A filter screen easy to take

Abstract

The utility model relates to filter screen technical field especially is a kind of filter screen that is convenient to take, including fixed frame, the one side of fixed frame is equipped with assembly slot, the filter screen is magnetically attracted with on assembly slot, the other side of fixed frame is equipped with the opening of intercommunication assembly slot, the both sides of assembly slot inner wall are equipped with perforation, the sliding limit stop plate in perforation, the both sides of fixed frame outer wall are equipped with a pair of intercommunication limit slot's perforation, the middle part of the both sides of fixed frame outer wall is equipped with rectangular slot. Through the design of assembly slot, limit slot, perforation, limit stop plate and connecting piece etc. structure, in the process of taking out filter screen to clean, pull rod can make connecting piece drive limit stop plate to remove the limiting of filter screen, make filter screen be in the state of no constraint and wait to take, staff can easily take out filter screen, compared with traditional taking-out mode, improve the convenience and efficiency of filter screen maintenance.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a filter that is easy to handle. Background Technology

[0002] A filter is a device used to filter and separate substances. It uses its specific structure and materials to capture, block, or allow substances of different sizes to pass through. Filters can be classified according to different uses and needs. The materials and structures of filter screens vary depending on their application scenarios and requirements, including but not limited to textile fibers and hardware materials.

[0003] When using a filter screen, it is necessary to filter impurities, which requires regular cleaning. However, existing filter screens are usually installed by bolt fastening. When disassembling and removing the filter screen, multiple sets of bolts need to be loosened one by one, which is not convenient and may make subsequent replacement and cleaning difficult. Therefore, a filter screen that is easy to handle is needed to improve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a filter screen that is easy to handle, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A convenient filter screen includes a fixed frame, a mounting groove on one side of the fixed frame, on which the filter screen is magnetically attached, and an opening communicating with the mounting groove on the other side of the fixed frame.

[0007] Both sides of the inner wall of the assembly slot are provided with through holes, and a limit plate slides in the through holes. Both sides of the outer wall of the fixing frame are provided with a pair of through holes that connect the limit grooves. Both sides of the outer wall of the fixing frame are provided with rectangular grooves in the middle.

[0008] A connector is provided inside the perforation. One end of the connector passes through the perforation and is fixedly connected to the pull rod. The end of the connector located in the limiting groove is fixedly connected to the side wall of the limiting plate. After the limiting plate extends out of the perforation, it fits against the outer wall of the filter screen.

[0009] A rotating rod is rotatably located at the middle of the pull rod. One end of the rotating rod extends into a rectangular groove and is fixed with an abutment plate. The side wall of the abutment plate is in contact with the inner wall of the rectangular groove.

[0010] As a preferred embodiment of this utility model, the filter screen includes a rectangular frame, on which the filter screen is fixed, and on the outer wall of the rectangular frame, a metal sheet is provided.

[0011] Through the above technical solution, the metal sheet is in magnetic attraction fit with the magnet in the assembly groove. On one hand, the alignment process during installation is simplified (magnetic attraction enables automatic guiding positioning); on the other hand, when the limiting plate is not completely locked, the filter screen can be temporarily fixed to prevent it from shaking and shifting during the installation process, which improves the convenience of installation.

[0012] As a preferred solution of the present utility model, a magnet is embedded in a square shape on the inner wall of the assembly groove, and the magnet is in magnetic attraction fit with the metal sheet.

[0013] Through the above technical solution, preliminary positioning and pre-fixing of the filter screen are realized by means of magnetic attraction, so as to prevent the filter screen from falling off accidentally when it is not completely locked.

[0014] As a preferred solution of the present utility model, the connecting member includes a connecting rod in clearance fit with the through hole, one end of the connecting rod is located outside the fixing frame, the other end penetrates into the limiting groove and is fixed to the side wall of the limiting plate, a spring is sleeved on the outer wall of the connecting rod, and two ends of the spring respectively abut against the limiting plate and one side of the inner wall of the limiting groove.

