CN209511405U - Pipe joint sealing device - Google Patents
Pipe joint sealing device Download PDFInfo
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- CN209511405U CN209511405U CN201822254794.0U CN201822254794U CN209511405U CN 209511405 U CN209511405 U CN 209511405U CN 201822254794 U CN201822254794 U CN 201822254794U CN 209511405 U CN209511405 U CN 209511405U
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Abstract
The utility model discloses a kind of pipe joint sealing devices, the device includes elastic component (3) and elastic component (3) can be applied with axial force and make the connector of elastic component (3) generation radial deformation, connector includes connecting rod (2) and the fastener (6) connecting with connecting rod (2), elastic component (3) is located between connecting rod (2) and fastener (6), and the joint face at connecting rod (2) both ends is vertical with the axis of connecting rod (2).The sealing device is by applying axial force to elastic component, fit closely elastic component with pipe fitting inner wall, realize the sealing to pipe fitting, the pipe fitting high pressure seal good airproof performance of the utility model, and the sealing device structure is simple, manufacturing procedure is few, easy to operate, economical rationality, it can reuse, the high pressure sealing technical field applied to various container pipe fittings.
Description
Technical field
The utility model relates to a kind of sealing device, in particular to a kind of pipe joint sealing device.
Background technique
Industrial container, especially pressure vessel are often related to being arranged in the non-flange on these pressure vessels
Head sealing technique, such as pressure vessel need for pipe fittings all on container to be sealed when carrying out pressure testing, and there are also criticize
Buret or heat exchanger tube need to carry out pressure seal to tube end when carrying out pressure testing.
Conventional sealing technique means are tested and are closed when pressure testing in pipe nozzle welded seal lid using welding technique
After lattice, then removal capping is cut, but the sealing technique means have the disadvantage that 1, need reserved adapter tube cutting surplus, cost
It is high；2, line up is also needed to carry out the programs such as groove processing after cutting removal capping, it is complicated for operation, it is at high cost；3, it reuses
Rate is low, less economical.
Therefore, need to develop a kind of manufacturing procedure be simple and convenient to operate, convenient disassembly, reusable and economical rationality
Pipe joint sealing device.
Utility model content
In order to overcome the above problem, present inventor has performed sharp studies, develop a kind of pipe joint sealing device, the dress
It sets including elastic component and the connector that axial force can be applied to elastic component and make elastic component that radial deformation occur, connector includes
Connecting rod and fastener, elastic component are set between connecting rod and fastener, by shortening the distance between connecting rod and fastener,
So that radially outer elastic deformation occurs for elastic component, fit closely elastic component with inside pipe wall, increases elastic component and inside pipe wall
Stiction, sealed to be realized to pipe fitting, and the sealing device structure is simple, easy to operate, low in cost, Neng Gouchong
It is multiple to utilize, applied to the high pressure sealing technical field of various container pipe fittings, to complete the utility model.
The purpose of this utility model is to provide a kind of pipe joint sealing device, the sealing device include elastic component and
Axial force can be applied to elastic component and make the connector of elastic component generation radial deformation.
The connector includes connecting rod and the fastener that connect with connecting rod.
The joint face at the connecting rod both ends is vertical with the axis of connecting rod, wherein can extend into one end inside pipe fitting
For big end, the area of section of the other end (small end), the fastener and connecting rod are greater than perpendicular to the area in the section of axis
Small end connection.
The elastic component is between connecting rod and fastener, and the outer diameter of elastic component is less than the bore of pipe fitting, preferably
The elastic component is set in the small end of connecting rod.
The elastic component is elastic tube, and the shore hardness of elastic component is 50~100, preferably 65~85, more preferably 75；
The both ends of the elastic component are equipped with bellmouth, and bellmouth is tapered by the outer end face inward wall of elastic component 3, and the angle beta of bellmouth is 0
~180 °, preferably 60 °~90 °, more preferably 60 °.
The big end of the connecting rod cooperates close to the end face of small end and the bellmouth of elastic component, and the big end of connecting rod is close to small
End is equipped with the taper surface of revolution cooperated with elastic component bellmouth, the angle of the taper surface of revolution conical apex angle and the cone of elastic component
The angle beta in shape hole is consistent.
