Air filter

Abstract

The utility model relates to an air filter which comprises a fixed frame body, a movable frame body and a filter element, one side of the fixed frame body is hinged with the movable frame body, the other side of the fixed frame body is detachably connected with the movable frame body through a connecting mechanism, the filter element is arranged between the fixed frame body and the movable frame body, and the fixed frame body and the movable frame body are matched to form a filter element clamping cavity. The filter element is movably placed in the filter element clamping cavity and is clamped and fixed by the fixed frame body and the movable frame body; according to the air filter disclosed by the utility model, one sides of the two frame bodies are hinged, and the other sides of the two frame bodies are detachably connected through the connecting mechanism, so that when the filter element is replaced, the movable frame bodies can be opened to replace the filter element only by pushing the movable sleeve, moving the movable sleeve to the cylindrical section, rotating and pulling the connecting rod to be separated from the U-shaped hook; the two frame bodies can be connected only through reverse operation, operation is convenient, the movable frame bodies do not need to be moved in the operation process, and the labor intensity of workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to air filter technical field especially relates to an air filter. BACKGROUND

[0002] Air filter is a kind of filtering equipment. Before filling filter material, a frame with a layer of galvanized iron mesh (or stainless steel mesh) is attached to the air outlet surface of filter material, and another frame with a layer of galvanized iron mesh (or stainless steel mesh) is covered after filling filter material. The two layers of iron mesh not only protect the filter material from being blown apart, but also prevent the filter material from being deformed due to wind pressure, so as to ensure that all filter material surfaces can be fully utilized. The air filter has a solid structure, stable effect, long service life and wide application scenarios.

[0003] During installation of the filter core of the air filter, a plurality of bolts are usually used to fix the filter core in the frame with galvanized iron mesh. During use of the air filter, the filter core needs to be replaced and cleaned frequently. On the one hand, the bolt disassembly work is tedious, and the bolts and other parts are easy to lose during this process, which brings inconvenience to the use of the air filter. On the other hand, during disassembly of the air filter, one of the frames needs to be removed and placed on the ground, and the frame needs to be lifted during installation. This process consumes a lot of physical strength and has high labor intensity.

[0004] Therefore, the utility model provides an air filter to solve the above problems. UTILITY MODEL CONTENTS

[0005] The technical problem to be solved by the utility model is to provide an air filter that facilitates installation and replacement of the filter core and reduces labor intensity.

[0006] To solve the above technical problems, the technical scheme of the utility model is as follows: an air filter, which is characterized by comprising a fixed frame, a movable frame and a filter core. One side of the fixed frame is hinged to the movable frame, and the other side is detachably connected to the movable frame through a connecting mechanism. The filter core is arranged between the fixed frame and the movable frame. The fixed frame and the movable frame cooperate to form a filter core clamping cavity. The filter core is movably placed in the filter core clamping cavity and clamped and fixed by the fixed frame and the movable frame.

[0007] The connecting mechanism comprises a moving piece, a movable sleeve and a connecting rod, the connecting rod is connected with the movable frame through a connecting plate, the moving piece comprises a movable sleeve positioning block and a cylindrical segment, the movable sleeve positioning block is movably installed on the side wall of the fixed frame through a sliding block, the cylindrical segment is connected on the side of the movable sleeve positioning block away from the fixed frame, the movable sleeve is arranged on the cylindrical segment and rotates around the cylindrical segment, and the movable sleeve is moved to be positioned by the movable sleeve positioning block to avoid rotation, one side of the movable sleeve is connected with a U-shaped hook, the side of the U-shaped hook away from the movable sleeve is provided with a limiting slot for the connecting rod to enter, the connecting rod is moved into the limiting slot of the U-shaped hook by rotating the movable frame, the movable sleeve is rotated to the first position around the cylindrical segment, the movable sleeve is moved and sleeved on the movable sleeve positioning block, the relative fixation of the connecting rod and the U-shaped hook and the relative fixation of the movable frame and the fixed frame are realized.

[0008] Further, the sliding block is arranged on the side of the movable sleeve positioning block away from the cylindrical segment, the sliding block is connected with the movable sleeve positioning block through a reduced diameter segment, the side wall of the fixed frame is provided with a sliding groove for the sliding block to move, the sliding block is movably arranged in the sliding groove, and a first spring is arranged in the sliding groove and connected with the side wall of the sliding groove and the side wall of the sliding block.

