Automatic cotton changing type filter box

Abstract

The utility model relates to the technical field of filter boxes, in particular to an automatic cotton replacing type filter box which comprises a filter frame, the front end of the filter frame is fixedly connected with a differential pressure gauge and a meter counter, the inner wall of the filter frame is rotatably connected with a discharging roller and a collecting roller, filter cotton is wound on the surface of the discharging roller, and the collecting roller is rotatably connected with the discharging roller. The bottom of the filter cotton is wound on the surface of the receiving roller, and a driving mechanism is arranged on the surface of the filter frame; wherein the driving mechanism comprises two servo motors which are fixedly connected to one side of the filtering frame, and output shafts of the servo motors are fixedly connected with first gears; according to the device, a servo motor, a connecting rod and a connecting cylinder are utilized, the discharging roller and the collecting roller are driven at the same time, it is guaranteed that filter cotton is subjected to uniform pulling force, then it is guaranteed that in the automatic replacement process of the filter cotton in the filter box, the situation that a pull rope of the filter cotton deforms is avoided, and therefore the filtering effect of the filter box is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of filter boxes, in particular to an automatic cotton-changing filter box. Background Art

[0002] The automatic cotton-changing filter box is an intelligent filtering device that can automatically replace the filter element (cotton core) to maintain the filtering effect and air quality. This filter box is widely used in industrial, commercial and household fields, especially in occasions where large amounts of air or liquid need to be continuously filtered.

[0003] The Chinese patent "An automatic cotton-changing filter box" authorization announcement number "CN219441084U" uses a discharge roller, a collection roller, filter cotton and a reduction motor to achieve automatic replacement of filter cotton. Replacing the filter cotton in the filter box is simple.

[0004] However, the discharge roller has a certain weight. By pulling the filter cotton to move, the discharge roller is driven to rotate, resulting in excessive tension on the filter cotton, which can easily cause the filter cotton to stretch and deform, thereby affecting the filtering effect of the filter box.

[0005] Therefore, an automatic cotton-changing filter box is proposed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an automatic cotton-changing filter box in order to solve the above-mentioned problem, thereby improving the problem that the tension is too large during the automatic replacement of the filter cotton, which easily leads to the stretching and deformation of the filter cotton.

[0007] The utility model achieves the above-mentioned purpose through the following technical scheme: an automatic cotton-changing filter box, comprising: a filter frame, a front end of the filter frame is fixedly connected with a differential pressure gauge and a meter meter, the inner wall of the filter frame is rotatably connected with a discharge roller and a collection roller, the surface of the discharge roller is wound with filter cotton, the bottom of the filter cotton is wound on the surface of the collection roller, and the surface of the filter frame is provided with a driving mechanism; wherein the driving mechanism comprises two servo motors fixedly connected to one side of the filter frame, the output shaft of the servo motor is fixedly connected with a first gear, the surface of the first gear is meshingly connected with a second gear, and the surface of the filter frame is provided with a driving assembly.

[0008] Preferably, the driving assembly includes a plurality of connecting cylinders rotatably connected to the inner wall of the filter frame, wherein the surface of the connecting cylinder on one side is fixedly connected to the inner wall of the second gear, the inner walls of the discharge roller and the receiving roller are both slidably connected with a connecting rod and a limit block, the surface of the connecting rod is fixedly connected to the limit block, and the surfaces of the connecting rod and the limit block are both slidably connected to the inner wall of the connecting cylinder. The servo motor, the connecting rod and the receiving roller are driven simultaneously, ensuring that the filter cotton is subjected to uniform tension, thereby ensuring that the filter cotton in the filter box will not be deformed by the draw cord during automatic replacement, thereby ensuring the filtering effect of the filter box.

[0009] Preferably, two cabinet doors are clamped at the front end of the filter frame, and both sides of the inner wall of the filter frame are slidably connected with fixing blocks, and the surfaces of the fixing blocks are clamped on the inner walls of the cabinet doors.

[0010] Preferably, a connecting frame is fixedly connected to one side of the fixed block, and two sliding disks are rotatably connected to the inner wall of the filter frame. Two active holes are opened at the top of the sliding disk, and the surface of the connecting frame is slidably connected to the inner wall of the active hole.

