Quick replacement structure for filter screen of high-efficiency filter

Abstract

The utility model discloses an efficient filter screen quick replacement structure which comprises a static pressure box and further comprises a filtering mechanism, the filtering mechanism is arranged in the static pressure box, and the filtering mechanism comprises a flow diffusing cover, a filter element, a flow diffusing hole, a mounting hole, a fastening bolt, a screw hole and an adjusting bolt. A flow diffusing cover is clamped to the bottom of the static pressure box, flow diffusing holes are formed in the surface of the flow diffusing cover, the flow diffusing cover and the static pressure box are fixed together through fastening bolts, then adjusting bolts are screwed down along screw holes in the flow diffusing cover, the ends of the adjusting bolts abut against a filter element, the installation position of the filter element is limited, and installation of the filter element structure is completed. During the dismounting operation, the flow diffusing cover can be dismounted and the filter element can be taken out only by screwing out the adjusting bolt and then screwing out the fastening bolt, operation in the static pressure box is not needed, and the convenience of the filter element replacement operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-efficiency filters, in particular to a high-efficiency filter screen quick-replacement structure. Background Art

[0002] A high-efficiency filter generally refers to a filter with a capture efficiency of more than 99.97% for particles with a size greater than or equal to 0.3um. It is usually used as a terminal filtration device in pharmaceutical companies, food companies, clean workshops, high-standard laboratories and other places to provide clean air and is widely used.

[0003] The existing high-efficiency filters have the following disadvantages when used: the internal filter element structure of the high-efficiency filter needs to be replaced after a period of use. The existing filter element is generally fixed by fasteners set inside the static pressure box. Therefore, when replacing the filter element, it is necessary to first disassemble the diffuser cover and then remove the fasteners inside the static pressure box. The replacement process is time-consuming and cumbersome. For places with large-scale use, due to the large number of filters, it takes a lot of time to complete the replacement operation. For this reason, we propose a high-efficiency filter mesh quick replacement structure. Utility Model Content

[0004] The main purpose of the utility model is to provide a high-efficiency filter screen quick replacement structure. By moving the fastening structure to the connection between the diffuser cover and the filter element, the filter element structure can be quickly removed when needed, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A high-efficiency filter screen quick-replacement structure includes a static pressure box and a filter mechanism, wherein the filter mechanism is arranged inside the static pressure box, and the filter mechanism includes a diffuser cover, a filter element, a diffuser hole, a mounting hole, a fastening bolt, a screw hole and an adjusting bolt, the diffuser cover is clamped on the bottom of the static pressure box and the diffuser hole is provided on the surface of the diffuser cover, the filter element is inserted into the static pressure box, the diffuser cover and the corresponding positions inside the static pressure box are provided with mounting holes, and the mounting holes are detachably connected with a fastening bolt, the diffuser cover is provided with a screw hole and an adjusting bolt that is screwed to the surface of the filter element is screwed through the screw hole.

[0007] Furthermore, it also includes an auxiliary mechanism, an auxiliary mechanism is arranged inside the static pressure box, the auxiliary mechanism includes an arc-shaped groove, a sleeve, a connecting rod and an arc-shaped block, the surface of the filter element is provided with an arc-shaped groove, the inner wall of the static pressure box is fixedly connected with a sleeve, and the inside of the sleeve is movably connected with an arc-shaped block that is inserted into the arc-shaped groove through a connecting rod; when installing the filter element structure, it is first inserted into the static pressure box, and after being inserted into place, the arc-shaped block structure located on the inner wall of the static pressure box is just inserted into the arc-shaped groove under the action of the spring, which serves as a pre-fixing structure for the filter element, and the filter element can be adjusted during subsequent tightening. During the dismantling operation, after the fastening structure is removed, the filter element structure will slide down and use the arc-shaped block for auxiliary positioning to prevent it from falling off directly. After removing the diffuser cover, the filter element can be removed by pulling down hard.

[0008] Furthermore, a limiting hole corresponding to the position of the adjusting bolt is opened on one side of the filter element surface, and the end of the adjusting bolt is inserted into the limiting hole; the limiting hole structure is aligned with the position of the end of the adjusting bolt to ensure installation accuracy.

[0009] Furthermore, a concave hole is opened on the surface of the diffuser, and the ends of the fastening bolt and the adjusting bolt are both located inside the concave hole; the concave hole structure plays a retracting and releasing role on the ends of the fastening bolt and the adjusting bolt, preventing them from protruding from the surface of the diffuser.

