CN206669146U

CN206669146U - A kind of sealing device

Info

Publication number: CN206669146U
Application number: CN201720412689.8U
Authority: CN
Inventors: 白振松
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-19
Filing date: 2017-04-19
Publication date: 2017-11-24
Anticipated expiration: 2027-04-19

Abstract

It the utility model is related to field of mechanical technique, specially a kind of sealing device, including the first connecting tube, the bottom of first connecting tube is plugged with the second connecting tube, the thread surface of first connecting tube is connected with upper shell, the thread surface of second connecting tube is connected with lower house, is contacted with each other at the top of the bottom of the upper shell and lower house, and the bottom on the upper shell surface is fixedly connected with connection ring.By setting upper shell, lower house, upper connection ring, lower connection ring, fixing bolt, briquetting, the first sealing rubber pad and the second sealing rubber pad to cooperate, realize the effect by the first connecting tube and the second connection seal of tube, avoid and leaked in gap of the fluid in pipe fitting between the first connecting tube and the second connecting tube, it not only avoid the waste of fluid, avoid the loss of economy, and avoid and leak caused harm with dangerous fluid, so as to improve security and practicality.

Description

A kind of sealing device

Technical field

Field of mechanical technique is the utility model is related to, specially a kind of sealing device.

Background technology

Mechanical seal refers to by least one pair of perpendicular to the end face of rotation axis in Fluid pressure and compensation mechanism elastic force The device for preventing fluid from leaking for keeping being bonded and forming with respect to slip under effect and under the cooperation of auxiliary seal, elastic force add Mounted mechanism and auxiliary seal be metallicity line pipe mechanical seal we be referred to as the wavy metal seal of tube, in light seal, also Have and make auxiliary seal using rubber bellows, rubber bellows elastic force is limited, generally requires and is aided with spring to meet to load bullet Power.

Mechanical seal is a kind of gland seal device of rotating machinery, for example centrifugal pump, centrifuge, reactor and compressor etc. are set It is standby, because power transmission shaft is applied in inside and outside equipment, a circumferential clearance between such axle and equipment be present, the medium in equipment passes through The gap leaks out, if pressure subatmospheric in equipment, air is to equipment internal leakage, it is therefore necessary to has a prevention The gland seal device of leakage, the species of axle envelope is a lot, because mechanical seal has the advantages that leakage rate is few and long lifespan, so mechanical Sealing is to be called end face seal in the most important sealing mode of these equipment, mechanical seal.

The sealing effectiveness of sealing device common at present is not ideal enough, so as to cause the fluid in pipe fitting between pipe fitting Leaked in gap, not only cause certain waste, cause certain economic loss, and fluid leakage might have necessarily Danger, so as to bring certain potential safety hazard.

Utility model content

The purpose of this utility model is to provide a kind of sealing device possess the advantages of good sealing effect, solve common Sealing device sealing effectiveness it is not ideal enough the problem of.

To achieve the above object, the utility model provides following technical scheme：A kind of sealing device, including the first connection Pipe, the bottom of first connecting tube are plugged with the second connecting tube, and the thread surface of first connecting tube is connected with upper shell, The thread surface of second connecting tube is connected with lower house, is contacted with each other at the top of the bottom of the upper shell and lower house, The bottom on the upper shell surface is fixedly connected with connection ring, and lower connection is fixedly connected with the top of the lower shell surface Ring, the upper connection ring are fixedly connected with lower connection ring by fixing bolt, are fixedly connected with the inwall of the lower connection ring Briquetting, the top of the briquetting sequentially pass through lower house and upper shell and extend to what upper enclosure inner wall opened up from top to bottom In groove, the first sealing rubber pad is fixedly connected with the inside of the briquetting, the inner side of first sealing rubber pad and the The surface of two connecting tubes contacts with each other, the inner side at the top of first sealing rubber pad and the bottom phase mutual connection of the first connecting tube Touch, the second sealing rubber pad, second sealing rubber pad are fixedly connected with the outside of the top of first sealing rubber pad Top sequentially pass through lower house and upper shell from top to bottom and extend to the inside of upper shell and the inside upper shell The inner side of two sealing rubber pads and the surface of the first connecting tube contact with each other, the surface of second sealing rubber pad and briquetting Inner side be fixedly connected.

Preferably, the position of corresponding first sealing rubber pad of the briquetting offers extruding groove, the extruding groove inwall Bottom be fixedly connected with extrusion spring, the one end of the extrusion spring away from extruding groove through extruding groove and is extended to outside it It is fixedly connected with the first sealing rubber pad.

Preferably, the position of corresponding second connecting tube of the first sealing rubber pad inwall offers compensated cavity, and described the The bottom of one sealing rubber pad by pressing spring with the bottom of lower house inwall by being fixedly connected.

