Simple sealing device of rotary drum microstrainer

Abstract

The utility model discloses a simple sealing device of a rotary drum microfilter, the sealing structure comprises a sealing rubber strip support, the sealing rubber strip support is a semicircular structure matched with the end face of the water inlet end of a rotary drum, the height of a support plate at one end of the sealing rubber strip support is smaller than that of the other end, and a strip-shaped adjusting hole is vertically arranged on an end plate of a rack corresponding to the sealing rubber strip support. The high supporting plate of the sealing rubber strip support is fixed in the strip-shaped adjusting hole through a fixing bolt and can move up and down along the adjusting hole to adjust the position of the sealing rubber strip support, the supporting plate at the low end of the sealing rubber strip support extends to the position below the water inlet end of the rotary drum, and a semicircular sealing rubber strip matched with the sealing rubber strip support is arranged in the sealing rubber strip support. A clamping tail plate extends from the lower side of the sealing rubber strip to a supporting plate at the higher end of the sealing rubber strip support, a clamping groove allowing the clamping tail plate to be clamped in is formed in the sealing rubber strip support, and the upper side of the sealing rubber strip makes contact with the outer cylindrical face of the water inlet end of the rotary drum to form a sealing face. The structure is simple, the sealing rubber strip is convenient to replace, the sealing is reliable, and the use and maintenance difficulty of the drum microfilter is reduced.

Description

Technical Field

[0001] This utility model relates to the field of rotary drum microfiltration machines, specifically a simple sealing device for rotary drum microfiltration machines. Background Technology

[0002] The sealing device at the inlet of the rotary drum microfiltration machine has long been plagued by problems such as difficult installation and maintenance, and inadequate sealing.

[0003] In response to the difficulty in installing and maintaining the sealing device at the inlet of rotary drum microfiltration machines, manufacturers and users urgently need a sealing device that is simple in structure, reliable in sealing, and easy to install, maintain, and replace, in order to solve the industry's pain points, reduce the difficulty of using and maintaining rotary drum microfiltration machines, and reduce manufacturers' after-sales costs.

[0004] Current rotary drum microfiltration machines, such as Figure 1-3 As shown, the device includes a frame, which is U-shaped. A rotating drum is mounted between the left and right sides via a shaft. A screen is installed on the drum. A water inlet is located on one side of the frame, and an opening on the drum corresponding to the water inlet facilitates water intake. The water is filtered and exits through the screen. There is a gap between the water inlet of the drum and the end plate of the frame. The current sealing method involves a U-shaped bracket positioned between the end plate of the frame and the water inlet of the drum, with a sealing strip placed between the end of the bracket and the water inlet of the drum. (See CN 210796171 U). Figure 1 As shown. Due to frequent wear and tear on the drum, the sealing strip often breaks during use and is inconvenient to replace. Furthermore, the seal is not tight, making leaks likely. Utility Model Content

[0005] The purpose of this utility model is to provide a simple sealing device for a rotary drum microfiltration machine. It has a simple structure, is easy to replace the sealing strip, and provides a reliable seal, thereby reducing the difficulty of using and maintaining the rotary drum microfiltration machine.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a simple sealing device for a rotary drum microfiltration machine, comprising a frame and a rotary drum mounted on the frame, wherein there is a gap between the end face of the water inlet of the rotary drum and the end plate of the frame, and the frame is provided with a water inlet matching the water inlet, and a sealing structure is provided at the water inlet of the rotary drum, characterized in that: the sealing structure includes a sealing strip support, the sealing strip support is a semi-circular structure matching the outer cylindrical surface of the water inlet of the rotary drum, the cross-section of the sealing strip support is a U-shaped structure, the height of the support plate at one end is smaller than that at the other end, and the vertical direction of the sealing strip support on the end plate of the frame is corresponding to the vertical direction of the sealing strip support. The sealing strip bracket is equipped with a strip-shaped adjustment hole. The higher support plate of the sealing strip bracket is fixed in the strip-shaped adjustment hole by fixing bolts, and the position of the sealing strip bracket can be adjusted by moving up and down along the adjustment hole. The lower support plate of the sealing strip bracket extends to the bottom of the water inlet end of the drum. A matching semi-circular sealing strip is provided inside the sealing strip bracket. The cross-section of the sealing strip is annular, and a snap-fit ​​tail plate extends from its lower side to the higher support plate of the sealing strip bracket. A snap-fit ​​groove is provided inside the sealing strip bracket for the snap-fit ​​tail plate to snap into. The upper side of the sealing strip contacts the outer cylindrical surface of the water inlet end of the drum to form a sealing surface.

