Filter element lifting and conveying device

Abstract

The utility model provides a filter element lifting conveying device which comprises a rack, a guide rail extending in the vertical direction is arranged on the rack, a lifting conveying table is arranged on the rack and is in sliding fit with the guide rail, and a conveying assembly and a position sensor are rotationally arranged on the lifting conveying table; a driving chain wheel is rotationally arranged at the bottom of the rack, a second driven chain wheel is rotationally arranged at the top of the rack, the driving chain wheel and the second driven chain wheel are connected through a transmission chain, the transmission chain comprises a first connecting end and a second connecting end, and the first connecting end of the transmission chain is connected with the top of the lifting conveying table; a second connecting end of the transmission chain is connected with the bottom of the lifting conveying table; the driving device is used for driving the driving chain wheel to rotate; and the position sensor and the driving device are both in communication connection with the control system. The problems that in the prior art, when a semi-finished filter element is carried between a high station and a low station, labor intensity is large, labor cost is high, and carrying efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of storage and conveying equipment, in particular to a filter element lifting and conveying device. Background Art

[0002] During the operation of the filter element automated production line, semi-finished filter elements need to be transported from one workstation to another. When there is a height difference between the workstations, the filter elements need to be conveyed and lifted. Currently, the transportation of each filter element between high and low workstations requires manual handling. The transportation process consumes manpower and has low transportation efficiency, which cannot meet the continuous production requirements of the filter element automated production line. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a filter element lifting and conveying device for solving the problems of high labor intensity, high labor cost and low efficiency in the prior art when transporting semi-finished filter elements between high and low workstations.

[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides a filter element lifting and conveying device, including a frame, the frame is provided with a guide rail extending in a vertical direction, and a lifting and conveying platform, the lifting and conveying platform is slidably matched with the guide rail, a transmission component is rotatably provided on the lifting and conveying platform, and a position sensor is also provided on the lifting and conveying platform; a driving sprocket is rotatably provided at the bottom of the frame, and a second driven sprocket is rotatably provided at the top of the frame, the driving sprocket and the second driven sprocket are connected by a transmission chain, and the transmission chain includes a first connecting end and a second connecting end, the first connecting end of the transmission chain is connected to the top of the lifting and conveying platform, and the second connecting end of the transmission chain is connected to the bottom of the lifting and conveying platform; a driving device, the driving device is used to drive the driving sprocket to rotate; a control system, the position sensor and the driving device are both communicatively connected to the control system.

[0005] Preferably, guide rails are provided on both the front and rear sides of the frame, and slide grooves are provided on the guide rails on both the front and rear sides; pulleys are provided on both the front and rear sides of the lifting and conveying platform, the pulley on the front side of the lifting and conveying platform can be slidably embedded in the slide groove on the front guide rail, and the pulley on the rear side of the lifting and conveying platform can be slidably embedded in the slide groove on the rear guide rail.

[0006] Preferably, the slide groove is U-shaped, and the pulleys on the front and rear sides of the lifting conveying platform include a transverse pulley and a vertical pulley, wherein the axis of the transverse pulley and the axis of the vertical pulley are perpendicular to each other, the wheel surface of the transverse pulley is in contact with the bottom wall of the slide groove, and the wheel surface of the vertical pulley is in contact with the two side walls of the slide groove.

[0007] Preferably, the conveying assembly includes an active roller and a plurality of driven rollers rotatably arranged on the lifting conveying platform, and the active roller and the plurality of driven rollers are connected to each other through a transmission belt; the active roller is electrically connected to the control system, and the active roller is an electric roller.

[0008] Preferably, a photoelectric sensor is also provided on the lifting and conveying platform.

[0009] Preferably, the driving sprocket includes a driving sprocket, a first driven sprocket and a tensioning adjustment sprocket, the first connecting end of the transmission chain bypasses the driving sprocket, the first driven sprocket and the second driven sprocket and then extends downward to be connected to the top of the lifting and conveying platform, the second connecting end of the transmission chain bypasses the driving sprocket and the tensioning adjustment wheel and then extends upward to be connected to the bottom of the lifting and conveying platform, wherein the height of the tensioning adjustment sprocket can be adjusted up and down, and the driving device is used to drive the driving sprocket to rotate.