The number of elastic component is one or more, preferably greater than or equal to 2, collar, the top are equipped between any two elastic components
Snare is located at the small end of connecting rod.
The collar is equipped with the tapered surface cooperated with the bellmouth of elastic component, and two are equipped with preferably between any two elastic components
A collar, the end face that the outer diameter of two collars is big cooperate two-by-two.
Wherein, the small end of connecting rod is also arranged with washer, and one side and the fastener of the washer are engaged, washer it is another
It is engaged on one side with collar, the outer diameter of washer and fastener is less than the bore of pipe fitting.
The sub-assembly for applying torque is equipped in the small end of connecting rod, the sub-assembly is located at one of fastener far from elastic component
End, which includes specialized nut I, nut II and bar.
The specialized nut I, nut II are threadedly coupled with connecting rod, and the bar is connect with specialized nut I, and the axis of bar
Vertical with the axis of connecting rod, the both ends of the specialized nut I are respectively at least provided with a nut II.
Pipe joint sealing device provided by the utility model can obtain it is following the utility model has the advantages that
(1) pipe joint sealing device of the utility model is by shortening the distance between connecting rod and fastener to elastic component
Apply axial force, make elastic component that elastic deformation occur, be interference fitted with inside pipe wall, increases the static friction of elastic component and inside pipe wall
Power realizes the sealing of pipe fitting；
(2) sealing device of the utility model can apply torque by the sub-assembly of fastener or separate fastener, shorten
The distance between fastener and connecting rod apply axial force to elastic component, realize the sealing of pipe fitting；
(3) it is equipped with multiple elastic components in the sealing device of the utility model, is equipped between elastic component and to cooperate with elastic component
Collar, collar play the role of the transmitting of axial force, make elastic component by uniform axial force, and it is uniform that elastic component can be made to occur
Radially outer elastic deformation, fitted closely with inside pipe wall, sealing effect is good, is particularly suitable for the higher field of sealed pressure
It closes, the sealed pressure of the sealing device of the utility model can reach 100MPa；
(4) sealing device structure of the utility model is simple and convenient to operate, is low in cost, can reuse, be suitable for
Various container nozzle high pressure sealing technical fields.
Detailed description of the invention
Fig. 1 shows a kind of pipe joint sealing device of embodiment of the utility model and the sectional view of pipe fitting；
Fig. 2 shows a kind of sectional views of the elastic component of embodiment of the utility model；
Fig. 3 shows a kind of sectional view of the collar of embodiment of the utility model；
Drawing reference numeral explanation:
1- pipe fitting；
2- connecting rod；
3- elastic component；
4- collar；
5- washer；
6- fastener；
7- specialized nut I；
8- bar；
9- nut II.
Specific embodiment
The utility model is further described below by attached drawing and preferred embodiment.Illustrated by these, this
The characteristics of utility model and advantage will become more apparent from clear.
Industrial container such as pressure vessel needs to carry out the pipe fitting on pressure vessel close when carrying out pressure testing
Envelope, pressure testing need to guarantee that pipe connects for the experiment carried out under high pressure conditions to container to guarantee going on smoothly for pressure testing
The leakproofness of head under high pressure.
According to the utility model, a kind of pipe joint sealing device is provided, which includes elastic component 3 and energy
Enough connectors for axial force being applied to elastic component 3 and make elastic component 3 that radial deformation occur.
In the utility model, elastic deformation can occur for elastic component 3, when being sealed to pipe fitting 1, by elastic component 3
It is placed in pipe fitting 1, by applying axial force to elastic component 3, elastic component 3 can be made to generate radial elastic deformation, radial elastic
Deformation is vertical with the axis of pipe fitting, and elastic component 3 can fit closely after radial elastic deformation occurs with inside pipe wall, elastic component 3
It is interference fitted with inside pipe wall, to realize the sealing of pipe fitting 1.
According to the utility model, after radial elastic deformation occurs for elastic component 3, the outer diameter of elastic component 3 will be greater than inside pipe wall
Outer diameter realizes that interference fit, elastic component 3 and inside pipe wall by adjusting fastener 6, increase the static friction of elastic component 3 and inside pipe wall
Power, in pipe be high pressure conditions when, still ensure that preferable sealing effect.
