Anti-maloperation air filter

Abstract

The utility model relates to an anti-maloperation air filter which comprises a filter body, a connecting seat is fixed at the bottom end of the filter body, screw holes for mounting bolts are uniformly formed in the connecting seat, a circle of arc-shaped groove is formed in the outer side wall of the head of each bolt in a surrounding manner, and a circular ring corresponding to the arc-shaped groove sleeves the filter body. The filter body is further sequentially sleeved with an inner gear ring and a fixing ring from bottom to top, the inner gear ring and the fixing ring are located above the bolt, a gear column corresponding to the bolt is arranged in an opening of the inner gear ring, and the gear column and the inner gear ring are arranged in a meshed mode. The top end of the gear column is fixed to the side wall of the fixing ring through a bearing, a limiting block located below the inner gear ring is arranged at the bottom end of the gear column, a protruding block is arranged at the bottom end of the limiting block, and a groove for containing the protruding block is formed in the head of the bolt. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] The present invention relates to the field of air filters, in particular to an air filter capable of preventing misoperation. Background Art

[0002] An air filter is a type of filter, also known as an air filter cartridge, air filter element, or style. It is mainly used for air filtration in engineering locomotives, automobiles, agricultural locomotives, laboratories, sterile operating rooms, and various precision operating rooms. Currently, existing air filters are particularly troublesome to install, especially air filters fixed by flanges. When installing or removing them, multiple bolts need to be tightened or unscrewed, resulting in slow work efficiency. At the same time, it is easy to accidentally move a bolt during use, which can cause the filter to separate from the equipment after a long time, resulting in insufficient stability between the two, and in severe cases, the bolt may fall off. Summary of the Invention

[0003] The purpose of the present invention is to provide an air filter that can prevent malfunction.

[0004] The technical problems of the present invention are mainly solved by the following technical solutions:

[0005] An air filter for preventing misoperation includes a filter body with a connecting seat fixed at the bottom end, wherein screw holes for mounting bolts are evenly arranged on the connecting seat:

[0006] The outer wall of the bolt head is surrounded by a circle of arc grooves, wherein a circular ring corresponding to the arc groove is provided on the filter body, and the outer wall of the circular ring extends into the corresponding arc groove, and the filter body is also provided with an inner gear ring and a fixing ring located above the bolt in sequence from bottom to top, wherein a gear column corresponding to the bolt is provided in the opening of the inner gear ring, and the gear column is meshed with the inner gear ring, wherein the top of the gear column is fixed to the side wall of the fixing ring through a bearing, and the bottom end of the gear column is provided with a limit block located below the inner gear ring, and the bottom end of the limit block is provided with a protrusion, wherein the bolt head is provided with a groove for accommodating the protrusion.

[0007] Preferably, the size of the bump is adapted to the size of the groove, wherein a magnetic connection layer is provided on the surface of the bump, and the cross section of the bump is a polygonal structure.

[0008] Preferably, a handle is radially provided on the outer side wall of the inner gear ring, wherein a screw is provided at one end of the handle, and a mounting hole threadedly connected to the screw is provided on the outer side wall of the inner gear ring.

[0009] Preferably, one end of the limit block extends to just below the side wall of the inner gear ring.

[0010] Preferably, a pressure rod is radially provided on the outer side wall of the fixing ring.

[0011] Preferably, the cross section of the bolt head is a circular structure.

[0012] The beneficial effect of the present invention is that the present invention exerts a downward extrusion force on the bolts and the connecting seat through the fixing ring, so that the connecting seat and the filter body are tightly attached to the flange, and at the same time, the multiple sets of gear columns are driven to rotate by rotating the inner gear ring, thereby indirectly exerting a downward rotational driving force on the multiple sets of bolts, so that the bolts lock and fix the connecting seat on the flange. When the connecting seat and the filter body are installed, the fixing ring, the inner gear ring, the protrusion and other components are removed from the filter body. If even a group of bolts is misoperated at this time, the circular ring will also press against the arc groove to prevent the bolt from slipping out of the screw hole and the thread groove. Only when all the bolts are operated at the same time by using the above-mentioned device, that is, the mechanism composed of the fixing ring, the inner gear ring and the protrusion and other components, can the bolts be smoothly separated from the thread groove and the screw hole, thereby effectively ensuring the locking and fixing effect of the bolts on the connecting seat, and preventing the installation stability of the connecting seat and its own stability from being affected after the bolts are misoperated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 is a cross-sectional view of the present invention;

[0015] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0016] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0017] In the figure: 1. filter body, 2. connecting seat, 3. bolt, 4. arc groove, 5. circular ring, 6. inner gear ring, 7. fixing ring, 8. gear column, 9. bearing, 10. limit block, 11. protrusion, 12. groove, 13. handle. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0019] An air filter with an anti-malfunction function includes a filter body 1 with a connecting seat 2 fixed at the bottom end, wherein the connecting seat 2 is evenly provided with screw holes for mounting bolts 3, and the cross-section of the head of the bolt 3 is a circular structure:

[0020] A circle of arc groove 4 is provided around the outer wall of the head of the bolt 3, wherein a circular ring 5 corresponding to the arc groove 4 is provided on the outer sleeve of the filter body 1, and the outer wall of the circular ring 5 extends into the corresponding arc groove 4, and the filter body 1 is also provided with an inner gear ring 6 and a fixing ring 7 located above the bolt 3 in sequence from bottom to top, wherein a gear column 8 corresponding to the bolt 3 is provided in the opening of the inner gear ring 6, and the gear column 8 is meshed with the inner gear ring 6, wherein the top of the gear column 8 is fixed to the side wall of the fixing ring 7 by a bearing 9, and the bottom end of the gear column 8 is provided with a limit block 10 located below the inner gear ring 6, and one end of the limit block 10 extends to just below the side wall of the inner gear ring 6, and the bottom end of the limit block 10 is provided with a protrusion 11, wherein the head of the bolt 3 is provided with a groove 12 for accommodating the protrusion 11.

