Dust falling device

Abstract

The invention discloses the technical field of excavator dust falling, and particularly relates to a dust falling device which comprises an excavator which comprises a main body component and a mechanical arm. The water storage mechanism is arranged at the end part of the main body part and comprises a first water storage tank and a water pump; the spraying mechanism is arranged on the side face of the mechanical arm and comprises a second water storage tank, a connecting pipe, a water spraying component and a water pre-discharging component, the water pre-discharging component is arranged in the second water storage tank, and the second water storage tank is connected with the first water storage tank through the connecting pipe; when the excavator is started, the water outlet state of the pre-water-outlet component is controlled through the vibration force of the mechanical arm, a second water storage tank is arranged at a second hard pipe, and when the excavator is just started, the pre-water-outlet component can be driven to vibrate up and down through the vibration force of the mechanical arm, so that water in the second water storage tank is sprayed out through a water spraying component; therefore, when the excavator starts to work, water mist can be sprayed immediately, the response time is shortened, and the dust falling effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of dust reduction for excavators, and particularly to a dust reduction device. Background Art

[0002] In the coal yard of a thermal power plant, dust is generated during the operation of an excavator for shoveling coal. Currently, some traditional dust reduction methods are basically used, but these methods have some significant problems and limitations in practical applications. Specifically, traditional dust reduction technologies mainly include arranging water pipes and atomizing nozzles around the construction area, or using equipment such as fog guns and water trucks for spraying. Although these methods can suppress dust flying to a certain extent, they also bring some challenges.

[0003] Firstly, traditional dust reduction equipment often requires a large working surface for installation, which is particularly problematic in construction sites with limited space. Secondly, when the excavator moves or the construction operation changes, these devices need to be frequently rearranged, which not only consumes time and labor but also may lead to a reduction in construction efficiency. In addition, the response time of traditional dust reduction equipment is relatively long, and it cannot start dust reduction immediately when the excavator starts working, resulting in poor dust control effect at the initial stage of construction. These problems need to be solved urgently. Summary of the Invention

[0004] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the problem that the response time of the above-mentioned existing traditional dust reduction equipment is relatively long and it cannot start dust reduction immediately when the excavator starts working, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a dust reduction device.

[0007] To solve the above technical problems, the present invention provides the following technical solution: an excavator, which includes a main body component and a robotic arm; a water storage mechanism, arranged at the end of the main body component, which includes a first water storage tank and a water pump; a spraying mechanism, arranged on the side of the robotic arm, which includes a second water storage tank, a connecting pipe, a water spraying component, and a pre-outlet water component. The pre-outlet water component is arranged in the second water storage tank. The second water storage tank is connected to the first water storage tank through the connecting pipe. When the excavator starts, the water outlet state of the pre-outlet water component is controlled by the vibration force of the robotic arm.

[0008] As a preferred embodiment of the dust reduction device of the present invention, the following applies: The water spraying component includes a first spray head and a second spray head. The first spray head and the second spray head are respectively arranged on both sides of the robotic arm. The spraying angle of the first spray head with respect to the robotic arm is 0° to 30° and the first spray head faces the ground. The spraying angle of the second spray head with respect to the robotic arm is 80° to 100° and the second spray head faces away from the main body component.

[0009] As a preferred embodiment of the dust reduction device of the present invention, the following applies: The pre-outlet water component includes a movable plate, a vibration spring, and a counterweight. The movable plate is in contact with the inner wall of the second water storage tank. One end of the vibration spring is fixedly connected to the bottom end of the movable plate, and the other end of the vibration spring is fixedly connected to the bottom end of the second water storage tank. The counterweight is connected to the bottom end of the movable plate.

[0010] As a preferred embodiment of the dust reduction device of the present invention, the following applies: The connecting pipe is divided into a first flexible pipe and a second rigid pipe. One end of the first flexible pipe is connected to the first water storage tank, and the other end of the first flexible pipe is connected to the second rigid pipe. The first flexible pipe is fixed to the robotic arm and the main body component through a fixed valve. The second rigid pipe is arranged at the end of the second water storage tank.

