Pre-cleaning filter screen for clean bench

Abstract

The utility model relates to the technical field of clean workbenches, in particular to a pre-cleaning filter screen for a clean workbench, which comprises a main machine table, a fan device is arranged at the upper part in the main machine table, a top cover is detachably arranged at the top of the main machine table, and a filter screen for primary filtration is arranged between the top cover and the fan device; and the loading and unloading assembly is arranged on the top cover and is used for combining the filter screen, installing the filter screen in the inner groove of the top cover and placing the filter screen on the air inlet surface of the fan device. By means of the assembly and disassembly assembly, on one hand, during installation, the top cover is installed on the top of the main machine table, and meanwhile the cleaned and replaced filter screen is rapidly and accurately assembled on the upper surface of the draught fan device; on the other hand, during disassembly, the top cover and the filter screen can be taken down together, the operation is simple, the pre-cleaning filter screen is very convenient to disassemble and assemble, and the effect of quickly disassembling and assembling the pre-cleaning filter screen is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of clean workbenches, in particular to a pre-cleaning filter screen for a clean workbench. Background Art

[0002] When the existing clean bench uses a pre-clean filter, the pre-clean filter and the clean bench are designed as one. When the pre-clean filter needs to be cleaned and replaced after long-term use, it is very inconvenient to disassemble and assemble the pre-clean filter, and the pre-clean filter cannot be disassembled and assembled quickly.

[0003] The above content is only used to assist in understanding the technical solution of the present invention and does not mean that the above content is the closest prior art. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned deficiencies and provide a pre-cleaning filter for a clean workbench.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a pre-cleaning filter for a clean workbench, comprising a main unit, a fan device is provided above the interior of the main unit, a top cover is detachably provided on the top of the main unit, and a filter for preliminary filtration is provided between the top cover and the fan device;

[0006] The assembly and disassembly assembly is arranged on the top cover and is used for assembling the filter screen and installing it in the inner groove of the top cover and placing the filter screen on the air inlet surface of the fan device.

[0007] Furthermore, the loading and unloading assembly includes two left-right symmetrical side clamps, and the outer facades of the side clamps are provided with spring side frames fixed to the inner groove wall of the top cover.

[0008] Furthermore, a guide plate is vertically provided on the upper side of the spring side frame and on the outer facade of the side clamping plate, and a guide groove for sliding through is provided on the outside of the guide plate and on the corresponding end portion on the top cover.

[0009] Furthermore, assembly grooves are provided at the lower parts of both sides of the filter screen.

[0010] Furthermore, the inner facade of the side clamping plate is provided with an assembly block that matches the assembly groove.

[0011] Furthermore, a ventilation mesh plate is provided directly above the filter screen and on the end surface of the top cover.

[0012] Furthermore, a slot for cooperation is provided at the outer end of the guide plate and on the inner wall of the main platform.

[0013] Furthermore, the top cover and the guide plate are both provided with fixing screw holes for fixing and locking.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a loading and unloading assembly. On the one hand, during installation, the guide plate and the guide groove are used to move the side clamping plate, so that the guide plate passes through the guide groove and is laterally plugged into the slot on the inner wall of the main unit, thereby realizing the installation of the top cover on the top of the main unit. Before installation, the cleaned and replaced filter screen is fixed to the lower side of the inner groove of the top cover by the elastic support of the spring side frame, which is convenient for quickly and accurately assembling the filter screen on the upper surface of the fan device during installation; on the other hand, during disassembly, after removing the fixing screws at the fixing screw holes, the filter screen to be removed will be fixed by the assembly block on the side clamping plate under the elastic action of the spring side frame, thereby realizing the removal of the top cover and the filter screen at the same time during disassembly, which is simple to operate and makes the disassembly and assembly of the pre-cleaning filter screen very convenient, thereby achieving the effect of quickly disassembling and assembling the pre-cleaning filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 A three-dimensional structural diagram of an embodiment of the present invention from one perspective;

[0017] Figure 2 A three-dimensional structural diagram of a top portion of an embodiment of the present invention in a disassembled state from one perspective;

[0018] Figure 3 A three-dimensional structural diagram of the related structure assembled on the top cover of an embodiment of the utility model from one perspective;

[0019] Figure 4 A three-dimensional structural diagram of the related structure assembled on the top cover of one embodiment of the utility model from another perspective;

[0020] Figure 5 This is a three-dimensional structural diagram of a filter screen according to an embodiment of the present invention from one perspective.

[0021] In the figure: 1. Main unit; 2. Fan device; 3. Top cover; 31. Ventilation mesh plate; 4. Filter; 41. Assembly slot; 5. Loading and unloading components; 51. Side clamp; 511. Assembly block; 52. Spring side frame; 53. Guide plate; 54. Guide slot; 55. Fixing screw hole; 6. Slot. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes in which A and B are satisfied at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0025] like Figure 1-5 As shown, the utility model is a pre-cleaning filter for a clean workbench, comprising a main unit 1, a fan device 2 is provided above the main unit 1, a top cover 3 is detachably provided on the top of the main unit 1, and a filter 4 for primary filtration is provided between the top cover 3 and the fan device 2;

[0026] The assembly and disassembly assembly 5 is provided on the top cover 3 and is used to assemble the filter 4 and install it in the inner groove of the top cover 3 and place the filter 4 on the air inlet surface of the fan device 2 .

