CN105846391A - Inflatable cable plugging bag - Google Patents
Inflatable cable plugging bag Download PDFInfo
- Publication number
- CN105846391A CN105846391A CN201610290668.3A CN201610290668A CN105846391A CN 105846391 A CN105846391 A CN 105846391A CN 201610290668 A CN201610290668 A CN 201610290668A CN 105846391 A CN105846391 A CN 105846391A
- Authority
- CN
- China
- Prior art keywords
- bag
- gas port
- sealant layer
- gas
- cable plugging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000565 sealant Substances 0.000 claims abstract description 58
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 230000002265 prevention Effects 0.000 claims description 17
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 13
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/32—Cable inlets
Landscapes
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Buffer Packaging (AREA)
Abstract
The invention relates to an inflatable cable plugging bag comprising a strip-shaped bag body which has a sealed cavity. One side of the bag body is provided with a gas port. A sealant layer which covers the whole gas port is arranged in the bag body. The sealant layer is fixed at the internal surface of one side of the bag body on which the gas port is arranged, and a gas passage communicating the gas port and the internal part of the bag body is formed between the sealant layer and the internal surface of one side of the bag body on which the gas port is arranged when gas is injected into the gas port. The sealant layer is not punctured when gas is inflated into the bag body so that the great sealing performance of the sealant layer can be guaranteed when gas inflation is stopped, gas is not liable to leak and thus the service life can be greatly prolonged.
Description
Technical field
The present invention relates to the improvement of a kind of inflatable cable plugging bag structure.
Background technology
Now electric power, there is substantial amounts of cable in the field such as communication, connection in ground lower groove, groove every
One segment distance just has a fire wall, and Main Function is fire prevention, and the toy being also prevented from mouse class stings cable,
Also the water in isolation wire casing；At cable through the via of fire wall, it is usually with fire prevention clay, Waterproof gum
Mud is soft, easily blocks, but fire prevention clay is dry rear hardening, easily ftractures, also cannot prevent workmen
The closure being responsible for puts in place, the easy hollow in the inside.
Market also has a kind of inflatable aluminum foil bag to block, and mainly by the fire performance of aluminium film, then fills
Reach closure after gas, but have the disadvantage in that
1. the closure occurred on the market now seals bag and is inflated sealing not by valve is exactly straight
Connect use sealant layer to be inflated sealing, the gas leakage sealed in bag is not played well blocking work
With, directly use the effect of valve just as automobile tire, in sealing bag after a while, ground gas is just
It is that oneself is run away, and using sealant layer is to puncture whole colloid toward sealing bag when of directly blocking inflation
Interior inflation, so the gas leakage sealing in bag can not well be prevented.
2. plugging bag is all the valve of the general glue utilized, and is heated and directly will soften inefficacy, loses envelope
The effect of stifled protection.
3. mouse class toy is liked utilizing hard thing to grind one's teeth in sleep, and the aluminium film of plugging bag has a some strength, but always
Mouse can break by the teeth, does not really have the effect that anti-toy is baited.
4. aluminium film heatproof is at about 260 degree, is really not easy burning, but after cable is on fire, can be directly
Heating air bag, air bag is heated to a certain degree can expand blast, loses the effect of closure.
Summary of the invention
The technical problem to be solved is difficult to leakage, service life after being to provide a kind of insufflation gas
Long inflatable cable plugging bag.
The technical scheme is that a kind of inflatable cable plugging bag, bag
Include and there is the strip bag sealing inner chamber, the side of bag is provided with gas port, is provided with in bag
The sealant layer all covered by gas port, described sealant layer is fixed on table in the bag side at gas port place
Face, and when injecting gas to gas port, formed between sealant layer and bag side, gas port place inner surface
Connection gas port and the air flue within bag.
As preferably, in described bag, it is additionally provided with the spacer that position is corresponding with gas port, described spacer
Between gas port and sealant layer.
As preferably, described spacer is bonded in sealant layer, and its edge is positioned at the edge of sealant layer
Portion.
As preferably, being additionally provided with fixing film in described bag, described sealant layer is by fixing film and bag
Fixing connection between body.