[0010] Furthermore, a spring is installed inside the sleeve and is connected to the end of the connecting rod through the spring; the spring plays a connecting role and provides elastic force to drive the movement of the arc-shaped clamping block.

[0011] Compared with the prior art, the utility model has the following beneficial effects: a filter element is inserted into the static pressure box. When assembling, the filter element is installed in a suitable position inside the static pressure box and then the diffuser cover is clamped in the bottom of the static pressure box. The diffuser cover and the static pressure box are fixed together with the fastening bolts. Then, the adjusting bolts are tightened along the screw holes inside the diffuser cover so that the ends thereof contact the filter element and limit the installation position, thereby completing the installation of the filter element structure. When disassembling, it is only necessary to first unscrew the adjusting bolts and then unscrew the fastening bolts, and then the diffuser cover can be disassembled and the filter element can be taken out. The operation is carried out inside the static pressure box, which improves the convenience of filter element replacement. When installing the filter element structure, it is first inserted into the static pressure box. After it is inserted into place, the arc-shaped clamping block structure on the inner wall of the static pressure box is just stuck into the arc-shaped groove under the action of the spring, which serves as a pre-fixing structure for the filter element. The filter element can be adjusted during subsequent tightening. During the dismantling operation, after removing the fastening structure, the filter element structure will slide down and use the arc-shaped clamping block for auxiliary positioning to prevent it from falling off directly. After removing the diffuser cover, pull down the filter element hard to take it out. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1This is a schematic diagram of the overall structure of a high-efficiency filter screen quick replacement structure of the utility model.

[0013] Figure 2 This is a schematic diagram of the filter element installation structure of a high-efficiency filter screen quick replacement structure of the utility model.

[0014] Figure 3 This utility model is a high efficiency filter screen quick replacement structure Figure 2 Enlarged structural diagram at point A in the middle.

[0015] In the figure: 1. Static pressure box; 2. Filter mechanism; 201. Diffuser cover; 202. Filter element; 203. Diffuser hole; 204. Mounting hole; 205. Fastening bolt; 206. Screw hole; 207. Adjusting bolt; 208. Limit hole; 209. Concave hole; 3. Auxiliary mechanism; 301. Arc groove; 302. Sleeve; 303. Spring; 304. Connecting rod; 305. Arc block. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0017] like Figure 1-3 As shown, a high-efficiency filter screen quick replacement structure includes a static pressure box 1 and a filter mechanism 2. The filter mechanism 2 is arranged inside the static pressure box 1, and the filter mechanism 2 includes a diffuser 201, a filter element 202, a diffuser hole 203, a mounting hole 204, a fastening bolt 205, a screw hole 206 and an adjusting bolt 207. The diffuser 201 is clamped on the bottom of the static pressure box 1 and the diffuser hole 203 is opened on the surface of the diffuser 201. The filter element 202 is inserted into the static pressure box 1, and the diffuser 201 and the static pressure box 1 are both opened at corresponding positions with mounting holes 204, and the fastening bolts 205 are detachably connected between the mounting holes 204. The diffuser 201 is opened inside and the adjusting bolts 207 that are screwed and connected to the surface of the filter element 202 through the screw holes 206.

[0018] Among them, it also includes an auxiliary mechanism 3, the static pressure box 1 is provided with an auxiliary mechanism 3, the auxiliary mechanism 3 includes an arc groove 301, a sleeve 302, a connecting rod 304 and an arc block 305, the surface of the filter element 202 is provided with an arc groove 301, the inner wall of the static pressure box 1 is fixedly connected with a sleeve 302, and the sleeve 302 is movably connected to the arc block 305 inside the arc groove 301 through the connecting rod 304; when installing the filter element 202 structure, first It is inserted into the static pressure box 1. After being inserted into place, the arc-shaped block 305 structure located on the inner wall of the static pressure box 1 is just stuck into the arc-shaped groove 301 under the action of the spring 303, which serves as a pre-fixing structure for the filter element 202. The filter element 202 can be adjusted during subsequent tightening. During the disassembly operation, when the fastening structure is removed, the filter element 202 structure will slide down and use the arc-shaped block 305 for auxiliary positioning to prevent it from falling off directly. After removing the diffuser 201, pull down the filter element 202 with force to take it out.