According to the utility model, connector includes connecting rod 2 and the fastener connecting with connecting rod 26.
In the utility model, the joint face at 2 both ends of connecting rod is vertical with the axis of connecting rod 2.
According to the utility model, one end that can extend into inside pipe fitting 1 of connecting rod 2 is big end, perpendicular to connection
The area in the section of the axis of bar 2 is greater than the area of section of the other end (small end).
According to a kind of preferred embodiment of the utility model, as shown in Figure 1, the big end of connecting rod 2 and small end be with
The revolving body that line is formed centered on the axis of connecting rod 2, the outer diameter of 2 big end of connecting rod are greater than the outer diameter of small end, preferably connecting rod 2
Small end be elongated rod shape, the length of 2 small end of connecting rod is greater than the length of big end, when being sealed to pipe fitting 1, connecting rod 2
Small end a part inside pipe fitting, another part is outside pipe fitting.
According to the utility model further preferred embodiment, the maximum outside diameter of the big end of connecting rod 2 is less than pipe fitting 1
Bore, to guarantee that the big end of connecting rod 2 can be completely into pipe fitting 1.
According to the utility model, as shown in Figure 1, the big end outer diameter of connecting rod 2 is after first becoming larger on the direction along small end
What is become smaller is rotational-like, so as to play certain buffer function to overpressure.
According to the utility model, fastener 6 is set in the small end of connecting rod 2, to realize the connection with connecting rod 2.
According to the utility model, connecting rod 2 is to be threadedly coupled with fastener 6, and connecting rod 2 is equipped with external screw thread, fastener 6
It is equipped with internal screw thread, it is preferable that connecting rod 2 is the rod piece that a terminal adds screw thread, and fastener 6 is that can be threadedly engaged with connecting rod 2
Nut II, as shown in Figure 1.
For elastic component 3 between connecting rod 2 and fastener 6, the outer diameter of elastic component 3 is less than the bore of pipe fitting 1, elasticity
Part 3 can extend into pipe fitting 1, after the flexible deformation perpendicular to 1 axis direction of pipe fitting occurs for elastic component 3, elastic component 3
Outer diameter increases and is adjacent to the internal diameter of pipe fitting 1 to realize the sealing of pipe fitting 1.
According to the utility model, elastic component 3 is set in the small end of connecting rod 2, and preferably elastic component 3 is elastic tube, elastic component 3
Internal diameter be greater than 2 small end of connecting rod outer diameter, by shorten connecting rod 2 and fastener 6 distance, elastic component 3 can be applied
Axial force, elastic component 3 is by occurring elastic deformation after axial force.
The utility model people discovery, elastic component 3 may be radially inward bullet by the elastic deformation occurred after axial force
Property deformation, it is also possible to be radially outer elastic deformation, will lead to if radially inward elastic deformation occurs elastic component 3 generation
Unstability collapses, and cannot be bonded with 1 inner wall of pipe fitting, cannot achieve sealing, therefore, it is necessary to guarantee that radial direction can only occur for elastic component 3
Outside elastic deformation.
According to the utility model, as shown in Fig. 2, elastic component 3 is elastic tube, preferably hollow elastic tube, elastic component 3
Both ends are equipped with bellmouth, and bellmouth is tapered by the outer end face inward wall of elastic component 3, and the angle beta of bellmouth is 0~180 °, preferably
For 60 °~90 °, more preferably 60 °.
According to the utility model, as shown in Fig. 2, the internal diameter of elastic component 3 is greater than the outer diameter with the small end of connecting rod 2, elasticity
The outer diameter of part 3 is less than the internal diameter of pipe fitting 1, the preferably contact surface of the outer wall of the inner wall of elastic component 3 and 2 small end of connecting rod and connection
The axis of 2 small end of bar is parallel.
According to the utility model, the outer diameter for being set in the elastic component 3 in connecting rod 2 is less than the internal diameter of pipe fitting 1, that is, works as bullet
Property part 3 be set on the small end of connecting rod 2 after, outer diameter of the elastic component 3 when being not affected by axial force be less than pipe fitting 1 internal diameter,
It is sealed to guarantee that the sealing device can extend into pipe fitting 1.