[0015] As a preferred solution of the present utility model, a circular hole is penetrated through the middle part of the pull rod, the rotating rod is rotatably fitted with the circular hole, and one end of the rotating rod penetrating out of the circular hole is fixed with a handle.

[0016] As a preferred solution of the present utility model, the limiting plate is shaped like a "匚", and a rubber pad is arranged on the side wall of the limiting plate.

[0017] Through the above technical solution, the limiting plate fits more closely with the edge contour of the filter screen, which increases the contact area and makes the limiting more stable. The rubber pad on the side wall has three advantages: it increases the friction force with the filter screen, further enhances the limiting effect, and prevents the filter screen from shifting when impacted by a medium; it avoids scratch damage to the filter screen or the limiting plate caused by hard metal contact; it utilizes the elastic buffering of rubber to reduce the wear of components during assembly and disassembly, and prolongs the service life.

[0018] As a preferred solution of the present utility model, a rubber sleeve is sleeved on the outer wall of the pull rod, and anti-slip lines are arranged on the rubber sleeve.

[0019] Through the above technical solution, the rubber sleeve and the anti-slip lines on the outer wall of the pull rod improve the holding comfort, prevent hand slipping, and facilitate accurate operation. The circular hole in the middle part is rotatably fitted with the rotating rod, so that the rotating rod can rotate flexibly. The abutting plate at one end of the rotating rod closely abuts against the fixing frame, thereby locking the position of the pull rod, keeping the limiting plate in a "contraction unlocked" state, which is convenient for staff to take and place the filter screen easily, and does not require continuous force to pull the pull rod, further simplifying the operation.

[0020] Compared with the prior art, the beneficial effects of the present utility model are:

[0021] 1. This utility model, through the design of the assembly groove, limiting groove, perforation, limiting plate and connecting parts, allows the connecting parts to move the limiting plate to release the filter screen during the process of removing the filter screen for cleaning. This puts the filter screen in an unrestrained state ready for removal, and the staff can easily remove the filter screen. Compared with the traditional removal method, this improves the convenience and efficiency of filter screen maintenance.

[0022] 2. This utility model, through the structural design of a rectangular groove, a rotating rod, and a contact plate, allows the contact plate to extend out of the rectangular groove when the pull rod is pulled to release the limit on the filter screen. After the contact plate extends out of the rectangular groove, the operator can rotate the rotating rod by the handle to make the contact plate rotate 90° and then contact the outer wall of the fixed frame, thereby achieving the positioning of the limit plate. The operator can then release the pull rod and remove the filter screen with both hands, improving the convenience of single-person installation and disassembly. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0026] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0027] Figure 5 This is a schematic diagram of the structure of the fixing frame of this utility model;

[0028] Figure 6 This is a schematic diagram of the internal structure of the fixing frame of this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the limiting plate of this utility model.

[0030] In the diagram: 1. Fixed frame; 10. Assembly slot; 11. Opening; 12. Limiting slot; 13. Perforation; 14. Rectangular slot; 2. Filter screen; 3. Limiting plate; 4. Connector; 40. Connecting rod; 41. Spring; 5. Pull rod; 6. Rotating rod; 7. Contact plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0032] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0033] For examples, please refer to Figure 1-7 This utility model provides a technical solution:

[0034] A filter screen that is easy to handle includes a fixed frame 1, an assembly groove 10 is provided on one side of the fixed frame 1, a filter screen 2 is magnetically attached to the assembly groove 10, and an opening 11 communicating with the assembly groove 10 is provided on the other side of the fixed frame 1.

[0035] Both sides of the inner wall of the assembly slot 10 are provided with through holes 13, and the limit plate 3 slides in the through holes 13. Both sides of the outer wall of the fixing frame 1 are provided with a pair of through holes 13 that connect the limit slots 12. Both sides of the outer wall of the fixing frame 1 are provided with rectangular slots 14 in the middle.

