CN219176947U

CN219176947U - Underwater sealing device

Info

Publication number: CN219176947U
Application number: CN202223495524.1U
Authority: CN
Inventors: 朱心军; 陈祥勇; 韩骏; 陈菲; 季嘉馨; 宋佳
Original assignee: Qingdao Installation & Construction Co ltd
Current assignee: Qingdao Installation & Construction Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-13
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses an underwater sealing device, which comprises a sealing cover and a rotating shaft, wherein the rotating shaft is arranged in a through hole arranged in the middle of the sealing cover in a penetrating way, six countersunk holes are arranged on the left side of the sealing cover in an equidistant circumferential array manner, mounting bolts are respectively arranged at the left ends of the countersunk holes, a second sealing groove is arranged in the middle of the right side of the sealing cover, a third sealing gasket is arranged in the second sealing groove, the third sealing gasket is movably sleeved at the right end of the rotating shaft, and a protection unit is arranged on the left side surface of the sealing cover and comprises a protection sleeve, a connecting lug, an L-shaped fixing block, a stop screw, a first screw hole and a second screw hole.

Description

Underwater sealing device

Technical Field

The utility model relates to the technical field of stirring equipment, in particular to an underwater sealing device.

Background

Along with increasing importance of environmental protection work and increasing application of imported precise submersible stirrer equipment at foreign countries for sludge treatment, the stirring equipment rotates in sludge, and the sludge contains linear cotton yarns and garbage and is very easy to wind on a bearing mechanical seal at the rear end of an impeller, so that the original expensive and precise suit mechanical seal is severely worn;

at present, the mechanical seal is an integrated set, and needs to be replaced as a whole due to partial abrasion of the mechanical seal, and accessories need to be imported and sealed with the same brand of equipment, so that the purchase period is long, the parts are expensive, the parts are replaced frequently, the working efficiency is affected, and parts of the equipment, which are fixed, are easily abraded, are provided for the purpose, and the underwater sealing device is provided.

Disclosure of Invention

In view of the problems existing in the prior art, the utility model discloses an underwater sealing device, which adopts the technical scheme that the underwater sealing device comprises a sealing cover and a rotating shaft, wherein the rotating shaft is arranged in a through hole arranged in the middle of the sealing cover in a penetrating way, six countersunk holes are arranged on the left side of the sealing cover in a circumferential array at equal intervals, mounting bolts are respectively arranged at the left ends of the countersunk holes, a second sealing groove is arranged in the middle of the right side of the sealing cover, a third sealing gasket is arranged in the second sealing groove, the third sealing gasket is movably sleeved at the right end of the rotating shaft, and a protection unit is arranged on the left side surface of the sealing cover.

As a preferable technical scheme of the utility model, the protection unit comprises protection sleeves, connecting convex blocks, L-shaped fixing blocks, stop screws, first screw holes and second screw holes, wherein the L-shaped fixing blocks are four, the L-shaped fixing blocks are respectively arranged on the left side surface of the sealing cover in an equidistant circumferential array manner, the middle parts between the L-shaped fixing blocks are provided with the protection sleeves, the protection sleeves are movably sleeved at the left ends of the rotating shafts, the right ends of the outer sides of the protection sleeves are respectively provided with the four connecting convex blocks in an equidistant circumferential array manner, the middle parts of the outer sides of the L-shaped fixing blocks are respectively provided with the stop screws, and the stop screws are respectively in threaded connection with the first screw holes arranged in the middle parts of the L-shaped fixing blocks and the second screw holes arranged at the ends of the connecting convex blocks. The second screw hole on the connecting lug is connected with the first screw hole on the L-shaped fixing block through the stop-pair screw, so that the protective sleeve can be fixed on the left side of the sealing cover, the junction between the rotating shaft and the sealing cover can be protected by the protective sleeve, and the service life of the sealing cover is prolonged.

