Mechanical sealing accessory with inner wall cleaning function

Abstract

The utility model discloses a mechanical sealing fitting with an inner wall cleaning function, which relates to the technical field of mechanical sealing fittings and comprises a sealing element, an end cover fixedly and hermetically connected to the right side of the sealing element, a flange rotatably sleeved outside the left side of the sealing element, and a water injection hole and a water drainage hole respectively arranged on the left side of the top of the sealing element and the right side of the bottom of the sealing element. According to the cleaning mechanism, when the shaft rod moves, the rotating drum can drive the cleaning brush to rotate to brush the inner wall of the sealing element, external clear water is injected into an inner cavity of the sealing element through the water injection hole to clean the inner wall, sewage is discharged from the water discharge hole, and meanwhile the driving disc can be driven to drive the push rod to push and pull the rotating drum to do reciprocating motion; therefore, the cleaning brush rotates and moves left and right at the same time, the brushing effect and the cleaning efficiency are improved, and practicability is higher; by means of the sealing assembly, the sealing performance between the butt-joint pipe and the rotary drum can be improved, and water or stains are prevented from entering the inner side of the butt-joint pipe when the inner wall of a sealing piece is cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical seal accessory technical field, concretely is a kind of mechanical seal accessory with inner wall cleaning function. BACKGROUND

[0002] With the continuous development of mechanical manufacturing industry, people's sealing requirements for mechanical parts are also constantly improved, mechanical seal refers to the device that is prevented from leaking by at least one pair of end faces perpendicular to the rotation axis under the action of fluid pressure and compensation mechanism elastic force and the cooperation of auxiliary seal, and relative sliding, mechanical seal is a kind of shaft seal device of rotating machinery, there are many kinds of shaft seals, since mechanical seal has the advantages of less leakage and long service life, so mechanical seal is the most important shaft sealing mode of these equipment in the world.

[0003] Patent library discloses a kind of mechanical seal accessory with inner wall cleaning function (grant announcement number CN212717968U), including sealing piece, sealing piece right side fixed sealing cover is combined with cover, located sealing piece left side outer fixed sleeve is connected with large bearing, large bearing outer fixed sleeve is connected with flange, located the small bearing of sealing piece left side wall middle position fixed embedding, located the shaft of small bearing Central horizontal right fixedly penetrates with axle rod.The utility model discloses a rotating drum with sponge brush is arranged, when axle rod is active, rotating drum rotates, rotating drum can drive the sponge brush on fixed rod to brush wash, the external clean water is injected into sealing piece inner chamber by water injection hole, the inner wall is cleaned, improve cleaning efficiency and effect, sewage is discharged from drain hole, it is more convenient to operate.

[0004] The above-mentioned mechanical seal accessory can drive the rotating drum and the sponge brush to rotate by the shaft to brush wash the sealing piece, but it can only rotate in a single direction, and it is difficult to clean some stubborn stains, and the cleaning effect of the above-mentioned method is relatively poor, and the practicability is relatively poor. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of mechanical seal accessory with inner wall cleaning function to solve the problems in prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mechanical seal accessory with an inner wall cleaning function, comprising a seal, an end cap fixedly and sealed to the right side of the seal, a flange rotatably sleeved on the left side of the seal, a water injection hole and a drain hole respectively opened on the top left side and bottom right side of the seal, a cleaning mechanism provided inside the seal, and a sealing component provided in the cleaning mechanism, the cleaning mechanism including a shaft, one end of which is rotatably mounted on the left side wall inside the seal, a rotating cylinder movably sleeved on the outer wall of one end of the shaft, mounting grooves symmetrically opened on the outer wall of the rotating cylinder, a fixing frame detachably installed in the mounting groove, a cleaning brush installed on one side wall of the fixing frame, guide rods symmetrically provided on the outer wall of one end of the shaft, and a sliding groove adapted to the combined structure of the shaft and guide rods opened on one end of the rotating cylinder.

