CN209455669U - A kind of pipe line expansion joint and the Pneumatic pipe transmission system with the device - Google Patents
A kind of pipe line expansion joint and the Pneumatic pipe transmission system with the device Download PDFInfo
- Publication number
- CN209455669U CN209455669U CN201822099975.0U CN201822099975U CN209455669U CN 209455669 U CN209455669 U CN 209455669U CN 201822099975 U CN201822099975 U CN 201822099975U CN 209455669 U CN209455669 U CN 209455669U
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- Prior art keywords
- pipe group
- annular tooth
- expansion joint
- line expansion
- steel cylinder
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
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Abstract
The utility model discloses a kind of pipe line expansion joints, it include: internal diameter is identical and central axis is overlapped fixing pipe group and adjustable pipe group, the steel cylinder component being set in outside fixing pipe group and adjustable pipe group, fixing pipe group is fixedly connected with steel cylinder component, fixing pipe group is provided with first annular tooth along its circumferential direction, adjustable pipe group is provided with the second annular tooth with first annular tooth fit engagement, under first annular tooth and the second annular tooth meshing state, adjustable pipe group can be along the axial movement of steel cylinder component.Since fixing pipe group is identical as the internal diameter of adjustable pipe group, and fixing pipe group is overlapped with adjustable pipe group central axis, therefore, during first annular tooth and the second annular tooth fit engagement, the interior smooth of pipe line expansion joint, without step, scratch or card bottle are not will cause during the transmission of pneumatic transmission bottle, to improve efficiency of transmission.The invention also discloses a kind of Pneumatic pipe transmission systems including above-mentioned pipe line expansion joint.
Description
Technical field
The utility model relates to logistics pipeline technical fields, more specifically to a kind of pipe line expansion joint.This
Outside, the utility model further relates to a kind of Pneumatic pipe transmission system including above-mentioned pipe line expansion joint.
Background technique
Pneumatic pipe transmission system be it is a kind of using blower provide positive and negative air pressure push pneumatic transmission bottle in sealed tube
The logistic transmission system transmitted in road.Pipe line expansion joint is that one kind can axially carry out flexible dress along transmission pipeline
Set, can effective compensation outdoor metal pipeline in north cold area or day and night temperature larger area because of deformation caused by expanding with heat and contract with cold
Amount.
Pipeline expansion joint in the prior art is consolidated by the way of adjustable pipe group and fixing pipe group by axial and circumferential
It is fixed, realize the axial stretching of adjustable pipe group relative fixing tube group, while being provided with mutually in adjustable pipe group and fixing pipe group
The angled end-face of cooperation, when Pneumatic pipe occur axial stretching when, the distance between two angled end-faces with the stroke of Pneumatic pipe and
Variation.
During adjustable pipe group relative fixing tube group axial stretching, it can make that there is certain distance between two angled end-faces,
There are steps for part to make inside telescopic joint especially pneumatic transmission bottle pass through, cause certain shadow to the transmission of pneumatic transmission bottle
It rings, is especially influenced more very when stroke is excessive.Therefore, the flexible stroke of pipe line expansion joint in the prior art has
Limit.
In conclusion how to avoid pipe line expansion joint, there are steps during transmitting pneumatic transmission, are current sheets
Field technical staff's urgent problem to be solved.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of pipe line expansion joints, it is possible to prevente effectively from pipeline is stretched
There is card bottle or scratch during transmitting pneumatic transmission in casing coupling device.
The another object of the utility model is to provide a kind of pneumatic pipeline transmission system including above-mentioned pipe line expansion joint
System.
To achieve the goals above, the utility model provides the following technical solutions:
A kind of pipe line expansion joint, comprising: internal diameter is identical and central axis is overlapped fixing pipe group and adjustable pipe group, set
Loaded on the steel cylinder component outside the fixing pipe group and the adjustable pipe group, the fixing pipe group and the fixed company of the steel cylinder component
It connects, the fixing pipe group is provided with first annular tooth along its circumferential direction, and the adjustable pipe group is provided with matches with the first annular tooth
The second annular tooth for closing engagement, under the first annular tooth and the second annular tooth meshing state, the adjustable pipe group can edge
The axial movement of the steel cylinder component.
