CN215058408U

CN215058408U - Elastic mechanical sealing device for sewage pump

Info

Publication number: CN215058408U
Application number: CN202120313448.4U
Authority: CN
Inventors: 赵烨坚
Original assignee: Zhejiang Tianying Mechanical Seal Co ltd
Current assignee: Zhejiang Tianying Mechanical Seal Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-12-07
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses an elastic mechanical sealing device for a sewage pump, which comprises a left outer pipe, a right outer pipe, a feeding protective pipe, a discharging protective pipe, a transmission pipe, a supporting block, a movable block and an elastic supporting block, wherein a corrugated expansion pipe is fixedly connected to the outer wall periphery of the right end of the left outer pipe, a right outer pipe is fixedly connected to the outer wall periphery of the right end of the corrugated expansion pipe, a supporting block is fixedly connected to the outer wall periphery of the left outer pipe in sequence, a movable block is fixedly connected to the outer wall periphery of the right outer pipe in sequence, an elastic rod is fixedly connected to the right side of the supporting block close to the middle end, an elastic expansion cavity is arranged on the inner wall of the movable block, and the right end of the elastic rod is provided with an expansion spring through the inner wall of the elastic expansion cavity, which relates to the technical field of mechanical sealing devices, improves the coping ability and the sealing performance of the mechanical sealing structure when facing the transverse impact, and the coping ability and the sealing performance of the mechanical sealing structure when facing the longitudinal impact, the problem of operation vibration after the mechanical sealing structure is arranged is solved.

Description

Elastic mechanical sealing device for sewage pump

Technical Field

The utility model relates to a mechanical seal device technical field specifically is an elastic mechanical seal device for sewage pump.

Background

The sewage pump belongs to one of centrifugal impurity pumps, and has various forms, such as a submersible type sewage pump and a dry type sewage pump, wherein the most common submersible type sewage pump is a QW type submersible sewage pump, the most common dry type sewage pump is a W type horizontal sewage pump and a WL type vertical sewage pump, and the sewage pump is mainly used for conveying municipal sewage, excrement or a medium containing solid particles such as fibers, paper scraps and the like in liquid, so that a plurality of auxiliary matching devices such as mechanical sealing devices are required in the use of the sewage pump, but the mechanical sealing devices for the traditional sewage pump still have a plurality of problems in use.

Traditional mechanical seal device for sewage pump exists when using: 1. as the sewage pump pipeline can be subjected to the transverse impact of the pressurized sewage when in use, the problems of strength reduction and sealing damage can be caused in the transverse connection area after long-time use. 2. Meanwhile, the impact of the sewage pump pipeline after pressurization is not only transverse, but also can cause longitudinal impact damage to an externally wrapped sealing joint. 3. Meanwhile, vibration caused by the operation of the sewage pump can be transmitted to the sealing area, so that the problem of poor anti-vibration effect after the sealing area is arranged exists.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an elastic mechanical seal device for sewage pump has improved mechanical seal structure reply ability and leakproofness when facing horizontal impact, has promoted mechanical seal structure reply ability and leakproofness when facing vertical impact, has alleviated the operation vibrations problem after mechanical seal structure sets up.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an elastic mechanical seal device for sewage pump, includes left outer tube, right outer tube, advances the pillar, goes out the pillar, transmission pipe, supporting shoe, movable block and elasticity kicking block, the flexible pipe of ripple is connected to left outer tube right-hand member outer wall a week fixed connection, the flexible pipe right-hand member outer wall a week fixed connection right side outer tube of ripple, left outer tube outer wall a week fixedly connected with supporting shoe in proper order, the outer wall a week of right side outer wall pipe fixedly connected with movable block in proper order, the supporting shoe right side is close to the equal fixedly connected with elastic rod of middle-end department, the movable block inner wall all is equipped with the flexible chamber of elasticity, the elastic rod right-hand member all is equipped with expanding spring through the flexible intracavity wall of elasticity.

Preferably, transmission pipes are arranged on the inner wall of the left outer pipe in a circle, and transmission pipes are arranged on the inner wall of the right outer pipe in a circle.

Preferably, a pipe conveying sealing ring is arranged on the periphery of the outer wall of the middle section of the conveying pipe, elastic supporting blocks are sequentially arranged on the periphery of the outer wall of the pipe conveying sealing ring, and the elastic supporting blocks are fixedly connected with the left outer pipe.