According to the utility model, the big end of connecting rod 2 cooperates close to the end face of small end and the bellmouth of elastic component 3.Connection
The big end of bar 2 is equipped with the taper surface of revolution cooperated with 3 bellmouth of elastic component, the conical apex angle of the taper surface of revolution close to small end
Angle it is consistent with the angle beta of the bellmouth of elastic component 3, the taper surface of revolution and bullet of connecting rod 2 are made when to adjust fastener 6
The taper internal surface of hole of property part 3 is bonded and compresses completely, to realize sealing.
According to the utility model, the number of elastic component 3 is one or more, preferably greater than or equal to 2.
According to the utility model, it is equipped with collar 4 between elastic component 3, collar 4 can be set on the small end of connecting rod 2, preferably
Collar 4 is rotational-like, and its axis is overlapped with the axis of connecting rod 2, and collar 4 is equipped with to be cooperated with the bellmouth of elastic component 3
Tapered surface, as shown in figure 3, since 3 both ends of elastic component are inside tapered surface, collar 4 is to when squeezing elastic component 3
Outside tapered surface, collar 4 squeeze elastic component 3, so that radially outer elastic deformation, bullet can only occur for elastic component 3
Property part 3 outer wall be bonded with inside pipe wall, realize sealing, also, collar 4 can play the role of transmit axial force, make each bullet
Property 3 uniform force of part, deformation is controllable, be particularly suitable for sealed pressure it is higher when.
According to the utility model, since the both ends of each elastic component 3 are equipped with inside tapered surface, collar 4 is outside
Tapered surface, to guarantee that multiple elastic components 3 are fitted closely with collar 4, set between two elastic components 3 there are two collar 4, two collars
The big end face of 4 outer diameters fits closely.
According to the increase of sealed pressure, ferrule can be realized by increasing the quantity of elastic component 3 and collar 4.
According to the utility model, the small end of connecting rod 2 is also arranged with washer 5, and the one side of washer 5 is contacted with fastener 6 matches
It closes, the end face that the another side of washer 5 is big with the outer diameter of collar 4 is engaged, and the outer diameter of washer 5 and fastener 6 is less than pipe fitting 1
Bore so that washer 5 and fastener 6 are able to enter in pipe fitting.
According to the utility model, be in close contact with washer 5 be collar 4 the big end face of outer diameter, thus elastic component 3, top
Circle 4, connecting rod 2, washer 5 and fastener 6 form sealing section.It is right by shortening the distance between connecting rod 2 and fastener 6
Elastic component 3 applies axial force, and since collar 4 acts on the transmitting of axial force, so that 3 uniform force of elastic component, deformation is controllable, makes
It obtains elastic component 3 and elastic deformation and inside pipe wall interference fit occurs, realize and seal, the quantity by increasing elastic component 3 and collar 4 can
Suitable for the higher occasion of sealed pressure, this sealing device can realize 0.1~100MPa of sealed pressure range.
According to the utility model, elastic component 3 is made of soft or with foam performance high molecular material, preferably originally
The common material in field such as rubber (such as nitrile rubber, thermoplastic elastomer (TPE), ethylene propylene diene rubber), plastics (such as polyethylene
Plastics, igelite etc.) or rubber and plastics compound composition elastic tube, such as caoutchouc elasticity pipe is being under pressure
When elastic deformation can occur.
According to the utility model, the shore hardness of elastic component 3 is 50~100, preferably 65~85, more preferably 75.Bullet
Property part 3 hardness it is too big, it is difficult to elastic deformation occurs or need very big pressure just deformation occurs, cause sealing difficulty larger,
The hardness of elastic component 3 is too small, if sealed pressure is larger, elastic component 3 and the inner wall seal friction force of pipe fitting 1 are also larger,
The intensity deficiency of elastic component 3 easily leads to its frictional resistance and is not able to satisfy the requirement of axial force and generates sliding to make sealing lose
Effect.
According to the utility model, the sub-assembly for applying torque is equipped in the small end of connecting rod 2, which is set to fastener
6 one end far from elastic component 3, are preferably disposed to the end of the small end of connecting rod 2.I.e. fastener 6 be located at elastic component 3 and sub-assembly it
Between.