Preferably, the first annular tooth is along the circumferentially equally distributed rectangular teeth of the fixing pipe group.
Preferably, the fixing pipe group is provided with mounting flange, and the adjustable pipe group rotation is provided with loose flange, described
Mounting flange is connected with the loose flange by screw rod, and the both ends of the screw rod are provided with for avoiding the first annular tooth
The first locking nut being detached from second annular tooth.
Preferably, the steel cylinder component is provided with steel cylinder flange, the steel cylinder flange and the mounting flange described in
Screw rod connects, and the second locking nut for fixing the steel cylinder flange Yu the mounting flange is provided on the screw rod.
Preferably, it is provided between the fixing pipe group and the adjustable pipe group for first annular tooth described in axial pretightening
With the elastomeric element of second annular tooth.
Preferably, the elastomeric element be pressure spring, and the pressure spring be set to the screw rod peripheral part or the fixation
The peripheral part of adjustable pipe group described in Guan Zuhe.
Preferably, the peripheral part of the fixing pipe group is provided with the first groove for placing sealing ring and/or described solid
The peripheral part for determining pipe group is provided with the second groove for placing dustband.
Preferably, the peripheral part of the adjustable pipe group is provided with the third groove for placing sealing ring and/or the work
The peripheral part of dynamic pipe group is provided with the 4th groove for placing dustband.
Preferably, one of both described first annular tooth and second annular tooth are provided with for making described first
Circumferentially positioned locating slot when annular tooth and the second annular tooth fit engagement, another one is provided with to be cooperated with the locating slot
Protrusion.
A kind of Pneumatic pipe transmission system, including Pneumatic pipe and pipe line expansion joint, the pipe line expansion joint
For pipe line expansion joint described in any of the above embodiments.
Pipe line expansion joint provided by the utility model, comprising: the identical fixing pipe group of internal diameter and adjustable pipe group, suit
Steel cylinder component outside fixing pipe group and adjustable pipe group, and the central axis of fixing pipe group and adjustable pipe group is overlapped, fixing pipe
Group is fixedly connected with steel cylinder component, and fixing pipe group is provided with first annular tooth along its circumferential direction, and adjustable pipe group is provided with and the first ring
Second annular tooth of shape tooth fit engagement, under first annular tooth and the second annular tooth meshing state, adjustable pipe group can be along steel cylinder
The axial movement of component.
During use, when occurring axial flexible due to the variation of external temperature when steel cylinder component, due to steel
Cartridge module is fixedly connected with fixing pipe group, therefore the deformation quantity of steel cylinder component can be such that fixing pipe group moves axially；And because
Fixing pipe group and adjustable pipe group are by first annular tooth and the second annular tooth fit engagement, when axial stretching occurs for steel cylinder component,
It can make adjustable pipe group relative fixing tube group that axial displacement occur, make the axial direction of first annular tooth and the second annular tooth fit engagement
Depth changes.
Since fixing pipe group is identical as the internal diameter of adjustable pipe group, and fixing pipe group is overlapped with adjustable pipe group central axis, because
This, during first annular tooth and the second annular tooth fit engagement, the interior smooth of pipe line expansion joint, without step,
Pneumatic transmission bottle not will cause scratch or card bottle during transmitting, to improve efficiency of transmission.
In addition, size of the first annular tooth with the second annular tooth along steel cylinder component axial direction can be set according to actual needs
It sets, so as to so that adjustable pipe group relative fixing tube group is unrestricted along the flexible stroke of steel cylinder component axial direction.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structural schematic diagram of pipe line expansion joint provided by the utility model；
Fig. 2 is the diagrammatic cross-section of pipe line expansion joint；
Fig. 3 is the schematic diagram that adjustable pipe group and fixing pipe group cooperate meshing state；
Fig. 4 is the structural schematic diagram of steel cylinder component；
Fig. 5 is the structural schematic diagram of fixing pipe group；
Fig. 6 is the structural schematic diagram of adjustable pipe group；
Fig. 7 is the structural schematic diagram of baffle in adjustable pipe group；
Fig. 8 is the structural schematic diagram of the specific embodiment two of pipe line expansion joint provided by the utility model；
Fig. 9 is the diagrammatic cross-section of pipe line expansion joint shown in Fig. 8.