[0011] Preferably, the inner wall of the connecting frame is fixedly connected with a driven rod, and the surface of the driven rod is rotatably connected to the inner wall of the connecting rod. By using the sliding plate, the active hole and the driven rod, the cabinet door, the receiving roller and the unloading roller are unlocked at the same time, which is convenient for quickly replacing new filter cotton and improving the convenience of using the automatic cotton changing filter box.

[0012] Preferably, the inner wall of the filter frame is fixedly connected with a sealing ring, the surface of the filter cotton is slidably connected to the inner wall of the sealing ring, the inner wall of the filter frame is rotatably connected with a roller, and the surface of the roller contacts the surface of the filter cotton. The sealing ring is used to seal the filter cotton being replaced, thereby ensuring that unfiltered air will not be discharged through the gap between the filter cotton and the filter box during the filter cotton replacement, thereby ensuring the performance of the automatic filter box.

[0013] Preferably, the inner wall of the sliding plate is slidably connected with a clamping rod, and the surface of the clamping rod is clamped to the inner wall of the filter frame. The clamping rod is used to lock the sliding plate, ensuring the stability of the receiving roller and the discharging roller installed on the filter frame.

[0014] Preferably, the inner wall of the filter frame is fixedly connected with a plurality of placement seats, and the inner wall of the placement seat is rollingly connected with a ball. The placement seats and the ball are used to achieve stable placement of the receiving roller and the discharging roller, which facilitates the accurate insertion of the connecting rod and the limit block into the receiving roller and the discharging roller. The receiving roller and the discharging roller are installed on the filter frame for simple operation.

[0015] The beneficial effects of the utility model are:

[0016] 1. The servo motor, connecting rod and connecting cylinder are used to realize the simultaneous driving of the unloading roller and the receiving roller, ensuring that the filter cotton is subjected to uniform tension, thereby ensuring that the filter cotton in the filter box will not be deformed during automatic replacement, thereby ensuring the filtering effect of the filter box;

[0017] 2. The sliding plate, active hole and driven rod are used to unlock the cabinet door, receiving roller and unloading roller at the same time, which is convenient for quickly replacing new filter cotton and improving the convenience of using the automatic cotton changing filter box;

[0018] 3. The sliding plate is locked by using the clamping rod, ensuring the stability of the receiving roller and the discharging roller installed on the filter frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the driving mechanism structure of the utility model;

[0021] Figure 3 for Figure 2 A magnified view of middle;

[0022] Figure 4 This is a schematic diagram of the structure of the unwinding roller and the driving assembly of the utility model;

[0023] Figure 5 for Figure 4 Enlarged view of B.

[0024] In the figure: 1. filter frame; 2. differential pressure gauge; 3. unloading roller; 4. collecting roller; 5. filter cotton; 6. meter; 7. driving mechanism; 71. servo motor; 72. first gear; 73. second gear; 74. driving assembly; 741. sealing ring; 742. roller; 743. placement seat; 744. ball bearing; 745. connecting tube; 746. connecting rod; 747. limit block; 748. driven rod; 749. connecting frame; 7410. fixing block; 7411. sliding plate; 7412. active hole; 7413. clamping rod; 7414. cabinet door. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] When implementing: Figure 1-5 As shown, an automatic cotton-changing filter box comprises: a filter frame 1, a differential pressure gauge 2 and a meter 6 are fixedly connected to the front end of the filter frame 1, a discharge roller 3 and a receiving roller 4 are rotatably connected to the inner wall of the filter frame 1, a filter cotton 5 is wound around the surface of the discharge roller 3, and the bottom of the filter cotton 5 is wound around the surface of the receiving roller 4, and a driving mechanism 7 is arranged on the surface of the filter frame 1; wherein the driving mechanism 7 comprises two servo motors 71 fixedly connected to one side of the filter frame 1, and the output shaft of the servo motor 71 is fixedly connected to a first gear 72, and the first gear 7 2 is meshedly connected with a second gear 73, and a driving assembly 74 is provided on the surface of the filter frame 1. The driving assembly 74 includes a plurality of connecting cylinders 745 rotatably connected to the inner wall of the filter frame 1, wherein the surface of the connecting cylinder 745 on one side is fixedly connected to the inner wall of the second gear 73, and the inner walls of the discharge roller 3 and the receiving roller 4 are both slidably connected with a connecting rod 746 and a limit block 747, the surface of the connecting rod 746 is fixedly connected to the limit block 747, and the surfaces of the connecting rod 746 and the limit block 747 are both slidably connected to the inner wall of the connecting cylinder 745.