According to the utility model, sub-assembly includes specialized nut I7, nut II9 and bar 8.Sub-assembly is small with connecting rod 2
To be threadedly coupled, specialized nut I7 and nut II9 are threadedly coupled with the small end of connecting rod 2 at end, and preferably nut II9 is two, point
Not She Yu specialized nut I7 both ends.Bar 8 is connect with specialized nut I7, and the axis of bar 8 is vertical with the axis of connecting rod 2.
The effect of axial force can be applied to elastic component 3 and collar 4 by shortening the distance between connecting rod 2 and fastener 6,
Applying axial force can be realized by two ways: on the one hand can be by turn fastener 6, preferably connecting rod 2 and fastener 6 is spiral shell
Line connection, by tightening fastener parts 6, so that the distance between connecting rod 2 and fastener 6 shorten；On the other hand, fixation fastener
6, by applying torque to bar 8, make connecting rod 2 that turn occur, so as to shorten the distance between connecting rod 2 and fastener 6.
According to the utility model, high pressure sealing can be carried out to pipe fitting using above-mentioned apparatus, for example, can be according to packet
The method for including following steps is sealed:
Step 1 prepares or installs pipe fitting high pressure seal；
According to the utility model, in step 1, the installation method of pipe fitting high pressure seal includes following sub-step:
Elastic component 3, collar 4, washer 5 and fastener 6 are set on the small end of connecting rod 2 by step 1).
According to the utility model, in step 1), the big end of elastic component 3 and connecting rod 2 cooperates, the big end of the outer diameter of collar 4
Face and washer 5 cooperate, and are required according to sealed pressure, and elastic component 3 is arranged between the big end and washer 5, fastener 6 of connecting rod 2
With collar 4, quantity meets the requirement of sealed pressure, is set between every two elastic component 3 there are two collar 4, and two collars 4 is outer
The big end face of diameter matches.
It, can be by tight to guarantee cooperation that elastic component 3, collar 4, washer 5 and fastener 6 and connecting rod 2 can be more stable
Firmware 6 apply pretightning force, the pretightning force should ensure that each part being set in connecting rod 2 can close contact, will not in pine
Bulk state.
Further include: sub-assembly is threadedly coupled by step 2) with the small end of connecting rod 2.
It can be in connecting rod 2 for convenience of the distance that torque shortens connecting rod 2 and fastener 6 is applied according to the utility model
Small end setting is threadedly coupled sub-assembly, and a nut II9 is mounted in connecting rod 2 first, then installs specialized nut I7 simultaneously
It is fitted closely with nut II9, is wherein connected with bar 8 on specialized nut I7, then again connects another nut II9 and connecting rod 2
Nut I7 is met and fitted closely, is located at specialized nut I7 between two nut II9, passes through two nut II9's and nut I7
Fit closely the fixation realized to specialized nut I7.
The sealing device is extend into pipe fitting 1 by step 2, applies torque to fastener 6 or sub-assembly.
According to the utility model, in step 2, it will be ready to or mounted high pressure seal extend into pipe fitting 1,
Torque is applied to fastener 6 or sub-assembly, shortens the distance between fastener 6 and connecting rod 2, to realize sealing.
According to the utility model, the device of step 1 is extend into pipe fitting 1, the big end of connecting rod 2, elastic component 3, top
Circle 4 is in pipe fitting 1, and preferably washer 5 also is located in pipe fitting 1, and fastener 6 is located at outside pipe fitting, and closely pastes with washer 5
It closes, as shown in Figure 1.
By applying rotating torque to fastener 6, the distance between connecting rod 2 and fastener 6 can be shortened, preferably to connection
Bar 2 is to be threadedly coupled with fastener 6, by tightening fastener parts, applies axial force to elastic component 3, in the responsive to axial force of collar 4
Under, each elastic component 3 is in addition to by axial force also because the pyramidal structure of collar 4 is by the vertical force perpendicular to 1 axis of pipe fitting
Effect, and uniform force, deformation is controllable, and, which makes elastic component 3 that radially outer elastic deformation occur, elasticity
The outer diameter of part 3 increases and is adjacent to the internal diameter of pipe fitting 1, and due to the limitation of 1 internal diameter of pipe fitting, elastic component 3 and 1 inner wall of pipe fitting are real
It is now interference fitted, generates the pressure perpendicular to axis therebetween, so that axial stiction increases therebetween, to make
Entire sealing device plays the role of ferrule under the effect of the pressure.
