Dust collector

Abstract

The invention provides a dust suction machine, and relates to the field of dust suction equipment matched with shot blasting machines, the dust suction machine comprises a main rack, a fan assembly, a dust suction box and an air collection chamber, the dust suction box and the air collection chamber are isolated from each other, an inner cavity of the dust suction box is communicated with a dust suction pipeline, a dust removal filter element is arranged in the dust suction box, and the dust removal filter element is provided with a dust cleaning device; the core part of the dust removal filter element is communicated with the air collection chamber; the air suction side of the fan assembly is communicated with the air collection chamber; the dust collection device is characterized in that a door sealing assembly is further arranged in the dust collection box and located on the lower side of the dust removal filter element, the door sealing assembly comprises a plurality of parallel baffles, the two ends of the baffles are rotationally connected with the side wall of the dust collection box through transmission shafts, and the baffles are connected with driving assemblies used for driving the baffles to rotate around the axes of the transmission shafts; the multiple baffles can be driven by the driving assembly to synchronously rotate to be in the two states that an inner cavity of the dust collection box is not communicated with the dust outlet or is communicated with the dust outlet. And the discharging of the dust collecting device is realized on the premise of not stopping the machine.

Description

Technical Field

[0001] The invention relates to the technical field of dust collection equipment, and in particular to a dust collector. Background Art

[0002] Pavement shot blasting machine is a common equipment in road and bridge construction, used for roughening concrete pavement or bridge. Since shot blasting machine will produce a lot of waste dust during operation, it is often used with a vacuum cleaner.

[0003] The existing vacuum cleaner mainly includes a fan assembly, an air collecting chamber, a dust collection box and a dust collecting device installed at the bottom of the dust collection box. A dust filter element for filtering dust is placed inside the dust collection box. The dust filter element is equipped with a cleaning device (such as pulse jet cleaning, mechanical vibration cleaning, etc.). At regular intervals, the cleaning device acts on the dust filter element to peel off the dust on the surface of the filter element and drop it into the dust collecting device.

[0004] In actual use of the vacuum cleaner, when the dust collecting device is filled with waste, it is necessary to first stop the vacuum cleaner and the working equipment connected to its input side, such as the shot blasting machine, and then start the shot blasting machine and the vacuum cleaner to collect the waste after the waste in the dust collecting device is dumped. In this working mode, the start-stop frequency of equipment such as the shot blasting machine and the vacuum cleaner is high, which firstly affects the service life of the machine, secondly affects the continuous operation of the shot blasting machine, and then affects its working efficiency, and thirdly the dust collection efficiency is low, which brings great inconvenience to the operator.

[0005] Therefore, there is an urgent need for a vacuum cleaner that can discharge the dust collecting device without stopping the machine. Summary of the invention

[0006] In view of the above problems existing in the prior art, the present invention provides a vacuum cleaner capable of collecting dust and discharging materials without stopping the machine.

[0007] The technical solution of the present invention to solve the above technical problems is as follows: a vacuum cleaner comprises a main frame, a fan assembly, and a dust suction box and an air collecting chamber isolated from each other arranged on the main frame, the inner cavity of the dust suction box is connected to the dust suction duct, a dust collection filter element is arranged inside the dust suction box, and the dust collection filter element is equipped with a dust cleaning device for removing dust and waste on the dust collection filter element; the core of the dust collection filter element is connected to the air collecting chamber, the suction side of the fan assembly is connected to the air collecting chamber, and the air outlet side of the fan assembly is connected to the air outlet; a dust outlet is arranged at the bottom of the dust suction box, and a dust collecting device is arranged at the lower side of the dust outlet, characterized in that a door sealing assembly is also arranged in the dust suction box and at the lower side of the dust collection filter element, and the door sealing assembly comprises a plurality of baffles arranged in parallel, and both ends of the baffles are rotatably connected to the side walls of the dust suction box through a transmission shaft, and the baffle is connected to a driving assembly for driving it to rotate around the axis of the transmission shaft;

[0008] Driven by the driving assembly, multiple baffles can rotate synchronously to present the following two different states:

[0009] State 1: The baffles rotate until the outer edges of the adjacent baffles are connected, so that the inner cavity of the dust collection box and the dust collecting device are not connected to each other;

[0010] State 2: The outer edges of adjacent baffles do not touch each other, so that the inner cavity of the dust box is connected to the dust collecting device.