[0007] Furthermore, the cleaning mechanism also includes a transmission box, which is rotatably sleeved on the outer side of the shaft away from the rotating drum. An inclined drive disc is sleeved on the outer wall of the shaft inside the transmission box. A push rod is provided below the drive disc, penetrating the right side wall of the transmission box. One end of the push rod is connected to a slider outside the transmission box. A groove adapted to the slider is opened at the left end of the rotating drum. Two rotating wheels are rotatably installed at the top of the left end of the push rod, and the rotating wheels are located on both sides of the drive disc. A connecting pipe is provided between the transmission box and the rotating drum, and the connecting pipe is located outside the push rod and the shaft. One end of the connecting pipe is inserted into a cavity opened inside one end of the rotating drum. The cleaning mechanism can drive the rotating drum to rotate and clean the inner wall of the seal when the shaft rotates, and can also drive the rotating drum to move the cleaning brush back and forth to clean the inner wall of the seal, thereby improving the cleaning effect, increasing cleaning efficiency, and enhancing practicality.

[0008] Furthermore, the sealing assembly includes an annular piston one, which is slidably installed in the chamber. The annular piston one is fixedly connected to one end of the connecting pipe. An annular piston two is slidably provided on the right side of the chamber. The right side of the annular piston two is fixedly connected to the right wall of the chamber by several springs, so as to improve the sealing between the transmission box and the rotating drum and prevent some water from flowing into the inside of the connecting pipe during cleaning.

[0009] Furthermore, the transmission box is located between two fixed frames, and the left side of the transmission box is symmetrically provided with inserts, and the left wall of the seal is provided with a slot that matches the inserts, so as to limit and fix the transmission box.

[0010] Furthermore, the slider has a convex cross-section, and the slider is slidably connected to the inner wall of the rail groove, which is annular to limit and guide the slider.

[0011] Further, the outer wall of the annular piston one and the annular piston two is sleeved with a sealing ring, and the flange and the shaft rod are rotatably connected with the sealing element through bearings, so that the sealing performance between the annular piston one, the annular piston two and the cavity is improved.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The utility model discloses a cleaning mechanism can make the rotary drum drive the cleaning brush to rotate to brush the inner wall of the sealing element when the shaft rod is movable, and the external clean water is injected into the inner chamber of the sealing element through the water injection hole to clean the inner wall, and the sewage is discharged from the drain hole, and the driving disc also drives the push rod to push and pull the rotary drum to reciprocate, so that the cleaning brush rotates and moves left and right simultaneously, the brushing effect and cleaning efficiency are improved, convenient to use, and the practicality is stronger.

[0014] 2、The utility model discloses a sealing assembly can improve the sealing performance between the butt joint pipe and the rotary drum, and water or stains are prevented from entering the inside of the butt joint pipe when the inner wall of the sealing element is cleaned. DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the section structure schematic view of the utility model;

[0017] Figure 3 It is the structure schematic view between the transmission case and the rotary drum of the utility model;

[0018] Figure 4 It is the structure schematic view between the shaft rod, the driving disc, the push rod and the sliding block of the utility model.

[0019] The figure reference:1, sealing element;2, end cover;3, flange;4, shaft rod;5, rotary drum;6, fixed frame;7, cleaning brush;8, transmission case;9, driving disc;10, push rod;11, sliding block;12, rotating wheel;13, butt joint pipe;14, annular piston one;15, guide rod;16, annular piston two;17, spring;18, insertion column;19, sliding groove;20, rail slot;21, installation slot;22, cavity. CONCRETE IMPLEMENTING METHOD

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.