In Fig. 1-9:
1 it is steel cylinder component, 11 be steel cylinder flange, 12 be steel cylinder, 2 be fixing pipe group, 21 be mounting flange, 22 is fixed
Pipe, 23 be the first groove, 24 be first annular tooth, 25 be the second groove, 3 be adjustable pipe group, 31 be loose flange, 32 be gear
Plate, 33 be adjustable pipe, 34 be the second annular tooth, 35 be third groove, 36 be the 4th groove, 4 be screw rod, 5 be pressure spring, 6 be
One locking nut, 7 be sealing ring, 8 be dustband.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The core of the utility model is to provide a kind of pipe line expansion joint, can make pipeline expansion joint interior smooth,
Without step, the scratch of pneumatic transmission bottle and card bottle phenomenon are avoided.It includes above-mentioned that another core of the utility model, which is to provide a kind of,
The Pneumatic pipe transmission system of pipe line expansion joint.
Fig. 1-9 is please referred to, Fig. 1 is the structural schematic diagram of pipe line expansion joint provided by the utility model；Fig. 2 is pipe
The diagrammatic cross-section of road expansion joint apparatus；Fig. 3 is the schematic diagram that adjustable pipe group and fixing pipe group cooperate meshing state；Fig. 4 is steel
The structural schematic diagram of cartridge module；Fig. 5 is the structural schematic diagram of fixing pipe group；Fig. 6 is the structural schematic diagram of adjustable pipe group；Fig. 7 is
The structural schematic diagram of baffle in adjustable pipe group；Fig. 8 is the specific embodiment of pipe line expansion joint provided by the utility model
Two structural schematic diagram；Fig. 9 is the diagrammatic cross-section of pipe line expansion joint shown in Fig. 8.
Pipe line expansion joint provided by the utility model includes the fixing pipe group 2 that internal diameter is identical and central axis is overlapped
It is fixedly connected on adjustable pipe group 3 and the steel cylinder component 1 being set in outside fixing pipe group 2 and adjustable pipe group 3, fixing pipe group 2
Steel cylinder component 1, fixing pipe group 2 are provided with first annular tooth 24 along its circumferential direction, and adjustable pipe group 3 is provided with matches with first annular tooth 24
The second annular tooth 34 of engagement is closed, under 34 meshing state of first annular tooth 24 and the second annular tooth, adjustable pipe group 3 can be along steel cylinder
Component 1 is moved axially with respect to fixing pipe group 2.
It needs to be illustrated, the shape of first annular tooth 24 can be zigzag, be also possible to waveform or trapezoidal
Etc. other shapes, only need to guarantee cooperate between first annular tooth 24 and the second annular tooth 34 and engage, and can be along steel
The axial movement of cartridge module 1；Referring herein to fit engagement refer specifically to first annular tooth 24 and the second annular tooth 34 it is circumferential can
With intermeshing, and can be along the axial movement of steel cylinder component 1 under meshing state；First annular tooth 24 is nibbled with the second annular tooth 34
Stroke, first annular tooth 24 and the second annular tooth of the distance and Pneumatic pipe that are moved axially under conjunction state along steel cylinder component 1
34 is related along the axial depth of steel cylinder component 1, therefore the specific size of first annular tooth 24 and the second annular tooth 34 needs basis
Actual conditions are determined；In addition the quantity of first annular tooth 24 can be 2,3, be also possible to it is multiple, with specific reference to reality
Border situation determines.
During use, when ambient temperature changes, therefore steel cylinder component 1 can generate axial extension or receipts
Contracting, since steel cylinder component 1 is fixedly connected on fixing pipe group 2, fixing pipe group 2 can generate axis with the deformation of steel cylinder component 1
To movement；Again because fixing pipe group 2 and adjustable pipe group 3 pass through 34 fit engagement of first annular tooth 24 and the second annular tooth, steel cylinder
When axial stretching occurs for component 1, can make 3 relative fixing tube group 2 of adjustable pipe group that axial displacement occur, make first annular tooth 24 with
The axial depth of fit engagement changes between second annular tooth 34.
