Quick pressing device for filter

Abstract

The utility model relates to a filter quick pressing device which comprises a fixing frame, a penetrating hole for a filter to pass through is formed in the fixing frame, locking columns are fixedly connected to the four corners of the fixing frame, connecting rings are rotationally installed on the locking columns, and locking nuts for locking the connecting rings are connected to the locking columns in a threaded mode. At least one fixing rod is fixedly connected to the outer circumference of the connecting ring, the fixing rods coincide with the frame of the fixing frame in the conventional state, the ends of the fixing rods rotate into the penetrating holes and abut against the filter in the working state, and when the fixing rods coincide with the frame of the fixing frame, the filter can be taken out or put into the penetrating holes. When the end of the fixing rod rotates into the penetrating hole and abuts against the filter, the filter is fixed, so that the efficiency of replacing or installing the filter is higher, meanwhile, in the replacing or installing process, the locking nut and the connecting ring do not need to be taken down from the locking column, and therefore the filter can be replaced or installed conveniently. Therefore, the locking nut and the connecting ring are prevented from being lost.

Description

Technical Field

[0001] The utility model relates to the technical field of air filtering equipment, in particular to a filter quick-pressing device. Background Art

[0002] Generally speaking, air purification equipment is installed indoors to purify indoor air. It can inhale indoor air, remove pollutants such as dust, odor and bacteria contained in the air, and then discharge the air back into the room. Air purification equipment can be used intensively both in civil and industrial applications. Regardless of the field of use, the filter (filter element) in the air purification equipment needs to be replaced frequently to effectively purify the air, especially in the industrial field, the frequency of replacing the filter will be higher. In the prior art, the filter is fixed in a way that a fixing frame is set on the mounting frame where the filter is placed. A plurality of threaded holes or welded nuts are set on the fixing frame. A screw is threadedly connected to the threaded hole or nut, and a fixing plate that abuts the filter is set on the screw. The screw fixes the fixing plate to fix the filter. In the process of replacing the filter, the screw and the fixing plate need to be completely removed from the fixing frame before the filter can be removed from the mounting frame. A new filter is placed in the mounting frame, and the screw is screwed back into the threaded hole or nut to fix the filter. This fixing method has two disadvantages. The first disadvantage is that the screw rod needs to be completely removed before replacement, which results in a long replacement time and low efficiency. The second disadvantage is that the screw rod and the fixing plate are easily lost after being completely removed from the fixing frame.

[0003] For example, a Chinese patent with publication number CN204513727U discloses a high-efficiency filter installation structure, which records that "a first connecting plate 8 extends horizontally outward from the upper end of the filter fixing frame 1, a connecting nut 9 is provided on the lower plane of the first connecting plate 8, and the filter pressure strip 3 is screwed on the connecting nut 9 by a butterfly screw 10 to fix it. When the butterfly screw 10 is tightened, the filter pressure strip 3 presses the first sealing gasket strip 4 tightly against the upper plane of the filter 2", and adopts the fixing method of the above technical solution. And there are the above technical problems. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a filter quick-pressing device capable of quickly replacing the filter.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a filter quick pressure device, including a fixed frame, a through hole for the filter to pass through is provided in the center of the fixed frame, locking columns are fixedly connected to the four corners of the fixed frame, a connecting ring is rotatably mounted on the locking column, and a locking nut for locking the connecting ring is threadedly connected to the locking column; at least one fixing rod is fixedly connected to the outer circumference of the connecting ring, under normal conditions, the fixing rod coincides with the frame of the fixed frame, and under working conditions, the end of the fixing rod rotates into the through hole and abuts against the filter.

[0006] As a preferred embodiment of the present invention, two fixing rods are integrally formed on the connecting ring, and the two fixing rods are evenly distributed on the outer circumference of the connecting ring at right angles.

[0007] As a preferred embodiment of the present invention, four fixing rods are integrally formed on the connecting ring, and the four fixing rods are evenly distributed on the outer circumference of the connecting ring in a "cross" shape.

[0008] As a preferred embodiment of the present invention, the width of the fixing rod is smaller than the border width of the fixing frame; and the length of the fixing rod is larger than the border width of the fixing frame.