[0027] In a specific implementation, the fan device 2 is fixed by bolts on the upper part of the main unit 1, and the top cover 3 is fixed by bolts above the fan device 2 and on the top of the main unit 1, so that the filter 4 can be regularly disassembled and removed for cleaning and replacement, thereby solving the problem of reduced filtering efficiency of the filter 4 due to long-term use; and through the assembly and disassembly component 5, the filter 4 can be combined with the lower side of the inner groove of the top cover 3 during the installation and disassembly process, and the top cover 3 and the filter 4 can be operated at the same time, which is very convenient to operate and simple to maintain.

[0028] In one embodiment, the assembly 5 includes two symmetrical side clamps 51, each of which has a spring-loaded side frame 52 mounted on its outer surface, secured to the inner wall of the top cover 3. This design, by welding the spring side frames 52 to both ends of the inner wall of the top cover 3 and welding the mounting side clamps 51 to the other end of the spring formed on the spring side frames 52, allows the filter 4 to be secured to the underside of the inner wall of the top cover 3 before installation or removal, thanks to the elastic expansion and contraction of the spring, thereby achieving a simultaneous operation.

[0029] It should be noted that the side clamping plate 51 is placed on the top surface of the top cover 3 as a horizontal one-piece molded shield, which can close the operating openings on both sides of the top cover 3 for convenient loading and unloading components 5, thereby preventing a large amount of external unclean air from entering the main unit 1 through the operating openings.

[0030] In one embodiment, a guide plate 53 is vertically mounted on the upper side of the spring side frame 52 and on the exterior surface of the side clamping plate 51. A guide slot 54 for sliding therethrough is disposed on the exterior of the guide plate 53 and at the corresponding end on the top cover 3. This design allows the guide plate 53 to move horizontally within the guide slot 54, welded to the exterior surface of the side clamping plate 51, and machined into the corresponding end on the mainframe 1. During installation, the guide plate 53 passes through the guide slot 54 and engages with the corresponding slot 6 on the inner wall of the mainframe 1, thereby securing the top cover 3 to the top opening of the mainframe 1.

[0031] In one embodiment, the filter screen 4 is provided with assembly grooves 41 on both sides of the lower portion. This design facilitates the support and fixing of the filter screen 4 on the lower side of the inner groove of the top cover 3 by turning the two assembly grooves 41 on both sides of the lower portion of the filter screen 4.

[0032] In one embodiment, the inner surface of the side clamping plate 51 is provided with an assembly block 511 that mates with the assembly groove 41. This design provides a support force to secure the filter screen 4 to the lower side of the inner groove of the top cover 3 when the assembly block 511 is assembled with the assembly groove 41.

[0033] In one embodiment, a ventilation mesh plate 31 is provided just above the filter screen 4 and on the end surface of the top cover 3. In this design, the ventilation function of the device can be achieved by welding the ventilation mesh plate 31 in the groove machined by the top cover 3.

[0034] In one embodiment, the outer end of the guide plate 53 is provided with a slot 6 on the inner wall of the mainframe 1. This design allows the slot 6, machined on the inner wall of the mainframe 1, to be plugged into and assembled with the outer end of the guide plate 53, thereby enabling the top cover 3 to be installed in the top opening of the mainframe 1.

[0035] In one embodiment, both the top cover 3 and the guide plate 53 are provided with fixing screw holes 55 for securing and locking. This design allows the fixing screw holes 55 to be machined through both the top cover 3 and the guide plate 53 by turning. After the top cover 3 is installed, screws can be inserted into the corresponding fixing screw holes 55 to securely connect the top cover 3 to the mainframe 1.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A pre-cleaning filter for a clean workbench, comprising a main unit (1), wherein a fan device (2) is provided above the interior of the main unit (1), and characterized in that: A top cover (3) is detachably provided on the top of the main unit (1), and a filter screen (4) for primary filtration is provided between the top cover (3) and the fan device (2); A mounting and dismounting assembly (5) is provided on the top cover (3) and is used to assemble the filter screen (4), install it in the inner groove of the top cover (3), and place the filter screen (4) on the air inlet surface of the fan device (2).

2. A pre-cleaning filter for a clean bench according to claim 1, characterized in that: The assembly and disassembly assembly (5) comprises two symmetrical side clamps (51) on both sides, and the outer surfaces of the side clamps (51) are provided with spring side frames (52) fixed to the inner groove wall of the top cover (3).

3. A pre-cleaning filter for a clean bench according to claim 2, characterized in that: A guide plate (53) is vertically provided on the upper side of the spring side frame (52) and on the outer facade of the side clamping plate (51), and a guide groove (54) for penetrating and sliding is provided on the outside of the guide plate (53) and at the corresponding end on the top cover (3).

4. A pre-cleaning filter for a clean bench according to claim 2, characterized in that: The lower parts of both sides of the filter screen (4) are provided with assembly grooves (41).

5. A pre-cleaning filter for a clean bench according to claim 4, characterized in that: An inner vertical surface of the side clamping plate (51) is provided with an assembly block (511) that matches the assembly groove (41).

6. The pre-cleaning filter for a clean bench according to claim 1, characterized in that: A ventilation mesh plate (31) is provided directly above the filter screen (4) and on the end surface of the top cover (3).

7. The pre-cleaning filter for a clean bench according to claim 3, characterized in that: A slot (6) for matching is provided at the outer end of the guide plate (53) and on the inner wall of the main platform (1).

8. The pre-cleaning filter for a clean bench according to claim 3, characterized in that: The top cover (3) and the guide plate (53) are both provided with fixing screw holes (55) for fixing and locking.

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