Preferably, the inner wall of the left outer pipe is uniformly provided with first filling blocks by one circle of the outer wall of the transmission pipe, and the inner wall of the right outer pipe is uniformly provided with second filling blocks by one circle of the outer wall of the transmission pipe.

Preferably, the left side of the left outer pipe is provided with a feeding protection pipe through the transmission pipe outer wall in a circle, and the left end of the left outer pipe inner wall is provided with an end face sealing ring through the transmission pipe outer wall in a circle.

Preferably, a protection pipe is arranged on the right side of the right outer pipe through the transmission pipe in a circle, and an end face sealing ring is arranged at the right end of the inner wall of the right outer pipe through the transmission pipe in a circle.

(III) advantageous effects

The utility model provides an elastic mechanical sealing device for sewage pump. The method has the following beneficial effects:

(1) the elastic mechanical sealing device for the sewage pump is provided with a left outer pipe, a corrugated expansion pipe, a supporting block, a movable block, an elastic rod, an expansion spring and an elastic expansion cavity, when the mechanical sealing device encounters transverse impact after being arranged, the left outer pipe, the right outer pipe and an internal transmission pipe can generate left-right impact displacement, the supporting block is sequentially arranged on the periphery of the outer wall of the left outer pipe at the moment, the movable block is sequentially arranged on the periphery of the outer wall of the right outer pipe, the elastic rod is connected to the position, close to the middle end, of the right side of the supporting block, the inner wall of each movable block is provided with the elastic expansion cavity, and the right end of each elastic rod is provided with the expansion spring through the inner wall of the elastic expansion cavity, so that when the device is transversely impacted, a plurality of elastic rods can be supported in the elastic expansion cavity by virtue of the rebound of the expansion springs to contract and repeatedly absorb the force of the transverse impact, and gradually reduce the influence on a connecting area and a sealing structure, meanwhile, the corrugated expansion pipe arranged at the middle end can move for a certain elastic deformation stroke of the device, and the corresponding capability and the sealing property of the mechanical sealing structure in the face of transverse impact are improved because related structural parts are matched with each other.

(2) This kind of elastic mechanical seal device for sewage pump, through being equipped with left outer tube, right outer tube, transmission pipe and elasticity kickstand, when meetting longitudinal shock after the device sets up, because transmission pipe middle section outer wall a week is equipped with defeated pipe sealing ring, and be equipped with the elasticity kickstand in proper order through defeated pipe sealing ring outer wall a week, so when the device meets longitudinal shock, the transmission pipe can fully transmit the impact force to the elasticity kickstand region that a week was equipped with, the elasticity kickstand alright progressively dissolves with the stable stay that passes through left outer tube and right outer tube with the impact force, reduce the influence to inside seal structure and connection region, because the function is mutually supported to relevant structure spare part, so the reply ability and the leakproofness of mechanical seal structure when facing longitudinal shock have been promoted.

(3) This kind of elastic mechanical seal device for sewage pump, through being equipped with left outer tube, right outer tube, the transmission pipe, advance the pillar and go out the pillar, when being driven vibrations after the device sets up, because left outer tube left end is equipped with into the pillar, right outer tube right-hand member is equipped with out the pillar, so through extending the parcel to the pipeline outside at the device both ends, can promote the stability when anti-seismic is moved, left outer tube simultaneously, right outer tube outer end is through being equipped with horizontal elastic buffer results such as supporting shoe and movable block, the transmission pipe is equipped with in inside and all can carry out anti-seismic and move the buffering by bullet type bracer block, because relevant structure spare part mutually supports the function, so the operation vibrations problem after mechanical seal structure sets up has been alleviated.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a front sectional view of the overall structure of the present invention;

FIG. 3 is a partial sectional view of the support block area of the present invention;

fig. 4 is a front view of the overall structure of the present invention.