Since fixing pipe group 2 is identical as the internal diameter of adjustable pipe group 3, and the central axis weight of fixing pipe group 2 and adjustable pipe group 3
It closes, therefore, during 34 fit engagement of first annular tooth 24 and the second annular tooth, the interior smooth of pipe line expansion joint,
There is no steps, will not cause scratch or card bottle, to the pneumatic transmission bottle in transmit process so as to effectively improve efficiency of transmission.
In addition, first annular tooth 24 and the second annular tooth 34 can be according to actual needs along the axial size of steel cylinder component 1
It is configured, such as: it, can be by first annular tooth 24 when Pneumatic pipe is influenced by external condition, and axial deformation amount is 80mm
90mm is designed as along the axial dimension of steel cylinder component 1 with the second annular tooth 34；When Pneumatic pipe is influenced by external condition, axial shape
When variable is 120mm, first annular tooth 24 can be designed as with the second annular tooth 34 along the axial dimension of steel cylinder component 1
140mm；So as to so that 3 relative fixing tube group 2 of adjustable pipe group is unrestricted along the axial flexible stroke of steel cylinder component 1.
Preferably, fixing pipe group 2 is identical as the outer diameter of adjustable pipe group 3.
Preferably, first annular tooth 24 is uniformly distributed along the circumferential direction of fixing pipe group 2.
In order to facilitate the processing of fixing pipe group 2 and adjustable pipe group 3, first annular tooth 24 can be made along fixing pipe group 2 weeks
To equally distributed rectangular teeth, the quantity of rectangular teeth can be 2,3, be also possible to multiple；It is specific to need according to practical feelings
Condition determines.
Preferably, the minimum facewidth of first annular tooth 24 is less than the width of pneumatic transmission bottle, and pneumatic transmission bottle is avoided to transmit
It is leaked out in journey.
On the basis of the above embodiments, in order to avoid first annular tooth 24 and the second annular tooth 34 are detached from, can make solid
Determining pipe group 2 includes mounting flange 21 and fixing pipe 22, and mounting flange 21 is fixedly installed, and making adjustable pipe group 3 includes adjustable pipe 33
With loose flange 31, and the rotation setting of loose flange 31, and mounting flange 21 and loose flange 31 are connected by screw rod 4, screw rod 4
Both ends be provided with the first locking nut 6 for avoiding first annular tooth 24 and the second annular tooth 34 from being detached from.
At least two through-holes can be uniformly arranged along same circular arc on mounting flange 21, while in pair of loose flange 31
Position is answered equally to be uniformly arranged multiple through-holes, it, can be by rotating loose flange 31, to through-hole during screw rod 4 is installed
Position is adjusted；Preferably, one baffle 32 can be respectively set along the axial two sides of steel cylinder component 1 in loose flange 31.
Fixing pipe group 2 is fixedly connected with steel cylinder component 1 for convenience, can make steel cylinder component 1 includes steel cylinder 12 and steel
Drum flange 11 keeps the through-hole on steel cylinder flange 11 corresponding with the through-hole of mounting flange 21, then passes through screw rod 4 for mounting flange
21 connect with steel cylinder flange 11, and on screw rod 4 be arranged for steel cylinder flange 11 to be fixedly connected with mounting flange 21 second
Locking nut.
On the basis of the above embodiments, axial pre- in order to can be realized pipe line expansion joint during installation
Tightly, can be arranged between fixing pipe group 2 and adjustable pipe group 3 for the first annular tooth 24 of axial pretightening and the second annular tooth 34
Elastomeric element avoids fixing pipe group 2 and adjustable pipe group 3 from loosely placing.
Elastomeric element can be pressure spring 5, be also possible to the structures such as tension spring or cluster spring, only need that first annular tooth can be made
24 and second annular tooth 34 realize pre-tighten.
