Dust collector

Abstract

The utility model provides a dust collector, which relates to the field of dust collection equipment matched with shot blasting machines and comprises a main frame, a fan component, a dust collection box and an air collection chamber, the dust collection box and the air collection chamber are isolated from each other, an inner cavity of the dust collection box is communicated with a dust collection pipeline, and a dust removal filter element is arranged in the dust collection box and 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] This utility model relates to the field of vacuum equipment technology, specifically to a vacuum cleaner. Background Technology

[0002] Shot blasting machines are commonly used equipment in road and bridge construction to roughen concrete pavements or bridges. Because shot blasting machines generate a large amount of dust during operation, they are often used in conjunction with dust collectors.

[0003] Existing vacuum cleaners mainly include a fan assembly, an air collection chamber, a dust collection box, and a dust collection device installed at the bottom of the dust collection box. Inside the dust collection box is a dust filter element for filtering dust. The dust filter element is equipped with a dust cleaning device (such as pulse jet cleaning, mechanical vibration cleaning, etc.). Every once in a while, the dust cleaning device acts on the dust filter element, peeling off the dust on the surface of the filter element and letting it fall into the dust collection device.

[0004] In actual use, when the dust collection device of a vacuum cleaner is full of waste, it is necessary to first stop the vacuum cleaner and the connected working equipment, such as the shot blasting machine, and wait for the waste in the dust collection device to be emptied before restarting the shot blasting machine and vacuum cleaner to collect the waste. This working method results in a high frequency of start-stop operations for the shot blasting machine and vacuum cleaner, which affects the machine's lifespan, disrupts the continuous operation of the shot blasting machine, thus impacting its work efficiency, and leads to low dust collection efficiency; all of which cause significant inconvenience to the operator.

[0005] Therefore, there is an urgent need for a dust collector that can discharge material from the dust collection device without shutting down the machine. Utility Model Content

[0006] This invention addresses the aforementioned problems in the prior art by providing a dust collector capable of collecting and discharging dust without shutting down.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A vacuum cleaner includes a main frame, a fan assembly, and a dust collection box and an air collection chamber that are isolated from each other and set on the main frame. The inner cavity of the dust collection box is connected to a dust collection pipe. A dust removal filter is set inside the dust collection box. The dust removal filter is equipped with a dust removal device for removing dust and waste from the dust removal filter. The core of the dust removal filter is connected to the air collection chamber. The suction side of the fan assembly is connected to the air collection chamber. The exhaust side of the fan assembly is connected to the exhaust port. A dust outlet is set at the bottom of the dust collection box. A dust collection device is set below the dust outlet. The vacuum cleaner is characterized in that a sealing assembly is also set inside the dust collection box and below the dust removal filter. The sealing assembly includes a plurality of baffles arranged in parallel. The two ends of the baffles are rotatably connected to the side wall of the vacuum cleaner via a drive shaft. The baffles are connected to a drive assembly for driving them to rotate around the axis of the drive shaft.

[0008] Multiple baffles can rotate synchronously under the drive of the drive component to present the following two different states.

[0009] State 1: The baffles rotate until the outer edges of adjacent baffles meet, so that the inner cavity of the dust collection box and the dust collection device are no longer connected.

[0010] State 2: The outer edges of adjacent baffles do not contact each other, allowing the inner cavity of the dust collection box to be connected to the dust collection device.

[0011] Furthermore, the drive assembly includes a telescopic rod disposed on the outside of the dust collection box. One end of the telescopic rod is hinged to the outer wall of the dust collection box, and 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 that correspond one-to-one with the baffles. Multiple connecting rods are arranged in parallel. One end of the connecting rod is fixedly connected to the drive 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 configured in a Z-shape.

[0013] Furthermore, the baffle has bending structures on both sides of its edge, and the two bending directions are opposite.

[0014] Furthermore, the inner wall of the dust collection box is provided with a side plate that is adapted to the outer edge of the baffle.

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

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

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

[0018] Furthermore, the injection pipe is installed in the air collection chamber, and the injection pipe has an injection port facing the core of the dust removal filter element.

[0019] Furthermore, a horn cover is provided in the air collection chamber, which is fixed at the connection between the air collection chamber and the dust removal filter core and faces the injection port.