As preferably, the edge of described fixing film is fixed with bag inwall, and described sealant layer is positioned at fixing
Between film and bag inwall, and make to be formed between sealant layer and bag inwall gas when injecting gas to gas port
During road, between the edge of fixing film and bag inwall, at least leave the gas in an air supply duct enter bag
The outlet in internal portion.
As preferably, at described gas port, it is provided with valve cock.
As preferably, described valve cock is metal valve cock, solid at the outer surface correspondence gas port of described bag
Surely having heat insulating mattress, valve cock is arranged on heat insulating mattress, and connects gas port.
As preferably, when being additionally provided with cable is wrapped up at bag in the outside of bag, can be with bag
The anti-bite bar of fire prevention wound together, bag inflate after, between the anti-bite bar of fire prevention and the bag after winding
In the axial direction of winding, there is gap.
As preferably, the anti-bite bar of described fire prevention is two, and two long side edge of the most corresponding bag are arranged,
The prevent fires two ends of anti-bite bar are connected with bag.
As preferably, the inside that the anti-bite bar of described fire prevention is made up of hard material has winding of cavity
Body.
The invention has the beneficial effects as follows: when being inflated bag, gas enters from gas port, will be close to
Sealant layer at bag side, gas port place inner surface is washed open, now sealant layer and gas port place bag
Forming connection gas port and the air flue within bag between the inner surface of side, gas persistently can be filled with from air flue
Inside bag, after stopping inflation, sealant layer, under the pressure effect of bag internal gas, is fitted again
The bag inner surface at place, blocks gas port.Owing to when inflation, sealant layer will not be punctured,
When stopping inflation, it is ensured that the good seal performance of sealant layer, gas is made to be difficult to reveal, greatly
Extend service life.By adding valve cock at gas port, valve cock is used to hold one's breath and sealant layer
The secondary anti-gas-leak mode held one's breath of automatic bonding, bag can be effectively prevented and be similar to inflation tyre or gas
Circle has put for a long time the phenomenon of meeting automatic leakage air.Valve cock uses metal valve cock, is at high temperature unlikely to deform mistake
Effect, simultaneously by increasing heat insulating mattress, can effectively completely cut off metal valve cock and communicate the temperature to bag,
Bag is avoided to be heated.It addition, by adding the anti-bite bar of fire prevention outside bag, anti-bite bar of preventing fires is with bag
It is wound on together on cable, makes the bag two ends after winding separate with cable, prevent toy from directly baiting
Bag, it is ensured that the service life of bag.When the ignition of cable at bag two ends, anti-bite bar of preventing fires is permissible
Play the heating directly to bag of the isolation flame, it also avoid thus avoid bag to be directly exposed to flame etc.
In high temperature, it is to avoid pop, ineffective.Owing to anti-bite bar distance bag of preventing fires has certain distance, make heat
Amount will not be directly delivered to bag from anti-bite bar of preventing fires, and anti-bite bar of preventing fires itself includes air, equally
The effect reducing heat transmission can be played.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention；
Fig. 2 is the top view of the present invention；
Fig. 3 is the partial sectional view of the present invention；
Fig. 4 is the partial sectional view under the inflated condition of the present invention；
Fig. 5 is the structural representation of the bag parcel cable of the present invention；
In accompanying drawing, the list of parts representated by each label is as follows:
1, bag, 2, valve cock, 3, heat insulating mattress, 4, sealant layer, 5, fixing film, 6, isolation
Sheet, 7, air flue, 8, anti-bite bar of preventing fires, 9, cable.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining this
Invention, is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figures 1 to 4, a kind of inflatable cable plugging bag, including having the strip sealing inner chamber
Shape bag 1, is provided with gas port in the side of bag 1, is provided with and is all covered by gas port in bag 1
Sealant layer 4, described sealant layer 4 is fixed on the bag 1 side inner surface at gas port place, and works as
When gas port injects gas, formed between sealant layer 4 with bag 1 side, gas port place inner surface and connect
Gas port and the air flue 7 within bag 1.In order to ensure the formation of air flue 7, it is necessary to assure there is part
For the state that can separate between the edge of sealant layer 4 with bag 1, sealant layer 4 i.e. partly
Edge uniquely relies on self stickiness before use and is attached to bag 1 inner surface, when forming gas to bag 1 inflation
During road 7, this part edge of sealant layer 4 i.e. separates the outlet forming air flue 7 with bag 1 inner surface.