[0009] Further, the side of the cylindrical segment away from the movable sleeve positioning block is provided with a limiting diameter expansion disc.

[0010] Further, the movable sleeve positioning block is provided with a positioning column, the side wall of the movable positioning block is provided with an assembly groove for the positioning column to enter or extend out, the positioning column is movably arranged in the assembly groove, one end of the positioning column is connected with the bottom surface of the assembly groove through a second spring, the other end extends out of the assembly groove under the elastic force of the second spring, and the inner wall of the movable sleeve is provided with a positioning groove for the end of the positioning column to enter.

[0011] Further, the fixed frame and the movable frame are respectively provided with a filter element mounting groove, the filter element mounting grooves of the fixed frame and the movable frame cooperatively form a filter element clamping cavity, and the bottom surface edges of the filter element mounting grooves of the fixed frame and the movable frame are provided with annular sealing strips.

[0012] Further, the inner side of the annular sealing strip on the bottom surface of the filter element mounting groove of the fixed frame and the movable frame is provided with an opening, and a metal mesh is arranged on the opening of the fixed frame and the movable frame.

[0013] The utility model discloses the advantages are:

[0014] The two frame bodies of the air filter are hinged on one side, and are detachably connected through the connecting mechanism on the other side, when the filter element is replaced, only need to push the movable sleeve, and rotate after moving to the cylindrical section, pull the connecting rod to separate from the U-shaped hook, the movable frame body can be opened to replace the filter element, after the filter element is installed, only need to reverse the operation to complete the connection of the two frame bodies, convenient operation, and during the operation process, the movable frame body does not need to be moved, and the labor intensity is reduced.

[0015] The utility model discloses a first spring is set, when movable sleeve utilizes movable sleeve positioning block and prevents moving, first spring elasticity effect is passed through sliding block, moving piece and is transmitted to movable sleeve, makes the U-shaped hook of movable sleeve one side always press and set on connecting rod, makes connecting rod always be in the limiting slot of U-shaped hook, thereby improved the connection compactness between movable frame body and fixed frame body.

[0016] The utility model discloses a limit expansion disc is set on the side of cylindrical section away from movable sleeve positioning block, avoids movable sleeve and falls off from cylindrical section, ensures that movable sleeve always sets up on moving piece.

[0017] The utility model discloses a positioning column is set in movable sleeve positioning block, when movable sleeve utilizes movable sleeve positioning block and prevents moving, positioning column enters the positioning slot of movable sleeve under the elasticity effect of second spring, carries out axial location to movable sleeve, avoids movable sleeve and moves axially and separates from movable sleeve positioning block, makes movable frame body and fixed frame body connection loose.

[0018] The utility model discloses an annular sealing strip is set in the filter element installation groove of two frame bodies, when installing the filter element, the annular sealing strip is tightly pressed and set on the surface of filter element when the frame body clamps the filter element, forms the seal, guarantees the filtering effect of air filter.

[0019] The utility model discloses a metal net is covered and installed on the opening of two frame bodies, protects the filter element installed between two frame bodies, improves the service life. ACCURATE DRAWINGS

[0020] The utility model makes further detailed explanation in combination with the specific embodiment and the drawing.

[0021] Figure 1 It is the structure schematic drawing of the air filter of the utility model.

[0022] Figure 2 It is the partial section view of the fixed frame body of the utility model.

[0023] Figure 3 It is the enlarged view of A of the utility model. SPECIFIC EMBODIMENT

[0024] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the following will be described in detail in combination with the drawings and preferred embodiments, the specific embodiments, structures, features and effects according to the utility model.

[0025] Embodiment

[0026] The embodiment provides an air filter, which comprises a fixed frame 1, a movable frame 2 and a filter element, one side of the fixed frame 1 is hinged to the movable frame 2 through a hinge 4, and the other side is detachably connected to the movable frame 2 through a connecting mechanism.