[0011] Furthermore, the driving assembly includes a telescopic rod arranged on the outside of the dust box, one end of the telescopic rod is hinged to the outer wall of the dust box, the other end of the telescopic rod is hinged to a telescopic rod connecting plate, the telescopic rod connecting plate is connected to connecting rods corresponding to the baffles one by one, and multiple connecting rods are arranged in parallel, one end of the connecting rod is fixedly connected to the transmission shaft, and the other end of the connecting rod is hinged to the telescopic rod connecting plate.

[0012] Furthermore, the cross section of the baffle is arranged to be Z-shaped.

[0013] Furthermore, two side edges of the baffle are respectively provided with bending structures, and the two bending directions are opposite.

[0014] Furthermore, the inner wall of the dust box is provided with a side panel matched with the outer edge of the baffle.

[0015] Furthermore, the fan assembly is connected to the power assembly via a transmission member.

[0016] Furthermore, the cleaning device adopts a pulse jet cleaning device or a vibration cleaning device.

[0017] Furthermore, when a pulse-jet dust cleaning device is used, it includes a pulse-jet mechanism, one end of which is connected to an air storage tank, and the other end of which is connected to a spray pipe corresponding to a dust removal filter element.

[0018] Furthermore, the injection pipe is arranged in the air collecting chamber, and an injection port is opened in the injection pipe toward the core of the dust removal filter element.

[0019] Furthermore, a trumpet cover is provided in the air collecting chamber, and the trumpet cover is fixed at the connection port between the air collecting chamber and the core of the dust removal filter element and faces the injection port.

[0020] Furthermore, the dust removal filter element is hung on the injection pipe through a hook.

[0021] The beneficial effect of the present invention is that the present invention arranges a sealing door assembly at a specific position in the dust box and at the lower side of the dust filter element, which mainly includes a plurality of baffles arranged in parallel. The plurality of baffles can rotate synchronously under the drive of the driving assembly to realize two different states of blocking and conducting the dust outlet passage of the dust box, thereby realizing the discharge of the dust collecting device at the bottom of the dust box without stopping the machine, and the dust filter element above the sealing door assembly and in the dust box is not affected during the discharge. While improving the working efficiency of the whole machine, it can also avoid machine failures caused by frequent start and stop of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of a three-dimensional structure of an embodiment of the present invention;

[0023] Figure 2 is a schematic cross-sectional structural diagram of an embodiment of the present invention;

[0024] Figure 3 It is a partial perspective structural schematic diagram of an embodiment of the present invention;

[0025] Figure 4 yes Figure 2 The state change diagram;

[0026] Figure 5 yes Figure 2 A partial enlarged view of

[0027] Figure 6 yes Figure 4 A partial enlarged view of

[0028] In the figure: 1. main frame, 2. fan assembly, 3. dust suction box, 30. side panel, 4. air collecting chamber, 5. dust suction duct, 6. dust removal filter, 7. pulse spray mechanism, 8. air outlet, 9. dust outlet, 10. dust collecting device, 11. door sealing assembly, 12. transmission parts, 13. power assembly, 14. air storage tank, 15. injection pipe, 16. horn cover, 17. hook, 111. baffle, 1110. bend, 112. transmission shaft, 1120. connecting rod, 113. driving assembly, 1131. telescopic rod, 1132. telescopic rod connecting plate. DETAILED DESCRIPTION

[0029] The principles and features of the present invention are described below. The examples given are only used to explain the present invention but not to limit the scope of the present invention.