[0010] Preferably, the tensioning adjustment sprocket is arranged on the frame via a sprocket mounting plate, the sprocket mounting plate is provided with a connecting hole, the frame is provided with a long hole extending in the vertical direction, and the sprocket mounting plate is installed on the frame by passing bolts through the connecting hole on the sprocket mounting plate and the long hole on the frame; the tensioning adjustment sprocket is rotatably arranged on the sprocket mounting plate.

[0011] Preferably, a top limit block is provided at the top of the frame, and a bottom limit block is provided at the bottom of the frame.

[0012] Preferably, the bottom of the frame is provided with leveling legs.

[0013] Preferably, the driving device includes a driving motor and a reducer, the driving motor is drivingly connected to the reducer, and the reducer is drivingly connected to the driving sprocket.

[0014] As described above, a filter element lifting and conveying device of the utility model has the following beneficial effects: the filter element lifting and conveying device of the utility model can realize automatic handling and conveying of semi-finished filter elements between workstations at different heights. Compared with the manual handling in the prior art, it can greatly reduce labor intensity and labor costs, and also greatly improve the handling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a front view of the filter element lifting and conveying device provided by the utility model.

[0016] Figure 2 Shown is a side view of the filter element lifting and conveying device provided by the utility model.

[0017] Figure 3 Shown is a top view of the filter element lifting and conveying device provided by the utility model.

[0018] Figure 4 It shows a schematic diagram of the transmission relationship among the driving sprocket, the second driven sprocket and the transmission chain provided by the utility model.

[0019] Figure 5 Shown is a structural schematic diagram of the lifting and conveying platform provided by the utility model.

[0020] Figure 6 Display provided by the utility model Figure 2 Enlarged view of point A in the middle.

[0021] Description of Reference Numerals

[0022] 10 Rack

[0023] 11 Guide Rail

[0024] 20 Lifting conveyor

[0025] 21 Transmission components

[0026] 211 Active roller

[0027] 212 driven roller

[0028] 22 Position sensor

[0029] 23 Photoelectric sensor

[0030] 201 Horizontal pulley

[0031] 202 Vertical Pulley

[0032] 30 Drive unit

[0033] 31. Drive motor

[0034] 32 Reducer

[0035] 40 Drive sprocket

[0036] 41 driving sprocket

[0037] 42 First driven sprocket

[0038] 43 tensioning sprocket

[0039] 431 Sprocket mounting plate

[0040] 401 Drive chain

[0041] 4011 First connector

[0042] 4012 Second connector

[0043] 50 Second driven sprocket

[0044] 101 Top stopper

[0045] 102 bottom limit block

[0046] 103 Leveling Legs

[0047] 100 Semi-finished filter element

[0048] 10a First floor conveyor line

[0049] 10b Second floor conveyor line

[0050] 10c Three-layer conveyor line DETAILED DESCRIPTION

[0051] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0052] In the description of the present utility model, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0054] See also Figures 1 to 6It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the utility model, and the drawings only show the components related to the utility model rather than the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0055] The utility model provides a filter element lifting and conveying device, such as Figures 1 to 5 As shown, the filter element lifting and conveying device includes a frame 10, a lifting and conveying platform 20, a driving device 30 and a control system. Specifically, the frame 10 is provided with a guide rail 11 extending in the vertical direction, and the lifting and conveying platform 20 is slidably matched with the guide rail 11. A transmission component 21 is rotatably provided on the lifting and conveying platform 20, and a position sensor 22 is also provided on the lifting and conveying platform 20; a driving sprocket 40 is rotatably provided at the bottom of the frame 10, and a second driven sprocket 50 is rotatably provided at the top of the frame 10. The driving sprocket 40 and the second driven sprocket 50 are connected by a transmission chain 401, and the transmission chain 401 includes a first connecting end and a second connecting end, the first connecting end of the transmission chain 401 is connected to the top of the lifting and conveying platform 20, and the second connecting end of the transmission chain 401 is connected to the bottom of the lifting and conveying platform 20; the driving device 30 is used to drive the driving sprocket 40 to rotate, and the driving device 30 and the position sensor 22 are both communicatively connected to the control system.

