CN207143903U - A kind of static sounding feeler lever - Google Patents
A kind of static sounding feeler lever Download PDFInfo
- Publication number
- CN207143903U CN207143903U CN201721082568.8U CN201721082568U CN207143903U CN 207143903 U CN207143903 U CN 207143903U CN 201721082568 U CN201721082568 U CN 201721082568U CN 207143903 U CN207143903 U CN 207143903U
- Authority
- CN
- China
- Prior art keywords
- feeler lever
- annulus
- head
- static sounding
- bar portion
- 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.)
- Expired - Fee Related
Links
- 230000003068 static effect Effects 0.000 title claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 3
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 229940092782 bentonite Drugs 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000004990 Smectic liquid crystal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229940080314 sodium bentonite Drugs 0.000 description 1
- 229910000280 sodium bentonite Inorganic materials 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of static sounding feeler lever, belong to geological prospecting equipment technical field, aim to provide a kind of with the static sounding feeler lever for being not easy to damage screw thread during feeler lever is drilled down into underground to increase the service life, its technical scheme is as follows, a kind of static sounding feeler lever, including feeler lever, connected between the feeler lever by connecting rod；The connecting rod includes the head of rectangular-shape and forms T-type structure with head bar portion connected vertically, the head with bar portion, thread is provided with the outside of the bar portion；The circular hole for being through to apical head is provided with the bar portion；One end of the feeler lever is provided with the stopper slot with head fits, and the notch of the stopper slot is arranged with the width that the distance between flange, the flange is less than head, and the thickness on the head is less than spacing groove deep；The other end of the feeler lever is provided with the positioning threads groove screwed in for bar portion.
Description
Technical field
Geological prospecting equipment is the utility model is related to, more particularly to a kind of static sounding feeler lever.
Background technology
Static penetrometer uses, it is necessary to which feeler lever is extend into underground at work, because the hole of exploration is deeper, it requires
Feeler lever spreading is used, the static sounding feeler lever used at present, be that two feeler levers are connected to one using the joint specially connected
Rise.
Notification number is that CN202039338U Chinese patent discloses a kind of Integral-type non-joint static penetration-testing probe rod, and it is wrapped
A feeler lever main body is included, one end of feeler lever main body is provided with external screw thread, internal thread, outer spiral shell are provided with the inside of the other end of feeler lever main body
Line, feeler lever main body, internal thread are monolithic construction, and the centre of feeler lever main body is through hole；The external screw thread is cone tooth with internal thread
Screw thread or square thread, the external screw thread on a feeler lever can be by boring pitch thread or square tooth spiral shell with the internal thread on another feeler lever
Line is worked in coordination connection；The feeler lever main body is provided with flat close to externally threaded both sides.
This Integral-type non-joint static penetration-testing probe rod realizes mutual consolidate using cone pitch thread or square thread
It is fixed, it need to first be tightened at screw thread, prevent feeler lever joint at injection underground from infiltration phenomenon be present.After starting injection, feeler lever connects
End face and the common stress in threaded connection place；With the increase of feeler lever depth of penetration, the counter-force received at probing rod joint is increasingly
Greatly, due to being in tight condition between screw thread, threaded connection place is may result in during this and is deformed destruction, Jin Erying
Normally it is threadedly coupled between loud feeler lever next time, influences its service life.
Utility model content
The purpose of this utility model is to provide a kind of static sounding feeler lever, has and is drilled down into the process to underground in feeler lever
In be not easy to damage screw thread the effect to increase the service life.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of static sounding is visited
Bar, including feeler lever, connected by connecting rod between the feeler lever；The connecting rod includes the head of rectangular-shape and hung down with head
The direct-connected bar portion connect, the head form T-type structure with bar portion, thread are provided with the outside of the bar portion；It is provided with and passes through in the bar portion
Wear to the circular hole of apical head；One end of the feeler lever is provided with the stopper slot with head fits, and the notch of the stopper slot is symmetrical
Provided with flange, the distance between described flange is less than the width on head, and the thickness on the head is less than spacing groove deep；The spy
The other end of bar is provided with the positioning threads groove screwed in for bar portion.
By using above-mentioned technical proposal, one end of connecting rod is fixed by head and the flange on stopper slot, separately
One end is threadedly coupled realization two feeler levers of connection by positioning threads groove with bar portion, is inserted downwardly into the feeler lever effect of being stressed
During underground, direct power transmission between feeler lever and feeler lever, without carrying out power transmission by connecting rod, so that thread and positioning threads
Screw thread in groove is not easy to be destroyed, and increases the service life
Further, the distance between described flange can be put into stopper slot for head inclination, and can vertically be ajusted
Connecting rod.