[0030] As attached Figure 1-3As shown, the vacuum cleaner of this embodiment includes a main frame 1, a dust box 3 is installed on the main frame 1, an air collecting chamber 4 is installed on the top of the dust box, the dust box 3 and the air collecting chamber 4 are separated by a partition, a fan assembly 2 is installed on the top of the air collecting chamber, and the fan assembly 2 is connected to the power assembly 13 through a transmission member 12 (a transmission belt is used in the figure); the inner cavity of the dust box 3 is connected to the dust collection pipe 5, and a dust filter element 6 is arranged inside the dust box 3, and the dust filter element 6 is equipped with a dust cleaning device for removing dust and waste on the dust filter element 6; the dust filter element The core of 6 is connected with the air collecting chamber 4 through a connecting port opened at the bottom of the air collecting chamber 4, the air suction side of the fan assembly 2 is connected with the air collecting chamber 4, and the air outlet side of the fan assembly 2 is connected to the air outlet 8; a dust outlet 9 is arranged at the bottom of the dust suction box 3, and a dust collecting device 10 is arranged at the lower side of the dust outlet 9 for collecting waste materials falling from the dust removal filter element 6; the dust collecting device 10 can specifically adopt a dust collecting hopper structure, and the bottom of the dust collecting hopper is sealed and connected to a dust collecting cloth bag or a dust collecting bag through a flange, or the dust collecting hopper is used in conjunction with a dust collecting cart sealed and connected thereto.

[0031] The process of using the vacuum cleaner of this embodiment in conjunction with a working device to perform dust removal is as follows, with a shot blasting machine being taken as an example of the working device.

[0032] When in use, the dust collection pipe 5 is connected to the shot blasting machine to receive the dust-containing gas generated by the shot blasting machine. The dust-containing gas enters the dust collection box 3 through the dust collection pipe 5. Under the action of the fan assembly 2, the dust-containing gas is filtered from the outside to the inside through the dust filter 6 and enters the air collecting chamber 4. Finally, the clean air after the waste dust is filtered out is discharged from the air outlet 8 on the fan assembly 2. When the amount of dust adsorbed on the surface of the dust filter 6 accumulates to a certain extent, or at intervals, the dust cleaning device is used to act on the dust filter 6, so that the waste dust adsorbed on the surface of the dust filter 6 falls into the dust collecting device 10 through the dust outlet 9 for collection. After the dust collecting device 10 is filled with waste, it is manually dumped.

[0033] The dust cleaning device of this embodiment adopts a pulse spray type dust cleaning device, which includes a pulse spray mechanism 7, which is a prior art, including an electromagnetic pulse valve and a pulse controller for controlling it. One end of the pulse spray mechanism 7 is connected to the air storage tank 14, and the other end is connected to the injection pipe 15 corresponding to the dust filter element 6. The injection pipe 15 is arranged in the air collecting chamber 4, and the injection pipe 15 is provided with an injection port toward the core of the dust filter element 6. When performing the dust cleaning operation, the pulse spray mechanism is used to spray the compressed air in the air storage tank 14 to the dust filter element 6 through the injection pipe 15, so that the waste dust adsorbed on the surface of the dust filter element 6 is peeled off. In addition, in other embodiments, prior art structures such as vibration dust cleaning devices can also be used, which will not be described one by one here.

[0034] In this embodiment, a sealing door assembly 11 is further provided in the dust collecting box 3 and located below the dust filter element 6, for controlling the conduction of the dust collecting passage from the dust collecting box 3 to the dust collecting device 10. Figure 2 As shown, the door sealing assembly 11 includes a plurality of baffles 111 arranged in parallel, both ends of the baffles 111 are rotatably connected to the side wall of the dust box 3 through a transmission shaft 112, and the baffles 111 are connected to a driving assembly 113 for driving the baffles 111 to rotate around the axis of the transmission shaft 112; the plurality of baffles 111 can be synchronously rotated under the drive of the driving assembly 113 to present the following two different states:

[0035] State 1 is the state where the dust collecting device 10 needs to be discharged. Figure 4 As shown, at this time, the baffles 111 rotate until the outer edges of the adjacent baffles 111 are connected, so that the inner cavity of the dust box 3 and the dust collecting device 10 are not connected to each other, that is, the inner cavity of the dust box 3 and the dust collecting device 10 are isolated, so that the discharge of the dust collecting device 10 can be completed without stopping the shot blasting machine and the dust collecting machine;

[0036] State 2 is a state in which the dust collecting device 10 does not need to be discharged during normal operation. Figure 2 As shown, at this time, the outer edges of adjacent baffles 111 do not contact each other, so that the inner cavity of the dust box 3 is connected to the dust collecting device 10.