In the figure: the device comprises a left outer pipe-1, a right outer pipe-2, a protective inlet pipe-3, a protective outlet pipe-4, a transmission pipe-5, a supporting block-6, a movable block-7, an elastic rod-8, a telescopic spring-9, an elastic telescopic cavity-10, a corrugated telescopic pipe-11, a transmission pipe sealing ring-12, an elastic supporting block-13, a first filling block-14, an end face sealing ring-15 and a second filling block-16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention provides a technical solution: an elastic mechanical sealing device for a sewage pump comprises a left outer pipe 1, a right outer pipe 2, a feeding protection pipe 3, a discharging protection pipe 4, a transmission pipe 5, a supporting block 6, a movable block 7 and an elastic supporting block 13, wherein a corrugated expansion pipe 11 is fixedly connected to the outer wall of the right end of the left outer pipe 1 for a circle and can provide a certain elastic expansion stroke, the outer wall of the right end of the corrugated expansion pipe 11 for a circle is fixedly connected to the right outer pipe 2 for a circle and can wrap and connect the outer end strokes of the left outer pipe 1 and the right outer pipe 2, the supporting block 6 is fixedly connected to the outer wall of the left outer pipe 1 for a circle in sequence and can stably support an external elastic rod 8, the movable block 7 is fixedly connected to the outer wall of the right outer pipe for a circle and can movably support the external elastic rod 8 and an expansion spring 9, the elastic rod 8 is fixedly connected to the right side of the supporting block 6 close to the middle end, and the inner wall of the movable block 7 is provided with an elastic expansion cavity 10, and the right ends of the elastic rods 8 are provided with telescopic springs 9 through the inner walls of the elastic telescopic cavities 10. The elastic buffering can be performed from the outside.

All be equipped with transmission pipe 5 in 1 inner wall a week of left outer tube, 2 inner walls of right outer tube all are equipped with transmission pipe 5 in a week, can the whole route of overall structure wrap up transmission pipe 5 comprehensively, extension parcel route promotes stability.

5 middle section outer wall a week of transmission pipe is equipped with defeated tub sealing ring 12, can be by forming one tentatively sealed the innermost, defeated tub sealing ring 12 outer wall a week is equipped with elasticity kicker 13 in proper order, the left outer tube 1 of elasticity kicker 13 fixed connection can promote the longitudinal elastic buffer through inside being equipped with elasticity kicker 13 in proper order.

First filling blocks 14 are uniformly arranged on the inner wall of the left outer pipe 1 by the outer wall of the transmission pipe 5 in a circle, second filling blocks 16 are uniformly arranged on the inner wall of the right outer pipe 2 by the outer wall of the transmission pipe 5 in a circle, and the inner walls of the left outer pipe 1 and the right outer pipe 2 can be completely filled with the filling materials to continuously maintain the internal sealing performance of the device.

The left side of the left outer pipe 1 is provided with a protective pipe 3 through a transmission pipe 5 outer wall for a circle, the left end of the inner wall of the left outer pipe 1 is provided with an end face sealing ring 15 through a transmission pipe 5 outer wall for a circle, and the sealing performance and the anti-vibration effect of the left end of the device can be further improved through the matching of the protective pipe 3 and the end face sealing ring 15.

The right side of the right outer pipe 2 is provided with an outlet protective pipe 4 through the transmission pipe 5 in a circle, the right end of the inner wall of the right outer pipe 2 is provided with an end face sealing ring 15 through the transmission pipe 5 in a circle, and the sealing performance and the anti-vibration effect of the right end of the device can be further improved through the matching of the outlet protective pipe 4 and the end face sealing ring 15.

The working principle is as follows: when the device is used, an operator needs to install and connect the elastic mechanical sealing device and a sewage pump pipeline in a related matching way, when the mechanical sealing device encounters transverse impact after being arranged, the left outer pipe 1, the right outer pipe 2 and the transmission pipe 5 inside the device all generate left and right impact displacement, at the moment, a supporting block 6 is sequentially arranged on one circle of the outer wall of the left outer pipe 1, a movable block 7 is sequentially arranged on one circle of the outer wall of the right outer pipe 2, elastic rods 8 are connected to the right sides of the supporting blocks 6 close to the middle ends, elastic telescopic cavities 10 are respectively arranged on the inner walls of the movable blocks 7, telescopic springs 9 are respectively arranged at the right ends of the elastic rods 8 through the inner walls of the elastic telescopic cavities 10, the elastic rods 8 can be supported in the elastic telescopic cavities 10 by virtue of resilience of the telescopic springs 9 to contract and absorb transverse impact force in a reciprocating manner, meanwhile, corrugated telescopic pipes 11 arranged at the middle ends can move for a certain elastic deformation stroke of the device, when the device encounters longitudinal impact after being arranged, because 5 middle section outer walls a week of transmission pipe is equipped with defeated pipe sealing ring 12, and be equipped with elasticity kicker 13 in proper order through defeated pipe sealing ring 12 outer wall a week, transmission pipe 5 can fully transmit the impact force to the elasticity kicker 13 region that a week was equipped with, elasticity kicker 13 alright progressively dissolve with the stable stay of impact force through left outer tube 1 and right outer tube 2, through advancing pillar 3, go out the leakproofness and the anti-seismic effect at pillar 4 and the cooperation of terminal surface sealing ring 15 can further promote the device both ends, first packing block 14 and second packing block 16 can be through all being equipped with the packing at left outer tube 1 and the 2 inner walls of right outer tube comprehensively, continuously keep the inside leakproofness of device.