Preferably, clamping piece is fixedly connected with the top of the lower house, the bottom of the upper shell offers and clamping The buckling groove that piece is used cooperatively, the top of the clamping piece through buckling groove and are extended to inside it.

Preferably, the first internal thread is offered at the top of the upper enclosure inner wall, first connecting tube passes through its surface The first external screw thread opened up is threadedly coupled with upper shell, and the bottom of the lower house inwall offers the second internal thread, and described The second external screw thread that two connecting tubes are opened up by its surface is threadedly coupled with lower house.

Compared with prior art, the beneficial effects of the utility model are as follows：

1st, the utility model by set upper shell, lower house, upper connection ring, lower connection ring, fixing bolt, briquetting, First sealing rubber pad and the second sealing rubber pad cooperate, and realize the effect by the first connecting tube and the second connection seal of tube Fruit, avoid and leaked in gap of the fluid in pipe fitting between the first connecting tube and the second connecting tube, not only avoid fluid Waste, avoid economy loss, and avoid with dangerous fluid leak caused by endanger, so as to improve safety Property and practicality.

2nd, the utility model enhances horizontally and vertically direction and seals rubber to first by setting extruding groove and extrusion spring The pressing force of rubber cushion, so that it is even closer between the first sealing rubber pad and the first connecting tube and the second connecting tube, strengthen The effect of sealing, by setting compensated cavity between the first sealing rubber pad and the second connecting tube, so as to avoid the first sealing Larger deformation is occurred by excessive pressure for rubber blanket, so as to avoid the first sealing rubber pad from ejecting the first connecting tube, Enhance the stability of structure, make sealing effectiveness more preferable, by setting clamping piece and buckling groove, so as to effectively by upper shell and Lower house is aligned, and is fixed so as to facilitate upper shell with lower house, makes the operation of device simpler convenient, and Add the accuracy and stability of device.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model front view.

Sequence number in figure：1 be the first connecting tube, 2 be the second connecting tube, 3 be upper shell, 4 be lower house, 5 be upper connection ring, 6 it is lower connection ring, 7 be fixing bolt, 8 be briquetting, 9 be the first sealing rubber pad, 10 be the second sealing rubber pad, 11 is crowded Indent, 12 be extrusion spring, 13 be compensated cavity, 14 be by pressing spring, 15 be that clamping piece and 16 is buckling groove.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Referring to Fig. 1, a kind of sealing device, including the first connecting tube 1, the bottom of the first connecting tube 1 are plugged with the second company Adapter 2, the thread surface of the first connecting tube 1 are connected with upper shell 3, the first internal thread are offered at the top of the inwall of upper shell 3, the The first external screw thread that one connecting tube 1 is opened up by its surface is threadedly coupled with upper shell 3, and the thread surface of the second connecting tube 2 connects Be connected to lower house 4, the bottom of the inwall of lower house 4 offers the second internal thread, the second connecting tube 2 opened up by its surface second External screw thread is threadedly coupled with lower house 4, and the bottom and the top of lower house 4 of upper shell 3 contact with each other, and the top of lower house 4 is consolidated Surely clamping piece 15 is connected with, the bottom of upper shell 3 offers the buckling groove 16 being used cooperatively with clamping piece 15, the top of clamping piece 15 Portion is through buckling groove 16 and extends to inside it, by setting clamping piece 15 and buckling groove 16, so as to effectively by the He of upper shell 3 Lower house 4 is aligned, and is fixed so as to facilitate upper shell 3 with lower house 4, makes the operation of device simpler convenient, And the accuracy and stability of device are added, the bottom on the surface of upper shell 3 is fixedly connected with connection ring 5, the table of lower house 4 Lower connection ring 6 is fixedly connected with the top of face, upper connection ring 5 is fixedly connected by fixing bolt 7 with lower connection ring 6, lower connection Be fixedly connected with briquetting 8 on the inwall of ring 6, the top of briquetting 8 sequentially pass through from top to bottom lower house 4 and upper shell 3 and Extend in the groove that the inwall of upper shell 3 opens up, the inner side of briquetting 8 is fixedly connected with the first sealing rubber pad 9, the first sealing The bottom of rubber blanket 9 by pressing spring 14 with the bottom of the inwall of lower house 4 by being fixedly connected, the corresponding first sealing rubber of briquetting 8 The position of rubber cushion 9 offers extruding groove 11, and the bottom of the extruding inwall of groove 11 is fixedly connected with extrusion spring 12, and extrusion spring 12 is remote One end from extruding groove 11 runs through extruding groove 11 and extends to its outside to be fixedly connected with the first sealing rubber pad 9, passes through setting Groove 11 and extrusion spring 12 are extruded, the pressing force of horizontally and vertically direction to the first sealing rubber pad 9 is enhanced, so that first It is even closer between the connecting tube 1 of sealing rubber pad 9 and first and the second connecting tube 2, strengthen the effect of sealing, the first sealing rubber The inner side of rubber cushion 9 and the surface of the second connecting tube 2 contact with each other, the position of corresponding second connecting tube 2 of the inwall of the first sealing rubber pad 9 Put and offer compensated cavity 13, by setting compensated cavity 13 between the first sealing rubber pad 9 and the second connecting tube 2, so as to avoid Larger deformation is occurred by excessive pressure for the first sealing rubber pad 9, so as to avoiding the first sealing rubber pad 9 by first Connecting tube 1 ejects, and enhances the stability of structure, makes sealing effectiveness more preferable, the inner side and first at the top of the first sealing rubber pad 9 The bottom of connecting tube 1 is contacted with each other, and the second sealing rubber pad 10 is fixedly connected with the outside of the top of the first sealing rubber pad 9, The top of second sealing rubber pad 10 sequentially passes through lower house 4 and upper shell 3 and the inside for extending to upper shell 3 from top to bottom With the inner side and the surface of the first connecting tube 1 of the second sealing rubber pad 10 inside upper shell 3 contact with each other, and second is close Envelope rubber blanket 10 surface be fixedly connected with the inner side of briquetting 8, by set upper shell 3, lower house 4, upper connection ring 5, under Connection ring 6, fixing bolt 7, briquetting 8, the first sealing rubber pad 9 and the second sealing rubber pad 10 cooperate, realize by First connecting tube 1 and the effect of the second connecting tube 2 sealing, the fluid avoided in pipe fitting connect from the first connecting tube 1 and second Leaked in gap between pipe 2, not only avoid the waste of fluid, avoid the loss of economy, and avoided with danger Property fluid leakage caused by endanger, so as to improve security and practicality.