[0011] As a preferred embodiment of the dust reduction device of the present invention, the following applies: A plurality of first through holes are provided at the bottom end of the second rigid pipe, and a plurality of second through holes are provided at the end of the second water storage tank. The first through holes communicate with the second through holes.

[0012] As a preferred embodiment of the dust reduction device of the present invention, the following applies: A dust-proof cover and a fixing member are further provided at the end of the water spraying component. The dust-proof cover is connected to the water spraying component through the fixing member. The dust-proof cover is used to reduce blockage of the water spraying component.

[0013] As a preferred embodiment of the dust reduction device of the present invention, the following applies: The fixing member includes a fixing block and a tension spring. The fixing block is connected to the side wall of the water spraying component. A receiving groove is provided on the fixing block. The tension spring is arranged in the receiving groove. One end of the tension spring is fixedly connected to the receiving groove, and the other end of the tension spring is fixedly connected to the dust-proof cover.

[0014] As a preferred embodiment of the dust reduction device of the present invention, the following applies: The side wall of the first water storage tank is connected to the water pump. An inlet is provided at the end of the first water storage tank. Two groups of outlets are provided on the side of the first water storage tank. The end of the first flexible pipe is connected to the outlet tank. The first flexible pipe can be telescopic.

[0015] As a preferred embodiment of the dust reduction device of the present invention, the following is provided: multiple groups of water spraying holes are provided on the dust-proof cover, the water spraying holes of the dust-proof cover are staggered from the water spraying holes of the water outlet component, the inner diameter of the dust-proof cover is slightly larger than the outer diameter of the water outlet component, and a water outlet is provided at the bottom end of the dust-proof cover.

[0016] As a preferred embodiment of the dust reduction device of the present invention, the following is provided: the movable plate divides the inner cavity of the second water storage tank into two parts, the end of the movable plate is the water storage part, the bottom end of the movable plate is the movable part, and the movable plate and the side wall of the second water storage tank are in a sealed state.

[0017] The beneficial effects of the present invention: In the present invention, the water spraying device is arranged on both sides of the robotic arm, reducing the working surface required by traditional dust reduction equipment. Moreover, nozzles at different angles are arranged on both sides of the robotic arm, which can suppress dust from the source following the excavation work of the robotic arm, achieving precise dust suppression.

[0018] By arranging a second water storage tank at the second hard pipe, when the excavator is just started, the pre-water outlet component can be driven to vibrate up and down by the vibration force of the robotic arm, so that the water in the second water storage tank is sprayed out through the water spraying component. As a result, when the excavator starts working, it can immediately start spraying water mist, reducing the response time and improving the dust reduction effect. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0020] Figure 1 It is a schematic diagram of the overall structure of the dust reduction device of the present invention.

[0021] Figure 2 It is a schematic diagram of the water spraying component of the dust reduction device of the present invention.

[0022] Figure 3 It is a schematic diagram of the spraying structure of the dust reduction device of the present invention.

[0023] Figure 4 It is a schematic diagram of the connection of the fixing parts of the dust reduction device of the present invention.

[0024] Figure 5 It is a schematic diagram of the structure of the pre-water outlet component of the dust reduction device of the present invention.

[0025] In the figure: 100, an excavator; 101, a main body component; 101a, a robotic arm; 200, a water storage mechanism; 201, a first water storage tank; 202, a water pump; 300, a spraying mechanism; 301, a second water storage tank; 302, a connecting pipe; 302a, a first flexible hose; 302b, a second rigid pipe; 303, a water spraying component; 303a, a first spray head; 303b, a second spray head; 303c, a dust-proof cover; 303d, a fixing member; 303d-1, a fixing block; 303d-2, a tension spring; 304, a pre-water outlet component; 304a, a movable plate; 304b, a vibration spring; 304c, a counterweight. Detailed implementation manners

[0026] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following provides a detailed description of the specific implementation manners of the present invention in conjunction with the accompanying drawings of the specification.