[0007] During assembly, first fix the sealing strip bracket to the end plate of the frame with fixing bolts. The position of the sealing strip bracket in the strip adjustment hole can be adjusted to create a gap between it and the lower end of the water inlet of the drum, which facilitates the installation and replacement of the sealing strip.

[0008] Sealing strip from Figure 1 Press the sealing strip bracket into the left side while simultaneously rotating the drum counterclockwise. The sealing strip is drawn into the sealing strip bracket as the drum rotates, and the sealing strip protrudes from the right end of the sealing strip bracket, thus completing the installation of the sealing strip.

[0009] After the sealing strip is installed, adjust the position of the sealing strip bracket so that the sealing strip contacts the outer cylindrical surface of the drum's inlet to achieve a seal. The sealing strip is flattened by the drum, increasing the seal width and achieving a better seal.

[0010] In the above solution: The top surfaces at both ends of the sealing strip are respectively provided with sealing strip baffles to press down the two ends of the sealing strip. The sealing strip baffles prevent the ends of the sealing strip from coming off during use.

[0011] In the above scheme: the sealing strip baffle includes a first sealing strip baffle, a second sealing strip baffle, and a third sealing strip baffle. The first and second sealing strip baffles are arranged side by side at one end of the sealing strip, with the first sealing strip baffle located on the outer side. One end of the first and second sealing strip baffles is fixed to the top surface of the frame by a pressure plate fixing bolt. The other end of the second sealing strip baffle extends to the upper side of the sealing strip and presses it down. An adjusting plate extends outward from the top of the sealing strip bracket. The other end of the first sealing strip baffle extends to the upper side of the adjusting support plate and is connected to the adjusting plate by a first adjusting bolt. A second adjusting bolt is also provided on the first sealing strip baffle. The lower end of the second adjusting bolt rests against the top of the adjusting plate without passing through it.

[0012] One end of the third sealing strip baffle is fixed to the top surface of the frame by a pressure plate fixing bolt, and the other end extends to the upper side of the sealing strip end to press the sealing strip. The third sealing strip baffle is also connected to the adjusting plate of the sealing strip bracket by a first adjusting bolt. The third sealing strip baffle is also provided with a second adjusting bolt, and the lower end of the second adjusting bolt rests on the top of the adjusting plate without passing through the adjusting plate.

[0013] During assembly, the sealing strip bracket is first fixed to the end plate of the frame with fixing bolts, but does not need to be tightened for easy vertical adjustment. When vertical adjustment of the sealing strip bracket is required, simply rotate the first adjusting bolt to pull the sealing strip bracket upwards, or rotate the second adjusting bolt to adjust the sealing strip bracket downwards, facilitating the removal and insertion of the sealing strip. The first and second adjusting bolts work together to move the sealing strip bracket vertically without needing to adjust the fixing bolts.

[0014] When it is necessary to replace or insert the sealing strip, simply remove the second sealing strip baffle, rotate the drum clockwise to pull out the sealing strip; then press the sealing strip in through the left inlet, rotate the drum counterclockwise to insert the sealing strip into the sealing strip bracket; then install the second sealing strip baffle; rotate the first and second adjusting bolts to move the sealing strip bracket upwards, flattening the sealing strip and increasing the sealing width. Finally, tighten the sealing strip bracket fixing bolts.

[0015] In the above scheme: a retaining plate is provided inside the sealing strip bracket. One end of the retaining plate is fixed to the lower end of the higher support plate of the sealing strip bracket, and the other end extends to the middle of the sealing strip bracket. A retaining groove is formed between the retaining plate and the bottom surface of the sealing strip bracket.

