Local negative pressure clean bench

Abstract

The utility model relates to the technical field of purification and dust removal equipment, and discloses a local negative-pressure clean bench which comprises a workbench, a cleaning device and a cleaning device, the air suction device is arranged below the workbench; the air duct penetrates through the workbench; one end of the air duct is communicated with the air suction device, and the other end is communicated with the upper area of the workbench; the dust collection device is arranged at the air suction device; the air suction device sucks air, L-shaped air entraining airflow is provided through the air duct, negative pressure is formed in the area above the workbench, and dissipated dust is sucked into the dust collection device through the airflow; according to the local negative pressure clean bench provided by the utility model, the negative pressure fan below the workbench is matched with the air duct, local negative pressure is formed in the area above the workbench, the L-shaped air entraining airflow is provided, and the local negative pressure and the L-shaped air flow are arranged, so that the clean bench does not influence powder treatment while absorbing dissipated dust, and the local negative pressure and the L-shaped air flow are both achieved; and the L-shaped airflow cannot blow powder on the table top to a background area, so that a clean working environment is ensured, and popularization and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of purification and dust removal equipment, in particular to a local negative pressure clean bench. Background Art

[0002] Purification and dust removal equipment is mainly used in dust-free workshops, and includes various types such as clean workbenches and negative pressure weighing rooms. The clean workbench blows air downward through the top fan to provide clean air to ensure that the items are in a clean environment. The negative pressure weighing room blows air downward through the top, and negative pressure is formed at the bottom to collect dust.

[0003] In the prior art, in the process of grinding, sieving, packaging and other operations on solid powder, fine granular dust is inevitably emitted to the surroundings, polluting the dust-free environment. When using purification and dust removal equipment to treat the dust, the existing purification and dust removal equipment uses downward airflow to blow the powder being operated on the table into the background area, polluting the dust-free environment. In addition, the powder material is expensive, causing certain economic losses and poor usability. Utility Model Content

[0004] In view of this, the utility model provides a local negative pressure clean bench to solve the problem of poor usability when the purification and dust removal equipment uses downward airflow to sweep when treating the scattered dust.

[0005] The utility model provides a local negative pressure clean bench, comprising: a workbench, which is suitable for performing powder processing at the table top; an air suction device, which is arranged below the workbench; an air duct, which is arranged through the workbench; one end of the air duct is connected with the air suction device, and the other end is connected with the upper area of ​​the workbench; a dust collecting device, which is arranged at the air suction device; wherein the air suction device inhales air and provides an "L"-shaped air flow through the air duct, a negative pressure is formed at the upper area of ​​the workbench, and the scattered dust is sucked into the dust collecting device through the air flow.

[0006] Beneficial effects: By setting a negative pressure fan under the table top of the workbench and an air duct connecting the negative pressure fan and the top of the table top, negative pressure is formed in the upper area of ​​the workbench, and an L-shaped air flow is provided, so that the purpose of handling scattered dust does not affect the powder handling work on the table top is achieved, and it is easy to use; the setting of local negative pressure allows the clean bench to absorb scattered dust without affecting the powder handling, and it has both advantages, is highly practical, adapts to the needs of production processes, ensures the cleanliness of the working environment, and is conducive to promotion and use; the L-shaped air flow will not blow the powder on the table top to the background area, effectively preventing it from polluting the clean workshop; compared with existing purification and dust removal equipment, the local negative pressure clean bench provides an L-shaped airflow, which avoids excessive blowing of powder materials by vertical airflow, reduces economic losses, and improves performance.

[0007] In an optional embodiment, it further comprises an antechamber disposed beside the workbench, wherein the antechamber is suitable for accommodating an operator;

[0008] An air supply device is provided on the top of the front chamber, and the air supply device is suitable for providing a downward clean air flow.

[0009] In an optional embodiment, the clean air flow is independent of the bleed air flow.