Preferably, elastomeric element can be made to be set as pressure spring 5, and pressure spring 5 is set to the peripheral part or fixing pipe group of screw rod 4
2 and adjustable pipe group 3 peripheral part.
Preferably, one end of 5 length direction of pressure spring is bonded with the side of loose flange 31, the other end and steel cylinder flange 11
Side fitting, other design parameters such as coefficient of elasticity of pressure spring 5 need determines according to actual conditions.
On the basis of the above embodiments, it is contemplated that pipe line expansion joint is frequently disposed in outdoor, in order to can
Meet the needs of sealing performances such as waterproof and dustproof, can the peripheral part of fixing pipe group 2 be arranged for placing sealing ring 7 the
One groove 23, and/or the second groove 25 for placing dustband 8 is set in the peripheral part of fixing pipe group 2.
Of course, it is possible to which the third groove 35 for placing sealing ring 7 is arranged in the peripheral part in adjustable pipe group 3, and/or in work
The 4th groove 36 for placing dustband 8 is arranged in the peripheral part of dynamic pipe group 3.
Need to be illustrated, the first groove 23, the second groove 25, third groove 35, the 4th groove 36 quantity can
To be 1,2,3, it is also possible to multiple, is determined with specific reference to actual conditions.
On the basis of the above embodiments, in order to enable first annular tooth 24 and the second annular tooth 34 in fit engagement
Realize it is circumferentially positioned, can in one of both first annular tooth 24 and the second annular tooth 34 setting it is first annular for making
Circumferentially positioned locating slot when tooth 24 and the second 34 fit engagement of annular tooth, setting is convex for cooperating with locating slot in another one
Portion out.
It needing to be illustrated, locating slot can be located at the left and right side of first annular tooth 24 or the second annular tooth 34,
The lower arcuate end face of first annular tooth 24 or the second annular tooth 34 can also be located at, determined with specific reference to actual conditions.
In addition to above-mentioned pipe line expansion joint, it includes that pipeline disclosed in above-described embodiment is stretched that the utility model, which also provides a kind of,
The Pneumatic pipe transmission system of casing coupling device, the Pneumatic pipe transmission system include Pneumatic pipe and pipe line expansion joint, master
It is used to transmit pneumatic transmission bottle by positive and negative air pressure, the structure of other each sections of Pneumatic pipe transmission system please refers to existing
There is technology, repeats no more herein.
In addition, it is necessary to be further illustrated, the pipe line expansion joint mentioned in the utility model can also be answered
For the pipeline transmission field of other oil transportations, gas transmission, the pipe line expansion joint mentioned in the utility model is in other fields
Using being also within the protection scope of the utility model.
The first locking nut 6, the second locking nut, the first groove 23, the second groove 25, mentioned in the utility model
First, second, third and fourth in three grooves 35, the 4th groove 36, first annular tooth 24 and the second annular tooth 34 is only
Table illustrates the difference of position, and there is no points of sequencing.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.Institute provided by the utility model
There is any combination mode of embodiment in the protection scope of this utility model, this will not be repeated here.
Above to pipe line expansion joint provided by the utility model and with the pneumatic tube of the pipe line expansion joint
Pipe transmission system is described in detail.Specific case used herein carries out the principles of the present invention and embodiment
It illustrates, the method and its core concept of the above embodiments are only used to help understand the utility model.It should be pointed out that
It for those skilled in the art, without departing from the principle of this utility model, can also be to this reality
Some improvement and modification can also be carried out with novel, and modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (10)
1. a kind of pipe line expansion joint characterized by comprising the fixing pipe group (2) that internal diameter is identical and central axis is overlapped
It is described solid with adjustable pipe group (3), the steel cylinder component (1) being set in outside the fixing pipe group (2) and the adjustable pipe group (3)
Determine pipe group (2) to be fixedly connected with the steel cylinder component (1), the fixing pipe group (2) is provided with first annular tooth along its circumferential direction
(24), the adjustable pipe group (3) is provided with the second annular tooth (34) with first annular tooth (24) fit engagement, and described
Under one annular tooth (24) and second annular tooth (34) meshing state, the adjustable pipe group (3) can be along the steel cylinder component (1)
Axial movement.