[0027] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0028] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0029] Furthermore, the present invention is described in detail in conjunction with schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0030] Embodiment 1, referring to Figures 1 to 2 , which is the first embodiment of the present invention, provides a dust reduction device, including an excavator 100, which includes a main body component 101 and a robotic arm 101a; a water storage mechanism 200, arranged at the end of the main body component 101, which includes a first water storage tank 201 and a water pump 202; a spraying mechanism 300, arranged on the side of the robotic arm 101a, including a second water storage tank 301, a connecting pipe 302, a water spraying component 303, and a pre-water outlet component 304. The pre-water outlet component 304 is arranged in the second water storage tank 301. The second water storage tank 301 is connected to the first water storage tank 201 through the connecting pipe 302. When the excavator 100 starts, the water outlet state of the pre-water outlet component 304 is controlled by the vibration force of the robotic arm 101a.

[0031] Specifically, the connecting pipe 302 is divided into a first flexible hose 302a and a second rigid pipe 302b. One end of the first flexible hose 302a is connected to the first water storage tank 201, and the other end of the first flexible hose 302a is connected to the second rigid pipe 302b. The first flexible hose 302a is fixed to the robotic arm 101a and the main body component 101 through a fixed valve. The second rigid pipe 302b is arranged at the end of the second water storage tank 301. It should be noted that a one-way valve is provided at the connection between the first flexible hose 302a and the second rigid pipe 302b, so that the water flow can only flow from the first flexible hose 302a to the second rigid pipe 302b, and cannot flow from the second rigid pipe 302b to the first flexible hose 302a. The purpose of this setting is that when the excavator 100 just starts to perform excavation work, the pre-water outlet component 304 squeezes the water inside the second water storage tank 301 into the second rigid pipe 302b. At this time, the water in the second rigid pipe 302b can only be sprayed outwards by the spraying component 303 and cannot flow into the first flexible hose 302a.

[0032] Furthermore, a plurality of first through holes are opened at the bottom end of the second rigid pipe 302b, and a plurality of second through holes are opened at the end of the second water storage tank 301. The first through holes are communicated with the second through holes.

[0033] Example 2, referring to Figures 2 to 4 In this embodiment, which is different from the first embodiment, the spraying component 303 includes a first spray head 303a and a second spray head 303b. The first spray head 303a and the second spray head 303b are respectively arranged on both sides of the robotic arm 101a. The spraying angle of the first spray head 303a with respect to the robotic arm 101a is 0° to 30° and the first spray head 303a faces the ground direction. The spraying angle of the second spray head 303b with respect to the robotic arm 101a is 80° to 100° and the second spray head 303b faces away from the main body component 101.

[0034] It should be noted that the spraying mechanism 300 is equipped with two spray heads - the first spray head 303a and the second spray head 303b, which are respectively installed on both sides of the robotic arm 101a. The angle of the first spray head 303a is set to be 0° to 30° with respect to the robotic arm 101a and faces the ground direction, so as to effectively control the dust generated under the robotic arm 101a. The angle of the second spray head 303b is set to be 80° to 100° with respect to the robotic arm 101a and faces away from the main body component 101, so as to control the dust at a farther distance. These two spray heads automatically adjust the spraying direction along with the movement of the robotic arm 101a, ensuring effective spraying at the source of the dust;

[0035] Compared with the relatively common dust removal methods in the prior art, including dust removal at the far end of the propagation path and in the powder

[0036] Dust generation source, i.e., proximal dust removal. Among them, distal dust removal in the propagation path usually involves arranging water pipes and atomizing nozzles on the construction fence, or using fog guns and water trucks to spray the construction area. Moreover, in some construction sites, water is sprayed and sprinkled within the construction site to wet the ground of the construction site to inhibit dust flying. However, in traditional dust reduction methods such as fog guns and water trucks, there are disadvantages such as the need to prepare a large number of dust reduction devices, which increases costs, and it is rather cumbersome for the dust reduction devices to follow up in a timely manner when the excavator 100 moves, requiring a large amount of manpower and material resources. In addition, the dust reduction devices require a certain working surface, and it is more difficult to install and move the dust reduction devices during construction in a small construction site, and there may even be a situation where they cannot be installed. In our invention, the water spraying device is arranged on both sides of the robotic arm 101a, reducing the working surface required by traditional dust reduction devices. Moreover, nozzles at different angles are arranged on both sides of the robotic arm 101a, which can suppress dust from the source following the excavation work of the robotic arm 101a, achieving precise dust suppression.