As a preferable technical scheme of the utility model, the protection unit further comprises a first sealing gasket, wherein the first sealing gasket is a silica gel pad, and the first sealing gasket is arranged on the right side surface of the protection sleeve and the connection protruding block. The first sealing gasket can improve the sealing effect between the protection sleeve and the sealing cover, and meanwhile, the protection sleeve and the connecting convex blocks can be prevented from being hard to be removed on the left side of the sealing cover after being installed and fixed, so that the protection sleeve which is damaged by abrasion is convenient for workers to replace.

As a preferable technical scheme of the utility model, sealing rings are respectively arranged between the mounting bolts and the countersunk holes, and the sealing rings are respectively movably sleeved at the right ends of the mounting bolts. Through the setting of sealing washer, can improve the gas tightness between mounting bolt and the counter bore, can avoid the mounting bolt "rust that fixes for a long time to die" inside the counter bore moreover, make things convenient for the staff to dismantle mounting bolt.

As a preferable technical scheme of the utility model, a first sealing groove is arranged in the middle of the right side of the sealing cover, the first sealing groove is positioned at the left end of a second sealing groove, a second sealing gasket is arranged in the first sealing groove, and the left side of the second sealing gasket is fixedly connected with the right side of a third sealing gasket.

The utility model has the beneficial effects that: according to the utility model, the protection sleeve is sleeved at the left end of the rotating shaft, the protection sleeve moves to the left side of the sealing cover, the protection sleeve is rotated, the connecting lug at the right end of the protection sleeve moves to the inner side of the L-shaped fixed block respectively, the second screw hole on the connecting lug corresponds to the first screw hole on the L-shaped fixed block up and down respectively, and then the stop screw is respectively arranged in the first screw hole and the second screw hole, so that the protection sleeve is fixed, the junction between the rotating shaft and the sealing cover can be protected by the protection sleeve, the service life of the sealing cover is prolonged, linear cotton yarns and garbage contained in sludge are prevented from being wound at the junction between the rotating shaft and the sealing cover to abrade the junction, the air tightness between the mounting bolt and the countersink can be improved through the arrangement of the sealing ring, and the mounting bolt fixed for a long time can be prevented from being 'rust' inside the countersink, so that a worker can conveniently dismount the mounting bolt;

to sum up, this sealing device under water, be convenient for install and change, and because of the part design that linear cotton yarn and rubbish wearing and tearing were changed in the mud is simple, durable not fragile, practice thrift the cost of maintenance equipment spare and accessory part purchase greatly, reduce cost, guarantee the work efficiency of equipment, can solve the mechanical seal that proposes among the above-mentioned prior art and be integrated suit, because of its partial wearing and tearing, need whole change, and the accessory needs import and the same brand of machine seal of equipment, purchase cycle is long, the part price is expensive, and frequent change, not only influence work efficiency, and the easy wearing and tearing equipment carries out the problem of fixed position to it moreover.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

fig. 3 is a schematic view of a partial enlarged structure of the present utility model at a.

In the figure: the sealing device comprises a sealing cover 1, a rotating shaft 2, a countersunk hole 3, a first sealing groove 4, a protection unit 5, a protection sleeve 51, a connection lug 52, a 53L-shaped fixing block, a 54 stop screw, a first screw hole 55, a second screw hole 56, a first sealing gasket 57, a second sealing groove 6, a second sealing gasket 7, a third sealing gasket 8, a mounting bolt 9 and a sealing ring 10.

