Quick-release filter

Abstract

The utility model discloses a quick release type filter which comprises a lower shell, air inlet notches which are symmetrically distributed are formed in the surfaces of the two sides of the lower shell, locking blocks which are symmetrically distributed are fixedly connected to the surfaces of the two sides of the lower shell, elastic blocks are movably connected to the inner walls of the locking blocks in a sleeved mode, and reset springs are fixedly connected to the lower surfaces of the elastic blocks. One end of each reset spring is fixedly connected with the inner bottom wall of the corresponding locking block, a movable groove is formed in the inner wall of one side of each locking block, and the inner wall of each movable groove is movably connected with an extrusion plate in a sleeving mode. And in addition, the device has the effect of stably limiting the mounted filter plate, so that the stable working effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to a quick-detachable filter. Background Art

[0002] In the pharmaceutical industry, in order to ensure the quality and safety of drugs, pharmaceutical companies have extremely high requirements for the cleanliness, temperature and humidity of the production environment pollution inside the workshop. The design of the clean workshop of the pharmaceutical industry has an important impact on the requirements of high-efficiency air filters. For some dust-free pharmaceutical workshops with higher requirements, high-efficiency air filters are needed for filtration. After a period of use, the upper and lower shells of the air filter need to be disassembled to replace the internal filter element. The upper and lower shells of the existing air filter are usually fixed with multiple sets of screws, which is very troublesome to disassemble and reduces the disassembly efficiency.

[0003] For example, the quick-release air filter disclosed in the Chinese patent document (Announcement No.: CN220918545U) realizes the rapid disassembly of the upper and lower shells by rotating the locking sleeve to disengage the screw and separate the upper and lower shells, thereby allowing the partition to be removed to replace the filter screen, thereby improving the disassembly efficiency.

[0004] However, there are still the following shortcomings:

[0005] The disassembly and assembly is performed by rotating the locking sleeve to separate from the screw. Although the use of tools is eliminated compared to the existing fixing method by screws, it is necessary to rotate multiple rotating sleeves to a certain degree in sequence to ensure the stable installation of the upper shell. The whole process is relatively cumbersome, which makes it time-consuming to replace the filter screen, prolongs the downtime of the filter, and thus reduces the filtration efficiency. Utility Model Content

[0006] In response to the defects in the existing technology, the utility model provides a quick-release filter, which facilitates the replacement of the internal filter plate by quickly disassembling and assembling the upper shell and the lower shell. The operation is convenient, the downtime is reduced, and the filtration efficiency is improved. The filter plate can also be stably limited after installation to ensure stable operation.

[0007] The utility model provides a quick-detachable filter, comprising a lower shell, symmetrically distributed air inlet notches are provided on both side surfaces of the lower shell, symmetrically distributed locking blocks are fixedly connected to both side surfaces of the lower shell, an elastic block is movably sleeved on the inner wall of the locking block, a return spring is fixedly connected to the lower surface of the elastic block, one end of the return spring is fixedly connected to the inner bottom wall of the locking block, a movable groove is provided on one inner wall of the locking block, and an extrusion plate is movably sleeved on the inner wall of the movable groove;

[0008] A quick release device is provided on one side surface of the extrusion plate, and the quick release device includes a driving rod, and one end of the driving rod is fixedly connected to the one side surface of the extrusion plate.

[0009] Preferably, the other end of the driving rod passes through and extends to one side surface of the locking block, an insert block is movably inserted into the inner wall of the locking block, one end of the insert block contacts the upper surface of the elastic block, and an installation groove is provided on one side surface of the insert block.

[0010] Preferably, the inner wall of the mounting groove is movably sleeved with a bevel block, one end of the bevel block is movably plugged into the inner wall of the movable groove, one end of the bevel block contacts the other side surface of the extrusion plate, and the other end of the bevel block is fixedly connected to a first support spring.

[0011] Preferably, one end of the first support spring is fixedly connected to the inner wall of one side of the mounting groove, the other ends of the two plug blocks are fixedly connected to the upper shell, the lower surface of the upper shell is in contact with the upper surface of the lower shell, and the inner walls on both sides of the upper shell are fixedly connected with symmetrically distributed positioning blocks.

[0012] Preferably, a movable rod is movably sleeved on the inner wall of the positioning block, one end of the movable rod is fixedly connected to a limiting pressure plate, and the upper surface of the limiting pressure plate is fixedly connected to a second supporting spring.

[0013] Preferably, one end of the second support spring is fixedly connected to the lower surface of the positioning block, a fan is fixedly installed on the inner wall of the upper shell, air outlet holes distributed in a rectangular array are opened on the upper surface of the upper shell, and a support frame is fixedly sleeved on the inner wall of the lower shell.

[0014] Preferably, a rectangular sealing gasket is fixedly connected to the upper surface of the support frame, a filter plate is movably sleeved on the inner wall of the lower shell, the lower surface of the filter plate contacts the upper surface of the rectangular sealing gasket, and the lower surfaces of the two limiting pressure plates both contact the upper surface of the filter plate.