[0016] Beneficial effects;

[0017] Compared with existing technologies, the sealing strip of this invention has a larger sealing width and better sealing effect. Through the cooperation of the strip-shaped adjustment hole, the first and second adjustment bolts, and the sealing strip pressure plate, the sealing strip support can be adjusted up and down, thus facilitating the replacement of the sealing strip. This sealing device features a simple structure, reliable sealing, and easy installation, maintenance, and replacement, solving industry pain points, reducing the difficulty of using and maintaining rotary drum microfiltration machines, and lowering after-sales costs. Attached Figure Description

[0018] Figure 1 This is a front view of the rotary drum microfilter of this utility model.

[0019] Figure 2 This is a side view of the rotary drum microfilter of this utility model.

[0020] Figure 3 for Figure 2 Enlarged view of the uniform distribution at point A.

[0021] Figure 4 This is a top view of a rotary drum microfilter.

[0022] Figure 5 for Figure 4 An enlarged view of the water inlet of a rotary drum microfilter.

[0023] Figure 6 for Figure 4 Sectional view 1-1.

[0024] Figure 7 for Figure 4 Sectional view 2-2.

[0025] Figure 8 for Figure 4 Sectional view 3-3.

[0026] Figure 9 for Figure 4 Sectional view 4-4. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] like Figure 1-9As shown, the simple sealing device for the rotary drum microfiltration machine includes a frame 1 and a rotary drum 2 mounted on the frame 1. There is a gap between the end face of the water inlet end of the rotary drum 2 and the end plate 101 of the frame. The frame 1 is provided with a water inlet 102 that matches the water inlet end. A sealing structure is provided at the water inlet end of the rotary drum 2. This is existing technology and will not be described in detail here. Unlike existing technologies, the sealing structure includes a sealing strip bracket 3, which is a semi-circular structure that matches the outer cylindrical surface of the drum's inlet end. This means the sealing strip bracket 3 matches the lower half of the drum. The sealing strip bracket 3 has a U-shaped cross-section, with the support plate at one end being shorter than the other. A strip-shaped adjustment hole 103 is vertically positioned on the end plate 101 of the frame 1 corresponding to the sealing strip bracket. The higher support plate of the sealing strip bracket 3 is fixed in the strip-shaped adjustment hole 103 by fixing bolts 301. By loosening the fixing bolts 301, the position of the sealing strip bracket 3 can be adjusted by moving it up and down along the adjustment hole 103. The length of the adjustment hole 103 is 3-5mm, just long enough to facilitate the insertion and removal of the sealing strip. The lower end of the sealing strip bracket 3 extends to below the water inlet of the drum 2. A matching semi-circular sealing strip 4 is installed inside the sealing strip bracket 3. The sealing strip 4 has an annular cross-section, and a snap-fit ​​tail plate 401 extends from its lower side towards the higher end of the sealing strip bracket 3. The sealing strip bracket 3 has a slot for the snap-fit ​​tail plate to engage. Specifically, a snap-fit ​​plate 302 is installed inside the sealing strip bracket 3. One end of the snap-fit ​​plate 302 is fixed to the lower end of the higher end of the sealing strip bracket 3, and the other end extends to the middle of the sealing strip bracket. A slot is formed between the snap-fit ​​plate 302 and the bottom surface of the sealing strip bracket. There is a gap between the snap-fit ​​plate 302 and the annular body of the sealing strip to ensure that the snap-fit ​​plate 302 does not interfere with the sealing strip after flattening. The upper side of the sealing strip 4 contacts the outer cylindrical surface of the water inlet of the drum to form a sealing surface.

[0029] The top surfaces at both ends of the sealing strip 4 are respectively provided with sealing strip baffles to press down the two ends of the sealing strip 4, preventing the sealing strip 4 from coming out.

[0030] Specifically: The sealing strip baffle includes a first sealing strip baffle 5, a second sealing strip baffle 6, and a third sealing strip baffle 7. The first sealing strip baffle 5 and the second sealing strip baffle 6 are arranged side by side at one end of the sealing strip (left end in the figure), with the first sealing strip baffle 5 located on the outer side. One end of the first sealing strip baffle 5 and the second sealing strip baffle 6 are fixed to the top surface of the frame by a pressure plate fixing bolt 8. The other end of the second sealing strip baffle 6 extends to the upper side of the sealing strip 4, pressing down on the sealing strip 4. An adjusting plate 303 extends outward from the top of the sealing strip bracket 3. The other end of the first sealing strip baffle 5 extends to the upper side of the adjusting plate 303 and is connected to the adjusting plate 303 by a first adjusting bolt 9. A second adjusting bolt 10 is also provided on the first sealing strip baffle 5. The lower end of the second adjusting bolt 10 rests on the top of the adjusting plate without passing through the adjusting plate 303.