By using above-mentioned technical proposal, it is ensured that connecting rod swimmingly can be embedded in stopper slot, vertically ajust connection
Bar rear rod portion also can be screwed in more easily in positioning threads groove.
Further, spring is provided between the head of the connecting rod and spacing trench bottom.
By using above-mentioned technical proposal, when feeler lever is hammered by static cone penetration equipment, spring can relax connecting rod with
The impulsive force of stopper slot bottom land.When connecting rod is compressed to spring, spring has an opposite effect power to connecting rod, can
Moved down with propping up connecting rod head.
Further, the bar portion outer sheath is provided with antiseepage sleeve, and the antiseepage sleeve clamping is between two feeler levers；Institute
State and annulus neck one is offered on the end face that antiseepage sleeve contacts with two feeler levers, the close of adaptation is provided with the annulus neck one
Seal.
By using above-mentioned technical proposal, antiseepage sleeve can avoid two feeler lever end faces from directly contacting, and can protect feeler lever,
Sealing ring can also make the intermolecular forces of feeler lever and antiseepage sleeve more uniform simultaneously, mitigate the abrasion between contact face.
Further, the both ends of the feeler lever offer the annulus neck two with one identical size of annulus neck；It is described
One end insertion annulus neck two of sealing ring, the other end is embedded in annulus neck one；The thickness of the sealing ring is equal to annulus card
The groove depth sum of groove one and annulus neck two.
By using above-mentioned technical proposal, between sealing ring insertion annulus neck one and annulus neck two, can increase anti-
The sealing between sleeve and two feeler levers is oozed, so that underground water or mud are not easily accessible the connection of antiseepage sleeve and feeler lever
It is internal.
Further, the antiseepage sleeve outer diameter is identical with feeler lever external diameter.
By using above-mentioned technical proposal, antiseepage sleeve can be made more accurate, quick when being enclosed on feeler lever.
Further, the feeler lever offers annulus filling slot one on the end face of stopper slot side；The annulus is filled out
The diameter for filling groove one is more than the diameter of annulus neck one；The antiseepage sleeve is set with another feeler lever contact face for needing to dock
Have and the identical annulus filling slot two of annulus filling slot one；The annulus filling slot one in annulus filling slot two with being equipped with chance water
Expansion piece.
By using above-mentioned technical proposal, when underground water or mud are entered inside the connection of antiseepage sleeve and feeler lever
Water-swellable part can expand, and can further increase the sealing between antiseepage sleeve and two feeler levers.
Further, the water-swellable part is made up of high Na-bentonite soil material.
By using above-mentioned technical proposal, high sodium bentonite has extra-heavy expansion character, expands and is formed after being contacted with water
One layer of seamless high density cream smectic body, good seal performance.
Further, the antiseepage sleeve is located at the direction axially outside of the one end of annulus filling slot two and is extended with positioning
Ring, the detent coordinated with locating ring is offered on the feeler lever.
By using above-mentioned technical proposal, antiseepage sleeve can be made more accurate, quick when being enclosed on feeler lever, made downwards
Power can keep as much as possible on the same line.
Further, sealing ring is provided between the locating ring and detent.
By using above-mentioned technical proposal, the sealing connected between antiseepage sleeve and feeler lever can be increased, while also may be used
To buffer the active force between antiseepage sleeve and feeler lever, mitigate the abrasion of contact surface.
In summary, the utility model has the advantages that：
1. being connected between feeler lever by connecting rod, direct power transmission between feeler lever and feeler lever is avoided, and when the bar of connecting rod
When portion's stress effect moves down, head first can move in stopper slot, so that the threaded connection place of connecting rod and feeler lever
It is not susceptible to wear, so as to extend the service life of feeler lever；
2. being arranged with sleeve on the outside of connecting rod bar portion, the pressure that feeler lever is born downwards, and annulus filling slot can be shared
The one water-swellable part with loading in annulus filling slot two runs into underground water or mud expands, and forms sealing；
3. the sealing ring being provided between annulus neck one and annulus neck two can make to act between feeler lever and antiseepage sleeve
Power is more uniform, mitigates the abrasion between contact face, while can further increase the sealing of contact face；
4. the cooperation of detent and locating ring can make antiseepage sleeve more accurate, quick when being enclosed on feeler lever, make
Downward power can be kept on the same line as much as possible.
