Negative pressure dust removal device for small equipment

Abstract

The utility model discloses a small equipment negative pressure dust removal device which comprises a dust collection box and a fan, an air duct is connected between the dust collection box and the fan, a partition plate is integrally formed on the upper layer in the dust collection box, the upper side and the lower side in the dust collection box are divided by the partition plate to form a mounting cavity and a negative pressure cavity, and the air duct is communicated with the negative pressure cavity. Dust is filtered and collected through the cloth bag, when much dust is collected in the cloth bag, the electric push rod can drive the cloth bag to move up and down, stretch or compress the cloth bag, so that the dust in the cloth bag is shaken off to the bottom in the bag, and the electric guide rail and the guide block are used in cooperation to stretch the cloth bag back and forth from the two sides, so that the dust in the cloth bag is removed. The electric push rod and the electric guide rail are combined for use, the cloth bag is shaken from multiple directions at the same time, the dust attached to the inner wall of the cloth bag can be shaken to the bottom in the bag, holes in the surface of the bag body are prevented from being blocked by the dust, dust suction and collection are facilitated, use is convenient, and more economical and environment-friendly effects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, in particular to a negative pressure dust removal device for small equipment. Background Technique

[0002] In factories and other places, when processing or handling parts and objects, dust is usually generated during the processing. The dust not only affects the physical health of workers but also affects work efficiency, so the dust needs to be treated. The negative pressure dust collector is a common dust removal device in the prior art.

[0003] The prior art publication number CN220405126U discloses a small high negative pressure dust removal device, which relates to the technical field of negative pressure dust removal equipment. Specifically, it includes an equipment body. The inner cavity of the equipment body is divided into an air induction cavity, a back blowing cavity, a filtering cavity and an ash collection cavity from top to bottom. A high negative pressure fan is arranged in the air induction cavity, and the air inlet end of the high negative pressure fan extends into the inner cavity of the back blowing cavity. A back blowing valve is arranged in the back blowing cavity, and one side of the top end of the inner cavity of the filtering cavity is fixedly connected with a suction port valve.

[0004] In the above device, a negative pressure is generated in the filtering cavity by the fan to suck the dust into the filtering cavity and filter the dust through the filter cartridge. When the filter cartridge is in use, the filter holes on its surface are easily blocked and need to be cleaned or replaced regularly, resulting in low economic benefits. Moreover, the filter cartridge cannot collect the dust, and a separate ash collection cavity needs to be set up to collect the dust. After the dust is collected, the ash collection cavity needs to be cleaned regularly, which is time-consuming and laborious and very troublesome. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a negative pressure dust removal device for small equipment to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A negative pressure dust removal device for small equipment includes a dust collection box and a fan. A wind duct is connected between the dust collection box and the fan. A partition is integrally formed on the upper layer inside the dust collection box. The upper and lower sides inside the dust collection box are separated by the partition to form an installation cavity and a negative pressure cavity. The wind duct is communicated with the negative pressure cavity.

[0008] A cloth bag dust collection component is arranged in the negative pressure cavity. The cloth bag dust collection component is used for dust collection. The fan evacuates the negative pressure cavity through the wind duct to generate a negative pressure in the cavity, sucks external dust into the cavity and collects the sucked dust through the cloth bag dust collection component. One side of the dust collection box body is fixed with a dust suction pipe, and one end of the dust suction pipe is connected with the cloth bag dust collection component.

[0009] As a further solution of the present utility model: the cloth bag dust collection assembly includes two oppositely arranged electric push rods, a cloth bag and a base. Support plates are arranged on both the upper and lower sides of the cloth bag, and a plurality of second elastic buffer structures are arranged between each of the two support plates and the cloth bag. A dust collection interface is arranged on one side of the cloth bag body. One end of the dust suction pipe is connected to the dust collection interface and is communicated with the inside of the cloth bag through the dust collection interface. Vibration motors are installed on one side of each of the two support plates facing the cloth bag.

[0010] As a further solution of the present utility model: the two electric push rods are symmetrically installed in the installation cavity, and one end of the movable ends of the two electric push rods slidably penetrates through the partition plate and extends into the negative pressure cavity. Connection blocks are fixed at the ends of the movable ends of the two electric push rods. An electric guide rail is installed between the two connection blocks. A guide block is slidably connected to the electric guide rail. A connecting plate is fixed at the bottom of the guide block. The lower part of the connecting plate is elastically connected to an installation table through a plurality of first elastic buffer structures. One of the two support plates located above is fixedly connected to the installation table through a bracket, and the other is fixed to the base through bolts. The base is fixed to the bottom inner wall of the negative pressure cavity through bolts.