[0056] When a filter element lifting and conveying device of the utility model is used, the filter element lifting and conveying device is set at a set position of the conveying line, that is, in the vertical direction, different heights of the guide rail 11 correspond to conveying lines of different heights. During operation, the lifting and conveying platform 20 is flush with the conveying line at the bottom. Based on the transmission of the conveying line and the rolling of the conveying assembly 21 on the lifting and conveying platform 20, the semi-finished filter element 100 is transported from the conveying line at the bottom to the lifting and conveying platform 20, and then the driving sprocket 40 is driven to rotate by the driving device 30, so that the driving sprocket 40 drives the transmission chain 401 to rotate, and then the transmission chain 401 drives the The lifting and conveying platform 20 rises. When the lifting and conveying platform 20 rises to be flush with the conveying line at a set height, the position sensor 22 on the lifting and conveying platform 20 will be triggered, so that the position sensor 22 sends a trigger signal to the control system. The control system controls the driving device 30 to stop working based on the trigger signal of the position sensor 22, so that the lifting and conveying platform 20 is suspended at a position flush with the conveying line at a set height, and then the semi-finished filter element 100 is transferred to the conveying line at the set height by the rotation of the conveying component 21 on the lifting and conveying platform 20, and the semi-finished filter element is transported to the next station by the conveying line at the set height. Therefore, the filter element lifting and conveying device of the utility model can realize automatic handling and transportation of semi-finished filter elements, which can greatly reduce labor intensity and labor costs compared with manual handling in the prior art, and also greatly improve the handling efficiency.

[0057] Specifically, Figure 2 and Figure 6 As shown, in this embodiment, guide rails 11 are provided on the front and rear sides of the frame 10, namely, the front guide rail and the rear guide rail, respectively, and slide grooves are provided on the front and rear guide rails. Pullies are provided on the front and rear sides of the lifting and conveying platform 20. The pulley on the front side of the lifting and conveying platform 20 can be slidably embedded in the slide groove on the front guide rail, and the pulley on the rear side of the lifting and conveying platform 20 can be slidably embedded in the slide groove on the rear guide rail.

[0058] Furthermore, in this embodiment, the slide groove on the guide rail 11 is U-shaped. Figure 6 As shown, the pulleys on both sides of the lifting and conveying platform 20 include a transverse pulley 201 and a vertical pulley 202. Specifically, the axis of the transverse pulley 201 and the axis of the vertical pulley 202 are perpendicular to each other, wherein the wheel surface of the transverse pulley 201 contacts the bottom wall of the chute, and the wheel surface of the vertical pulley 202 contacts the inner walls of both sides of the chute. Through this structural design, by setting the transverse pulley 201 and the vertical pulley 202 with axes perpendicular to each other to slide along the inner wall of the track 11, the shaking of the lifting and conveying platform 20 can be limited, that is, the lifting and conveying platform 20 can be constrained to move only in the up and down direction, thereby improving the stability of the movement of the lifting and conveying platform 20.

[0059] Further, such as Figure 3 and Figure 5 As shown, in this embodiment, the transmission component 21 includes an active roller 211 and a plurality of driven rollers 212 rotatably arranged on the lifting and conveying platform 20. The active roller 211 and the plurality of driven rollers 212 are connected to each other through a transmission belt. Specifically, the active roller 211 is an electric roller, and the active roller is electrically connected to the control system. Through this structural design, during operation, when the position sensor 22 on the lifting and conveying platform 20 is triggered, that is, when it is detected that the lifting and conveying platform 20 is lifted and moved to be flush with the conveying line at a set height, the control system controls the driving device 30 to stop the operation based on the trigger signal of the position sensor 22, and the control system also drives the active roller 211 to rotate at the same time, so that the active roller 211 drives the plurality of driven rollers 212 to rotate together, and then the semi-finished filter element 100 on the transmission component 21 can be transmitted to the corresponding conveying line.