[0019] Among them, a limiting hole 208 corresponding to the position of the adjusting bolt 207 is opened on one side of the surface of the filter element 202, and the end of the adjusting bolt 207 is inserted into the limiting hole 208. A recessed hole 209 is opened on the surface of the diffuser 201, and the end of the fastening bolt 205 and the end of the adjusting bolt 207 are both located inside the recessed hole 209; the limiting hole 208 structure is aligned with the position of the end of the adjusting bolt 207 to ensure installation accuracy, and the recessed hole 209 structure plays a retracting and releasing role on the fastening bolt 205 and the end of the adjusting bolt 207 to prevent them from protruding from the surface of the diffuser 201.

[0020] The sleeve 302 is internally installed with a spring 303 and is connected to the end of the connecting rod 304 via the spring 303 ; the spring 303 plays a connecting role and provides elastic force to drive the movement of the arc-shaped clamping block 305 .

[0021] It should be noted that the present invention is a high-efficiency filter screen quick-replacement structure. When in use, a filter element 202 is inserted into the static pressure box 1. During assembly, the filter element 202 is installed to a suitable position inside the static pressure box 1 and then the diffuser 201 is clamped into the bottom of the static pressure box 1. The diffuser 201 and the static pressure box 1 are fixed together with the fastening bolts 205. Then, the adjusting bolts 207 are tightened along the screw holes 206 inside the diffuser 201 so that the ends thereof contact the filter element 202 and limit the installation position. The installation of the filter element 202 structure is completed. During disassembly, it is only necessary to first unscrew the adjusting bolts 207 and then unscrew the fastening bolts 205. The diffuser 201 can be disassembled and The filter element 202 can be taken out without operating inside the static pressure box 1, which improves the convenience of replacing the filter element 202. When installing the filter element 202 structure, it is first inserted into the static pressure box 1. After it is inserted into place, the arc-shaped clamping block 305 structure located on the inner wall of the static pressure box 1 is just stuck into the arc-shaped groove 301 under the action of the spring 303, which serves as a pre-fixing structure for the filter element 202. The filter element 202 can be adjusted during subsequent tightening. During the disassembly operation, after the fastening structure is removed, the filter element 202 structure will slide down and use the arc-shaped clamping block 305 for auxiliary positioning to prevent it from falling off directly. After removing the diffuser 201, the filter element 202 can be taken out by pulling it down hard.

[0022] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A high efficiency filter screen quick replacement structure, comprising a static pressure box (1), characterized in that: The invention also includes a filter mechanism (2), wherein the filter mechanism (2) is arranged inside the static pressure box (1), and the filter mechanism (2) includes a diffuser cover (201), a filter element (202), a diffuser hole (203), a mounting hole (204), a fastening bolt (205), a screw hole (206) and an adjusting bolt (207). The diffuser cover (201) is clamped at the bottom of the static pressure box (1), and the diffuser hole (203) is provided on the surface of the diffuser cover (201). The filter element (202) is inserted into the static pressure box (1), and mounting holes (204) are provided at corresponding positions inside the diffuser cover (201) and the static pressure box (1), and fastening bolts (205) are detachably connected between the mounting holes (204). The diffuser cover (201) is provided with a screw hole (206), and an adjusting bolt (207) is screwed and connected to the surface of the filter element (202) through the screw hole (206).

2. A high efficiency filter screen quick replacement structure according to claim 1, characterized in that: The invention also includes an auxiliary mechanism (3), wherein the static pressure box (1) is provided with the auxiliary mechanism (3), and the auxiliary mechanism (3) includes an arc-shaped groove (301), a sleeve (302), a connecting rod (304) and an arc-shaped clamping block (305). The surface of the filter element (202) is provided with an arc-shaped groove (301), the inner wall of the static pressure box (1) is fixedly connected with the sleeve (302), and the inside of the sleeve (302) is movably connected with the arc-shaped clamping block (305) clamped into the inside of the arc-shaped groove (301) through the connecting rod (304).

3. The high efficiency filter screen quick replacement structure according to claim 1, characterized in that: A limiting hole (208) corresponding to the position of the adjusting bolt (207) is provided on one side of the surface of the filter element (202), and the end of the adjusting bolt (207) is inserted into the limiting hole (208).

4. A high efficiency filter screen quick replacement structure according to claim 1, characterized in that: A concave hole (209) is provided on the surface of the diffuser cover (201), and the ends of the fastening bolt (205) and the adjusting bolt (207) are both located inside the concave hole (209).

5. The high efficiency filter screen quick replacement structure according to claim 2, characterized in that: A spring (303) is installed inside the sleeve (302) and is connected to the end of the connecting rod (304) through the spring (303).

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