[0011] As a further solution of the present utility model: the first elastic buffer structure includes a telescopic rod and a first spring. The two ends of the telescopic rod are respectively fixedly connected to the connecting plate and the installation table. The first spring is sleeved on the telescopic rod, and the upper and lower ends of the first spring are respectively fixedly connected to the connecting plate and the installation table.

[0012] As a further solution of the present utility model: the second elastic buffer structure includes an upper sliding cylinder, a connecting rod, a lower sliding cylinder and a second spring. The two ends of the connecting rod are respectively slidably inserted into the upper sliding cylinder and the lower sliding cylinder, and the upper sliding cylinder is fixed to the support plate. The second spring is sleeved on the connecting rod, and the upper and lower ends of the second spring are respectively fixedly connected to the upper sliding cylinder and the lower sliding cylinder.

[0013] As a further solution of the present utility model: semi-circular buckles are fixed on one side of the cloth bag body corresponding to the plurality of second elastic buffer structures. A connecting head is fixed at the bottom of the lower sliding cylinder. A hook is arranged at the bottom of the connecting head. The connecting head hooks the corresponding semi-circular buckle on one side through the hook at its bottom. The cloth bag is movably connected between the two support plates through the cooperation of the semi-circular buckle and the connecting head.

[0014] As a further solution of the present utility model: a flow valve is installed on the dust suction pipe, and the flow valve is used to control the suction force of the dust suction pipe.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. In the present utility model, by using the cooperation of a fan and an air duct to evacuate the negative pressure cavity and generate negative pressure, due to the holes on the surface of the cloth bag located in the negative pressure cavity, the negative pressure values inside and outside the bag are kept consistent. At this time, suction will be generated in the dust suction pipe connected to the cloth bag, and external dust can be sucked into the cloth bag. The flow valve on the dust suction pipe can control the suction force to facilitate better dust suction and dust collection.

[0017] 2. In the present utility model, when there is a large amount of dust collected in the cloth bag, the cloth bag can be driven to move up and down by an electric push rod to stretch or compress the cloth bag, so that the dust in the cloth bag shakes to the bottom of the bag. Or, by using the cooperation of an electric guide rail and a guide block, the cloth bag can be stretched back and forth from both sides to make the dust in the cloth bag shake to the bottom of the bag. The combined use of the electric push rod and the electric guide rail shakes the cloth bag simultaneously from multiple directions of up, down, left, and right, which is beneficial to shaking the dust attached to the inner wall of the cloth bag to the bottom of the bag, keeping the inner wall of the cloth bag clean, preventing the holes on the surface of the bag from being blocked by dust, and facilitating dust suction and dust collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of the present utility model.

[0020] Figure 2 It is a schematic diagram of the internal structure of the dust collection box in the present utility model.

[0021] Figure 3 It is a schematic structural diagram of the cloth bag dust collection assembly in the present utility model.

[0022] Figure 4 It is a front view schematic diagram of the cloth bag dust collection assembly in the present utility model.

[0023] Figure 5 It is Figure 3 an enlarged view of part A in

[0024] Figure 6 It is Figure 3 an enlarged view of part B in

[0025] Annotation of reference numerals: 1 - Dust collection box, 2 - Fan, 3 - Air duct, 4 - Box door, 5 - Handle, 6 - Dust suction pipe, 7 - Flow valve, 8 - Bag dust collection assembly, 81 - Electric push rod, 82 - Connecting block, 83 - Electric guide rail, 84 - Guide block, 85 - Connecting plate, 86 - Installation platform, 87 - Support plate, 88 - Bag, 89 - Base, 810 - Dust collection interface, 811 - Vibration motor, 812 - Telescopic rod, 813 - First spring, 814 - Upper sliding cylinder, 815 - Connecting rod, 816 - Lower sliding cylinder, 817 - Connector, 818 - Half-ring buckle, 819 - Second spring, 9 - Negative pressure chamber, 10 - Partition board, 11 - Installation cavity. Detailed implementation mode

[0026] The following embodiments will describe the present invention in detail with reference to the drawings. In the drawings or descriptions, similar or identical parts are denoted by the same reference numerals, and in actual applications, the shapes, thicknesses or heights of the components may be enlarged or reduced. The embodiments listed in the present invention are only used to illustrate the present invention, not to limit the scope of the present invention. Any obvious modification or change made to the present invention does not depart from the spirit and scope of the present invention.

