Baking varnish outer frame type primary filter

Abstract

The utility model discloses a stoving varnish outer frame type primary filter, which belongs to the field of filter devices and comprises a stoving varnish outer frame, a W-shaped wrinkled filter element, a filter screen, a base and a plurality of support rods, the inner walls of four sides of the stoving varnish outer frame are concave inwards, and the W-shaped wrinkled filter element, the filter screen and the base are arranged in the stoving varnish outer frame; longitudinal grooves are formed in the supporting rods in the length direction, and the W-shaped wrinkled filter element is simultaneously inserted into all the supporting rods through the longitudinal grooves of the supporting rods; the problems that the two sides of the wrinkles of the W-shaped wrinkled filter paper are easily separated from the outer frame due to long-time wind pressure influence, so that part of air flows out through gaps at the separation parts, and the filtering precision is influenced are solved.

Description

Technical Field

[0001] The utility model relates to a filtering device, in particular to a baking varnish outer frame type primary filter. Background Art

[0002] At present, most filters with W-shaped pleated filter paper use adhesive to fix the two sides of the W-shaped pleated filter paper on the two inner walls of the outer frame, while the other two sides are not fixed. When the wind pressure is too high, the pleated sides of the W-shaped pleated filter paper are easily separated from the outer frame due to the long-term wind pressure, causing some air to flow out through the gap at the separation point, affecting the filtering accuracy, so it needs to be improved. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a paint-coated outer frame type primary filter to solve the above-mentioned technical problems.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A paint-coated frame type primary filter comprises a paint-coated frame with concave inner walls on four sides, a W-shaped pleated filter element arranged in the paint-coated frame, a filter screen and a base, and a plurality of support rods plugged into the base; the support rods are provided with longitudinal grooves along the length direction, and the W-shaped pleated filter element is inserted into the interior of all support rods at the same time through the longitudinal groove of each support rod.

[0006] By adopting the above technical solution, the W-type pleated filter element can be relatively fixed on the support rod by using the longitudinal groove. When facing high wind pressure, the support rod gives the W-type pleated filter element a certain supporting force to prevent the W-type pleated filter element from deforming and forming gaps, thereby improving the filtering accuracy.

[0007] Preferably, the longitudinal groove is a V-shaped groove, and the V-shaped bend on the side of the W-shaped pleated filter element facing the air outlet is located in the V-shaped groove.

[0008] By adopting the above technical solution, considering that the place on the side of the W-type pleated filter element facing the air outlet is most affected by the wind is the V-shaped bend, the support rod is fixed at the V-shaped bend of the W-type pleated filter element, just like holding the handle of a bag. No matter how strong the wind is, the part behind the V-shaped bend will not be deformed or displaced, thereby achieving a stabilizing effect.

[0009] Preferably, it also includes several sticker layers whose adhesive surfaces are printed with plug-in point indications and can be pasted to the top wall of the base. There are 20 support rods and they are plugged into the base according to the plug-in point indications.

[0010] By adopting the above technical solution, the installer can stick the sticker layer on the base and then tear it off, and the plug-in point indication on the adhesive surface is attached to the base. The plug-in point indication is pre-printed in the early stage of the production process according to the position where the support rod should be inserted, so that subsequent users can insert the support rod into the base according to the plug-in point indication.

[0011] Preferably, the longitudinal groove is a through groove that straightly penetrates the side wall of the support rod, and each middle section of the W-shaped pleated filter element is located in the through groove.

[0012] By adopting the above technical solution, each middle section of the W-shaped pleated filter element refers to the middle section of each plane, and the support rod at each middle section forms a triangular structure together with the V-shaped bend to achieve a stabilizing effect.

[0013] Preferably, the baking varnish outer frame is composed of a top frame, a left side frame, a right side frame and a bottom frame, and the top frame is hinged to the right side frame and detachably connected to the left side frame.

