A pressure edge frame device for filter element testing

Abstract

The present invention relates to a pressure edge frame device for testing filter elements. The device comprises a frame structure formed by assembling a plurality of square pressure strips. Adjacent square pressure strips are connected by angle fixing plates, bolts, and nuts. Long holes for the bolts to pass through are provided in the middle of the square pressure strips. The bolts pass through the long holes of the square pressure strips and are connected to the nuts and can be adjusted in position to change the size and shape of the pressure edge frame device. Compared with the prior art, the device adjusts the size by adjusting the position of the bolts and nuts along the long holes of the square pressure strips. This avoids the need for pressure plates of different sizes to be configured for filter elements of different sizes during testing, resulting in a large number of pressure plate specifications, high costs, and complex processing. By providing beveled pressure strips and adjusting the positions of the bolts and nuts, the shape can be adjusted. The device is suitable for performance testing of quadrilateral, non-square, or polygonal flat-plate air filter elements for automobiles, and solves the problem of long tooling preparation cycles for filter element verification.

Description

Technical Field

[0001] The invention relates to a frame device, in particular to a pressure edge frame device for testing a filter element. Background Art

[0002] Due to the wide variety of car models, the specifications and shapes of automobile air filter elements are also diverse, which brings trouble to the testing of air filter elements. Filter elements of different specifications need to be configured and processed with pressure plates of different specifications, resulting in multiple pressure plate specifications, high costs, and complex processing. When testing air filter elements, a variety of different tooling is required for clamping, resulting in long tooling preparation cycles and other problems. Filter manufacturers hope that the tooling for filter element verification should not only be suitable for multiple specifications, but also have a reliable and stable cooperation relationship to ensure that the test can be carried out quickly and smoothly. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems and provide a size-adjustable edge pressing frame device suitable for air filter elements of various specifications.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A pressure edge frame device for testing filter elements. The frame device is a frame structure formed by assembling multiple square pressure strips. Adjacent square pressure strips are connected by angle fixing plates, bolts and nuts. Long holes are provided in the middle of the square pressure strips for the bolts to pass through. The bolts pass through the long holes in the square pressure strips and are connected to the nuts and can be adjusted in position to change the size and shape of the pressure edge frame device.

[0006] Furthermore, the square bead is obtained by cutting a long square aluminum alloy profile into two parts to form a square bead with a long groove, and the nut is arranged in the long groove of the square bead and moves along the long groove.

[0007] Furthermore, the corner fixing plate is a long strip plate, and is provided with bolt holes for bolts to pass through. The two ends of the corner fixing plate are respectively overlapped on the adjacent square pressure strips and fixedly connected.

[0008] Furthermore, the edge pressing frame device is provided with a bevel pressing strip, which is arranged on the corner of the edge pressing frame device, and the two ends of the bevel pressing strip are fixedly connected to two adjacent square pressing strips through bevel fixing plates.

[0009] Furthermore, a long hole for the bolt to pass through is provided in the middle of the bevel strip, and the bevel fixing plate is connected to the bevel strip and the square strip by bolts and nuts.

[0010] Furthermore, the beveled edge strip is obtained by cutting a long square aluminum alloy profile into two.

[0011] When the present invention is used, the edge pressing frame device is adjusted according to the shape and size of the filter element so that the edge pressing frame device matches the filter element to be edge pressed, the flat filter element sealing surface is placed on the bottom plate, and the edge pressing frame device is placed on the upper end of the filter element sealing surface. The external force generated by other external devices presses the filter element sealing body against the bottom plate, thereby playing the role of sealing the filter element.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] 1. The size is adjustable. By adjusting the position of the bolts and nuts along the long holes of the square pressure strips, the size of the pressure frame device can be adjusted. After the size of the sealing frame of the quadrilateral filter element to be tested is matched, the pressure frame of the filter element can be obtained by tightening the four-side adjusting screws. The adjustment is convenient and avoids the need to configure different sizes of pressure plates for different sizes of filter elements during the test, resulting in multiple pressure plate specifications, high costs, and complex processing.

[0014] 2. The shape is adjustable. By setting the bevel pressure strips and adjusting the positions of the bolts and nuts, the shape of the pressure frame device can be adjusted as needed. It can be adjusted to trapezoidal, pentagonal and other shapes to meet the pressure requirements of filter elements of various specifications. It is suitable for the performance test of quadrilateral, non-square or polygonal flat-plate air filter elements for automobiles. It avoids the need to configure pressure plates of different specifications for filter elements of different specifications during the test, resulting in multiple pressure plate specifications, high costs, and complex processing, and solves the problem of long tooling preparation cycle for filter element verification.