[0027] The servo motor 71 is an engine that controls the operation of mechanical components in a servo system. It is an auxiliary motor indirect speed change device. It can control the speed and rotation direction, has very accurate position accuracy, and can convert voltage signals into torque and speed to drive the control object.

[0028] It should be noted that the differential pressure gauge 2, meter counter 6 and servo motor 71 in the above description are all devices with relatively mature application of existing technologies. The differential pressure gauge 2, meter counter 6 and servo motor 71 are all circuit-connected, and the specific model can be selected according to actual needs. At the same time, the differential pressure gauge 2, meter counter 6 and servo motor 71 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0029] The differential pressure gauge 2 measures the pressure difference on both sides of the filter cotton 5 between the air inlet and the air outlet in real time. When the pressure difference reaches the preset pressure value, the two servo motors 71 are automatically turned on, and the output shaft of the servo motor 71 rotates to drive the first gear 72 to rotate (because the diameter of the first gear 72 is smaller than the diameter of the second gear 73, the specific gear ratio is selected according to actual needs, so it is not repeated here). The first gear 72 rotates to drive the second gear 73 to rotate slowly. One of the second gears 73 rotates to drive the discharge roller 3 to rotate to discharge the unused filter cotton 5, and the other second gear 73 rotates to drive the collection roller 4 to rotate to collect the used filter cotton 5, thereby ensuring that the filter cotton 5 will not be subjected to a large pulling force during automatic cotton replacement. At this time, the meter 6 detects the winding length of the filter cotton 5. When the filter cotton 5 is wound to the preset length, the two servo motors 71 are automatically turned off.

[0030] like Figure 4-5As shown, two cabinet doors 7414 are clamped at the front end of the filter frame 1, and fixed blocks 7410 are slidably connected on both sides of the inner wall of the filter frame 1. The surface of the fixed block 7410 is clamped on the inner wall of the cabinet door 7414, and one side of the fixed block 7410 is fixedly connected to a connecting frame 749. The inner wall of the filter frame 1 is rotatably connected with two sliding disks 7411, and two active holes 7412 are opened at the top of the sliding disk 7411. The surface of the connecting frame 749 is slidably connected to the inner wall of the active hole 7412, and the inner wall of the sliding disk 7411 is slidably connected with a clamping rod 7413, and the surface of the clamping rod 7413 is clamped on the inner wall of the filter frame 1. The inner wall of the connecting frame 749 is fixedly connected with a driven rod 748, and the surface of the driven rod 748 is rotatably connected to the inner wall of the connecting rod 746.

[0031] When the used filter cotton 5 in the filter frame 1 needs to be replaced, the two sliding plates 7411 are rotated, and the rotation of the sliding plates 7411 drives the two active holes 7412 to rotate. The rotation of the active holes 7412 drives the connecting frame 749, the fixed block 7410, the driven rod 748 and the connecting rod 746 to move, thereby releasing the lock on the cabinet door 7414, the receiving roller 4 and the discharging roller 3, and the filter cotton 5 in the filter frame 1 can be replaced.

[0032] like Figure 3 As shown, the inner wall of the filter frame 1 is fixedly connected with a sealing ring 741, the surface of the filter cotton 5 is slidably connected to the inner wall of the sealing ring 741, and the inner wall of the filter frame 1 is rotatably connected with a roller 742, and the surface of the roller 742 contacts the surface of the filter cotton 5. The sealing ring 741 is used to seal the connection between the filter frame 1 and the filter cotton 5, and the roller 742 is used to limit and guide the moving filter cotton 5 to ensure that the filter cotton 5 will not be wrinkled in the filter frame 1.

[0033] like Figure 5 As shown, the inner wall of the filter frame 1 is fixedly connected with a plurality of placement seats 743, and the inner wall of the placement seats 743 is rollingly connected with balls 744. The placement seats 743 are used to support the receiving roller 4 and the discharging roller 3, ensuring that the connecting rod 746 and the limit block 747 can be accurately inserted into the receiving roller 4 and the discharging roller 3, and the balls 744 reduce the friction of the receiving roller 4 and the discharging roller 3 rotating on the placement seats 743.