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

[0021] The beneficial effects of this utility model are as follows: This utility model uses a sealing assembly located in a specific position inside the dust collection box, below the dust removal filter element. This assembly mainly includes multiple baffles arranged in parallel. These baffles can rotate synchronously under the drive of the drive assembly, achieving two different states: blocking and opening the dust outlet passage of the dust collection box. This allows for the discharge of material to the dust collection device at the bottom of the dust collection box without stopping the machine. Furthermore, the discharge does not affect the operation of the dust removal filter element above the sealing assembly and inside the dust collection box. This improves the overall working efficiency of the machine and avoids machine malfunctions caused by frequent start-stop cycles. Attached Figure Description

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

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

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

[0025] Figure 4 yes Figure 2 State change diagram;

[0026] Figure 5 yes Figure 2 A magnified view of a portion of the image;

[0027] Figure 6 yes Figure 4 A magnified view of a portion of the image;

[0028] In the diagram: 1. Main frame, 2. Fan assembly, 3. Dust collection box, 30. Side panel, 4. Air collection chamber, 5. Dust collection pipe, 6. Dust filter element, 7. Pulse jet blowing mechanism, 8. Air outlet, 9. Dust outlet, 10. Dust collection device, 11. Door sealing assembly, 12. Transmission component, 13. Power assembly, 14. Air tank, 15. Jet pipe, 16. Horn cover, 17. Hook, 111. Baffle, 1110. Bending, 112. Drive shaft, 1120. Connecting rod, 113. Drive assembly, 1131. Telescopic rod, 1132. Telescopic rod connecting plate. Detailed Implementation

[0029] The principles and features of this utility model are described below. The embodiments given are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0030] As attached Figure 1-3As shown, the vacuum cleaner in this embodiment includes a main frame 1, on which a dust collection box 3 is mounted. An air collection chamber 4 is mounted on the top of the dust collection box, and the dust collection box 3 and the air collection chamber 4 are separated by a partition. A fan assembly 2 is mounted on the top of the air collection chamber, and the fan assembly 2 is connected to a power assembly 13 via a transmission component 12 (shown as a transmission belt). The inner cavity of the dust collection box 3 is connected to a dust collection pipe 5, and a dust removal filter 6 is installed inside the dust collection box 3. The dust removal filter 6 is equipped with a dust removal device for removing dust and waste from the filter 6. The core of the filter element 6 is connected to the air collection chamber 4 through a connection port at the bottom of the air collection chamber 4. The suction side of the fan assembly 2 is connected to the air collection chamber 4, and the exhaust side of the fan assembly 2 is connected to the air outlet 8. The bottom of the dust collection box 3 is provided with a dust outlet 9, and a dust collection device 10 is provided below the dust outlet 9 to collect the waste material falling from the dust filter element 6. The dust collection device 10 can specifically adopt a dust collection hopper structure. The bottom of the dust collection hopper is sealed with a dust collection cloth bag or dust collection bag through a flange, or the dust collection hopper is used in conjunction with a dust collection trolley that is sealed with it.

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

[0032] In use, the dust collection pipe 5 is connected to the shot blasting machine to receive the dust-laden gas generated by the machine. The dust-laden gas enters the dust collection box 3 through the dust collection pipe 5. Under the action of the fan assembly 2, the dust-laden gas is filtered from the outside to the inside through the dust collector filter 6, enters the air collection chamber 4, and is finally discharged from the air outlet 8 on the fan assembly 2, leaving clean air after the waste dust has been filtered out. When the amount of dust adsorbed on the surface of the dust collector filter 6 accumulates to a certain level, or at regular intervals, the dust removal device is used to clean the dust collector filter 6, causing the waste dust adsorbed on the surface of the dust collector filter 6 to fall into the dust collection device 10 through the dust outlet 9 for collection. After the dust collection device 10 is full of waste, it is manually emptied.

[0033] The dust removal device in this embodiment adopts a pulse jet cleaning device, which includes a pulse jet mechanism 7, a prior art technology, comprising an electromagnetic pulse valve and a pulse controller for controlling it. 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 the dust collector filter element 6. The jet pipe 15 is disposed in the air collection chamber 4, and the jet pipe 15 has a jet port facing the core of the dust collector filter element 6. During the dust removal operation, the pulse jet mechanism uses compressed air from the air storage tank 14 to blow onto the dust collector filter element 6 through the jet pipe 15, causing the waste dust adsorbed on the surface of the dust collector filter element 6 to be removed. In addition, other embodiments may use existing technical structures such as vibration cleaning devices, which will not be described in detail here.