[0060] Further, when the semi-finished filter element is transferred from the conveyor line to the lifting conveyor platform 20, i.e., the conveying assembly 21, or when the semi-finished filter element is transferred from the lifting conveyor platform 20 to the conveyor line, in order to automatically detect whether the semi-finished filter element is transferred to the right place, preferably, Figure 3 As shown, in this embodiment, a photoelectric sensor 23 is further provided on the lifting conveyor 20 and at one end close to the conveyor line. Through the provision of the photoelectric sensor, when the conveyor line at the bottom conveys the semi-finished filter element to the conveying assembly 21 on the lifting conveyor 20, the semi-finished filter element slowly moves to the conveying assembly 21 based on the rotation of the conveyor line and the conveying assembly 21. When the photoelectric sensor 23 detects that the semi-finished filter element is delivered to the position, that is, the semi-finished filter element is completely moved to the conveying assembly 21, the photoelectric sensor 23 sends a detection signal to the control system. Based on the detection signal of the photoelectric sensor 23, the control system promptly controls the conveying assembly 21, that is, the active roller 211, to stop rotating, and at the same time controls the driving device 30 to start, so as to lift the lifting conveyor 20 upward.

[0061] Further, such as Figure 1 and Figure 4As shown, in this embodiment, the driving sprocket 40 includes a driving sprocket 41, a first driven sprocket 42 and a tensioning adjustment sprocket 43. The first connection end of the driving chain 401 passes through the driving sprocket 41, the first driven sprocket 42 and the second driven sprocket 50 located at the top of the frame and then extends downward to connect with the top of the lifting and conveying platform 20. The second connection end of the transmission chain 401 passes through the driving sprocket 41 and the tensioning adjustment sprocket 43 and then extends upward to connect with the bottom of the lifting and conveying platform 20. Specifically, the height of the tensioning adjustment sprocket 43 can be adjusted up and down, and the driving device 30 can drive the driving sprocket 41 to rotate. During operation, the driving sprocket 41 is driven to rotate by the driving device 30, and the driving sprocket 41 will drive the transmission chain 401 to rotate, and when the transmission chain 401 rotates, it will drive the lifting and conveying platform 20 to move up and down. For example, when the driving device 30 drives the driving sprocket 41 to rotate clockwise, the driving sprocket 41 drives the transmission chain 401 to rotate clockwise, which drives the lifting and conveying platform 20 to rise; when the driving device 30 drives the driving sprocket 41 counterclockwise, the driving sprocket 41 drives the transmission chain 401 to rotate counterclockwise, which drives the lifting and conveying platform 20 to descend. In addition, during operation, according to actual needs, the height of the tensioning adjustment sprocket 43 can be adjusted up and down to adjust the tension of the transmission chain 401, which is more applicable.

[0062] Further, such as Figure 4 As shown, in this embodiment, the first connection end of the transmission chain 401 is provided with a first connector 4011, and the first connection end of the transmission chain 401 is connected to the top of the lifting and conveying platform 20 through the first connector 4011, and the second connection end of the transmission chain 401 is provided with a second connector 4012, and the second connection end of the transmission chain 401 is connected to the bottom of the lifting and conveying platform 20 through the second connector 4012. Specifically, in this embodiment, the transmission chain 401 is a roller chain.

[0063] Specifically, Figure 3 As shown, in this embodiment, the driving device 30 includes a driving motor 31 and a reducer 32 , the driving motor 31 and the reducer 32 are drivingly connected, and the reducer 32 is drivingly connected to the driving sprocket 40 .

[0064] Specifically, Figure 2 and Figure 3As shown, in the present embodiment, there are two groups of driving sprockets 40, and the two groups of driving sprockets 40 are respectively arranged on the front and rear sides of the bottom of the frame 10, wherein two active sprockets 41 in the two groups of driving sprockets 40 are arranged on a driving shaft 410, and the driving shaft 410 is rotatably arranged on the frame, and the driving shaft 410 is transmission-connected with the driving device 30, that is, the reducer 32. During operation, the driving shaft 410 is driven to rotate by the driving device 30, which will simultaneously drive the two active sprockets 41 to rotate; correspondingly, there are two second driven sprockets 50, and the two second driven sprockets 50 are respectively arranged on the front and rear sides of the top of the frame 10, and there are two transmission chains 401, one transmission chain 401 is wound around the driving sprocket 40 and the second driven sprocket 50 on the front side of the frame 10 and is connected to the lifting and conveying platform 20, and the other transmission chain 401 is wound around the driving sprocket 40 and the second driven sprocket 50 on the rear side of the frame 10 and is connected to the lifting and conveying platform 20.