[0036] A connector 4 is provided inside the perforation 13. One end of the connector 4 passes through the perforation 13 and is fixedly connected to the pull rod 5. The end of the connector 4 located in the limiting groove 12 is fixedly connected to the side wall of the limiting plate 3. After the limiting plate 3 extends out of the perforation 13, it fits against the outer wall of the filter screen 2.

[0037] A rotating rod 6 is located at the middle of the pull rod 5. One end of the rotating rod 6 extends into the rectangular groove 14 and is fixed with an abutment plate 7. The side wall of the abutment plate 7 is in contact with the inner wall of the rectangular groove 14.

[0038] In this embodiment, the filter screen 2 includes a rectangular frame, on which the filter screen is fixed, and a metal sheet is provided on the outer wall of the rectangular frame.

[0039] Through the above technical solution, the metal sheet and the magnet in the assembly groove 10 magnetically cooperate, which simplifies the alignment process during installation (magnetic attraction automatically guides positioning), and temporarily fixes the filter screen 2 when the limiting plate 3 is not fully locked, preventing it from shaking and shifting during installation, thus improving the ease of installation.

[0040] In this embodiment, a magnet is embedded in the inner wall of the assembly groove 10 in a square shape, and the magnet is magnetically fitted with the metal sheet.

[0041] Through the above technical solution, the preliminary positioning and pre-fixing of the filter screen 2 are realized by magnetic attraction, so as to prevent the filter screen 2 from falling off accidentally when it is not completely locked.

[0042] In this embodiment, the connecting member 4 includes a connecting rod 40 that is in clearance fit with the through hole 13. One end of the connecting rod 40 is located outside the fixing frame 1, and the other end penetrates into the limiting groove 12 and is fixed on the side wall of the limiting plate 3. A spring 41 is sleeved on the outer wall of the connecting rod 40, and two ends of the spring 41 respectively abut against the limiting plate 3 and one side of the inner wall of the limiting groove 12.

[0043] In this embodiment, a circular hole is formed through the middle part of the pull rod 5, the rotating rod 6 is rotationally fitted with the circular hole, and a handle is fixed at one end of the rotating rod 6 passing out of the circular hole.

[0044] Through the above technical solution, the arrangement of the handle is convenient for an operator to operate the rotating rod 6, and the diameter of the handle is larger than that of the rotating rod 6.

[0045] In this embodiment, the limiting plate 3 is shaped like a "匚", and a rubber pad is arranged on the side wall of the limiting plate 3.

[0046] Through the above technical solution, the limiting plate is more fitted with the edge contour of the filter screen 2, which increases the contact area and makes the limiting more stable. The rubber pad on the side wall has three advantages: increasing the friction with the filter screen, further enhancing the limiting effect, and preventing the filter screen from shifting when impacted by medium; avoiding scratching damage to the filter screen or the limiting plate caused by hard metal contact; utilizing the elastic buffering of rubber to reduce the wear of components during disassembly and assembly and prolong the service life.

[0047] In this embodiment, a rubber sleeve is sleeved on the outer wall of the pull rod 5, and anti-slip lines are arranged on the rubber sleeve.

[0048] Through the above technical solution, the rubber sleeve and anti-slip lines on the outer wall of the pull rod 5 improve the holding comfort, prevent hand slippage and facilitate precise operation. The circular hole in the middle is rotationally fitted with the rotating rod 6, so that the rotating rod 6 can rotate flexibly. The abutting plate 7 at one end of the rotating rod 6 abuts tightly against the fixing frame, thereby locking the position of the pull rod 5, keeping the limiting plate 3 in a "contraction unlocking" state, which is convenient for an operator to easily take and place the filter screen 2. There is no need to continuously apply force to pull the pull rod 5, which further simplifies the operation.