[0027] Please refer to Figures 1 - 2 , in the embodiment of the present invention, a negative pressure dust removal device for a small device includes a dust collection box 1 and a fan 2. An air duct 3 is connected between the dust collection box 1 and the fan 2. A partition board 10 is integrally formed on the upper layer inside the dust collection box 1. The upper and lower sides inside the dust collection box 1 are separated by the partition board 10 to form an installation cavity 11 and a negative pressure chamber 9. The air duct 3 is communicated with the negative pressure chamber 9;

[0028] A bag dust collection assembly 8 is arranged in the negative pressure chamber 9. The bag dust collection assembly 8 is used for dust collection. The fan 2 evacuates the negative pressure chamber 9 through the air duct 3 to generate negative pressure in the chamber, sucks external dust into the chamber and collects the sucked dust through the bag dust collection assembly 8. One side of the dust collection box 1 body is fixed with a dust suction pipe 6. One end of the dust suction pipe 6 is connected to the bag dust collection assembly 8, and a flow valve 7 is installed on the dust suction pipe 6. The flow valve 7 is used to control the suction force of the dust suction pipe 6.

[0029] Please refer to Figures 3 - 6 , the bag dust collection assembly 8 includes two relatively arranged electric push rods 81, a bag 88 and a base 89. The two electric push rods 81 are symmetrically installed in the installation cavity 11, and one end of the movable ends of the two electric push rods 81 slides through the partition board 10 and extends into the negative pressure chamber 9. Connecting blocks 82 are fixed to the ends of the movable ends of the two electric push rods 81. An electric guide rail 83 is installed between the two connecting blocks 82. A guide block 84 is slidably connected to the electric guide rail 83. A connecting plate 85 is fixed to the bottom of the guide block 84. The lower part of the connecting plate 85 is elastically connected to an installation platform 86 through a plurality of first elastic buffer structures;

[0030] Support plates 87 are provided on both the upper and lower sides of the cloth bag 88. A plurality of second elastic buffer structures are provided between the two support plates 87 and the cloth bag 88. One of the two support plates 87 located above is fixedly connected to the mounting table 86 through a bracket, and the other is fixedly bolted to the base 89. The base 89 is fixedly bolted to the bottom inner wall of the negative pressure chamber 9. A dust collection interface 810 is provided on one side of the bag body of the cloth bag 88. One end of the dust suction pipe 6 is connected to the dust collection interface 810 and is communicated with the inside of the cloth bag 88 through the dust collection interface 810. Vibration motors 811 are installed on one side of the two support plates 87 facing the cloth bag 88;

[0031] The first elastic buffer structure includes a telescopic rod 812 and a first spring 813. The two ends of the telescopic rod 812 are respectively fixedly connected to the connecting plate 85 and the mounting table 86. The first spring 813 is sleeved on the telescopic rod 812, and the upper and lower ends of the first spring 813 are respectively fixedly connected to the connecting plate 85 and the mounting table 86;

[0032] The second elastic buffer structure includes an upper sliding cylinder 814, a connecting rod 815, a lower sliding cylinder 816 and a second spring 819. The two ends of the connecting rod 815 are respectively slidably inserted into the upper sliding cylinder 814 and the lower sliding cylinder 816, and the upper sliding cylinder 814 is fixed on the support plate 87. The second spring 819 is sleeved on the connecting rod 815, and the upper and lower ends of the second spring 819 are respectively fixedly connected to the upper sliding cylinder 814 and the lower sliding cylinder 816. A connecting head 817 is fixed to the bottom of the lower sliding cylinder 816. Half-ring buckles 818 are fixed on one side of the bag body of the cloth bag 88 corresponding to the plurality of second elastic buffer structures. A hook is provided at the bottom of the connecting head 817. The connecting head 817 hooks the corresponding half-ring buckle 818 through the hook at its bottom. The cloth bag 88 is movably connected between the two support plates 87 through the cooperation of the half-ring buckle 818 and the connecting head 817.

[0033] Working principle:

[0034] During use, the negative pressure chamber 9 is evacuated and a negative pressure is generated through the cooperation of the fan 2 and the air duct 3. Due to the holes on the surface of the cloth bag 88 located in the negative pressure chamber 9, the negative pressure values inside and outside the bag are kept the same. At this time, suction will be generated in the dust suction pipe 6 connected to the cloth bag 88, and external dust can be sucked into the cloth bag 88. The flow valve 7 on the dust suction pipe 6 can control the suction force to facilitate better dust suction and collection;

[0035] When there is a large amount of dust collected in the cloth bag 88, the electric push rod 81 can be used to drive the cloth bag 88 to move up and down, stretch or compress the cloth bag 88, so that the dust in the cloth bag 88 shakes down to the bottom inside the bag. It is also possible to use the cooperation of the electric guide rail 83 and the guide block 84 to stretch the cloth bag 88 back and forth from both sides, so that the dust in the cloth bag 88 shakes down to the bottom inside the bag. The electric push rod 81 and the electric guide rail 83 are used in combination to shake the cloth bag 88 simultaneously from multiple directions of up, down, left and right, which is beneficial to shaking the dust attached to the inner wall of the cloth bag 88 down to the bottom inside the bag, keeping the inner wall of the cloth bag 88 clean, avoiding the holes on the surface of the bag body from being blocked by dust, and being beneficial to dust absorption and dust collection.