[0014] By adopting the above technical solution, the detachable connection makes it convenient for the installer to install the filter screen and the base from the top of the painted outer frame into the painted outer frame from top to bottom.

[0015] Preferably, two sides of the W-shaped pleated filter element are respectively bonded to the inner walls of the left frame and the right frame by adhesive.

[0016] By adopting the above technical solution, the W-shaped pleated filter element and the left frame and the right frame are further fixed by using viscose, so that the gap on both sides is reduced and the filtering accuracy is improved.

[0017] Preferably, the distance between the support rod closest to the left frame inner wall and the left frame inner wall and the distance between the support rod closest to the right frame inner wall and the right frame inner wall are both half of the minimum pleat cycle width of the W-type pleated filter element.

[0018] By adopting the above technical solution, the W-type pleated filter element can be regarded as formed by seamlessly connecting a number of V-type filter elements, and this V-type filter element is the minimum pleating cycle of the W-type pleated filter element; because the two sides of the W-type pleated filter element need to be glued to the inner walls of the left frame and the right frame, it is necessary to ensure that the two sides of the W-type pleated filter element are a plane.

[0019] Preferably, fixed columns are provided on both sides of the filter screen, and partition strips are integrally connected to the left and right walls along the length direction to separate the filter screen slot for sliding connection of the fixed columns and the filter element slot for sliding connection of the base.

[0020] By adopting the above technical solution, the fixing columns are used to provide support force to both ends of the filter, making it convenient for the installer to install the filter from top to bottom into the filter slot.

[0021] Preferably, the base is made of foam material, and a foam strip is provided in the top frame.

[0022] By adopting the above technical solution, the base made of foam material is convenient for the installer to insert the support rod into the base without using other tools; the foam strip of the top frame can seal the gap between the W-shaped pleated filter element and the top frame.

[0023] The beneficial effects of the utility model are:

[0024] 1. The longitudinal groove can be used to relatively fix the W-type pleated filter element on the support rod. When facing strong wind pressure, the support rod gives the W-type pleated filter element a certain support force to prevent the W-type pleated filter element from deforming and forming gaps, thereby improving the filtering accuracy;

[0025] 2. The utility model provides the first longitudinal groove - V-shaped groove. The place on the side of the W-shaped pleated filter element facing the air outlet that is most affected by the wind is the V-shaped bend. Therefore, the support rod is fixed at the V-shaped bend of the W-shaped pleated filter element, just like holding the handle of a bag. No matter how strong the wind is, the rear part of the V-shaped bend will not be deformed or displaced, thereby achieving a stable effect;

[0026] 3. The utility model provides a second longitudinal groove - a through groove. Each middle section of the W-shaped pleated filter element refers to the middle section of each plane. The support rod at each middle section forms a triangular structure together with the V-shaped bending part to achieve a stabilizing effect.

[0027] 4. Use adhesive to further fix the W-shaped pleated filter element to the left and right frames to reduce the gap on both sides and improve the filtering accuracy;

[0028] 5. The foam base allows installers to insert the support rod into the base without using other tools; the foam strips on the top frame can seal the gap between the W-shaped pleated filter element and the top frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The utility model is further described below in conjunction with the accompanying drawings and embodiments. In order to avoid the filter screen affecting the viewing of other technical features, Figures 2 to 5 The filter is omitted in the figure.

[0030] Figure 1 It is a structural schematic diagram of the utility model;

[0031] Figure 2 It is a structural schematic diagram of Example 1;

[0032] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0033] Figure 4 It is a structural schematic diagram of Example 2;

[0034] Figure 5 for Figure 4 A partial enlarged view of point B in the middle.