By applying torque to sub-assembly, fastener 6 is fixed, torque is applied to bar 8, so that connecting rod 2 is to close to tight
The direction of firmware 6 rotates, so as to shorten the distance between connecting rod 2 and fastener 6, so that elastic component 3 occurs radially outward
Elastic deformation, fitted closely with inside pipe wall, realize pipe fitting 1 sealing.
According to the utility model, by the method that sealing device is dismantled from pipe fitting 1: it is (or fixed tight first to loosen fastener 6
Firmware 6 applies torque to bar 8 and loosens connecting rod 2), i.e. axial force between removal connecting rod 2 and fastener 6 makes elastic component 3
Outer diameter be decreased to that elastically-deformable state does not occur, the outer diameter of elastic component 3 is less than the internal diameter of pipe fitting 1, to unload in addition to bullet
The pressure of property part 3 and 1 inner wall of pipe fitting, that is, unload in addition to the stiction with inside pipe wall, so as to entirety by the sealing device from
It takes out in pipe fitting 1, completes disassembly, the sealing device convenient disassembly and reusable.
During container carries out pressure testing, leak detection, adoptable method are as follows: 1, liquid should be carried out to sealing structure
Pressure test: encapsulation boundary answers ne-leakage, no visible deformation and abnormal noise, and pressure should be kept not in pressure testing pressure maintaining period
Become；2, gas pressure test: without visible deformation and abnormal noise, encapsulation boundary can apply liquid soap or other leak detection liquid detections, pressure examination
Testing pressure in pressure maintaining period should remain unchanged.
The pipe joint sealing device of the utility model can be realized high pressure sealing, by the number for increasing elastic component 3 and collar 4
Amount is applicable to the higher occasion of sealed pressure, this sealing device can realize sealed pressure 0.1~100MPa of range, using protruding into
Elastic component in pipe fitting is bonded the sealing for realizing pressure with inside pipe wall, and detachable, avoids and uses in the prior art
The method for welding nozzle capping also avoids the step of later period cutting covers simultaneously processing tube orifice, and the sealing dress of the utility model
It sets that structure is simple, manufacturing procedure is few, easy to operate, can reuse, economical rationality, the sealing suitable for a variety of pipe fittings.
Embodiment
The pipe joint sealing device of the utility model is applied to nuclear steam generator equipment heat-transfer pipe pressure testing, is passed
Heat pipe specificationAnd the leakproofness of the sealing device (or air-tightness) is detected,
The leakproofness of nuclear steam generator equipment heat-transfer pipe is detected using the sealing device of the utility model, is sent out
Now at sealing without visible deformation and abnormal noise, liquid soap detection is applied without gas leakage, in pressure testing pressure maintaining period in encapsulation boundary
Pressure is constant, good airproof performance.
In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside", "front", "rear" etc.
The orientation or positional relationship of instruction is to be merely for convenience of retouching based on the orientation or positional relationship under utility model works state
State the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ",
" third ", " the 4th " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation "
" connected " " connection " should broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or the connection of one；
It can be mechanical connection, be also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with by intermediary, it can be with
It is the connection inside two elements.For the ordinary skill in the art, it can understand that above-mentioned term exists with concrete condition
Concrete meaning in the utility model.
Combine preferred embodiment and exemplary example that the utility model is described in detail above.But need sound
Bright, these specific embodiments are only the illustrative explanations to the utility model, not to the protection model of the utility model
Enclose composition any restrictions.It, can be to the utility model technology without departing from the spirit of the present invention and protection scope
Content and embodiments thereof carry out various improvement, equivalencing or modification, these each fall in the protection scope of the utility model.
The protection scope of the utility model is determined by the appended claims.
Claims (12)
1. a kind of pipe joint sealing device, which is characterized in that the sealing device includes elastic component (3) and can be to elastic component
(3) connector for applying axial force and making elastic component (3) that radial deformation occurs,
The connector includes connecting rod (2) and the fastener (6) connecting with connecting rod (2), and the elastic component (3) is located at connection
Between bar (2) and fastener (6),
The joint face at connecting rod (2) both ends is vertical with the axis of connecting rod (2), wherein it is internal to can extend into pipe fitting (1)
One end be big end, perpendicular to axis section area be greater than the other end area of section, the other end be small end, institute
Fastener (6) is stated to connect with the small end of connecting rod (2),
The both ends of the elastic component (3) are equipped with bellmouth, and bellmouth is tapered by the outer end face inward wall of elastic component (3), bellmouth
Angle beta be 0~180 °.