[0015] The beneficial effects of the present invention are as follows:

[0016] By setting up a quick-release device, the upper shell and the lower shell can be quickly disassembled and assembled, which facilitates the replacement of the internal filter plate. The operation is convenient, the downtime is reduced, and the filtration efficiency is improved. It also has the function of stably limiting the installed filter plate to ensure stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a front view of a quick-release filter provided by the utility model;

[0019] Figure 2 for Figure 1 A three-dimensional diagram of the upper shell structure of a quick-release filter is shown;

[0020] Figure 3 for Figure 1 An exploded view of the lower housing structure of a quick-release filter is shown;

[0021] Figure 4 for Figure 1 A three-dimensional diagram of the positioning block structure of a quick-release filter is shown;

[0022] Figure 5 for Figure 1 A three-dimensional diagram of the locking block structure of a quick-release filter is shown;

[0023] Figure 6 for Figure 5 An enlarged view of the structure at point A of a quick-release filter is shown.

[0024] In the accompanying drawings, 1. lower shell; 2. air inlet slot; 3. locking block; 4. elastic block; 5. reset spring; 6. movable slot; 7. extrusion plate; 8. drive rod; 81. plug-in block; 82. mounting slot; 83. inclined block; 84. first support spring; 85. upper shell; 86. positioning block; 87. movable rod; 88. limiting pressure plate; 89. second support spring; 810. fan; 811. air outlet; 812. support frame; 813. rectangular sealing gasket; 814. filter plate. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0026] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0027] Reference Figure 1-6A quick-detachable filter comprises a lower shell 1, symmetrically distributed air inlet slots 2 are provided on both side surfaces of the lower shell 1, symmetrically distributed locking blocks 3 are fixedly connected to both side surfaces of the lower shell 1, an elastic block 4 is movably sleeved on the inner wall of the locking block 3, a return spring 5 is fixedly connected to the lower surface of the elastic block 4, one end of the return spring 5 is fixedly connected to the inner bottom wall of the locking block 3, a movable groove 6 is provided on the inner wall of one side of the locking block 3, and an extrusion plate 7 is movably sleeved on the inner wall of the movable groove 6;

[0028] A quick release device is provided on one side surface of the extrusion plate 7 , and the quick release device includes a driving rod 8 , one end of which is fixedly connected to one side surface of the extrusion plate 7 .

[0029] The other end of the driving rod 8 passes through and extends to one side surface of the locking block 3. The other end of the driving rod 8 is provided with a limit block, which is convenient for pressing and has the function of limiting the moving stroke of the driving rod 8. The inner wall of the locking block 3 is movably plugged with an insert block 81. One end of the insert block 81 contacts the upper surface of the elastic block 4. A mounting groove 82 is provided on one side surface of the insert block 81. The inner wall of the mounting groove 82 is movably sleeved with an inclined block 83. One end of the inclined block 83 is movably plugged with the inner wall of the movable groove 6. One end of the inclined block 83 is in contact with the other side surface of the extrusion plate 7. Contact, the other end of the inclined surface block 83 is fixedly connected to the first supporting spring 84, and the elastic force of the first supporting spring 84 drives the inclined surface block 83 to reset and move. One end of the first supporting spring 84 is fixedly connected to the inner wall of one side of the mounting groove 82, and the other ends of the two plug blocks 81 are fixedly connected to the upper shell 85, and the lower surface of the upper shell 85 contacts the upper surface of the lower shell 1. A sealing groove that cooperates with each other is provided between the upper shell 85 and the lower shell 1, and the inner walls on both sides of the upper shell 85 are fixedly connected with symmetrically distributed positioning blocks 86.

[0030] The inner wall of the positioning block 86 is movably connected with a movable rod 87, one end of the movable rod 87 is fixedly connected to a limited pressure plate 88, the upper surface of the limited pressure plate 88 is fixedly connected to a second support spring 89, one end of the second support spring 89 is fixedly connected to the lower surface of the positioning block 86, the inner wall of the upper shell 85 is fixedly installed with a fan 810, the upper surface of the upper shell 85 is provided with air outlet holes 811 distributed in a rectangular array, the inner wall of the lower shell 1 is fixedly connected with a support frame 812, the support frame 812 is fixedly connected to the upper surface of the positioning block 86, and the upper surface of the upper shell 85 is provided with air outlet holes 811 distributed in a rectangular array. A rectangular sealing gasket 813 is fixedly connected to the upper surface, and a filter plate 814 is movably sleeved on the inner wall of the lower shell 1. The elastic force of the second support spring 89 limits and squeezes the filter plate 814 through the limiting pressure plate 88 to prevent the filter plate 814 from loosening. The lower surface of the filter plate 814 contacts the upper surface of the rectangular sealing gasket 813. A handle is provided above the filter plate 814 to facilitate removal and replacement. The lower surfaces of the two limiting pressure plates 88 are in contact with the upper surface of the filter plate 814.