[0049] The working process of this utility model is as follows: When using the easy-to-remove filter screen designed in this solution, first weld or fix the fixed frame 1 to the air inlet or outlet of the pipe. Hold the pull rod 5 and pull it away from the fixed frame 1. The pull rod 5 drives the connecting rod 40 of the connecting piece 4 to slide, thereby causing the limiting plate 3 to move and compress the spring 41. This causes the limiting plate 3 to retract into the through hole 13, releasing the limitation on the filter screen 2. Then rotate the rotating rod 6 so that the abutment plate 7 at one end of the rotating rod 6 rotates 90° and becomes perpendicular to the rectangular groove 14. After releasing the pull rod 5, the abutment plate 7 abuts against the outer wall of the fixed frame 1. At this time, the position of the pull rod 5 is locked, the spring 41 remains compressed, and the limiting plate 3 remains in the "retracted and unlocked" state. Finally, the operator can take out the filter screen 2 from the assembly groove 10 for cleaning or replacement.

[0050] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filter screen easy to take, comprising a fixing frame (1), wherein one side of the fixing frame (1) is provided with an assembling groove (10), the filter screen (2) is magnetically fitted on the assembling groove (10), the other side of the fixing frame (1) is provided with an opening (11) communicating with the assembling groove (10), characterized in that: two sides of the inner wall of the assembling groove (10) are both provided with through holes (13), a limiting plate (3) slides in the through holes (13), two sides of the outer wall of the fixing frame (1) are both provided with a pair of through holes (13) communicating with limiting grooves (12), and the middle part of the outer wall at two sides of the fixing frame (1) is both provided with a rectangular groove (14); a connecting piece (4) is arranged inside the through hole (13), one end of the connecting piece (4) passes through the through hole (13) and is then fixedly connected with a pull rod (5), one end of the connecting piece (4) located in the limiting groove (12) is fixedly connected to the side wall of the limiting plate (3), and the limiting plate (3) extends out of the through hole (13) and then fits with the outer wall of the filter screen (2); a rotating rod (6) is rotatably provided at the middle part of the pull rod (5), one end of the rotating rod (6) extends into the rectangular groove (14) and is fixedly provided with an abutting plate (7), and the side wall of the abutting plate (7) fits with the inner wall of the rectangular groove (14).

2. The easily accessible filter screen according to claim 1, characterized in that: the filter screen (2) comprises a rectangular frame, a filter mesh is fixed on the rectangular frame, and a metal sheet is arranged on the outer wall of the rectangular frame.

3. A filter screen that is easy to handle according to claim 1 or 2, characterized in that: the inner wall of the assembling groove (10) is in a shape of a "square" and embedded with a magnet, and the magnet is in magnetic fit with the metal sheet.

4. The easily removable filter screen according to claim 1, characterized in that: the connecting piece (4) comprises a connecting rod (40) in clearance fit with the through hole (13), one end of the connecting rod (40) is located outside the fixing frame (1), the other end penetrates into the limiting groove (12) and is then fixed on the side wall of the limiting plate (3), a spring (41) is sleeved on the outer wall of the connecting rod (40), and two ends of the spring (41) respectively abut against the limiting plate (3) and one side of the inner wall of the limiting groove (12).

5. A filter screen that is easy to handle according to claim 1, characterized in that: a round hole is penetratingly opened at the middle part of the pull rod (5), the rotating rod (6) is rotatably fitted with the round hole, and one end of the rotating rod (6) passing through the round hole is fixedly provided with a handle.

6. A filter screen that is easy to handle according to claim 4, characterized in that: the limiting plate (3) is in a "匚" shape, and a rubber pad is arranged on the side wall of the limiting plate (3).

7. A filter screen that is easy to handle according to claim 1, characterized in that: a rubber sleeve is sleeved on the outer wall of the pull rod (5), and anti-slip lines are arranged on the rubber sleeve.

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