2. pipe line expansion joint according to claim 1, which is characterized in that the first annular tooth (24) is along described
The circumferential equally distributed rectangular teeth of fixing pipe group (2).
3. pipe line expansion joint according to claim 2, which is characterized in that the fixing pipe group (2) is provided with fixation
Flange (21), adjustable pipe group (3) rotation are provided with loose flange (31), the mounting flange (21) and the loose flange
(31) it is connected by screw rod (4), the both ends of the screw rod (4) are provided with for avoiding the first annular tooth (24) and described the
The first locking nut (6) that second ring tooth (34) is detached from.
4. pipe line expansion joint according to claim 3, which is characterized in that the steel cylinder component (1) is provided with steel cylinder
Flange (11), the steel cylinder flange (11) is connect with the mounting flange (21) by the screw rod (4), on the screw rod (4)
It is provided with the second locking nut for fixing the steel cylinder flange (11) and the mounting flange (21).
5. pipe line expansion joint according to claim 3 or 4, which is characterized in that the fixing pipe group (2) and the work
The elastic portion for first annular tooth (24) described in axial pretightening and second annular tooth (34) is provided between dynamic pipe group (3)
Part.
6. pipe line expansion joint according to claim 5, which is characterized in that the elastomeric element is pressure spring (5), and institute
It states pressure spring (5) and is set to the peripheral part of the screw rod (4) or the peripheral part of the fixing pipe group (2) and the adjustable pipe group (3).
7. pipe line expansion joint according to claim 6, which is characterized in that the peripheral part of the fixing pipe group (2) is set
The peripheral part for being equipped with the first groove (23) and/or the fixing pipe group (2) for placing sealing ring (7) is provided with for putting
Set the second groove (25) of dustband (8).
8. pipe line expansion joint according to claim 7, which is characterized in that the peripheral part of the adjustable pipe group (3) is set
The peripheral part for being equipped with third groove (35) and/or the adjustable pipe group (3) for placing sealing ring (7) is provided with for putting
Set the 4th groove (36) of dustband (8).
9. pipe line expansion joint according to claim 8, which is characterized in that the first annular tooth (24) and described the
One of both second ring teeth (34) are provided with for matching the first annular tooth (24) with second annular tooth (34)
Locating slot circumferentially positioned when engagement is closed, another one is provided with the protrusion with locating slot cooperation.
10. a kind of Pneumatic pipe transmission system, which is characterized in that including Pneumatic pipe and pipe line expansion joint, the pipeline
Expansion joint apparatus is the described in any item pipe line expansion joints of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822099975.0U CN209455669U (en) | 2018-12-13 | 2018-12-13 | A kind of pipe line expansion joint and the Pneumatic pipe transmission system with the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822099975.0U CN209455669U (en) | 2018-12-13 | 2018-12-13 | A kind of pipe line expansion joint and the Pneumatic pipe transmission system with the device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209455669U true CN209455669U (en) | 2019-10-01 |
Family
ID=68039084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822099975.0U Withdrawn - After Issue CN209455669U (en) | 2018-12-13 | 2018-12-13 | A kind of pipe line expansion joint and the Pneumatic pipe transmission system with the device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209455669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109455524A (en) * | 2018-12-13 | 2019-03-12 | 长沙开元仪器有限公司 | A kind of pipe line expansion joint and the Pneumatic pipe transmission system with the device |
-
2018
- 2018-12-13 CN CN201822099975.0U patent/CN209455669U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109455524A (en) * | 2018-12-13 | 2019-03-12 | 长沙开元仪器有限公司 | A kind of pipe line expansion joint and the Pneumatic pipe transmission system with the device |
| CN109455524B (en) * | 2018-12-13 | 2024-05-24 | 长沙开元仪器有限公司 | Pipeline expansion joint device and pneumatic pipeline transmission system with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191001 Effective date of abandoning: 20240524 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191001 Effective date of abandoning: 20240524 |