[0010] In an optional embodiment, it further includes a machine body, and the workbench, the air suction device, the air duct and the front chamber are all arranged on the machine body.

[0011] In an optional embodiment, the air suction device is a negative pressure fan.

[0012] In an optional embodiment, the air duct and the dust collecting device are respectively arranged on opposite sides of the negative pressure fan.

[0013] In an optional embodiment, the air supply device is a fan filter unit.

[0014] In an optional embodiment, it also includes a door curtain, which is arranged at the body and covers the front chamber and is suitable for covering and protecting the internal area of ​​the front chamber.

[0015] In an optional embodiment, it also includes rollers, and a plurality of rollers are arranged at intervals at the bottom of the body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the local negative pressure clean bench of the utility model.

[0018] Description of reference numerals:

[0019] 1. Workbench; 2. Air suction device; 3. Air duct; 4. Dust collecting device; 5. Air flow; 6. Antechamber; 7. Air supply device; 71. Clean air flow; 8. Machine body; 81. Roller; 9. Door curtain. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Combine the following Figure 1 , describing an embodiment of the utility model.

[0025] According to an embodiment of the utility model, a local negative pressure clean bench is provided;

[0026] The local negative pressure clean bench includes: a workbench 1, which is suitable for powder processing at the table top, and the powder processing includes solid grinding, screening, packaging and other operations; an air suction device 2, which is arranged below the workbench 1, and the air suction device 2 can be a negative pressure fan; an air duct 3, which runs through the workbench 1; one end of the air duct 3 is connected to the air suction device 2, and the other end is connected to the upper area of ​​the workbench 1; the air duct 3 and the dust collecting device 4 are respectively arranged on opposite sides of the negative pressure fan, and the dust collecting device 4 is arranged on the air outlet side of the negative pressure fan; the dust collecting device 4 is arranged at the air suction device 2, and the dust collecting device 4 can be a dust removal and filtering device; wherein the air suction device 2 inhales air and provides an "L"-shaped air flow 5 through the air duct 3, and a negative pressure is formed in the upper area of ​​the workbench 1, and the scattered dust is sucked into the dust collecting device 4 through the air flow.

[0027] The local negative pressure clean bench also includes an antechamber 6, which is arranged beside the workbench 1, and the antechamber 6 is suitable for accommodating operators; an air supply device 7 is provided on the top of the antechamber 6, and the air supply device 7 is suitable for providing a downward clean airflow 71 to ensure that the antechamber 6 is in a clean environment; the clean airflow 71 is independent of the induced airflow 5, and respectively assumes the cleaning and dust removal effects; the air supply device 7 is an FFU, and the FFU is a fan filter unit, including a fan and a filter, for providing a clean airflow 71.

[0028] The use process of the local negative pressure clean bench is that the operator stands in the front room 6 and performs powder processing operations on the workbench 1; on the one hand, the air supply device 7 in the front room 6 continuously provides clean air flow 71 downwards, so that the front room 6 is in a clean environment; on the other hand, as the powder processing work proceeds, fine granular dust is scattered in the upper area of ​​the workbench 1, and the suction device 2 keeps suctioning and cooperates with the air duct 3 to provide an L-shaped air flow 5. The air duct 3 passes through the workbench 1 and communicates with the upper area of ​​the workbench 1, so that the upper area of ​​the workbench 1 is in negative pressure, and the dust in the upper area is introduced into the dust collecting device 4 through the air flow 5 and the air duct 3, and the solid powder on the table will not be blown into the background area, and the powder processing work can be carried out continuously; by setting the negative pressure fan, the air duct 3 and the L-shaped air flow 5, a negative pressure is formed in the upper part of the workbench 1, and at the same time, direct blowing on the table is prevented, and dust suction and dust removal are ensured while ensuring that the powder processing work is not affected, and the usability is strong.