Brief description of the drawings
Fig. 1 is to be used to embody connection relationship diagram between static sounding feeler lever and connecting rod in the present embodiment；
Fig. 2 is A portions enlarged drawing in Fig. 1；
Fig. 3 is to be used to embody static sounding feeler lever structural representation in the present embodiment；
Fig. 4 is to be used to embody antiseepage tube-in-tube structure schematic diagram in the present embodiment.
In figure, 1, feeler lever；11st, stopper slot；111st, flange；12nd, positioning threads groove；13rd, detent；14th, annulus neck
Two；15th, annulus filling slot one；2nd, connecting rod；21st, head；22nd, bar portion；221st, thread；222nd, circular hole；3rd, spring；4th, antiseepage set
Cylinder；41st, annulus neck one；411st, sealing ring；42nd, annulus filling slot two；421st, water-swellable part；43rd, locating ring；431st, seal
Ring.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Wherein identical parts are presented with like reference characters.It should be noted that the word used below in description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in accompanying drawing, word " bottom surface " and " top surface ", " interior " and
" outer " is referred respectively to towards or away from the direction of particular elements geometric center.
A kind of static sounding feeler lever, as shown in figure 1, including feeler lever 1, connecting rod 2.Feeler lever 1 passes through with another feeler lever 1 to be connected
Bar 2 connects.
As shown in figs. 1 and 3, connecting rod 2 is T-type structure, it include head 21 and with the center of head 21 bar connected vertically
Portion 22, head 21 are cuboid, and bar portion 22 is cylinder, and the outside of bar portion 22 is provided with thread 221, is provided with bar portion 22 and is through to head
The circular hole 222 on 21 tops, so that probe can pass through connecting rod 2；It is provided with what is be adapted to head 21 inside one end of feeler lever 1
Stopper slot 11, the notch of stopper slot 11 are arranged with the width that the distance between flange 111, flange 111 is less than head 21；Feeler lever
1 other end is provided with the positioning threads groove 12 screwed in for bar portion 22, when bar portion 22 screws in positioning threads groove 12, head 21 and limit
Do not rotated between the groove 11 of position.The distance between flange 111 can make after the slant setting of 2 head of connecting rod 21 along flange
111 enter in stopper slot 11, and can vertically ajust connecting rod 2.
As shown in figs. 1 and 4, spring 3 is provided between head 21 and the bottom of stopper slot 11, bar portion 22 is cased with antiseepage sleeve 4, prevents
Ooze sleeve 4 to be clamped between two feeler levers 1, the external diameter of antiseepage sleeve 4 is consistent with the external diameter of feeler lever 1.Antiseepage sleeve 4 with two feeler levers
Annulus neck 1 is offered on the end face of 1 contact, the sealing ring 411 of adaptation is provided with annulus neck 1.Feeler lever 1 is with preventing
Ooze and annulus neck 2 14 with one 41 identical size of annulus neck offered on the end face of the contact of sleeve 4, sealing ring 411 it is upper
The thickness of portion's insertion annulus neck 2 14 and sealing ring 411 be equal to groove depth between annulus neck 1 and annulus neck 2 14 it
With.
As shown in figs. 1 and 3, feeler lever 1 contacts with antiseepage sleeve 4 and annulus filling is offered on the end face of stopper slot 11
Groove 1, the diameter of annulus filling slot 1 are more than the diameter of annulus neck 1.Antiseepage sleeve 4 and another spy for needing to dock
The contact face of bar 1 be provided with the identical annulus filling slot 2 42 of annulus filling slot 1, annulus filling slot 1 is filled out with annulus
Fill in groove 2 42 and be equipped with water-swellable part 421, the water-swellable part 421 is made up of high Na-bentonite soil material.