[0031] The third sealing strip baffle 7 is located at the right end. One end of the third sealing strip baffle 7 is fixed to the top surface of the frame 1 by a pressure plate fixing bolt, and the other end extends to the upper side of the end of the sealing strip 4 to press the sealing strip 4. The third sealing strip baffle 7 and the adjusting plate of the sealing strip bracket 3 are also connected by the first adjusting bolt 9. The third sealing strip baffle is also provided with a second adjusting bolt 10. The lower end of the second adjusting bolt 10 rests on the top of the adjusting plate without passing through the adjusting plate 303.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A simple sealing device for a rotary drum microfiltration machine, comprising a frame and a rotary drum mounted on the frame, wherein there is a gap between the end face of the water inlet end of the rotary drum and the end plate of the frame, the frame is provided with a water inlet matching the water inlet end, and a sealing structure is provided at the water inlet end of the rotary drum, characterized in that: The sealing structure includes a sealing strip bracket, which is a semi-circular structure that matches the outer cylindrical surface of the drum's water inlet end. The sealing strip bracket has a U-shaped cross-section, with the height of one end of the support plate being less than that of the other end. A strip-shaped adjustment hole is vertically provided on the end plate of the frame corresponding to the sealing strip bracket. The higher support plate of the sealing strip bracket is fixed in the strip-shaped adjustment hole by fixing bolts, and the position of the sealing strip bracket can be adjusted up and down along the adjustment hole. The lower support plate of the sealing strip bracket extends below the water inlet end of the drum. A matching semi-circular sealing strip is provided inside the sealing strip bracket. The sealing strip has an annular cross-section, and a snap-fit ​​tail plate extends from its lower side towards the higher support plate of the sealing strip bracket. A snap-fit ​​groove is provided inside the sealing strip bracket for the snap-fit ​​tail plate to snap into. The upper side of the sealing strip contacts the outer cylindrical surface of the drum's water inlet end to form a sealing surface.

2. The simple sealing device for a rotary drum microfiltration machine according to claim 1, characterized in that: The top surfaces of both ends of the sealing strip are respectively provided with sealing strip baffles for pressing down the two ends of the sealing strip.

3. The simple sealing device for a rotary drum microfiltration machine according to claim 2, characterized in that: The sealing strip baffle includes a first sealing strip baffle, a second sealing strip baffle, and a third sealing strip baffle. The first and second sealing strip baffles are arranged side by side at one end of the sealing strip, with the first sealing strip baffle located on the outer side. One end of the first and second sealing strip baffles is fixed to the top surface of the frame by a pressure plate fixing bolt. The other end of the second sealing strip baffle extends to the upper side of the sealing strip and presses it down. An adjusting plate extends outward from the top of the sealing strip support. The other end of the first sealing strip baffle extends to the upper side of the adjusting support plate and is connected to the adjusting plate by a first adjusting bolt. A second adjusting bolt is also provided on the first sealing strip baffle. The lower end of the second adjusting bolt rests against the top of the adjusting plate without passing through it.

4. The simple sealing device for a rotary drum microfiltration machine according to claim 3, characterized in that: One end of the third sealing strip baffle is fixed to the top surface of the frame by a pressure plate fixing bolt, and the other end extends to the upper side of the sealing strip end to press the sealing strip. The third sealing strip baffle is also connected to the adjusting plate of the sealing strip bracket by a first adjusting bolt. The third sealing strip baffle is also provided with a second adjusting bolt, and the lower end of the second adjusting bolt rests on the top of the adjusting plate without passing through the adjusting plate.

5. The simplified sealing device for a rotary drum microfilter according to any one of claims 1-4, characterized in that: The sealing strip bracket is equipped with a retaining plate. One end of the retaining plate is fixed to the lower end of the higher support plate of the sealing strip bracket, and the other end extends to the middle of the sealing strip bracket. A retaining groove is formed between the retaining plate and the bottom surface of the sealing strip bracket.

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