Being additionally provided with fixing film 5 in described bag 1, the edge of described fixing film 5 is solid with bag 1 inwall
Fixed, described sealant layer 4 is between fixing film 5 and bag 1 inwall, and described sealant layer 4 passes through
Fixing fixing between film 5 with bag 1 is connected.So sealant layer 4 has only to be pasted by the stickiness of self
On fixing film 5, the edge of described fixing film 5 formed fixing with bag 1, realize sealant layer
Interfixing between 4 and bag 1.Sealant layer 4 and bag 1 inwall is made when injecting gas to gas port
Between formed air flue 7 time, between the edge of fixing film and bag 1 inwall, at least leave an air supply duct
Gas in 7 enters the outlet within bag 1.The quantity of outlet can be arranged in one or more,
When one outlet is set, can outlet be arranged more relatively large, in order to gas can be full of quickly
Bag 1, in the present embodiment, fixing film 5 is set to rectangle, wherein three edges and the bag of rectangle
1 fixing connection, when air flue 7 is formed, forms the outlet of air flue 7 between another edge and bag 1.
When multiple outlet is set, then can be more relatively small along being uniformly configured in the circumference of fixing film 5
Outlet, multiple outlet air inlets simultaneously, it is also ensured that the fast aeration to bag 1.
Being additionally provided with the position spacer corresponding with gas port 6 in described bag 1, described spacer 6 is positioned at
Between gas port and sealant layer 4.The stickiness of sealant layer 4 self makes spacer 6 be bonded at sealant layer 4
On, the edge of described spacer 6 is positioned at inside the edge of sealant layer 4.Spacer 6 a side is set
Face can separate sealant layer 4 and gas port before inflation, it is to avoid sealant layer 4 produces adhesion with gas port,
Clogging gas port；On the other hand can play the effect of guiding inflation when, make air flue 7 more accelerate
The formation of speed.And the edge of spacer 6 is positioned at the inside of sealant layer 4, so after stopping inflation,
Ensure that air flue 7 outlet can be played by sealant layer 4 to effectively seal against.
Being provided with valve cock 2 at described gas port, after bag 1 is inflated, valve cock 2 is same with sealant layer 4
Time gas port formed seal, form double shielding, it is possible to accomplish that gas does not leaks, service life is more permanent,
Effect is more preferable.
Described valve cock 2 selects metal valve cock 2, and it has the advantages that at high temperature will not deform, and protects
Demonstrate,prove the sealing effectiveness to gas port.In order to avoid the temperature because of valve cock 2 raises, and high temperature is transmitted
To bag 1, being fixed with heat insulating mattress 3 at the outer surface correspondence gas port of described bag 1, valve cock 2 is pacified
It is contained on heat insulating mattress 3, and connects gas port.
It is additionally provided with in the outside of bag 1 when cable 9 is wrapped up by bag 1, can be with bag 1 one
Play the anti-bite bar of fire prevention 8 of winding.The anti-bite bar of described fire prevention 8 is two, two of the most corresponding bag 1
Long side edge is arranged, and prevents fires and has a certain distance between anti-bite bar 8 and bag 1, at anti-bite bar of preventing fires
The two ends of 8 are connected with bag 1.Before bag 1 is inflated, anti-bite bar 8 of preventing fires is along with bag 1 one roll set
It is wound on the periphery of cable 9, forms state as shown in Figure 5.Now, prevent fires anti-bite bar 8 and bag
Still there is between body 1 in the axial direction of winding certain gap, and after bag 1 is inflated, fire prevention
In the axial direction of winding, still there is gap between anti-bite bar 8 and bag 1.So when bag 1 one end or
During the ignition of cable at person two ends, anti-bite bar 8 of preventing fires can play the heating directly to bag 1 of the isolation flame,
It also avoid bag 1 to be directly exposed in the high temperature such as flame, it is to avoid pop, ineffective.Due to fire prevention
Anti-bite bar 8 has certain distance apart from bag 1, makes heat will not be directly delivered to bag from anti-bite bar 8 of preventing fires
Body 1, plays the effect reducing heat transmission.