As illustrated in fig. 1 and 2, antiseepage sleeve 4, which is located on the outside of the one end of annulus filling slot 2 42, has upwardly extended locating ring 43,
The detent 13 coordinated with locating ring 43 is offered on feeler lever 1, sealing ring is provided between locating ring 43 and detent 13
431。
Specific implementation process：When static penetrometer injection soil layer that feeler lever 1 is vertical, now because the length of feeler lever 1 is inadequate,
Need to connect other feeler levers 1 with it.First spring 3 is positioned in the stopper slot 11 of feeler lever 1, the inclination of head 21 is put into spacing
After groove 11, connecting rod 2 is vertically ajusted, spring 3 can be compressed between head 21 and the bottom of stopper slot 11.Now head 21 by
The constraint of the notch flange 111 of stopper slot 11, can only move up and down in groove but not rotate.In the annulus filling slot of feeler lever 1
Load water-swellable part 421 in one 15, and sealing ring 411 is placed in its annulus neck 2 14, be then inserted in antiseepage sleeve 4
Bar portion 22, the annulus neck 1 on antiseepage sleeve 4 is set to coordinate with the annulus neck 2 14 on feeler lever 1 so as to fixed seal ring
411.Load water-swellable with the annulus filling slot 2 42 in the contact face of another feeler lever 1 for needing to dock in antiseepage sleeve 4
Part 421, and sealing ring 411 is similarly placed in annulus neck 1.The locating ring 43 on feeler lever 1 that needs are docked again is embedding
In the detent 13 for entering antiseepage sleeve 4, positioning threads groove 12 and the bar portion 22 of connecting rod 2 are tightened, and be embedded in sealing ring 411
Between annulus neck 1 and annulus neck 2 14.Thus make to be connected as same entirety between two feeler levers 1 and connecting rod 2, on
Make not fall off between feeler lever 1 during lower mobile feeler lever 1.
When between feeler lever 1 connect after the completion of, start static penetrometer, feeler lever 1, which is under pressure, to be moved down, now top
Feeler lever 1 can act on this partial pressure on antiseepage sleeve 4, then be acted on by antiseepage sleeve 4 on the feeler lever 1 of lower section, due to head
Portion 21 can have certain displacement in stopper slot 11, therefore even if connecting rod 2 is had downwards by the pressure of top feeler lever 1
During mobile trend, its head 21 first can move in stopper slot 11, without making the thread 221 at bar portion 22 and positioning spiral shell
Relative displacement occurs between groove 12, and then makes thread 221 and positioning threads groove 12 be not easy to be destroyed.
When feeler lever 1 enters underground layer, underground water or mud can enter in the junction of two feeler levers 1 and antiseepage sleeve 4, now
Annulus filling slot 1 expands after meeting water with the water-swellable part 421 in annulus filling slot 2 42, makes antiseepage sleeve 4 and two
Feeler lever 1 connecting end surface sealing, while the sealing ring 411 between annulus neck 1 and annulus neck 2 14 can realize it is secondary
Sealing.Stop injection when feeler lever 1 reaches the depth specified underground, need to repeat above-mentioned company when connecting feeler lever 1 during this
Termination process.
When feeler lever 1 is extracted upwards, due to being connected between feeler lever 1 by connecting rod 2, thread 221 and positioning threads groove 12
Junction can be acted on by power.Now feeler lever 1 is by self gravitation and the pressure of soil side wall, and its active force is much smaller than spy
The counter-force being subject to during 1 injection of bar, so the influence very little to threaded connection place, so that feeler lever 1 has longer service life.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (10)
1. a kind of static sounding feeler lever, including feeler lever（1）, it is characterized in that：The feeler lever（1）Between pass through connecting rod（2）Connection；
The connecting rod（2）Head including rectangular-shape（21）With with head（21）Bar portion connected vertically（22）, the head
Portion（21）With bar portion（22）Form T-type structure, the bar portion（22）Outside is provided with thread（221）；The bar portion（22）Inside it is provided with
It is through to head（21）The circular hole on top（222）；
The feeler lever（1）One end be provided with and head（21）The stopper slot of cooperation（11）, the stopper slot（11）Notch it is symmetrical
Provided with flange（111）, the flange（111）The distance between be less than head（21）Width, the head（21）Thickness it is small
In stopper slot（11）Groove depth；The feeler lever（1）The other end be provided with supply bar portion（22）The positioning threads groove of screw-in（12）.
2. a kind of static sounding feeler lever according to claim 1, it is characterized in that：The flange（111）The distance between energy
Enough supply head（21）Inclination is put into stopper slot（11）It is interior, and can vertically ajust connecting rod（2）.
3. a kind of static sounding feeler lever according to claim 2, it is characterized in that：The head（21）With stopper slot（11）Bottom
Spring is provided between portion（3）.