[0034] When the utility model is in use, the differential pressure gauge 2 measures the pressure difference on both sides of the filter cotton 5 between the air inlet and the air outlet in real time. When the pressure difference reaches the preset pressure value, the two servo motors 71 are automatically turned on, and the output shaft of the servo motor 71 rotates through the first gear 72 and the second gear 73 to drive the discharge roller 3 and the receiving roller 4 to rotate, thereby replacing the used filter cotton 5, ensuring that the filter cotton 5 will not be subjected to a large pulling force during the automatic cotton replacement. At this time, the meter 6 detects the winding length of the filter cotton 5. When the filter cotton 5 is wound to the preset length, the two servo motors 71 are automatically turned off. The two sliding plates 7411 are rotated, and the sliding plates 7411 rotate through the active hole 7412 and the connecting frame 749 to drive the fixed block 7410, the driven rod 748 and the connecting rod 746 to move, thereby releasing the lock on the cabinet door 7414, the receiving roller 4 and the discharge roller 3, and the filter cotton 5 in the filter frame 1 can be replaced.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic cotton-changing filter box, characterized in that: include: A filter frame (1), wherein a differential pressure gauge (2) and a meter (6) are fixedly connected to the front end of the filter frame (1), a discharge roller (3) and a receiving roller (4) are rotatably connected to the inner wall of the filter frame (1), a filter cotton (5) is wound around the surface of the discharge roller (3), and the bottom of the filter cotton (5) is wound around the surface of the receiving roller (4), and a driving mechanism (7) is arranged on the surface of the filter frame (1); The driving mechanism (7) comprises two servo motors (71) fixedly connected to one side of the filter frame (1); an output shaft of the servo motor (71) is fixedly connected to a first gear (72); a surface of the first gear (72) is meshingly connected to a second gear (73); and a driving assembly (74) is provided on the surface of the filter frame (1); The driving assembly (74) comprises a plurality of connecting tubes (745) rotatably connected to the inner wall of the filter frame (1), wherein the surface of the connecting tube (745) on one side is fixedly connected to the inner wall of the second gear (73), the inner walls of the discharge roller (3) and the receiving roller (4) are both slidably connected with a connecting rod (746) and a limit block (747), the surface of the connecting rod (746) is fixedly connected to the limit block (747), and the surfaces of the connecting rod (746) and the limit block (747) are both slidably connected to the inner wall of the connecting tube (745).

2. The automatic cotton-changing filter box according to claim 1, characterized in that: Two cabinet doors (7414) are snap-connected to the front end of the filter frame (1), and fixing blocks (7410) are slidably connected to both sides of the inner wall of the filter frame (1), and the surface of the fixing block (7410) is snap-connected to the inner wall of the cabinet door (7414).

3. The automatic cotton-changing filter box according to claim 2, characterized in that: A connecting frame (749) is fixedly connected to one side of the fixed block (7410), and two sliding disks (7411) are rotatably connected to the inner wall of the filter frame (1). Two active holes (7412) are formed at the top of the sliding disk (7411), and the surface of the connecting frame (749) is slidably connected to the inner wall of the active hole (7412).

4. The automatic cotton-changing filter box according to claim 3 is characterized in that: The inner wall of the connecting frame (749) is fixedly connected to a driven rod (748), and the surface of the driven rod (748) is rotatably connected to the inner wall of the connecting rod (746).

5. The automatic cotton-changing filter box according to claim 1, characterized in that: The inner wall of the filter frame (1) is fixedly connected to a sealing ring (741), the surface of the filter cotton (5) is slidably connected to the inner wall of the sealing ring (741), and the inner wall of the filter frame (1) is rotatably connected to a roller (742), the surface of the roller (742) contacts the surface of the filter cotton (5).

6. The automatic cotton-changing filter box according to claim 3, characterized in that: The inner wall of the sliding plate (7411) is slidably connected to a clamping rod (7413), and the surface of the clamping rod (7413) is clamped to the inner wall of the filter frame (1).

7. The automatic cotton-changing filter box according to claim 1, characterized in that: A plurality of placement seats (743) are fixedly connected to the inner wall of the filter frame (1), and a ball (744) is rollingly connected to the inner wall of the placement seat (743).

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