[0021] In this embodiment, the size of the bump 11 is adapted to the size of the groove 12 , wherein a magnetic connection layer is provided on the surface of the bump 11 , and the cross section of the bump 11 is a polygonal structure.

[0022] In this embodiment, a handle 13 is radially provided on the outer wall of the inner gear ring 6 , wherein a screw is provided at one end of the handle 13 , and a mounting hole for threaded connection with the screw is provided on the outer wall of the inner gear ring 6 .

[0023] In this embodiment, a pressure rod is radially arranged on the outer side wall of the fixing ring 7 .

[0024] like Figure 1 、 2 As shown in Figures 3 and 4, during installation, the fixing ring 7 is squeezed so that it passes through the bearing 6, the gear column 8 and the protrusion 11 to squeeze the bolt 3, so that the bottom end is first embedded in the threaded groove on the flange at the specified position, so that the connecting seat 2 is tightly attached to the flange, so as to facilitate the subsequent installation of the connecting seat 2. Then, the inner gear ring 6 is rotated by the handle 13, and the top ends of the multiple groups of gear columns 8 are simultaneously driven to rotate in the bearing 9, and the bottom ends are rotated in the groove 12 through the protrusion 11, thereby driving the bolt 3 to rotate in the screw hole and the threaded groove of the flange, thereby locking the mounting seat 2 on the flange through the bolt 3;

[0025] During the above process, the fixing ring 7 exerts a downward squeezing force on the bolts 3 and the connecting seat 2, so that the connecting seat 2 and the filter body 1 are tightly attached to the flange and the protrusion 11 is prevented from sliding out of the groove 12. At the same time, by rotating the internal gear ring 6 and driving the multiple sets of gear columns 8 to rotate, a downward rotational driving force is indirectly exerted on the multiple sets of bolts 3, so that the bolts 3 lock and fix the connecting seat 2 on the flange. At the same time, when the bolts 3 are spirally moved downward, the arc groove 4 is driven to rotate on the ring 5, thereby driving the ring 5 to move downward.

[0026] After the connection base 2 and the filter body 1 are installed, the fixing ring 7, the inner gear ring 6, the protrusion 11 and other components are removed from the filter body 1. If even a group of bolts 3 is misoperated at this time, the circular ring 5 will press against the arc groove 4 to prevent the bolt 3 from slipping out of the screw hole and the thread groove. Only when all the bolts 3 are operated at the same time using the above-mentioned device, i.e., the mechanism composed of the fixing ring 7, the inner gear ring 6 and the protrusion 11 and other components, can the bolts 3 be smoothly separated from the thread groove and the screw hole, thereby effectively ensuring the locking and fixing effect of the bolts 3 on the connection base 2, and preventing the installation stability of the connection base 2 and its own stability from being affected after the bolts 3 are misoperated.

[0027] The present invention has been described in detail above, but the contents described are only preferred embodiments of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An air filter with an anti-malfunction function, comprising a filter body with a connecting seat fixed at the bottom end, wherein screw holes for mounting bolts are evenly arranged on the connecting seat, characterized in that: The outer wall of the bolt head is surrounded by a circle of arc grooves, wherein a circular ring corresponding to the arc groove is provided on the filter body, and the outer wall of the circular ring extends into the corresponding arc groove, and the filter body is also provided with an inner gear ring and a fixing ring located above the bolt in sequence from bottom to top, wherein a gear column corresponding to the bolt is provided in the opening of the inner gear ring, and the gear column is meshed with the inner gear ring, wherein the top of the gear column is fixed to the side wall of the fixing ring through a bearing, and the bottom end of the gear column is provided with a limit block located below the inner gear ring, and the bottom end of the limit block is provided with a protrusion, wherein the bolt head is provided with a groove for accommodating the protrusion.

2. The air filter according to claim 1, wherein: The size of the bump is adapted to the size of the groove, wherein a magnetic connection layer is provided on the surface of the bump, and the cross section of the bump is a polygonal structure.

3. The air filter with anti-malfunction function according to claim 1, characterized in that: A handle is radially arranged on the outer side wall of the inner gear ring, wherein a screw is arranged at one end of the handle, and a mounting hole threadedly connected to the screw is arranged on the outer side wall of the inner gear ring.

4. The air filter for preventing malfunction according to claim 1, characterized in that: One end of the limit block extends to a position directly below the side wall of the inner gear ring.

5. The air filter for preventing malfunction according to claim 1, characterized in that: A pressure rod is radially arranged on the outer side wall of the fixing ring.

6. The air filter for preventing malfunction according to claim 1, characterized in that: The cross section of the bolt head is a circular structure.

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