[0035] The descriptions of the reference numerals in the figures are as follows:

[0036] 1. Painted outer frame; 101. Top frame; 102. Left frame; 103. Right frame; 104. Bottom frame;

[0037] 2. W-type pleated filter element;

[0038] 301, filter screen; 302, fixing column;

[0039] 4. base; 401. support rod;

[0040] 5. Partition strip; 501. Filter element slot; 502. Filter screen slot;

[0041] 6. Viscose;

[0042] 7. V-groove;

[0043] 8. Through groove. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0045] A paint-coated outer frame type primary filter, such as Figures 1 to 5 As shown, there is a paint outer frame 1 with concave inner walls on four sides, a W-shaped pleated filter element 2 arranged in the paint outer frame 1, a filter screen 301 and a base 4.

[0046] The paint outer frame 1 is composed of a top frame 101, a left side frame 102, a right side frame 103 and a bottom frame 104. The top frame 101 is hinged with the right side frame 103 and is detachably connected with the left side frame 102. The detachable connection can be fixed by screws or by buckles. The detachable connection facilitates the installer to install the filter 301 and the base 4 from the top of the paint outer frame 1 to the inside of the paint outer frame 1 from top to bottom.

[0047] In order to fix the W-shaped pleated filter element 2 and improve the filtering accuracy, the utility model further includes a plurality of support rods 401 plugged into the base 4. The support rods 401 are provided with longitudinal grooves along the length direction. The W-shaped pleated filter element 2 is inserted into the interior of all the support rods 401 at the same time through the longitudinal grooves of each support rod 401. The V-shaped groove 7 and the through groove 8 are both longitudinal grooves.

[0048] The longitudinal grooves can be used to relatively fix the W-shaped pleated filter element 2 in the support rod 401. When facing strong wind pressure, the support rod 401 provides a certain supporting force to the W-shaped pleated filter element 2 to prevent the W-shaped pleated filter element 2 from deforming and forming gaps, thereby improving the filtering accuracy.

[0049] Fixed columns 302 are provided on both sides of the filter 301, and partition bars 5 are integrally connected along the length direction of the left and right walls to separate the filter slot 502 for sliding connection of the fixed columns 302 and the filter element slot 501 for sliding connection of the base 4. The fixed columns 302 are used to provide support force at both ends of the filter 301, so that the installer can install the filter 301 from top to bottom into the filter slot 502.

[0050] The base 4 is made of foam material, and a foam strip is provided in the top frame 101. The base 4 made of foam material is convenient for the installer to insert the support rod 401 into the base 4 without using other tools; the foam strip of the top frame 101 can seal the gap between the W-shaped pleated filter element 2 and the top frame 101.

[0051] The two sides of the W-shaped pleated filter element 2 are respectively bonded to the inner walls of the left frame 102 and the right frame 103 by adhesive 6. The adhesive 6 is used to further fix the W-shaped pleated filter element 2 to the left frame 102 and the right frame 103, thereby reducing the gap between the two sides and improving the filtering accuracy.

[0052] The utility model provides two types of support rods 401 with longitudinal grooves of different shapes, both of which can enhance the fixing effect of the W-shaped pleated filter paper and improve the filtering accuracy.

[0053] Example 1

[0054] In this embodiment, the longitudinal groove formed on the support rod 401 is a V-shaped groove 7, and the V-shaped bend of the W-shaped pleated filter element 2 facing the air outlet is located in the V-shaped groove 7. Considering that the V-shaped bend is the place where the wind is most affected on the side of the W-shaped pleated filter element 2 facing the air outlet, the support rod 401 is fixed to the V-shaped bend of the W-shaped pleated filter element 2, just like holding the handle of a bag, so that no matter how strong the wind is, the rear part of the V-shaped bend will not be deformed or displaced, thereby achieving a stable effect.

[0055] In this embodiment, the distance between the support rod 401 closest to the inner wall of the left frame 102 and the inner wall of the left frame 102, and the distance between the support rod 401 closest to the inner wall of the right frame 103 and the inner wall of the right frame 103 are both half of the minimum pleat cycle width of the W-type pleated filter element 2. The W-type pleated filter element 2 can be regarded as being formed by seamlessly connecting a number of V-type filter elements, and this V-type filter element is the minimum pleat cycle of the W-type pleated filter element 2; because the two sides of the W-type pleated filter element 2 need to be glued to the inner walls of the left frame 102 and the right frame 103 by using adhesive 6, it is necessary to ensure that the two sides of the W-type pleated filter element 2 are a plane.