[0037] It should also be noted that due to the long distance from the first water storage tank 201 to the water spraying component 303, the water spraying response time is long, resulting in the inability to spray water in a timely manner when the robotic arm 101a starts excavation work. The function of arranging the second water storage tank 301 and the pre-water outlet component 304 on both sides of the robotic arm 101a is that when the robotic arm 101a starts working, the pre-water outlet component 304 can, according to the vibration force during the excavation of the robotic arm 101a, through the movable plate 304a and the counterweight 304c, under the action of the vibration spring 304b and the vibration force, squeeze the water at the end of the movable plate 304a from the second water outlet hole through the first water outlet hole into the second rigid pipe 302b and spray it out along the water spraying component 303, so as to achieve dust removal work when the robotic arm 101a starts to start, reduce the response time, and make the dust suppression effect better.

[0038] Specifically, the pre-water outlet component 304 includes a movable plate 304a, a vibration spring 304b, and a counterweight 304c. The movable plate 304a is in close contact with the inner wall of the second water storage tank 301. One end of the vibration spring 304b is fixedly connected to the bottom end of the movable plate 304a, and the other end of the vibration spring 304b is fixedly connected to the bottom end of the second water storage tank 301. The counterweight 304c is connected to the bottom end of the movable plate 304a.

[0039] Furthermore, the movable plate 304a divides the inner cavity of the second water storage tank 301 into two parts. The end of the movable plate 304a is the water storage part, the bottom end of the movable plate 304a is the movable part, and the movable plate 304a and the side wall of the second water storage tank 301 are in a sealed state.

[0040] All other structures are the same as those in Embodiment 1.

[0041] Embodiment 3, refer to Figures 1 to 5, what is different from the above embodiments in this embodiment is that a dust cover 303c and a fixing member 303d are further provided at the end of the water spraying member 303. The dust cover 303c is connected to the water spraying member 303 through the fixing member 303d, and the dust cover 303c is used to reduce the blockage of the water spraying member 303.

[0042] Specifically, the fixing member 303d includes a fixing block 303d-1 and a tension spring 303d-2. The fixing block 303d-1 is connected to the side wall of the water spraying member 303. A receiving groove is formed in the fixing block 303d-1. The tension spring 303d-2 is disposed in the receiving groove. One end of the tension spring 303d-2 is fixedly connected to the receiving groove, and the other end of the tension spring 303d-2 is fixedly connected to the dust cover 303c.

[0043] Among them, the side wall of the first water storage tank 201 is connected to the water pump 202. An inlet is provided at the end of the first water storage tank 201. Two groups of water outlets are provided on the side of the first water storage tank 201. The end of the first hose 302a is connected to the water outlet. The first hose 302a can be telescopic to adapt to the movement angle of the robotic arm 101a.

[0044] Furthermore, a plurality of groups of water spraying holes are formed in the dust cover 303c. The water spraying holes of the dust cover 303c are staggered from the water spraying holes of the water outlet member. The inner diameter of the dust cover 303c is slightly larger than the outer diameter of the water outlet member. A water outlet is provided at the bottom end of the dust cover 303c;

[0045] It should be noted that the dust cover 303c is connected to the water outlet component through the fixing member 303d. The fixing member 303d includes a fixing block 303d-1 and a tension spring 303d-2. The fixing block 303d-1 is connected to the side wall of the water outlet component. A receiving groove is formed on the fixing block 303d-1, and the tension spring 303d-2 is arranged in this receiving groove. One end of the tension spring 303d-2 is fixedly connected to the receiving groove, and the other end is fixedly connected to the dust cover 303c. When water is sprayed out through the water outlet component, the impact force of the water will push the dust cover 303c outwards, so that the dust cover 303c no longer fits with the water outlet component. Since multiple groups of water spraying holes on the dust cover 303c are staggered from the water spraying holes of the water outlet component, and there is a gap between the inner wall of the dust cover 303c and the outer wall of the water outlet component at this time, the liquid can flow out from the water outlet component through the dust cover 303c; when the water outlet component stops discharging water, the dust cover 303c returns to its initial position under the action of the tension spring 303d-2. At this time, the inner wall of the dust cover 303c fits with the outer wall of the water outlet component. Such a design helps to prevent dust or other impurities from entering the water spraying holes, thereby reducing the risk of blockage. And a water outlet is provided at the bottom end of the dust cover 303c, so that the excess water between the dust cover 303c and the water outlet component can flow out through the water outlet. The inner diameter of the dust cover 303c is slightly larger than the outer diameter of the water outlet component, which enables the dust cover 303c to flexibly cover the water outlet component.