[0027] The connecting mechanism comprises a moving piece, a movable sleeve and a connecting rod 36, the connecting rod 36 is connected to the movable frame 2 through a connecting plate 37, the connecting plate 37 is installed on the side wall of the movable frame 2, and the connecting rod 36 is installed on the side of the connecting plate 37 away from the movable frame 2. The moving piece comprises a movable sleeve positioning block 33 and a cylindrical segment 34, the movable sleeve positioning block 33 is movably installed on the side wall of the fixed frame 1 through a sliding block 31, the sliding block 31 is arranged on the side of the movable sleeve positioning block 33 away from the cylindrical segment 34, the sliding block 31 is connected to the movable sleeve positioning block 33 through a reduced diameter segment 32, a sliding groove 11 for the sliding block 31 to move is formed in the side wall of the fixed frame 1, the sliding block 31 is movably arranged in the sliding groove 11, a first spring 39 is arranged in the sliding groove 11, the first spring 39 is arranged on the side of the sliding block 31 away from the connecting rod 36, and the two ends of the first spring 39 are connected to the side wall of the sliding groove 11 and the side wall of the sliding block 31 respectively. The cylindrical segment 34 is connected to the side of the movable sleeve positioning block 33 away from the fixed frame 1, the movable sleeve 38 is sleeved on the cylindrical segment 34 and rotates around the cylindrical segment 34, and the movable sleeve 38 is moved to the movable sleeve positioning block 33 to be limited by the movable sleeve positioning block 33 to avoid rotation.

[0028] In the embodiment, the movable sleeve positioning block 33 is provided with a positioning column 310, an assembly groove for the positioning column 310 to enter or stretch out is formed in the side wall of the movable sleeve positioning block 33, the positioning column 310 is movably arranged in the assembly groove, one end of the positioning column 310 is connected to the bottom surface of the assembly groove through a second spring 311, the other end of the positioning column 310 stretches out of the assembly groove under the elastic force of the second spring 311, and the outer end segment of the positioning column 310 is a hemispherical curved surface. A positioning groove for the end of the positioning column 310 to enter is formed in the inner wall of the movable sleeve 38, when the movable sleeve 38 rotates to a first position around the cylindrical segment 34 and the movable sleeve 38 is moved and sleeved on the movable sleeve positioning block 33, the end of the positioning column 310 enters the positioning groove, so that the movable sleeve 38 is axially limited, the movable sleeve 38 is prevented from moving axially and separating from the movable sleeve positioning block 33, and the movable frame 2 and the fixed frame 1 are connected to be loose. The side of the cylindrical segment 34 away from the movable sleeve positioning block 33 is provided with a limiting diameter expansion disc 35, the axial movement range of the movable sleeve 38 is limited, and it is ensured that the movable sleeve 38 is always sleeved on the moving piece.

[0029] A U-shaped hook 312 is connected to one side of the movable sleeve 38. The side of the U-shaped hook 312 away from the movable sleeve 38 has a limiting groove for the connecting rod 36 to enter. By rotating the movable frame 2, the connecting rod 36 moves with the movable frame 2 and enters the limiting groove of the U-shaped hook 312. When the movable sleeve 38 rotates around the cylindrical section 34 to the first position, the movable sleeve 38 is moved and placed on the movable sleeve positioning block 33, so that the connecting rod 36 and the U-shaped hook 312 are relatively fixed, and the movable frame 2 and the fixed frame 1 are relatively fixed.

[0030] The filter element is positioned between a fixed frame 1 and a movable frame 2. Each of the fixed and movable frames has a filter element mounting groove. These grooves cooperate to form a filter element clamping cavity. An annular sealing strip 12 is provided at the bottom edge of each mounting groove. The filter element is movably placed within this cavity and clamped and secured by the fixed and movable frames. Openings are located on the inner side of the annular sealing strip 12 on the bottom surface of each mounting groove. A metal mesh is installed over these openings in both the fixed and movable frames to protect the filter element installed between the two frames and extend its service life.