[0037] In the above embodiment, the door sealing assembly 11 adopts a structure of multiple parallel baffles 111, and controls the synchronous rotation of the multiple baffles through the driving assembly 113 to realize whether the dust collecting passage is open or not. Compared with the prior art using an integral flip-plate type discharge valve or a pull-out plate type discharge valve, the overall structure occupies a smaller space in the dust box 3, and there is no need to make excessive heightening or other equipment modifications to the dust box 3, and installation is simpler.

[0038] In order to realize the synchronous rotation of the multiple baffles 111, the driving assembly 113 in the above embodiment includes a telescopic rod 1131 arranged outside the dust box 3. Figure 3 As shown, the telescopic rod 1131 can be specifically an electric push rod, one end of which is hinged to the outer wall of the dust box 3, and the other end of the telescopic rod 1131 is hinged to the hinge seat at the top of the telescopic rod connecting plate 1132. The telescopic rod connecting plate 1132 is connected to a connecting rod 1120 corresponding to the baffle 111 one by one. A plurality of connecting rods 1120 are arranged in parallel, one end of the connecting rod 1120 is fixedly connected to the transmission shaft 112, and the other end of the connecting rod 1120 is hinged to the bottom of the telescopic rod connecting plate 1132. Under normal working conditions, the door sealing assembly 11 is as shown in FIG. Figure 2 As shown, all baffles 111 are inclined, the inner cavity of the dust box 3 is connected to the dust collecting device 10, that is, the dust outlet channel is unobstructed, and the waste dust on the dust filter element falls into the dust collecting device 10 after pulse cleaning; when it is necessary to clean the waste in the dust collecting device, the telescopic end of the telescopic rod 1131 is controlled to extend, driving the telescopic rod connecting plate 1132 to move forward, and each connecting rod 1120 rotates accordingly, and drives the transmission shaft 112 to rotate around its own axis along Figure 2 Turn clockwise as shown until Figure 4In the state shown, the baffle 111 rotates until the outer edges of the adjacent baffles 111 are connected to form a blocking structure, so that the inner cavity of the dust box 3 and the dust collecting device 10 are not connected to each other, that is, the inner cavity of the dust box 3 and the dust collecting device 10 are isolated. At this time, the discharge of the dust collecting device 10 can be operated without stopping the shot blasting machine and the dust collector, and the baffle 111 can be reset after the discharge is completed.

[0039] On the basis of the above-mentioned embodiments, in a preferred embodiment of the present invention, the cross section of the baffle 111 is set to be Z-shaped, and its function is to make the two side edges of the baffle 111 have a certain height difference when the baffle 111 rotates to a horizontal state, so that the outer edges of adjacent baffles 111 overlap to a certain extent, thereby ensuring the sealing of the connection between adjacent baffles 111. In addition, the inner wall of the dust box 3 is also provided with a side plate 30 adapted to the outer edge of the baffle 111. After the baffle 111 rotates to a horizontal state, the outer edge of the baffle 111 close to the inner wall of the dust box 3 realizes the sealing between the baffle 111 and the inner wall of the dust box 3 through contact with the side plate 30. A small gap is left between the two end sides of the baffle 111 and the inner wall of the dust box 3, so that the baffle 111 can rotate while ensuring the sealing. Combined with the sealing of the connection between adjacent baffles 111, the sealing effect of the door sealing assembly 11 is ensured.

[0040] On the basis of the above embodiment, more preferably, the two side edges of the baffle 111 are respectively provided with bends 1110, and the two bends 1110 are in opposite directions. Figure 2 As shown, when the baffle 111 rotates to a horizontal state, the outer edge of the baffle 111 stacked on top is bent upward, and the outer edge of the baffle 111 stacked below is bent downward. The purpose of the design of the bending structure is to increase the strength of the side edge of the baffle 111, ensure the straightness of the side edge of the baffle 111, and further ensure the bite seal at the joint of adjacent baffles 111.

[0041] On the basis of the above-mentioned embodiment, in a preferred embodiment of the present invention, an inverted cone-shaped trumpet cover 16 is provided in the air collecting chamber 4, and the trumpet cover 16 is fixed at the connecting port between the air collecting chamber 4 and the core of the dust filter element 6 and faces the injection port, and is used to receive the pulse gas ejected from the injection port so that the pulse gas acts on the core of the dust filter element 6.