What the inside that the anti-bite bar of described fire prevention 8 is made up of hard material had a cavity can coiling body.Such as,
As shown in Figures 1 and 2 prevent fires anti-bite bar 8 by a bonding jumper make identical with spring structure
Helical structure, or can also be that many above-mentioned helical structures form anti-bite bars 8 of preventing fires.Again or
Person's anti-bite bar 8 of preventing fires can be to be made up of one or more bellowss.Owing to the fire prevention of this structure is prevented
Sting bar 8 and itself there is cavity, can preferably play and reduce the effect that heat transmits to bag 1.
The operation principle of the present invention and using method: directly by valve cock 2 through gas port toward inside bag 1
Directly inflation, gas enters bag 1 impact isolating sheet 6, makes sealant layer 4 by continuous inflating pressure
And forming air flue 7 between bag 1 inner surface, after air flue 7 is full of, gas passes through going out of air flue 7 further
It is internal that mouth enters into whole bag 1, vertical after whole bag 1 gassy arrives predetermined sealed condition
I.e. stop inflating；In this time, bag 1 is internal not only can prevent gas from letting out by valve cock 2
Leakage, the sealant layer 4 that in bag 1, corresponding gas port is arranged is owing to having extensibility with stickiness, by inside
Gas pressure effect sealant layer 4 can carry out second protection, closure to gas port.
Due to the fact that bag 1 when inflation, sealant layer 4 and bag 1 inwall gassy, seal
Glue-line 4 separates with bag 1 inner wall section under gas pressure effect, forms air flue 7 and inflates bag 1；
When stopping inflation, 5 sealant layers 4 of fixing film retract and be again close to bag 1 inwall, it is ensured that
The good seal performance of sealant layer 4, owing to having the first time of valve cock 2 to close and airtight viscose glue
Closed for second time gas, in making bag 1, gas is difficult to reveal, and greatly extends service life.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the present invention
Spirit and principle within, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (10)
1. an inflatable cable plugging bag, including having the strip bag (1) sealing inner chamber,
The side of bag is provided with gas port, it is characterised in that is provided with in bag (1) and is all covered by gas port
The sealant layer (4) of lid, described sealant layer (4) is fixed in bag (1) side at gas port place
Surface, and when injecting gas to gas port, in sealant layer (4) and bag (1) side, gas port place
The air flue (7) that connection gas port is internal with bag (1) is formed between surface.
Inflatable cable plugging bag the most according to claim 1, it is characterised in that described bag
(1) being additionally provided with the position spacer corresponding with gas port (6) in, described spacer (6) is positioned at gas port
And between sealant layer (4).
Inflatable cable plugging bag the most according to claim 2, it is characterised in that described isolation
Sheet (6) is bonded in sealant layer (4), and its edge is positioned at inside the edge of sealant layer (4).
Inflatable cable plugging bag the most according to claim 3, it is characterised in that described bag
(1) being additionally provided with fixing film (5) in, described sealant layer (4) is by fixing film (5) and bag
(1) fixing connection between.
Inflatable cable plugging bag the most according to claim 4, it is characterised in that described fixing
The edge of film (5) is fixed with bag (1) inwall, and described sealant layer (4) is positioned at fixing film (5)
And between bag (1) inwall, and make sealant layer (4) and bag (1) when injecting gas to gas port
When forming air flue (7) between inwall, at least leave between the edge of fixing film and bag (1) inwall
Gas in one air supply duct (7) enters the outlet that bag (1) is internal.
6. according in claim 1 to 5 any one described inflatable cable plugging bag, its feature
It is, at described gas port, is provided with valve cock (2).
Inflatable cable plugging bag the most according to claim 6, it is characterised in that described valve
Mouth (2) is metal valve cock (2), is fixed with heat insulation at the outer surface correspondence gas port of described bag (1)
Pad (3), described valve cock (2) is arranged on heat insulating mattress (3), and connects gas port.
8. according in claim 1 to 5 any one described inflatable cable plugging bag, its feature
It is, is additionally provided with in the outside of bag (1) when cable (9) is wrapped up by bag (1),
The anti-bite bar of the fire prevention (8) that can wind with bag (1), after bag (1) is inflated, after winding
Prevent fires and in the axial direction of winding, there is gap between anti-bite bar (8) and bag (1).
Inflatable cable plugging bag the most according to claim 8, it is characterised in that described fire prevention
Anti-bite bar (8) is two, and two long side edge of the most corresponding bag (1) are arranged, anti-bite bar of preventing fires
(8) two ends are connected with bag (1).