The utility model discloses a: the utility model relates to a sewage pump, which comprises a left outer pipe-1, a right outer pipe-2, an inlet protective pipe-3, an outlet protective pipe-4, a transmission pipe-5, a supporting block-6, a movable block-7, an elastic rod-8, a telescopic spring-9, an elastic telescopic cavity-10, a corrugated telescopic pipe-11, a transmission pipe sealing ring-12, an elastic supporting block-13, a first filling block-14, an end face sealing ring-15 and a second filling block-16, wherein the components are all universal standard components or components known by technicians in the field, the structure and principle of the components can be known by technicians or conventional experimental methods, the problem solved by the utility model is 1. the traditional sewage pump mechanical sealing device has the transverse impact of sewage after pressurization when the sewage pump pipeline is used, just use the problem that the horizontal connection region just can produce intensity reduction and leakproofness damaged after a long time, 2 traditional sewage pump is with mechanical seal device exists when using impact behind the sewage pump pipeline pressure boost simultaneously and is not only horizontal, can constitute vertical impact damage problem to the sealed knot of outside parcel simultaneously, 3 traditional sewage pump is with mechanical seal device also can transmit to sealed regional region when using the vibrations that bring when having simultaneously sewage pump operation, so there is sealed region to set up the poor problem of back antidetonation effect, the utility model discloses a mutual combination of above-mentioned parts, improved mechanical seal structure reply ability and leakproofness when facing horizontal impact, promoted mechanical seal structure reply ability and leakproofness when facing vertical impact, alleviated the operation vibrations problem after mechanical seal structure sets up.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an elastic mechanical seal device for sewage pump which characterized in that: including left outer tube (1), right outer tube (2), advance pillar (3), go out pillar (4), transmission pipe (5), supporting shoe (6), movable block (7) and elasticity kickstand (13), left side outer tube (1) right-hand member outer wall a week fixed connection has the flexible pipe of ripple (11), flexible pipe of ripple (11) right-hand member outer wall a week fixed connection right outer tube (2), left side outer tube (1) outer wall a week is fixedly connected with supporting shoe (6) in proper order, right side outer wall pipe outer wall a week is fixedly connected with movable block (7) in proper order, the equal fixedly connected with elastic rod (8) of department near the middle part in supporting shoe (6) right side, movable block (7) inner wall all is equipped with elastic stretching chamber (10), elastic rod (8) right-hand member all is equipped with expanding spring (9) through elastic stretching chamber (10) inner wall.

2. The elastic mechanical seal device for the sewage pump according to claim 1, wherein: and a transmission pipe (5) is arranged on one circle of the inner wall of the left outer pipe (1), and a transmission pipe (5) is arranged on one circle of the inner wall of the right outer pipe (2).

3. The elastic mechanical seal device for the sewage pump according to claim 2, wherein: a pipe conveying sealing ring (12) is arranged on the periphery of the outer wall of the middle section of the conveying pipe (5), elastic supporting blocks (13) are sequentially arranged on the periphery of the outer wall of the pipe conveying sealing ring (12), and the elastic supporting blocks (13) are fixedly connected with the left outer pipe (1).

4. The elastic mechanical seal device for the sewage pump according to claim 1, wherein: first filling blocks (14) are uniformly arranged on the inner wall of the left outer pipe (1) by the transmission pipe (5) in a circle, and second filling blocks (16) are uniformly arranged on the inner wall of the right outer pipe (2) by the transmission pipe (5) in a circle.

5. The elastic mechanical seal device for the sewage pump according to claim 1, wherein: the left side of the left outer pipe (1) is provided with a feeding protection pipe (3) through the transmission pipe (5) in a circle, and the left end of the inner wall of the left outer pipe (1) is provided with an end face sealing ring (15) through the transmission pipe (5) in a circle.

6. The elastic mechanical seal device for the sewage pump according to claim 1, wherein: the right side of the right outer pipe (2) is provided with a protective pipe (4) through the transmission pipe (5) in a circle, and the right end of the inner wall of the right outer pipe (2) is provided with an end face sealing ring (15) through the transmission pipe (5) in a circle.