Detailed Description

Example 1

As shown in fig. 1 to 3, the utility model discloses an underwater sealing device, which adopts the technical scheme that the underwater sealing device comprises a sealing cover 1 and a rotating shaft 2, wherein the rotating shaft 2 is installed in a penetrating hole arranged in the middle of the sealing cover 1, six countersunk holes 3 are arranged on the left side of the sealing cover 1 in an equidistant circumferential array, mounting bolts 9 are respectively arranged at the left ends of the countersunk holes 3, sealing rings 10 are respectively arranged between the mounting bolts 9 and the countersunk holes 3, the sealing rings 10 are respectively movably sleeved at the right ends of the mounting bolts 9, the sealing rings 10 which are movably sleeved at the outer sides of the mounting bolts 9 can improve the air tightness of the mounting bolts 9 in the countersunk holes 3, a second sealing groove 6 is arranged in the middle of the right side of the sealing cover 1, a third sealing gasket 8 is arranged in the middle of the second sealing groove 6, the third sealing gasket 8 is movably sleeved at the right end of the rotating shaft 2, a first sealing groove 4 is arranged in the middle of the right side of the sealing cover 1, the first sealing groove 4 is positioned at the left end of the second sealing groove 6, a second sealing gasket 7 is arranged in the first sealing groove 4, the left side of the second sealing gasket 7 is fixedly connected with the right side of the third sealing gasket 8, the second sealing gasket 7 and the second sealing gasket 8 are buckled in the first sealing groove 4 and the second sealing groove 6, thereby protecting the joint of the rotating shaft 2 and the sealing cover 1, further improving the sealing effect between the rotating shaft 2 and the sealing cover 1, the left side surface of the sealing cover 1 is provided with a protecting unit 5, the protecting unit 5 comprises a protecting sleeve 51, a connecting lug 52, an L-shaped fixing block 53, a stop screw 54, a first screw hole 55 and a second screw hole 56, the L-shaped fixing block 53 is provided with four, the L-shaped fixing blocks 53 are respectively arranged on the left side surface of the sealing cover 1 in an equidistant circumferential array, the middle part between the L-shaped fixing blocks 53 is provided with a protecting sleeve 51, the protection sleeve 51 is movably sleeved at the left end of the rotating shaft 2, four connecting convex blocks 52 are circumferentially arranged at the right end of the outer side of the protection sleeve 51 in an equidistant mode, stop screws 54 are respectively arranged in the middle of the outer side of the L-shaped fixing block 53, the stop screws 54 are respectively connected with first screw holes 55 arranged in the middle of the L-shaped fixing block 53 and second screw holes 56 arranged at the end parts of the connecting convex blocks 52 in a threaded mode, the protection sleeve 51 is sleeved at the left end of the rotating shaft 2 and moves to the left side of the sealing cover 1, the protection sleeve 51 is rotated, the connecting convex blocks 52 at the right end of the protection sleeve 51 are respectively moved to the inner side of the L-shaped fixing block 53, the second screw holes 56 on the connecting convex blocks 52 are respectively corresponding to the first screw holes 55 on the L-shaped fixing block 53 up and down, then the stop screws 54 are respectively arranged in the first screw holes 55 and the second screw holes 56, the protection sleeve 51 is fixed, the protection sleeve 51 can protect the junction between the rotating shaft 2 and the sealing cover 1, the service life of the protection unit 5 further comprises a first sealing cover 57, the first sealing cover 57 is arranged at the junction between the rotating shaft 2 and the sealing cover 1, the first sealing cover 57 is a linear sealing cover 57 and the junction between the sealing cover 1 and the sealing cover 1, the sealing effect between the sealing cover and the sealing cover 1 is prevented from being worn down, and the junction between the sealing cover and the sealing cover 1 is avoided.