[0034] In this embodiment, a sealing assembly 11 is also provided inside the dust collection box 3, below the dust removal filter element 6, to control whether the dust collection passage from the dust collection box 3 to the dust collection device 10 is open or closed. See Figure 2 As shown, the sealing assembly 11 includes multiple baffles 111 arranged in parallel. Both ends of each baffle 111 are rotatably connected to the side wall of the dust collection box 3 via a drive shaft 112. Each baffle 111 is connected to a drive assembly 113 for driving it to rotate around the axis of the drive shaft 112. The multiple baffles 111 can rotate synchronously to the following two different states under the drive of the drive assembly 113:

[0035] State 1 refers to the state where the dust collection device 10 needs to discharge materials, see Figure 4 As shown, at this time, the baffle 111 rotates to connect with the outer edge of the adjacent baffle 111, so that the inner cavity of the dust collection box 3 and the dust collection device 10 are not connected to each other, that is, the inner cavity of the dust collection box 3 and the dust collection device 10 are isolated, so that the dust collection device 10 can be discharged without stopping the shot blasting machine and the dust collector.

[0036] State 2 refers to the state where, under normal operation, there is no need to discharge material from the dust collection device 10, see [link to documentation]. 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 collection box 3 is connected to the dust collection device 10.

[0037] In the above embodiments, the sealing assembly 11 adopts a structure of multiple parallel baffles 111, and the dust collection passage is opened or closed by controlling the synchronous rotation of multiple baffles through the drive assembly 113. Compared with the existing technology that uses an integral flap-type discharge valve or a pull-plate type discharge valve, the overall structure occupies less space in the dust collection box 3, and there is no need to make excessive equipment modifications to the dust collection box 3, making the installation simpler.

[0038] To achieve synchronous rotation of the multiple baffles 111, the drive assembly 113 in the above embodiment includes a telescopic rod 1131 disposed on the outside of the dust collection box 3, see Figure 3 As shown, the telescopic rod 1131 can specifically be an electric push rod, one end of which is hinged to the outer wall of the dust collection box 3, and the other end of the telescopic rod 1131 is hinged to the hinge seat on the top of the telescopic rod connecting plate 1132. The telescopic rod connecting plate 1132 is connected with connecting rods 1120 corresponding one-to-one with the baffle 111. Multiple connecting rods 1120 are arranged in parallel. One end of the connecting rod 1120 is fixedly connected to the drive 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 follows: Figure 2 As shown, all baffles 111 are inclined, and the inner cavity of the dust collection box 3 is connected to the dust collection device 10, that is, the dust outlet channel is unobstructed. The waste dust on the dust filter element falls into the dust collection device 10 after pulse cleaning. When it is necessary to clean the waste in the dust collection device, the telescopic end of the control telescopic rod 1131 is extended, which drives the telescopic rod connecting plate 1132 to move forward. Each connecting rod 1120 rotates accordingly, and drives the transmission shaft 112 to rotate around its own axis. Figure 2 Rotate 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 sealing structure, so that the inner cavity of the dust collection box 3 and the dust collection device 10 are not connected to each other, that is, the inner cavity of the dust collection box 3 is isolated from the dust collection device 10. At this time, the dust collection device 10 can be operated to discharge material without stopping the shot blasting machine and the dust collector. After the material is discharged, the baffle 111 can be reset.

[0039] Based on the above embodiments, in a preferred embodiment of this utility model, the cross-section of the baffle 111 is set in a Z-shape. Its function is to create a certain height difference between the two sides of the baffle 111 when it rotates to a horizontal position, thereby causing the outer edges of adjacent baffles 111 to overlap to a certain extent, ensuring a seal at the joint of adjacent baffles 111. In addition, the inner wall of the dust collection box 3 is also provided with side plates 30 that are adapted to the outer edge of the baffle 111. After the baffle 111 rotates to a horizontal position, the outer edge of the baffle 111 near the inner wall of the dust collection box 3 achieves a seal between the baffle 111 and the inner wall of the dust collection box 3 through contact with the side plates 30. A small gap is left between the two ends of the baffle 111 and the inner wall of the dust collection box 3, allowing the baffle 111 to rotate while ensuring a seal. Combined with the seal at the joint of adjacent baffles 111, the sealing effect of the sealing door assembly 11 is ensured.