4. a kind of static sounding feeler lever according to claim 1, it is characterized in that：The bar portion（22）Outer sheath is provided with antiseepage
Sleeve（4）, the antiseepage sleeve（4）It is clamped in two feeler levers（1）Between；The antiseepage sleeve（4）With two feeler levers（1）Contact
Annulus neck one is offered on end face（41）, the annulus neck one（41）The interior sealing ring for being provided with adaptation（411）.
5. a kind of static sounding feeler lever according to claim 4, it is characterized in that：The feeler lever（1）Both ends offer
With annulus neck one（41）The annulus neck two of identical size（14）；The sealing ring（411）One end insertion annulus neck two
（14）, other end insertion annulus neck one（41）It is interior；The sealing ring（411）Thickness be equal to annulus neck one（41）With annulus
Neck two（14）Groove depth sum.
6. a kind of static sounding feeler lever according to claim 5, it is characterized in that：The antiseepage sleeve（4）External diameter and feeler lever
（1）External diameter is identical.
7. a kind of static sounding feeler lever according to claim 6, it is characterized in that：The feeler lever（1）Close to stopper slot（11）
Annulus filling slot one is offered on the end face of side（15）；The annulus filling slot one（15）Diameter be more than annulus neck one
（41）Diameter；The antiseepage sleeve（4）With another feeler lever for needing to dock（1）Contact face is provided with and annulus filling slot one
（15）Identical annulus filling slot two（42）；The annulus filling slot one（15）With annulus filling slot two（42）Inside it is equipped with chance water
Expansion piece（421）.
8. a kind of static sounding feeler lever according to claim 7, it is characterized in that：The water-swellable part（421）By high sodium
Base bentonite material is formed.
9. a kind of static sounding feeler lever according to claim 7, it is characterized in that：The antiseepage sleeve（4）Filled out positioned at annulus
Fill groove two（42）The direction axially outside of one end is extended with locating ring（43）, the feeler lever（1）On offer and locating ring
（43）The detent of cooperation（13）.
10. a kind of static sounding feeler lever according to claim 9, it is characterized in that：The locating ring（43）With detent
（13）Between be provided with sealing ring（431）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721082568.8U CN207143903U (en) | 2017-08-27 | 2017-08-27 | A kind of static sounding feeler lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721082568.8U CN207143903U (en) | 2017-08-27 | 2017-08-27 | A kind of static sounding feeler lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207143903U true CN207143903U (en) | 2018-03-27 |
Family
ID=61670239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721082568.8U Expired - Fee Related CN207143903U (en) | 2017-08-27 | 2017-08-27 | A kind of static sounding feeler lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207143903U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029646A (en) * | 2019-05-22 | 2019-07-19 | 武汉吉欧信海洋科技股份有限公司 | A kind of underground formula static sounding system |
| CN112921944A (en) * | 2021-02-07 | 2021-06-08 | 长江水利委员会长江科学院 | Cable probe rod reliability extension rod device |
-
2017
- 2017-08-27 CN CN201721082568.8U patent/CN207143903U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029646A (en) * | 2019-05-22 | 2019-07-19 | 武汉吉欧信海洋科技股份有限公司 | A kind of underground formula static sounding system |
| CN110029646B (en) * | 2019-05-22 | 2024-01-26 | 武汉吉欧信海洋科技股份有限公司 | Downhole static sounding system |
| CN112921944A (en) * | 2021-02-07 | 2021-06-08 | 长江水利委员会长江科学院 | Cable probe rod reliability extension rod device |
| CN112921944B (en) * | 2021-02-07 | 2024-06-11 | 长江水利委员会长江科学院 | Cable probe rod reliability extension rod device |
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Address after: 213003 Yanling Middle Road, Tianning District, Changzhou, Jiangsu Province, No. 22 Patentee after: CHINACOAL JIANGSU GEOLOGY ENGINEERING RESEARCH INSTITUTE Co.,Ltd. Address before: 213003 Yanling Middle Road, Tianning District, Changzhou, Jiangsu Province, No. 22 Patentee before: Changzhou City Foundation Engineering Co.,Ltd. Address after: 213003 Yanling Middle Road, Tianning District, Changzhou, Jiangsu Province, No. 22 Patentee after: Changzhou City Foundation Engineering Co.,Ltd. Address before: 213003 Yanling Middle Road, Tianning District, Changzhou, Jiangsu Province, No. 22 Patentee before: CHANGZHOU BASIC ENGINEERING CO. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180327 |