[0046] The remaining structures are all the same as those in Embodiment 2.

[0047] Operation process: First, install the first water storage tank 201 at the end of the main body component 101 of the excavator 100 and ensure that the first water storage tank 201 is stable. Then, connect the water pump 202 to the first water storage tank 201. Next, install the second water storage tank 301 on the side of the robotic arm 101a and connect it to the first water storage tank 201 through the connecting pipe 302. The connecting pipe 302 is divided into a first flexible pipe 302a and a second rigid pipe 302b. One end of the first flexible pipe 302a is connected to the first water storage tank 201, and the other end is connected to the second rigid pipe 302b and fixed to the robotic arm 101a and the main body component 101 through fixing clips. The second rigid pipe 302b is arranged at the end of the second water storage tank 301 and is fixed in position. In addition, a plurality of first through holes and second through holes are respectively formed at the bottom end of the second rigid pipe 302b and the end of the second water storage tank 301, and it is ensured that these through holes are communicated with each other; Next, install the spraying mechanism 300. The spraying mechanism 300 includes a first spray head 303a and a second spray head 303b. These two spray heads are respectively arranged on both sides of the robotic arm 101a, and the angles of the first spray head 303a and the second spray head 303b are different. The first spray head 303a is substantially parallel to the robotic arm 101a and the water outlet direction is towards the ground direction, and the second spray head 303b is substantially perpendicular to the robotic arm 101a and the water outlet direction is away from the main body component 101 of the excavator 100;

[0048] When the excavator 100 starts, the robotic arm 101a begins to work and generates vibrations. These vibrations are transmitted to the pre-outlet component 304 located in the second water storage tank 301. The movable plate 304a and the counterweight 304c at its bottom end in the pre-outlet component 304 vibrate up and down under the action of the vibration spring, causing the water in the water storage part at the end of the movable plate 304a to be oscillated and squeezed along the second rigid tube 302b through the movable part at the bottom end of the movable plate 304a and flow to the spraying component 303 and be ejected. This water is sprayed out in the form of water mist by the spraying component 303 to cover the dust-generating area, thus achieving the effect of dust reduction.

[0049] When the water is ejected through the outlet component, the impact force of the water will push the dust-proof cover 303c outwards, so that the dust-proof cover 303c no longer fits with the outlet component. Since the multiple groups of spraying holes on the dust-proof cover 303c are staggered from the spraying holes of the outlet component, and there is a gap between the inner wall of the dust-proof cover 303c and the outer wall of the outlet component at this time, the liquid can flow out from the outlet component through the dust-proof cover 303c; when the outlet component stops discharging water, the dust-proof cover 303c returns to its initial position under the action of the tension spring 303d-2. At this time, the inner wall of the dust-proof cover 303c fits with the outer wall of the outlet component. Such a design helps to prevent dust or other impurities from entering the spraying holes, thus reducing the risk of blockage.

[0050] It is important to note that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible on the premise of substantially not deviating from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various components, and parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, changes in color, orientation, etc.). For example, an element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature, number or position of discrete elements can be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the recited function in this disclosure, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangements of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0051] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention or those features that are not relevant to the implementation of the present invention).

