with vertical strip holes, and the locking bolt passes through the strip holes to connect the motor fixing seat (13) and the shield body (11).

4. The sweeper with adjustable brush height above the ground according to claim 3, characterized in that: Evenly distributed patterns are provided on both sides of the strip-shaped hole to increase the friction between the locking bolt and the motor fixing seat (13).

5. The sweeper with adjustable brush height above the ground according to claim 1, characterized in that: The caster assembly (4) comprises a front caster (41) connected to the front end of the shield body (11) via a caster bracket (16) and a rear caster (42) connected to the rear end of the shield body (11); the front caster (41) and the rear caster (42) both comprise a caster column (45) vertically passing through the caster bracket (16) and rotatably connected to the caster bracket (16); a caster leg (46) is connected to the bottom of the caster column (45); and the caster leg (46) is rotatably connected to a tire.

6. The sweeper with adjustable brush height above the ground according to claim 5, characterized in that: The caster assembly (4) further comprises an elastic element (44) sleeved on the outside of the caster column (45), with two ends of the elastic element (44) respectively abutting against the caster bracket (16) and the caster column (45) to cushion the impact of the rough ground on the sweeper.

7. The sweeper with adjustable brush height above the ground according to claim 5, characterized in that: A transverse caster clamping plate (43) is provided on the top of the caster column (45) of the front caster (41); the caster clamping plate (43) is clamped on the caster bracket (16) after the front caster (41) is twisted to a certain angle, so as to limit the maximum left-right swing angle of the front caster (41).

8. The sweeper with adjustable brush height above the ground according to claim 1, characterized in that: The brush body assembly (5) comprises a brush shaft, a brush sheet and a coupling. The brush sheet is fixed to the circumferential surface of the brush shaft via an end face flange. Both ends of the coupling are respectively connected to the brush shaft and the rotary motor (2) in driving connection.

9. The sweeper with adjustable brush height above the ground according to claim 1, characterized in that: The collecting shovel assembly (3) comprises a collecting shovel bottom plate (31) and a hydraulic cylinder (32); one end of the collecting shovel bottom plate (31) is hinged to the bottom of the shield body (11); the middle portion is connected to the shield body (11) via the hydraulic cylinder (32); the collecting shovel bottom plate (31) is opened and closed by the extension and retraction of the hydraulic cylinder (32).

10. The sweeper with adjustable brush height above the ground according to claim 1, characterized in that: Steel rulers (14) are provided on both sides of the shield body (11) for providing a reference for the height of the motor fixing seat (13) on both sides of the shield body (11).

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