[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0037] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A negative pressure dust removal device for small equipment, comprising a dust collecting box (1) and a fan (2), characterized in that: An air duct (3) is connected between the dust box (1) and the fan (2); a partition (10) is integrally formed on the upper layer inside the dust box (1); the upper and lower sides inside the dust box (1) are separated by the partition (10) to form an installation cavity (11) and a negative pressure cavity (9); and the air duct (3) is in communication with the negative pressure cavity (9); A dust bag collecting assembly (8) is arranged in the negative pressure chamber (9), and the dust bag collecting assembly (8) is used for collecting dust. The fan (2) evacuates the negative pressure chamber (9) through the air duct (3) to generate negative pressure in the chamber, thereby sucking external dust into the chamber and collecting the sucked dust through the dust bag collecting assembly (8). A dust suction pipe (6) is fixed to one side of the dust collecting box (1), and one end of the dust suction pipe (6) is connected to the dust bag collecting assembly (8).

2. The small-sized equipment negative pressure dust removal device according to claim 1, characterized in that: The bag dust collection assembly (8) comprises two electric push rods (81) arranged opposite to each other, a bag (88) and a base (89); support plates (87) are arranged on the upper and lower sides of the bag (88); a plurality of second elastic buffer structures are arranged between the two support plates (87) and the bag (88); a dust collection interface (810) is arranged on one side of the bag body of the bag (88); one end of the dust suction pipe (6) is connected to the dust collection interface (810) and communicates with the inside of the bag (88) through the dust collection interface (810); and a vibration motor (811) is installed on one side of the two support plates (87) facing the bag (88).

3. The negative pressure dust removal device for small equipment according to claim 2, characterized in that: The two electric push rods (81) are symmetrically installed in the installation cavity (11), and one end of the movable ends of the two electric push rods (81) slides through the partition (10) and extends into the negative pressure cavity (9). The ends of the movable ends of the two electric push rods (81) are fixed with connecting blocks (82), and an electric guide rail (83) is installed between the two connecting blocks (82). A guide block (84) is slidably connected to the electric guide rail (83), and a connecting plate (85) is fixed to the bottom of the guide block (84). The bottom of the connecting plate (85) is elastically connected to a mounting platform (86) through a plurality of first elastic buffer structures. One of the two support plates (87) located at the top is connected and fixed to the mounting platform (86) through a bracket, and the other is fixed to the base (89) by bolts, and the base (89) is fixed to the bottom inner wall of the negative pressure cavity (9) by bolts.

4. The negative pressure dust removal device for small equipment according to claim 3, characterized in that: The first elastic buffer structure comprises a telescopic rod (812) and a first spring (813), the two ends of the telescopic rod (812) are respectively connected and fixed to the connecting plate (85) and the mounting platform (86), the first spring (813) is sleeved on the telescopic rod (812), and the upper and lower ends of the first spring (813) are respectively connected and fixed to the connecting plate (85) and the mounting platform (86).

5. The negative pressure dust removal device for small equipment according to claim 4, characterized in that: The second elastic buffer structure includes an upper slide (814), a connecting rod (815), a lower slide (816) and a second spring (819), the two ends of the connecting rod (815) are respectively slidably inserted into the upper slide (814) and the lower slide (816), and the upper slide (814) is fixed on the support plate (87), the second spring (819) is sleeved on the connecting rod (815), and the upper and lower ends of the second spring (819) are respectively connected and fixed to the upper slide (814) and the lower slide (816).

6. The negative pressure dust removal device for small equipment according to claim 5, characterized in that: A half-ring buckle (818) is fixed to one side of the bag body of the cloth bag (88) corresponding to the plurality of the second elastic buffer structures, a connecting head (817) is fixed to the bottom of the lower slide cylinder (816), a hook is provided at the bottom of the connecting head (817), the connecting head (817) is hooked to the half-ring buckle (818) on the corresponding side through the hook at the bottom thereof, and the cloth bag (88) is movably connected between the two support plates (87) through the cooperation of the half-ring buckle (818) and the connecting head (817).

7. The negative pressure dust removal device for small equipment according to claim 1 or 6, characterized in that: A flow valve (7) is installed on the dust suction pipe (6), and the flow valve (7) is used to control the suction force of the dust suction pipe (6).

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