[0031] By setting up a quick-release device, the upper shell 85 and the lower shell 1 can be quickly disassembled and assembled, thereby facilitating the replacement of the internal filter plate 814. The operation is convenient, the downtime is reduced, and the filtering efficiency is improved. It also has the function of stably limiting the installed filter plate 814, thereby ensuring stable operation.

[0032] Working principle: Step 1: When the filter plate 814 needs to be replaced, the driving rod 8 is pressed, and the driving rod 8 drives the squeezing plate 7 to move. The movement of the squeezing plate 7 squeezes the inclined block 83, so that the inclined block 83 drives the first supporting spring 84 to contract. When the inclined block 83 moves out of the movable groove 6, the elastic block 4 drives the insert block 81 to rise elastically through the elastic force of the return spring 5, thereby driving the upper shell 85 to rise and move away from the lower shell 1. At this time, the upper shell 85 is removed, and the filter plate 814 is taken out of the lower shell 1 by the handle for replacement;

[0033] When the filter plate 81 is in the closed position, the filter 814 is pressed down by the elastic force of the second support spring 89. When the filter plate 81 is in the closed position, the inclined surface of the inclined surface block 83 is pressed down by the elastic force of the second support spring 89. When the filter plate 81 is in the closed position, the inclined surface of the inclined surface block 83 is pressed down by the elastic force of the second support spring 89. When the filter plate 81 is in the closed position, the inclined surface of the inclined surface block 83 is pressed down by the elastic force of the first support spring 89. When the filter plate 81 is in the closed position, the inclined surface of the inclined surface block 83 is pressed down by the elastic force of the first support spring 89. When the filter plate 81 is in the closed position, the inclined surface of the inclined surface block 83 is pressed down by the elastic force of the first support spring 89.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A quick-release filter, comprising a lower housing (1), characterized in that: The two side surfaces of the lower shell (1) are provided with symmetrically distributed air inlet slots (2), the two side surfaces of the lower shell (1) are fixedly connected with symmetrically distributed locking blocks (3), the inner wall of the locking block (3) is movably sleeved with an elastic block (4), the lower surface of the elastic block (4) is fixedly connected with a return spring (5), one end of the return spring (5) is fixedly connected to the inner bottom wall of the locking block (3), a movable groove (6) is provided on the inner wall of one side of the locking block (3), and the inner wall of the movable groove (6) is movably sleeved with an extrusion plate (7); A quick-release device is provided on one side surface of the extrusion plate (7), and the quick-release device includes a driving rod (8), one end of which is fixedly connected to one side surface of the extrusion plate (7).

2. The quick-release filter according to claim 1, characterized in that: The other end of the driving rod (8) passes through and extends to a side surface of the locking block (3); an insert block (81) is movably inserted into the inner wall of the locking block (3); one end of the insert block (81) contacts the upper surface of the elastic block (4); and a mounting groove (82) is provided on one side surface of the insert block (81).

3. The quick-release filter according to claim 2, characterized in that: The inner wall of the mounting groove (82) is movably sleeved with an inclined surface block (83), one end of the inclined surface block (83) is movably plugged into the inner wall of the movable groove (6), one end of the inclined surface block (83) contacts the other side surface of the extrusion plate (7), and the other end of the inclined surface block (83) is fixedly connected to a first support spring (84).

4. The quick-release filter according to claim 3, characterized in that: One end of the first support spring (84) is fixedly connected to an inner wall of one side of the mounting groove (82), and the other ends of the two insert blocks (81) are fixedly connected to an upper shell (85), the lower surface of the upper shell (85) contacts the upper surface of the lower shell (1), and the inner walls on both sides of the upper shell (85) are fixedly connected to positioning blocks (86) that are symmetrically distributed.

5. The quick-release filter according to claim 4, characterized in that: The inner wall of the positioning block (86) is movably sleeved with a movable rod (87), one end of the movable rod (87) is fixedly connected to a limiting pressure plate (88), and the upper surface of the limiting pressure plate (88) is fixedly connected to a second supporting spring (89).

6. The quick-release filter according to claim 5, characterized in that: One end of the second support spring (89) is fixedly connected to the lower surface of the positioning block (86); a fan (810) is fixedly mounted on the inner wall of the upper shell (85); air outlet holes (811) distributed in a rectangular array are provided on the upper surface of the upper shell (85); and a support frame (812) is fixedly sleeved on the inner wall of the lower shell (1).

7. The quick-release filter according to claim 6, characterized in that: A rectangular sealing gasket (813) is fixedly connected to the upper surface of the support frame (812), and a filter plate (814) is movably sleeved on the inner wall of the lower shell (1). The lower surface of the filter plate (814) contacts the upper surface of the rectangular sealing gasket (813), and the lower surfaces of the two limiting pressure plates (88) both contact the upper surface of the filter plate (814).

Images