[0042] On the basis of the above embodiment, in a preferred embodiment of the present invention, the dust filter 6 is hung on the injection pipe 15 through a hook 17, and the hook 17 is fixed to the dust filter 6 in the dust box 3 and is hung upward through the hollow part of the horn cover 16 and fixed on the injection pipe 15. The injection pipe 15 serves as both a conveying pipe for the pulse gas and a hanging rod for the dust filter 6, and the overall structural space design is more reasonable, and the dust filter 6 is more simply fixed.

Claims

1. A vacuum cleaner, comprising a main frame (1), a fan assembly (2), and a dust box (3) and an air collecting chamber (4) which are isolated from each other and are arranged on the main frame (1); the inner cavity of the dust box (3) is connected to a dust collection pipe (5); a dust filter element (6) is arranged inside the dust box (3); the dust filter element (6) is provided with a dust cleaning device for removing dust and waste on the dust filter element (6); the core of the dust filter element (6) is connected to the air collecting chamber (4); the air suction side of the fan assembly (2) is connected to the air collecting chamber (4); the air outlet side of the fan assembly (2) is connected to an air outlet (8); a dust outlet (9) is arranged at the bottom of the dust box (3); a dust collecting device (10) is arranged at the lower side of the dust outlet (9), characterized in that: A door sealing assembly (11) is also provided in the dust collecting box (3) and located below the dust filter element (6). The door sealing assembly (11) comprises a plurality of baffles (111) arranged in parallel. Both ends of the baffles (111) are rotatably connected to the side walls of the dust collecting box (3) via a transmission shaft (112). The baffles (111) are connected to a driving assembly (113) for driving them to rotate around the axis of the transmission shaft (112). The plurality of baffles (111) can be synchronously rotated under the drive of the driving assembly (113) to present the following two different states: State 1: the baffles (111) rotate until the outer edges of adjacent baffles (111) are in contact, so that the inner cavity of the dust collection box (3) and the dust collecting device (10) are not connected to each other; State 2: The outer edges of adjacent baffles (111) do not contact each other, so that the inner cavity of the dust collection box (3) is connected to the dust collecting device (10).

2. The vacuum cleaner according to claim 1, characterized in that: The driving assembly (113) comprises a telescopic rod (1131) arranged outside the dust collection box (3); one end of the telescopic rod (1131) is hinged to the outer wall of the dust collection box (3); the other end of the telescopic rod (1131) is hinged to a telescopic rod connecting plate (1132); the telescopic rod connecting plate (1132) is connected to connecting rods (1120) corresponding to the baffles (111) one by one; a plurality of connecting rods (1120) are arranged in parallel; one end of the connecting rod (1120) is fixedly connected to the transmission shaft (112); and the other end of the connecting rod (1120) is hinged to the telescopic rod connecting plate (1132).

3. The vacuum cleaner according to claim 1 or 2, characterized in that: The cross section of the baffle (111) is arranged to be Z-shaped.

4. The vacuum cleaner according to claim 3, characterized in that: The two side edges of the baffle (111) are respectively provided with bends (1110), and the two bends (1110) are in opposite directions.

5. The vacuum cleaner according to claim 1 or 2, characterized in that: The inner wall of the dust collection box (3) is provided with a side panel (30) adapted to the outer edge of the baffle (111).

6. The vacuum cleaner according to claim 1, characterized in that: The fan assembly (2) is connected to the power assembly (13) via a transmission member (12).

7. The vacuum cleaner according to claim 1, characterized in that: The dust cleaning device adopts a pulse spray type dust cleaning device or a vibration type dust cleaning device.

8. The vacuum cleaner according to claim 7, characterized in that: The pulse jet cleaning device comprises a pulse jet mechanism (7), one end of the pulse jet mechanism (7) is connected to an air storage tank (14), and the other end is connected to a jet pipe (15) corresponding to a dust removal filter element (6); the jet pipe (15) is arranged in an air collecting chamber (4), and a jet port is opened in the jet pipe (15) toward the core of the dust removal filter element (6).

9. The vacuum cleaner according to claim 8, characterized in that: A horn cover (16) is provided in the air collecting chamber (4), and the horn cover (16) is fixed at the connection port between the air collecting chamber (4) and the core of the dust removal filter element (6) and faces the injection port.

10. The vacuum cleaner according to claim 8, characterized in that: The dust removal filter element (6) is hung on the spray pipe (15) via a hook (17).

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