[0056] It also includes several sticker layers (not shown) with plug-in point indications printed on the adhesive surface and can be pasted to the top wall of the base 4. There are 20 support rods 401 and they are plugged into the base 4 according to the plug-in point indications. The installer can stick the sticker layer on the base 4 and then tear it off. The plug-in point indications on the adhesive surface are attached to the base 4. The plug-in point indications are pre-printed in the early stage of the production process according to the position where the support rod 401 should be inserted, so that subsequent users can plug the support rod 401 into the base 4 according to the plug-in point indications.

[0057] Example 2

[0058] In this embodiment, the longitudinal groove formed in the support rod 401 is a through groove 8 that straightly penetrates the side wall of the support rod 401, and each middle section of the W-shaped pleated filter element 2 is located in the through groove 8. Each middle section of the W-shaped pleated filter element 2 refers to the middle section of each plane, and the support rod 401 at each middle section forms a triangular structure together with the V-shaped bending part to achieve a stabilizing effect.

[0059] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A paint-coated frame type primary filter, characterized in that: It comprises a baking varnish outer frame (1) with concave inner walls on four sides, a W-shaped pleated filter element (2) arranged in the baking varnish outer frame (1), a filter screen (301) and a base (4), and a plurality of support rods plugged into the base (4); the support rods are provided with longitudinal grooves along the length direction, and the W-shaped pleated filter element (2) is inserted into the interior of all the support rods at the same time through the longitudinal grooves of each support rod.

2. The paint-coated outer frame type primary filter according to claim 1, characterized in that: The longitudinal groove is a V-shaped groove (7), and the V-shaped bend on the side of the W-shaped pleated filter element (2) facing the air outlet is located in the V-shaped groove (7).

3. The paint-coated outer frame type primary filter according to claim 2, characterized in that: It also comprises a plurality of sticker layers, the adhesive surfaces of which are printed with plug-in point indications and can be attached to the top wall of the base (4); 20 support rods are provided and are plugged into the base (4) according to the plug-in point indications.

4. The paint-coated outer frame type primary filter according to claim 1, characterized in that: The longitudinal groove is a through groove (8) that straightly penetrates the side wall of the support rod, and each middle section of the W-shaped pleated filter element (2) is located in the through groove (8).

5. The paint-coated outer frame type primary filter according to claim 1, characterized in that: The baking varnish outer frame (1) is composed of a top frame (101), a left side frame (102), a right side frame (103) and a bottom frame (104); the top frame (101) is hinged to the right side frame (103) and is detachably connected to the left side frame (102).

6. The paint-coated outer frame type primary filter according to claim 5, characterized in that: The two sides of the W-shaped pleated filter element (2) are respectively bonded to the inner walls of the left frame (102) and the right frame (103) by means of adhesive (6).

7. The paint-coated outer frame type primary filter according to claim 5, characterized in that: The distance between the support rod closest to the inner wall of the left frame (102) and the inner wall of the left frame (102) and the distance between the support rod closest to the inner wall of the right frame (103) and the inner wall of the right frame (103) are both half of the minimum pleat cycle width of the W-shaped pleated filter element (2).

8. The paint-coated outer frame type primary filter according to claim 5, characterized in that: Fixed columns (302) are provided on both sides of the filter screen (301), and partition bars (5) are integrally connected to the left and right walls along the length direction to separate a filter screen slot (502) for sliding connection with the fixed columns (302) and a filter element slot (501) for sliding connection with the base (4).

9. The paint-coated outer frame type primary filter according to claim 5, characterized in that: The base (4) is made of foam material, and a foam strip is provided inside the top frame (101).

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