[0040] Based on the above embodiments, more preferably, the two sides of the baffle 111 are respectively provided with bends 1110, and the two bends 1110 are in opposite directions, see Figure 2 As shown, when the baffle 111 is rotated to a horizontal position, the outer edge of the baffle 111 stacked on top is bent upwards, and the outer edge of the baffle 111 stacked below is bent downwards. The purpose of this 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 interlocking seal at the joint of adjacent baffles 111.

[0041] Based on the above embodiments, in a preferred embodiment of the present invention, an inverted conical horn cover 16 is provided in the gas collection chamber 4. The horn cover 16 is fixed at the connection port between the gas collection chamber 4 and the core of the dust removal filter element 6 and faces the injection port, so as to receive the pulse gas ejected from the injection port and make the pulse gas act on the core of the dust removal filter element 6.

[0042] Based on the above embodiments, in a preferred embodiment of this utility model, the dust removal filter element 6 is hung on the spray pipe 15 by a hook 17. The hook 17 is fixed to the dust removal filter element 6 inside the dust collection box 3 and is hung and fixed upwards on the spray pipe 15 through the hollow part of the horn cover 16. The spray pipe 15 serves as both a conveying pipe for pulsed gas and a hanging rod for the dust removal filter element 6. The overall structural space design is more reasonable, and the fixing of the dust removal filter element 6 is simpler.

Claims

1. A vacuum cleaner, comprising a main frame (1), a fan assembly (2), and a vacuum chamber (3) and an air collection chamber (4) disposed on the main frame (1) and isolated from each other, wherein the inner cavity of the vacuum chamber (3) is connected to a vacuum pipe (5), a dust removal filter (6) is provided inside the vacuum chamber (3), the dust removal filter (6) is equipped with a dust removal device for removing dust and waste from the dust removal filter (6); the core of the dust removal filter (6) is connected to the air collection chamber (4), the suction side of the fan assembly (2) is connected to the air collection chamber (4), and the exhaust side of the fan assembly (2) is connected to an exhaust port (8); a dust outlet (9) is provided at the bottom of the vacuum chamber (3), and a dust collection device (10) is provided below the dust outlet (9), characterized in that, Inside the dust collection box (3), below the dust removal filter element (6), a sealing assembly (11) is also provided. The sealing assembly (11) includes multiple baffles (111) arranged in parallel. The two ends of the baffles (111) are rotatably connected to the side wall of the dust collection box (3) through a drive shaft (112). The baffles (111) are connected to a drive assembly (113) for driving them to rotate around the axis of the drive shaft (112). Multiple baffles (111) can rotate synchronously under the drive of the drive assembly (113) to present the following two different states. State 1: The baffle (111) rotates until the outer edge of the adjacent baffle (111) is connected, so that the inner cavity of the dust collection box (3) and the dust collection 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 collection device (10).

2. The vacuum cleaner according to claim 1, characterized in that, The drive assembly (113) includes a telescopic rod (1131) disposed on the outside of the dust collection box (3). One end of the telescopic rod (1131) is hinged to the outer wall of the dust collection box (3), and 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 a connecting rod (1120) corresponding to the baffle (111). Multiple connecting rods (1120) are arranged in parallel. One end of the connecting rod (1120) is fixedly connected to the drive 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 set in a Z-shape.

4. The vacuum cleaner according to claim 3, characterized in that, The baffle (111) has bends (1110) on both sides of its edge, 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 plate (30) that is 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 component (12).

7. The vacuum cleaner according to claim 1, characterized in that, The dust removal device is either a pulse jet dust removal device or a vibration dust removal device.

8. The vacuum cleaner according to claim 7, characterized in that, The pulse jet cleaning device includes a pulse jet mechanism (7), one end of which is connected to an air storage tank (14), and the other end is connected to a jet pipe (15) corresponding to the dust removal filter element (6). The jet pipe (15) is set in the air collection chamber (4), and the jet pipe (15) has a jet port facing 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 inside the air collection chamber (4). The horn cover (16) is fixed at the connection between the air collection chamber (4) and the core of the dust removal filter element (6) and faces the spray 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) by a hook (17).

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