[0031] Working principle: When replacing the filter element, manually pull the movable sleeve 38. The positioning pin 310 retracts into the assembly slot against the elastic force of the second spring 311. The movable sleeve 38 moves onto the cylindrical section 34. Manually pull the connecting rod 36 to disengage from the U-shaped hook 312. During this process, the U-shaped hook 312 drives the movable sleeve 38 to rotate around the cylindrical section 34, and the moving part moves linearly under the elastic force of the first spring 38. After the movable frame 2 opens, the old filter element is taken out of the filter element clamping cavity, and the new filter element is installed in the filter element mounting slot of the movable frame 2. Push the movable frame 2 to rotate, and at the same time pull the moving part to move against the elastic force of the first spring 38. Rotate the movable sleeve 38 to bring the U-shaped hook 312 closer to the movable frame 1, so that the connecting rod 36 enters the limiting groove of the U-shaped hook 312. Rotate the movable sleeve 38 in the opposite direction, through the U-shaped hook 312... The hook 312, connecting rod 36, and connecting plate 37 drive the movable frame 2 to move closer to the fixed frame 1 to clamp the filter element. Then, the movable sleeve 38 is pushed to move onto the movable sleeve positioning block 33, and the end of the positioning post 310 enters the positioning groove to axially limit the movable sleeve 38, thus completing the connection and fixation of the two frames.

[0032] The air filter has two frames that are hinged on one side and detachably connected on the other side via a connecting mechanism. When replacing the filter element, simply push the movable sleeve to move it onto the cylindrical section and rotate it. Pull the connecting rod to disengage from the U-shaped hook to open the movable frame and replace the filter element. After the filter element is installed, simply reverse the operation to complete the connection between the two frames. The operation is convenient and does not require moving the movable frame, reducing the intensity of manual labor.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An air filter, characterized in that: It includes a fixed frame, a movable frame, and a filter element. One side of the fixed frame is hinged to the movable frame, and the other side is detachably connected to the movable frame through a connecting mechanism. The filter element is placed between the fixed frame and the movable frame. The fixed frame and the movable frame cooperate to form a filter element clamping cavity. The filter element is movably placed in the filter element clamping cavity and clamped and fixed by the fixed frame and the movable frame. The connecting mechanism includes a movable component, a movable sleeve, and a connecting rod. The connecting rod is connected to the movable frame via a connecting plate. The movable component includes a movable sleeve positioning block and a cylindrical section. The movable sleeve positioning block is movably mounted on the side wall of the fixed frame via a slider. The cylindrical section is connected to the side of the movable sleeve positioning block away from the fixed frame. The movable sleeve is movably fitted onto the cylindrical section and rotates around it, moving to the movable sleeve positioning block where it is limited to prevent rotation. A U-shaped hook is connected to one side of the movable sleeve. The side of the U-shaped hook away from the movable sleeve has a limiting groove for the connecting rod to enter. By rotating the movable frame, the connecting rod moves with the movable frame and enters the limiting groove of the U-shaped hook. When the movable sleeve rotates around the cylindrical section to the first position, it moves and fits onto the movable sleeve positioning block, thus fixing the connecting rod relative to the U-shaped hook and the movable frame relative to the fixed frame.

2. The air filter according to claim 1, characterized in that: The slider is located on the side of the movable sleeve positioning block away from the cylindrical section. The slider is connected to the movable sleeve positioning block through a reduced diameter section. A groove for the slider to move is opened on the side wall of the fixed frame. The slider is movably set in the groove. A first spring is provided in the groove. The two ends of the first spring are connected to the side wall of the groove and the side wall of the slider, respectively.

3. The air filter according to claim 1, characterized in that: The cylindrical segment has a limiting and expanding disc on the side away from the movable sleeve positioning block.

4. The air filter according to claim 1, characterized in that: The movable sleeve positioning block is equipped with a positioning post. The side wall of the movable positioning block has an assembly groove for the positioning post to enter or extend. The positioning post is movably set in the assembly groove. One end of the positioning post is connected to the bottom surface of the assembly groove through a second spring, and the other end extends out of the assembly groove under the action of the second spring. The inner wall of the movable sleeve has a positioning groove for the end of the positioning post to enter. When the movable sleeve rotates around the cylindrical section to the first position, moves the movable sleeve and makes the movable sleeve fit on the movable sleeve positioning block, the end of the positioning post enters the positioning groove.

5. The air filter according to claim 1, characterized in that: Each of the fixed frame and the movable frame has a filter element mounting groove. The filter element mounting grooves of the fixed frame and the movable frame cooperate to form a filter element clamping cavity. An annular sealing strip is provided at the bottom edge of the filter element mounting groove of the fixed frame and the movable frame.

6. The air filter according to claim 5, characterized in that: The bottom surface of the filter element mounting groove of the fixed frame and the movable frame has an opening on the inner side of the annular sealing strip, and a metal mesh is installed on the opening of both the fixed frame and the movable frame.

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