[0015] 3. This edge pressing frame device has a simple structure, is quick to replace, and is easy to implement. The edge pressing frame is made of aluminum profiles and standard parts, with low manufacturing cost and stable quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 for Figure 1 AA cross-sectional view;

[0018] Figure 3 These are the shapes of several common filter element sealing surfaces;

[0019] Figure 4 This is a schematic diagram of the assembly of the edge pressing frame device and the filter element;

[0020] In the figure: 1-square pressure strip; 2-corner fixing plate; 3-bolt; 4-bevel pressure strip; 5-bevel fixing plate; 6-nut; a-pressure frame device; b-flat plate; c-filter element; d-filter element sealing surface. DETAILED DESCRIPTION

[0021] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1

[0023] A pressure frame device for testing filter elements, such as Figure 1 、 2 As shown, the frame device is a frame structure formed by assembling multiple square strips 1. Adjacent square strips 1 are connected by angle fixing plates 2, bolts 3 and nuts 6. A long hole is provided in the middle of the square strips 1 for the bolts 3 to pass through. The bolts 3 pass through the long hole of the square strips 1 and are connected to the nuts 6 and can be adjusted in position to change the size and shape of the edge pressing frame device a. The square beading 1 and the bevel beading 4 are obtained by cutting a long square aluminum alloy profile into two parts to form a square beading 1 with a long groove. The nut 6 is arranged in the long groove of the square beading 1 and moves along the long groove. The corner fixing plate 2 is a long strip of sheet metal. The corner fixing plate 2 is provided with a bolt 3 hole for the bolt 3 to pass through. The two ends of the corner fixing plate 2 are respectively overlapped on the adjacent square beadings 1 and fixedly connected. The pressure edge frame device a is provided with a bevel beading 4, and the bevel beading 4 is arranged on the corner of the pressure edge frame device a. The two ends of the bevel beading 4 are respectively fixedly connected to the two adjacent square beadings 1 through the bevel fixing plate 5. A long strip hole for the bolt 3 to pass through is provided in the middle of the bevel beading 4. The bevel fixing plate 5 is connected to the bevel beading 4 and the square beading 1 by bolts 3 and nuts 6.

[0024] like Figure 3 、 4 As shown, the adjustable pressure edge frame device a is adjusted according to the specifications of the filter element c, one end of the filter element sealing surface d is placed on the flat plate b, and the pressure edge frame device a is placed on the upper end of the filter element sealing surface d. Through the action of the flat plate b, the filter element sealing surface d is pressurized, which plays the role of fixing the filter element.

Claims

1. A pressure edge frame device for filter element testing, characterized in that: The frame device is a frame structure formed by assembling a plurality of square battens (1), wherein adjacent square battens (1) are connected via angle fixing plates (2) and bolts (3) and nuts (6); The square pressure strip (1) is provided with a long hole in the middle thereof for the bolt (3) to pass through. The bolt (3) passes through the long hole of the square pressure strip (1) and is connected to the nut (6) and can be adjusted in position to change the size and shape of the edge pressing frame device (a); The corner fixing plate (2) is a long strip plate, and is provided with a bolt hole for the bolt (3) to pass through. The two ends of the corner fixing plate (2) are respectively overlapped on the adjacent square pressure strips (1) and fixedly connected. The edge pressing frame device (a) is provided with a bevel pressing strip (4), and the bevel pressing strip (4) is provided on a corner of the edge pressing frame device (a), and both ends of the bevel pressing strip (4) are connected to two adjacent square pressing strips (1) through a bevel fixing plate (5); The edge pressing frame device (a) is suitable for performance testing of polygonal flat-plate air filter elements for automobiles.

2. A pressure edge frame device for filter element testing according to claim 1, characterized in that: The square bead (1) is obtained by cutting a long square aluminum alloy profile into two parts to form a square bead (1) with a long groove. The nut (6) is arranged in the long groove of the square bead (1) and moves along the long groove.

3. The edge pressing frame device for filter element testing according to claim 1, characterized in that: The bevel strip (4) is provided with a long hole in the middle thereof for the bolt (3) to pass through, and the bevel fixing plate (5) is connected to the bevel strip (4) and the square strip (1) via bolts (3) and nuts (6).

4. The edge pressing frame device for filter element testing according to claim 1, characterized in that: The beveled edge strip (4) is obtained by cutting a long square aluminum alloy profile into two.

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