[0065] Specifically, Figure 4 As shown, in this embodiment, the tensioning sprocket 43 is arranged on the frame 10 through a sprocket mounting plate 431, the sprocket mounting plate 431 is provided with a connecting hole, and the frame 10 is provided with a long hole extending in the vertical direction, and the sprocket mounting plate 431 is installed on the frame 10 by passing bolts through the connecting hole on the sprocket mounting plate 431 and the long hole on the frame 10. When it is necessary to adjust the height of the tensioning sprocket 43 to adjust the tension of the transmission chain 401, the bolts are loosened and the sprocket mounting plate 431 can move up and down along the extension direction of the long hole, so that the height of the sprocket mounting plate 431, i.e., the tensioning sprocket 43, can be adjusted, and then the tension of the transmission chain 401 can be adjusted.

[0066] Further, in order to prevent the lifting and conveying platform 20 from moving too high or too low and colliding with the frame 10 when moving up and down, it is preferred that Figure 2 As shown, in this embodiment, a top stopper 101 is provided at the top of the frame 10, and a bottom stopper 102 is provided at the bottom of the frame 10. Specifically, the top stopper 101 and the bottom stopper 102 are both made of rubber.

[0067] Further, such as Figure 1 As shown, in this embodiment, the bottom of the rack 10 is further provided with a leveling leg 103 , through which the height and levelness of the rack 10 can be adjusted.

[0068] When the filter element lifting and conveying device of the utility model is used, for example, Figure 1As shown, there are three conveyor lines corresponding to different heights of the guide rail 11 of the filter element lifting and conveying device, namely, a first-layer conveyor line 10a at the bottom, a second-layer conveyor line 10b at the middle, and a third-layer conveyor line 10c at the top. In the initial state, the lifting and conveying platform 20 is flush with the first-layer conveyor line 10a, and the product on the first-layer conveyor line 10a, namely, the semi-finished filter element 100, is transported to the lifting and conveying platform 20. When the photoelectric sensor 23 on the lifting and conveying platform 20 detects that the semi-finished filter element 100 is transported to the position, the photoelectric sensor 23 sends a detection signal to the control system. Based on the detection signal of the photoelectric sensor 23, the control system controls the transmission component 21, namely, the active roller 211 to stop rotating, and controls the drive device 30 to start, so as to drive the transmission chain 401 to rotate, and lift the lifting and conveying platform 20 upward. When the lifting and conveying platform 20 moves along the guide rail 11 to the position of the second-layer conveyor line 10b, the second-layer conveyor line 10b will trigger the position on the lifting and conveying platform 20. Sensor 22, the position sensor 22 transmits a trigger signal to the control system, and the control system promptly controls the drive device 30 to stop the operation based on the trigger signal of the position sensor 22, so that the lifting and conveying platform 20 is suspended at a position flush with the second-layer conveying line 10b. At the same time, the control system controls the conveying component 21 to rotate, so as to transfer the semi-finished filter element 100 on the lifting and conveying platform 20 to the second-layer conveying line 10b, and the semi-finished filter element is transported to the next station by the second-layer conveying line 10b. When the semi-finished filter element 100 is transported from the conveying component 21 to the second-layer conveying line 10b, the photoelectric sensor 23 will send a detection signal to the control system again, and the control system controls the conveying component 21 to stop rotating based on the detection signal. Then the lifting and conveying platform can perform the next cycle of operation. Similarly, the principle of transporting the semi-finished filter element from the first-layer conveying line 10a to the third-layer conveying line 10c is the same as above, so it will not be repeated here.