[0021] Embodiment: asFigure 1 - Figure 4 As shown, this utility model provides a technical solution: a mechanical seal accessory with an inner wall cleaning function, including a seal 1, an end cap 2 fixedly and sealed to the right side of the seal 1, a flange 3 rotatably sleeved on the left side of the seal 1, a water injection hole and a drain hole respectively opened on the top left side and bottom right side of the seal 1, a cleaning mechanism is provided inside the seal 1, and a sealing component is provided in the cleaning mechanism. The cleaning mechanism includes a shaft 4, and one end of the shaft 4 is rotatably installed on the left side wall inside the seal 1. A rotating cylinder 5 is movably sleeved on the outer wall of one end of the shaft 4. The outer wall of the rotating cylinder 5 is symmetrically provided with mounting grooves 21. A fixing frame 6 is detachably installed in the mounting groove 21. A cleaning brush 7 is installed on one side wall of the fixing frame 6. A guide rod 15 is symmetrically provided on the outer wall of one end of the shaft 4. A sliding groove 19 adapted to the combined structure of the shaft 4 and the guide rod 15 is opened on one end of the rotating cylinder 5. In this example, the cleaning mechanism also includes a transmission box 8, which is rotatably sleeved on the outer side of the shaft 4 away from the rotating drum 5. An inclined drive disc 9 is sleeved on the outer wall of the shaft 4 inside the transmission box 8. A push rod 10 is provided below the drive disc 9, penetrating the right side wall of the transmission box 8. A slider 11 is connected to one end of the push rod 10 outside the transmission box 8. A rail groove 20 adapted to the slider 11 is opened at the left end of the rotating drum 5. Two rotating wheels 12 are rotatably installed at the top of the left end of the push rod 10, and the rotating wheels 12 are located on both sides of the drive disc 9. A connecting pipe 13 is provided between the transmission box 8 and the rotating drum 5. The connecting pipe 13 is located outside the push rod 10 and the shaft 4. One end of the connecting pipe 13 is inserted into the cavity 22 opened inside one end of the rotating drum 5. The cleaning mechanism can drive the rotating drum 5 to rotate and clean the inner wall of the seal 1 when the shaft 4 rotates. At the same time, it can also drive the rotating drum 5 to move the cleaning brush 7 back and forth to clean the inner wall of the seal 1, thereby improving the cleaning effect, increasing the cleaning efficiency, and enhancing practicality. In this example, the transmission box 8 is located between two fixed frames 6. Symmetrical inserts 18 are provided on the left side of the transmission box 8, and a slot adapted to the insert 18 is provided on the inner left wall of the seal 1 to limit and fix the transmission box 8. In this example, the slider 11 has a convex cross-section and is slidably connected to the inner wall of the rail groove 20. The rail groove 20 is annular to limit and guide the slider 11.

[0022] In this example, the sealing assembly includes an annular piston 14, which is slidably installed in the chamber 22. The annular piston 14 is fixedly connected to one end of the connecting pipe 13. An annular piston 26 is slidably disposed on the right side of the chamber 22. The right side of the annular piston 26 is fixedly connected to the right wall of the chamber 22 by several springs 17 to improve the sealing between the transmission box 8 and the rotating drum 5, preventing some water from flowing into the inner side of the connecting pipe 13 during cleaning. In this example, sealing rings are fitted on the outer walls of both the annular piston 14 and the annular piston 26. The flange 3 and the shaft 4 are rotatably connected to the seal 1 via bearings to improve the sealing between the annular piston 14, the annular piston 26, and the chamber 22.

[0023] The working principle of the utility model is: when using, when cleaning the inner wall of the sealing element 1, clean water can be injected into the sealing element 1 through the water injection hole, and the sewage of cleaning is discharged through the drain hole, at the same time, when the shaft rod 4 rotates, the shaft rod 4 drives the rotating drum 5 and the fixing frame 6 to rotate, and then drives the cleaning brush 7 to brush the sealing element 1, at the same time, the shaft rod 4 also drives the driving disc 9 to rotate, and the driving disc 9 drives the two rotating wheels 12 to drive the push rod 10 to reciprocate, and the push rod 10 drives the sliding block 11 to realize reciprocating sliding of the rotating drum 5 on the shaft rod 4, and then the cleaning brush 7 is driven to move synchronously, so that the cleaning brush 7 can rotate around the shaft rod 4 while reciprocating, the brushing effect of the inner wall of the sealing element 1 is improved, the cleaning effect and the cleaning efficiency are improved, it is convenient to use, and the practicability is stronger, and at the same time of reciprocating of the rotating drum 5, the butt joint pipe 13 drives the annular piston one 14 to slide in the cavity 22, and at the same time, the annular piston two 16 is pushed to extrude the spring 17, so that the movement of the rotating drum 5 is not affected, and the sealing property between the butt joint pipe 13 and the rotating drum 5 is ensured, and the practicability is stronger.