Inflatable cable plugging bag the most according to claim 9, it is characterised in that described fire prevention
What the inside that anti-bite bar (8) is made up of hard material had a cavity can coiling body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290668.3A CN105846391B (en) | 2016-05-03 | 2016-05-03 | Inflatable cable plugging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610290668.3A CN105846391B (en) | 2016-05-03 | 2016-05-03 | Inflatable cable plugging bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105846391A true CN105846391A (en) | 2016-08-10 |
| CN105846391B CN105846391B (en) | 2018-11-30 |
Family
ID=56591135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610290668.3A Active CN105846391B (en) | 2016-05-03 | 2016-05-03 | Inflatable cable plugging bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105846391B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853702A (en) * | 2019-01-25 | 2019-06-07 | 仁诚建设有限公司 | Cast-in-place concrete cable conduit construction method |
| CN112332315A (en) * | 2020-11-25 | 2021-02-05 | 北京恒扉嘉泰建设工程有限公司 | Cable paying-off device and construction process thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4105625A1 (en) * | 1990-02-23 | 1991-08-29 | Raychem Ltd | Inflatable seal for use e.g. between cable and duct - consists of e.g. laminate of plastic films which is folded over, suitably bonded to form envelope |
| CN201643682U (en) * | 2009-09-11 | 2010-11-24 | 梁柳艳 | Inflatable sealing part |
| CN202888768U (en) * | 2012-09-25 | 2013-04-17 | 何伟林 | An inflating cable conduit sealing bag |
| CN202930889U (en) * | 2012-11-05 | 2013-05-08 | 何伟林 | Cable conduit sealing bag |
| CN104779572A (en) * | 2015-04-10 | 2015-07-15 | 浙江太湖远大新材料股份有限公司 | Inflatable sealing equipment for power pipeline as well as production method |
| CN204858498U (en) * | 2015-06-26 | 2015-12-09 | 国家电网公司 | Cable channel seals ware |
| CN204986038U (en) * | 2015-09-02 | 2016-01-20 | 陈海木 | Inflatable cable channel sealing device that can repeatedly use repeatedly |
-
2016
- 2016-05-03 CN CN201610290668.3A patent/CN105846391B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4105625A1 (en) * | 1990-02-23 | 1991-08-29 | Raychem Ltd | Inflatable seal for use e.g. between cable and duct - consists of e.g. laminate of plastic films which is folded over, suitably bonded to form envelope |
| CN201643682U (en) * | 2009-09-11 | 2010-11-24 | 梁柳艳 | Inflatable sealing part |
| CN202888768U (en) * | 2012-09-25 | 2013-04-17 | 何伟林 | An inflating cable conduit sealing bag |
| CN202930889U (en) * | 2012-11-05 | 2013-05-08 | 何伟林 | Cable conduit sealing bag |
| CN104779572A (en) * | 2015-04-10 | 2015-07-15 | 浙江太湖远大新材料股份有限公司 | Inflatable sealing equipment for power pipeline as well as production method |
| CN204858498U (en) * | 2015-06-26 | 2015-12-09 | 国家电网公司 | Cable channel seals ware |
| CN204986038U (en) * | 2015-09-02 | 2016-01-20 | 陈海木 | Inflatable cable channel sealing device that can repeatedly use repeatedly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853702A (en) * | 2019-01-25 | 2019-06-07 | 仁诚建设有限公司 | Cast-in-place concrete cable conduit construction method |
| CN112332315A (en) * | 2020-11-25 | 2021-02-05 | 北京恒扉嘉泰建设工程有限公司 | Cable paying-off device and construction process thereof |
| CN112332315B (en) * | 2020-11-25 | 2021-12-21 | 北京恒扉嘉泰建设工程有限公司 | Cable paying-off device and construction process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105846391B (en) | 2018-11-30 |
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Effective date of registration: 20190613 Address after: 510000 Room 1204, No. 152, Linzhong Road, Tianhe District, Guangzhou City, Guangdong Province (for office use only) (not for workshop use) Patentee after: Guangzhou City, China good sound computer technology Co. Ltd Address before: 510610 Room 1204, No. 125, Linzhong Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: Zhang Zujun |