The working principle of the utility model is as follows: the sealing cover 1 is mounted on a mechanical sealing position of an external equipment bearing, the sealing cover 1 is sleeved on the outer side of the rotating shaft 2, the mounting bolts 9 respectively penetrate through the countersunk holes 3 to be in threaded connection with external reserved holes, the sealing rings 10 movably sleeved on the outer sides of the mounting bolts 9 can improve the air tightness of the mounting bolts 9 in the countersunk holes 3, and meanwhile, the first sealing groove 4 and the second sealing groove 6 on the right side of the sealing cover 1 are buckled with the second sealing gasket 7 and the second sealing gasket 8 sleeved on the rotating shaft 2, so that the sealing effect between the rotating shaft 2 and the sealing cover 1 is further improved; after the sealing cover 1 is fixed, the protection sleeve 51 is sleeved at the left end of the rotating shaft 2, the protection sleeve 51 is moved to the left side of the sealing cover 1, the protection sleeve 51 is rotated, the connecting protruding blocks 52 at the right end of the protection sleeve 51 are respectively moved to the inner sides of the L-shaped fixing blocks 53, the second screw holes 56 on the connecting protruding blocks 52 are respectively vertically corresponding to the first screw holes 55 on the L-shaped fixing blocks 53, and then the stop screws 54 are respectively arranged in the first screw holes 55 and the second screw holes 56, so that the protection sleeve 51 is fixed, the junction between the rotating shaft 2 and the sealing cover 1 can be protected by the protection sleeve 51, the service life of the sealing cover 1 is prolonged, linear cotton yarns and garbage contained in sludge are prevented from being wound at the junction between the rotating shaft 2 and the sealing cover 1 to be worn, and after the protection sleeve 51 is damaged, the stop screws 54 are detached, the protection sleeve 51 can be detached from the L-shaped fixing blocks 53 by rotating the protection sleeve 51.

The components not described in detail herein are prior art.

Although the specific embodiments of the present utility model have been described in detail, the present utility model is not limited to the above embodiments, and various changes and modifications without inventive labor may be made within the scope of the present utility model without departing from the spirit of the present utility model, which is within the scope of the present utility model.

Claims

1. The utility model provides a sealing device under water, includes sealed lid (1) and pivot (2), through install pivot (2) in the through-hole that sealed lid (1) middle part set up, a serial communication port, the left side equidistance circumference array of sealed lid (1) is provided with six counter bores (3), the left end of counter bores (3) is provided with mounting bolt (9) respectively, the right side middle part of sealed lid (1) is provided with second seal groove (6), the inside of second seal groove (6) is provided with third sealed pad (8), and the right-hand member at pivot (2) of third sealed pad (8) movable set, the left side surface of sealed lid (1) is provided with protection element (5).

2. An underwater sealing device as in claim 1 wherein: the protection unit (5) contains protection sleeve (51), connecting lug (52), L shape fixed block (53), stop screw (54), first screw (55) and second screw (56), L shape fixed block (53) are provided with four, L shape fixed block (53) equidistance circumference array respectively sets up the left side surface at sealed lid (1), the middle part between L shape fixed block (53) is provided with protection sleeve (51), protection sleeve (51) movable sleeve is at the left end of pivot (2), the equidistant circumference array in outside right-hand member of protection sleeve (51) is provided with four connecting lug (52), the outside middle part of L shape fixed block (53) is provided with stop screw (54) respectively, stop screw (54) respectively with first screw (55) that set up in the middle part of L shape fixed block (53) and second screw (56) threaded connection that connecting lug (52) tip set up.

3. An underwater sealing device as in claim 1 wherein: the protection unit (5) further comprises a first sealing pad (57), the first sealing pad (57) is a silica gel pad, and the first sealing pad (57) is arranged on the right side surface of the protection sleeve (51) and the connection convex block (52).

4. An underwater sealing device as in claim 1 wherein: sealing rings (10) are respectively arranged between the mounting bolts (9) and the countersunk holes (3), and the sealing rings (10) are respectively movably sleeved at the right ends of the mounting bolts (9).

5. An underwater sealing device as in claim 1 wherein: the sealing cover is characterized in that a first sealing groove (4) is formed in the middle of the right side of the sealing cover (1), the first sealing groove (4) is located at the left end of a second sealing groove (6), a second sealing gasket (7) is arranged in the first sealing groove (4), and the left side of the second sealing gasket (7) is fixedly connected with the right side of a third sealing gasket (8).