[0024] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A mechanical seal fitting with an internal wall cleaning function, comprising a seal (1), characterized in that: The sealing element (1) is fixedly sealed with an end cap (2) on the right side. A flange (3) is rotatably sleeved on the left side of the sealing element (1). A water injection hole and a drain hole are respectively opened on the top left side and bottom right side of the sealing element (1). A cleaning mechanism is provided inside the sealing element (1), and a sealing component is provided in the cleaning mechanism. The cleaning mechanism includes a shaft (4), and one end of the shaft (4) is rotatably installed on the left side wall inside the sealing element (1). A rotating cylinder (5) is movably sleeved on the outer wall of one end of the shaft (4). A mounting groove (21) is symmetrically opened on the outer wall of the rotating cylinder (5). A fixing frame (6) is detachably installed in the mounting groove (21). A cleaning brush (7) is installed on one side wall of the fixing frame (6). A guide rod (15) is symmetrically provided on the outer wall of one end of the shaft (4). A sliding groove (19) adapted to the combined structure of the shaft (4) and the guide rod (15) is opened on one end of the rotating cylinder (5).

2. The mechanical seal fitting with the inner wall cleaning function according to claim 1, characterized in that: The cleaning mechanism also includes a transmission box (8), which is rotatably sleeved on the outer side of the shaft (4) away from the rotating drum (5). The outer wall of the shaft (4) is fitted with an inclined drive disc (9) inside the transmission box (8). A push rod (10) penetrating the right side wall of the transmission box (8) is provided below the drive disc (9). A slider (11) is connected to one end of the push rod (10) outside the transmission box (8). A rail groove (20) adapted to the slider (11) is opened at the left end of the rotating drum (5). Two rotating wheels (12) are rotatably installed on the top of the left end of the push rod (10). The rotating wheels (12) are located on both sides of the drive disc (9). A connecting pipe (13) is provided between the transmission box (8) and the rotating drum (5). The connecting pipe (13) is located outside the push rod (10) and the shaft (4). One end of the connecting pipe (13) is inserted into a cavity (22) opened inside one end of the rotating drum (5).

3. The mechanical seal fitting with the inner wall cleaning function according to claim 2, characterized in that: The sealing assembly includes an annular piston (14), which is slidably installed in the chamber (22). The annular piston (14) is fixedly connected to one end of the connecting pipe (13). An annular piston (16) is slidably provided on the right side of the chamber (22). The right side of the annular piston (16) is fixedly connected to the right wall of the chamber (22) by a number of springs (17).

4. The mechanical seal fitting with the inner wall cleaning function according to claim 2, characterized in that: The transmission box (8) is located between two fixed frames (6). The transmission box (8) has symmetrically arranged inserts (18) on the left side, and the inner left wall of the sealing member (1) has a slot that matches the inserts (18).

5. The mechanical seal fitting with the inner wall cleaning function according to claim 2, characterized in that: The slider (11) has a convex cross section and is slidably connected to the inner wall of the rail groove (20), and the rail groove (20) is annular.

6. The mechanical seal fitting with the inner wall cleaning function according to claim 3, characterized in that: The outer walls of the first annular piston (14) and the second annular piston (16) are both fitted with sealing rings, and the flange (3) and the shaft (4) are rotatably connected to the seal (1) through bearings.

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