[0029] In this embodiment, a negative pressure fan is arranged under the table top of the workbench 1, and an air duct 3 is used to connect the negative pressure fan and the top of the table top, so that negative pressure is formed in the upper area of ​​the workbench 1, and an L-shaped air flow 5 is provided, so as to achieve the purpose of not affecting the powder processing work on the table top when processing the scattered dust, and the usability is strong; the setting of local negative pressure enables the clean bench to absorb the scattered dust without affecting the powder processing, and both are achieved, the practicality is strong, the requirements of the production process are adapted, the cleanliness of the working environment is ensured, and it is beneficial to promote and use; the L-shaped air flow 5 will not blow the powder on the table top to the background area, effectively preventing it from polluting the clean workshop; compared with the existing purification and dust removal equipment, the local negative pressure clean bench provides an L-shaped airflow, which avoids excessive blowing of powder materials by vertical airflow, reduces economic losses, and improves performance.

[0030] In some embodiments, in combination Figure 1 As shown, the local negative pressure clean bench also includes a body 8, the workbench 1, the air suction device 2, the air duct 3 and the front chamber 6 are all arranged inside the body 8, and the air supply device 7 is arranged on the top of the body 8. The body 8 serves as the frame of the clean bench and plays a basic bearing and protection function.

[0031] In some embodiments, in combination Figure 1 As shown, the local negative pressure clean bench also includes a door curtain 9, which is arranged at the machine body 8 and covers the front chamber 6, suitable for covering and protecting the internal area of ​​the front chamber 6 to improve the cleanliness of the front chamber 6.

[0032] In some embodiments, in combination Figure 1 As shown, the local negative pressure clean bench also includes rollers 81. A plurality of rollers 81 are arranged at intervals at the bottom of the machine body 8 to assist in moving the clean bench, saving time and effort.

[0033] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. Although the embodiments of the present utility model are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations are all within the scope defined by the present utility model.

Claims

1. A local negative pressure clean bench, characterized in that: include: A workbench (1) suitable for performing powder processing at the workbench surface; An air suction device (2) is arranged below the workbench (1); An air duct (3) is arranged to penetrate the workbench (1); one end of the air duct (3) is connected to the air suction device (2), and the other end is connected to the upper area of ​​the workbench (1); A dust collecting device (4) is arranged at the air suction device (2); The suction device (2) sucks air and provides an "L"-shaped air flow (5) through the air duct (3), a negative pressure is formed in the upper area of ​​the workbench (1), and the scattered dust is sucked into the dust collecting device (4) through the air flow.

2. The local negative pressure clean bench according to claim 1, characterized in that: It also includes a front room (6) disposed beside the workbench (1), wherein the front room (6) is suitable for accommodating an operator; An air supply device (7) is provided at the top of the front chamber (6), and the air supply device (7) is suitable for providing a downward clean air flow (71).

3. The local negative pressure clean bench according to claim 2, characterized in that: The clean air flow (71) is independent of the induced air flow (5).

4. The local negative pressure clean bench according to claim 2, characterized in that: It also includes a machine body (8), wherein the workbench (1), the air suction device (2), the air duct (3) and the front chamber (6) are all arranged on the machine body (8).

5. The local negative pressure clean bench according to claim 1, characterized in that The air suction device (2) is a negative pressure fan.

6. The local negative pressure clean bench according to claim 5, characterized in that: The air duct (3) and the dust collecting device (4) are respectively arranged on opposite sides of the negative pressure fan.

7. The local negative pressure clean bench according to claim 2, characterized in that: The air supply device (7) is a fan filter unit.

8. The local negative pressure clean bench according to claim 4, characterized in that: It also includes a door curtain (9) which is arranged on the machine body (8) and covers the front chamber (6) and is suitable for covering and protecting the internal area of ​​the front chamber (6).

9. The local negative pressure clean bench according to claim 8, characterized in that: It also includes rollers (81), wherein a plurality of rollers (81) are arranged at intervals at the bottom of the machine body (8).

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