[0009] As a preferred embodiment of the present invention, a slot is provided at the end of the locking column, a baffle is rotatably provided in the slot, the width of the baffle is less than or equal to the diameter of the locking column, and the length of the baffle is greater than the diameter of the locking column.

[0010] As a preferred embodiment of the utility model, a support shaft is fixedly installed in the slot, and the baffle is provided with a rotating hole adapted for the support shaft; a limited position surface is inclinedly provided at the bottom of the slot, and a contact surface matching the limited position surface is provided at one end of the baffle.

[0011] The beneficial effect of the utility model is that when the fixing rod coincides with the frame of the fixing frame, the filter can be taken out or put into the insertion hole, and when the end of the fixing rod is rotated into the insertion hole and abuts against the filter, the filter is fixed, thereby making the filter replacement or installation more efficient. At the same time, during the replacement or installation process, the locking nut and the connecting ring do not need to be removed from the locking column, thereby avoiding the loss of the locking nut and the connecting ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model.

[0013] Figure 2 It is a side view of the utility model.

[0014] Figure 3 It is an enlarged view of point A of the present utility model.

[0015] Figure 4 It is a cross-sectional view of the locking column of the utility model.

[0016] Figure 5 This is a distribution diagram of the fixing rods in the first embodiment of the present utility model.

[0017] Figure 6 This is a distribution diagram of two types of fixing rods in the first embodiment of the present utility model.

[0018] Explanation of the accompanying figures: 01. Fixed frame, 02. Insertion hole, 03. Locking column, 04. Connecting ring, 05. Connecting hole, 06. Fixed rod, 07. Locking nut, 08. Slot, 09. Support shaft, 10. Rotation hole, 11. Limiting surface, 12. Contact surface, 13. Baffle, 14. Mounting frame, 15. Filter. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] For example, see Figure 1-6As shown, the utility model relates to a filter quick pressure device, including a mounting frame 14 for placing a filter 15, a mounting port for taking out and putting in the filter is provided on the mounting frame 14, a fixing frame 01 is fixedly connected to the outer edge of the mounting port by welding, a through hole 02 for the filter to pass through is provided at the center of the fixing frame 01, and the fixing frame 01 is fixedly connected to the housing of the heating device or the air handler by welding. The four corners of the fixing frame 01 are fixedly connected by welding with locking columns 03, and a connecting ring 04 is rotatably provided on the locking column 03, and the diameter of the connecting ring 04 is smaller than the frame width (H) of the fixing frame 01, so that the outer circumferential surface of the connecting ring 04 is located outside the through hole 02. The operator can take out the filter from the through hole 02 or put it into the mounting frame. A connecting hole 05 is provided at the center of the connecting ring 04, and the connecting ring 04 rotates on the locking column 03 through the cooperation between the connecting hole 05 and the locking column 03. A fixing rod 06 is integrally formed on the outer circumference of the connecting ring 04. The length of the fixing rod 06 is greater than the frame width (H) of the fixing frame 01. A locking nut 07 is threadedly connected to the locking column 03. Under normal conditions, the connecting ring 04 is rotated to make the fixing rod 06 overlap with the frame of the fixing frame 01, and then the locking nut 07 is used to lock to prevent the end of the fixing rod 06 from being located in the insertion hole 02. To prevent the filter from being unable to pass through the insertion hole 02 smoothly, when the operator puts the filter into the mounting frame, a rotation force is applied to the connecting ring 04 to drive the end of the fixing rod 06 to be located in the insertion hole 02 and abut against the filter. The connecting ring 04 is then locked by the locking nut 07. Thus, the filter is fixed in the mounting frame. When the filter needs to be replaced, the locking nut 07 is loosened, the connecting ring 04 is rotated to make the fixing rod 06 overlap with the frame of the fixing frame 01, and the connecting ring 04 is in a normal state, and the filter can be taken out through the insertion hole 02. At the same time, during the whole process, the locking nut 07 and the connecting ring 04 are both sleeved on the locking column 03, thereby preventing the locking nut 07 and the connecting ring 04 from being lost during the replacement process.