In use, the first connecting tube 1 and upper shell 3 are threadedly coupled, the second connecting tube 2 and lower house 4 are threadedly coupled, Clamping piece 15 is caught in buckling groove 16 again, be tightened bolt 7.

In summary：The sealing device, by setting upper shell 3, lower house 4, upper connection ring 5, lower connection ring 6, fixation Bolt 7, briquetting 8, the first sealing rubber pad 9 and the second sealing rubber pad 10 cooperate, and solve common sealing device The problem of sealing effectiveness is not ideal enough.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

1. a kind of sealing device, including the first connecting tube, it is characterised in that：The bottom of first connecting tube is plugged with the second company Adapter, the thread surface of first connecting tube are connected with upper shell, and the thread surface of second connecting tube is connected with lower casing Body, contact with each other at the top of the bottom of the upper shell and lower house, the bottom on the upper shell surface is fixedly connected with company Ring is connect, lower connection ring is fixedly connected with the top of the lower shell surface, the upper connection ring passes through fixing bolt and lower connection Ring is fixedly connected, and is fixedly connected with briquetting on the inwall of the lower connection ring, and the top of the briquetting is from top to bottom successively Through lower house and upper shell and extend in the groove that upper enclosure inner wall opens up, is fixedly connected with the inside of the briquetting One sealing rubber pad, the inner side and the surface of the second connecting tube of first sealing rubber pad contact with each other, first sealing Inner side and the bottom of the first connecting tube at the top of rubber blanket are contacted with each other, and the outside at the top of first sealing rubber pad is fixed Be connected with the second sealing rubber pad, the top of second sealing rubber pad sequentially pass through from top to bottom lower house and upper shell and Extend to inside and the inner side of the second sealing rubber pad inside upper shell and the surface phase of the first connecting tube of upper shell Mutually contact, the surface of second sealing rubber pad on the inside of briquetting with being fixedly connected.

A kind of 2. sealing device according to claim 1, it is characterised in that：Corresponding first sealing rubber pad of the briquetting Position offer extruding groove, the bottom of the extruding groove inwall is fixedly connected with extrusion spring, and the extrusion spring is away from squeezing One end of indent runs through extruding groove and extends to its outside to be fixedly connected with the first sealing rubber pad.

A kind of 3. sealing device according to claim 1, it is characterised in that：The first sealing rubber pad inwall corresponding the The position of two connecting tubes offers compensated cavity, and the bottom of first sealing rubber pad passes through by pressing spring and lower house inwall Bottom is fixedly connected.

A kind of 4. sealing device according to claim 1, it is characterised in that：Card is fixedly connected with the top of the lower house Contact pin, the bottom of the upper shell offer the buckling groove being used cooperatively with clamping piece, and clamping is run through at the top of the clamping piece Groove and extend to inside it.

A kind of 5. sealing device according to claim 1, it is characterised in that：Is offered at the top of the upper enclosure inner wall One internal thread, the first external screw thread that first connecting tube is opened up by its surface are threadedly coupled with upper shell, the lower house The bottom of inwall offers the second internal thread, and second connecting tube passes through the second external screw thread that its surface opens up and lower house spiral shell Line connects.