[0069] In summary, the filter element lifting and conveying device of the utility model can realize the automatic transportation of semi-finished filter elements between workstations at different heights, which can greatly reduce labor intensity and labor costs, and also greatly improve production efficiency. It effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0070] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A filter element lifting and conveying device, characterized in that: include: A frame (10), wherein the frame (10) is provided with a guide rail (11) extending in a vertical direction, A lifting and conveying platform (20), wherein the lifting and conveying platform (20) is slidably matched with the guide rail (11), a conveying component (21) is rotatably provided on the lifting and conveying platform (20), and a position sensor (22) is also provided on the lifting and conveying platform (20); A driving sprocket (40) is rotatably provided at the bottom of the frame (10), and a second driven sprocket (50) is rotatably provided at the top of the frame (10); the driving sprocket (40) and the second driven sprocket (50) are connected via a transmission chain (401), and the transmission chain (401) comprises a first connecting end and a second connecting end, the first connecting end of the transmission chain (401) is connected to the top of the lifting and conveying platform (20), and the second connecting end of the transmission chain (401) is connected to the bottom of the lifting and conveying platform (20); A driving device (30), the driving device (30) being used to drive the driving sprocket (40) to rotate; A control system, wherein the position sensor (22) and the drive device (30) are both communicatively connected to the control system.

2. A filter element lifting and conveying device according to claim 1, characterized in that: The frame (10) is provided with guide rails (11) on both the front and rear sides, and the guide rails (11) on both the front and rear sides are provided with slide grooves; the lifting and conveying platform (20) is provided with pulleys on both the front and rear sides, and the pulley on the front side of the lifting and conveying platform (20) can be slidably embedded in the slide groove on the front side guide rail, and the pulley on the rear side of the lifting and conveying platform (20) can be slidably embedded in the slide groove on the rear side guide rail.

3. A filter element lifting and conveying device according to claim 2, characterized in that: The slide groove is U-shaped, and the pulleys on the front and rear sides of the lifting and conveying platform (20) include a transverse pulley (201) and a vertical pulley (202), wherein the axis of the transverse pulley (201) and the axis of the vertical pulley (202) are perpendicular to each other, the wheel surface of the transverse pulley (201) contacts the bottom wall of the slide groove, and the wheel surface of the vertical pulley (202) contacts the two side walls of the slide groove.

4. The filter element lifting and conveying device according to claim 1, characterized in that: The transmission assembly (21) comprises a driving roller (211) and a plurality of driven rollers (212) rotatably arranged on the lifting and conveying platform (20); the driving roller (211) and the plurality of driven rollers (212) are connected to each other via a transmission belt; the driving roller (211) is electrically connected to the control system, and the driving roller (211) is a motorized roller.

5. The filter element lifting and conveying device according to claim 1, characterized in that: The lifting and conveying platform (20) is also provided with a photoelectric sensor (23).

6. The filter element lifting and conveying device according to claim 1, characterized in that: The driving sprocket (40) comprises a driving sprocket (41), a first driven sprocket (42) and a tensioning adjustment sprocket (43); the first connecting end of the transmission chain (401) passes around the driving sprocket (41), the first driven sprocket (42) and the second driven sprocket (50), and then extends downward to be connected to the top of the lifting and conveying platform (20); the second connecting end of the transmission chain (401) passes around the driving sprocket (41) and the tensioning adjustment sprocket (43), and then extends upward to be connected to the bottom of the lifting and conveying platform (20); wherein the height of the tensioning adjustment sprocket (43) can be adjusted up and down, and the driving device (30) is used to drive the driving sprocket (41) to rotate.

7. A filter element lifting and conveying device according to claim 6, characterized in that: The tensioning and adjusting sprocket (43) is arranged on the frame (10) via a sprocket mounting plate (431); the sprocket mounting plate (431) is provided with a connecting hole; the frame (10) is provided with a long hole extending in a vertical direction; the sprocket mounting plate (431) is mounted on the frame (10) by passing bolts through the connecting hole on the sprocket mounting plate (431) and the long hole on the frame (10); the tensioning and adjusting sprocket (43) is rotatably arranged on the sprocket mounting plate (431).

8. The filter element lifting and conveying device according to claim 1, characterized in that: A top limit block (101) is provided at the top of the frame (10), and a bottom limit block (102) is provided at the bottom of the frame (10).

9. The filter element lifting and conveying device according to claim 1, characterized in that: The bottom of the frame (10) is provided with leveling legs (103).

10. The filter element lifting and conveying device according to claim 1, characterized in that: The driving device (30) comprises a driving motor (31) and a reducer (32); the driving motor (31) is drivingly connected to the reducer (32); and the reducer (32) is drivingly connected to the driving sprocket (40).

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