[0021] See also Figure 4As shown, in order to further prevent the locking nut 07 and the connecting ring 04 from falling off from the locking column 03, a slot 08 is provided at the end of the locking column 03, a support shaft 09 is fixedly installed in the slot 08 by welding, and a long strip rotating hole 10 adapted to the support shaft 09 is provided on the baffle 13. The baffle 13 rotates in the slot 08 through the cooperation of the rotating hole 10 and the support shaft 09, and a limiting surface 11 is provided at an angle at the bottom of the slot 08, and a contact surface 12 matching the limiting surface 11 is provided at one end of the baffle 13. Under normal conditions, the center line of the baffle 13 in the length direction is perpendicular to the axis of the locking column 03 and coincides with the frame of the fixing frame 01, thereby preventing the locking nut 07 and the connecting ring 04 from falling off the locking column 03. When the locking nut 07 and the connecting ring 04 need to be set on the locking column, the baffle 13 is rotated, and when the limiting surface 11 and the contact surface 12 are in contact, the center line of the baffle 13 in the length direction coincides with the axis of the locking column 03. The locking nut 07 and the connecting ring 04 can be installed on the locking column 03.

[0022] The width of the baffle 13 is less than or equal to the diameter of the locking column 03. When the center line of the baffle 13 in the length direction coincides with the axis of the locking column 03, the locking nut 07 and the connecting ring 04 can be installed on the locking column 03. The length of the baffle 13 is greater than the diameter of the locking column 03. When the baffle 13 and the locking column 03 are arranged perpendicular to each other, the locking nut 07 and the connecting ring 04 can be prevented from falling off from the locking column 03.

[0023] For example 2, please refer to Figure 6 As shown, the difference between this embodiment and the above-mentioned embodiment is that a plurality of mounting frames are arranged on the housing of the heating device or the housing of the air handling unit, so each mounting frame is provided with a fixing frame 01, and locking columns 03 are fixedly connected to the four corners of each fixing frame 01 by welding. Two fixing rods 06 are integrally formed on the connecting ring 04 at the connection between the fixing frame 01 and the housing, and the two fixing rods 06 are evenly distributed on the outer circumference of the connecting ring 04 at right angles. Four fixing rods 06 are integrally formed on the connecting ring 04 at the connection between two adjacent fixing frames 01, and the four fixing rods 06 are evenly distributed on the outer circumference of the connecting ring 04 at a "cross" angle. The width of the fixing rod 06 is less than the frame width (H) of the fixing frame 01. The fixing rod 06 is located outside the insertion hole 02 under normal conditions.

[0024] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0026] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A filter quick pressure device, comprising a fixed frame, the center of which is provided with an insertion hole for the filter to pass through, characterized in that: The four corners of the fixed frame are fixedly connected with locking columns, a connecting ring is rotatably installed on the locking columns, and a locking nut is threadedly connected on the locking columns to lock the connecting ring; at least one fixing rod is fixedly connected to the outer circumference of the connecting ring. Under normal conditions, the fixing rod coincides with the frame of the fixed frame. Under working conditions, the end of the fixing rod rotates into the insertion hole and abuts against the filter.

2. The filter quick pressure device according to claim 1, characterized in that: Two fixing rods are integrally formed on the connecting ring, and the two fixing rods are evenly distributed on the outer circumference of the connecting ring at right angles.

3. The filter quick pressure device according to claim 1, characterized in that: Four fixing rods are integrally formed on the connecting ring, and the four fixing rods are evenly distributed on the outer circumference of the connecting ring in a "cross" shape.

4. The filter quick pressure device according to any one of claims 2 and 3, characterized in that: The width of the fixing rod is smaller than the border width of the fixing frame; the length of the fixing rod is larger than the border width of the fixing frame.

5. The filter quick pressure device according to claim 1, characterized in that: A slot is provided at the end of the locking column, a baffle is rotatably provided in the slot, the width of the baffle is less than or equal to the diameter of the locking column, and the length of the baffle is greater than the diameter of the locking column.

6. The filter quick pressure device according to claim 5, characterized in that: A support shaft is fixedly installed in the slot, and a long strip rotating hole adapted to the support shaft is provided on the baffle; a limited position surface is obliquely provided at the bottom of the slot, and a contact surface matching the limited position surface is provided at one end of the baffle.

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