2. sealing device according to claim 1, which is characterized in that the outer diameter of elastic component (3) is less than the pipe of pipe fitting (1)
Internal diameter, the elastic component (3) are set in the small end of connecting rod (2).
3. sealing device according to claim 1, which is characterized in that the elastic component (3) is elastic tube, elastic component (3)
Shore hardness be 50~100；The angle beta of the bellmouth of elastic component (3) is 60 °~90 °.
4. sealing device according to claim 3, which is characterized in that the shore hardness of the elastic component (3) is 65~85.
5. sealing device according to claim 4, which is characterized in that the shore hardness of the elastic component (3) is 75.
6. sealing device according to claim 1, which is characterized in that the angle beta of the bellmouth of the elastic component (3) is
60°。
7. sealing device according to claim 1, which is characterized in that the big end of the connecting rod (2) is close to the end of small end
The bellmouth of face and elastic component (3) cooperates, and the big end of connecting rod (2) is equipped with close to small end to be cooperated with elastic component (3) bellmouth
The angle of the taper surface of revolution, the taper surface of revolution conical apex angle is equal with the angle beta of bellmouth of elastic component (3).
8. according to claim 1 to sealing device described in one of 7, which is characterized in that the number of elastic component (3) is one to multiple
It is a, collar (4) are equipped between any two elastic components (3), the collar (4) is set in the small end of connecting rod (2).
9. sealing device according to claim 8, which is characterized in that the number of elastic component (3) be more than or equal to 2, it is described
Collar (4) is equipped with the tapered surface cooperated with the bellmouth of elastic component (3), sets that there are two collars between any two elastic components (3)
(4), the big end face of the outer diameter of two collars (4) cooperates two-by-two.
10. sealing device according to claim 9, which is characterized in that the small end of connecting rod (2) is also arranged with washer (5),
The one side of the washer (5) is engaged with fastener (6), and another side and the collar (4) of washer (5) are engaged, washer (5)
It is less than the bore of pipe fitting (1) with the outer diameter of fastener (6).
11. sealing device according to claim 10, which is characterized in that be equipped in the small end of connecting rod (2) and apply torque
Sub-assembly, the sub-assembly be located at fastener (6) far from elastic component (3) one end, which includes (7) specialized nut I,
Nut II (9) and bar (8).
12. sealing device according to claim 11, which is characterized in that the specialized nut I (7), nut II (9) and company
Extension bar (2) is threadedly coupled, and the bar (8) connect with specialized nut I (7), and the axis of bar (8) and the axis of connecting rod (2) hang down
Directly, the both ends of the specialized nut I (7) are respectively at least provided with a nut II (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822254794.0U CN209511405U (en) | 2018-12-29 | 2018-12-29 | Pipe joint sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822254794.0U CN209511405U (en) | 2018-12-29 | 2018-12-29 | Pipe joint sealing device |
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| Publication Number | Publication Date |
|---|---|
| CN209511405U true CN209511405U (en) | 2019-10-18 |
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|---|---|---|---|
| CN201822254794.0U Active CN209511405U (en) | 2018-12-29 | 2018-12-29 | Pipe joint sealing device |
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| CN (1) | CN209511405U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294622A (en) * | 2021-05-28 | 2021-08-24 | 西安东新石油设备厂有限公司 | Be used for multistage sealing washer seal installation structure |
| CN113380090A (en) * | 2021-05-13 | 2021-09-10 | 中广核核电运营有限公司 | Executive instrument for installing and practicing executive joints of android |
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2018
- 2018-12-29 CN CN201822254794.0U patent/CN209511405U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113380090A (en) * | 2021-05-13 | 2021-09-10 | 中广核核电运营有限公司 | Executive instrument for installing and practicing executive joints of android |
| CN113294622A (en) * | 2021-05-28 | 2021-08-24 | 西安东新石油设备厂有限公司 | Be used for multistage sealing washer seal installation structure |
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