[0052] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts would be a routine task of design, fabrication, and production.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A dust suppression device, characterized in that: include, An excavator (100) comprising a main body (101) and a mechanical arm (101a); A water storage mechanism (200) is arranged at the end of the main body component (101), and comprises a first water storage tank (201) and a water pump (202); The spray mechanism (300) is arranged on the side of the mechanical arm (101a), and comprises a second water storage tank (301), a connecting pipe (302), a water spray component (303) and a pre-water discharge component (304). The pre-water discharge component (304) is arranged in the second water storage tank (301). The second water storage tank (301) is connected to the first water storage tank (201) through the connecting pipe (302). When the excavator (100) is started, the water discharge state of the pre-water discharge component (304) is controlled by the vibration force of the mechanical arm (101a).

2. The dust suppression device according to claim 1, characterized in that: The water spray component (303) comprises a first spray head (303a) and a second spray head (303b), wherein the first spray head (303a) and the second spray head (303b) are respectively arranged on both sides of the mechanical arm (101a), the spray angle of the first spray head (303a) and the mechanical arm (101a) are 0° to 30°, and the first spray head (303a) is directed toward the ground, the spray angle of the second spray head (303b) and the mechanical arm (101a) are 80° to 100°, and the second spray head (303b) is directed away from the main body component (101).

3. The dust suppression device according to claim 2, characterized in that: The pre-water outlet component (304) comprises a movable plate (304a), a vibration spring (304b) and a counterweight (304c); the movable plate (304a) is in contact with the inner wall of the second water storage tank (301); one end of the vibration spring (304b) is fixedly connected to the bottom end of the movable plate (304a); the other end of the vibration spring (304b) is fixedly connected to the bottom end of the second water storage tank (301); and the counterweight (304c) is connected to the bottom end of the movable plate (304a).

4. The dust suppression device according to claim 3, characterized in that: The connecting pipe (302) is divided into a first hose (302a) and a second hard pipe (302b); one end of the first hose (302a) is connected to the first water storage tank (201); the other end of the first hose (302a) is connected to the second hard pipe (302b); the first hose (302a) is fixed to the mechanical arm (101a) and the main body component (101) via a fixing buckle; the second hard pipe (302b) is arranged at the end of the second water storage tank (301).

5. The dust suppression device according to claim 4, characterized in that: A plurality of first through holes are formed at the bottom end of the second hard tube (302b), a plurality of second through holes are formed at the end of the second water storage tank (301), and the first through holes are connected to the second through holes.

6. The dust suppression device according to claim 5, characterized in that: The end of the water spray component (303) is also provided with a dust cover (303c) and a fixing member (303d); the dust cover (303c) is connected to the water spray component (303) via the fixing member (303d); and the dust cover (303c) is used to reduce clogging of the water spray component (303).

7. The dust suppression device according to claim 6, characterized in that: The fixing member (303d) comprises a fixing block (303d-1) and a tension spring (303d-2); the fixing block (303d-1) is connected to the side wall of the water spray component (303); a receiving groove is provided on the fixing block (303d-1); the tension spring (303d-2) is arranged in the receiving groove; one end of the tension spring (303d-2) is fixedly connected to the receiving groove; and the other end of the tension spring (303d-2) is fixedly connected to the dust cover (303c).

8. The dust suppression device according to claim 7, characterized in that: The side wall of the first water storage tank (201) is connected to the water pump (202); a water inlet is provided at the end of the first water storage tank (201); two groups of water outlets are provided on the side of the first water storage tank (201); the end of the first hose (302a) is connected to the water outlet box; and the first hose (302a) is retractable.

9. The dust suppression device according to claim 8, characterized in that: The dust cover (303c) is provided with a plurality of water spray holes, the water spray holes of the dust cover (303c) are staggered with the water spray holes of the water outlet component, the inner diameter of the dust cover (303c) is slightly larger than the outer diameter of the water outlet component, and a water outlet is provided at the bottom end of the dust cover (303c).

10. The dust suppression device according to claim 9, characterized in that: The movable plate (304a) divides the inner cavity of the second water storage tank (301) into two parts, the end of the movable plate (304a) is the water storage part, the bottom of the movable plate (304a) is the movable part, and the movable plate (304a) and the side wall of the second water storage tank (301) are in a sealed state.

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