CN109775477A - A kind of transmission shaft and drilling rod jack - Google Patents
A kind of transmission shaft and drilling rod jack Download PDFInfo
- Publication number
- CN109775477A CN109775477A CN201910182243.4A CN201910182243A CN109775477A CN 109775477 A CN109775477 A CN 109775477A CN 201910182243 A CN201910182243 A CN 201910182243A CN 109775477 A CN109775477 A CN 109775477A
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- transmission shaft
- transmission
- driving section
- peripheral surface
- outer peripheral
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 164
- 238000005553 drilling Methods 0.000 title claims abstract description 45
- 230000002093 peripheral effect Effects 0.000 claims abstract description 21
- 230000009471 action Effects 0.000 claims description 6
- 230000035515 penetration Effects 0.000 abstract description 9
- 230000003068 static effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Abstract
The present invention relates to underwater static sounding technical equipment fields, in particular to a kind of transmission shaft and drilling rod jack.A kind of transmission shaft is hollow type structure, is respectively equipped with the first driving section and the second driving section at the both ends of transmission shaft.The through-hole for entering transmission shaft inner cavity for signal transmssion line is equipped on the outer peripheral surface of transmission shaft.First driving section and the second driving section are used to cooperate with transmission device, to drive transmission shaft to rotate and move along the axis direction of transmission shaft.The case where transmission shaft structure is simple, easy to use, and the conducting wire of transmission data can effectively be avoided to knot, is effectively guaranteed the normal work of conducting wire, further ensures the operation stability of underwater cone penetration test device.
Description
Technical field
The present invention relates to underwater static sounding technical equipment fields, in particular to a kind of transmission shaft and drilling rod folding and unfolding
Mechanism.
Background technique
During carrying out underwater cone penetration test, it is used for transmission process of the conducting wire in feeler lever folding and unfolding of feeler inspection data
In easily there is the case where winding or knotting, once this occurs, will cause transmission data harness damage, to touching
The transmission for visiting data causes serious influence.
Summary of the invention
The purpose of the present invention is to provide a kind of transmission shafts, and the transmission shaft structure is simple, easy to use, can effectively avoid
The case where conducting wire of transmission data knots, is effectively guaranteed the normal work of conducting wire, further ensures underwater static(al)
The operation stability of cone penetration test device.
The embodiment of the present invention is achieved in that
A kind of transmission shaft is hollow type structure, is respectively equipped with the first driving section and the second transmission at the both ends of transmission shaft
Portion；
The through-hole for entering transmission shaft inner cavity for signal transmssion line is equipped on the outer peripheral surface of transmission shaft；
First driving section and the second driving section are used to cooperate with transmission device, to drive transmission shaft to rotate and along transmission shaft
Axis direction is mobile.
The transmission shaft structure is simple comprising the first driving section and the second driving section of both ends of the drive shaft are set, and
Since the transmission shaft is hollow type structure, the conducting wire for being used for transmission data across sounding rod center, which can pass through, when in use is set
It sets and is entered in the hollow inner cavity of transmission shaft in the through-hole on drive shaft circumference face, and as the first driving section and second are driven
The cooperating in portion and transmission device, when driving the rotation of transmission shaft and being moved along the central axis of transmission shaft, above-mentioned conducting wire
With the connection type of transmission shaft, it can effectively prevent conducting wire from the case where conducting wire winding for influencing data transmission or knotting occur
Occur.The normal work of conducting wire is effectively guaranteed, further ensures the operation stability of underwater cone penetration test device.
In an embodiment of the present invention:
First driving section includes the drive rod being fixedly connected with transmission shaft；
It is equipped with guide groove along the axis direction of transmission shaft on the outer peripheral surface of drive rod, guide groove with transmission device for matching
It closes, and drives transmission shaft rotation under the action of transmission device.
In an embodiment of the present invention:
Second driving section includes the external screw thread being arranged on the outer peripheral surface of transmission shaft, and external screw thread with transmission device for matching
It closes, and drives transmission shaft to move along the axis direction of its own in transmission shaft rotation.
In an embodiment of the present invention:
The position limiting structure for cooperating with external screw thread is additionally provided on the outer peripheral surface of transmission shaft.
In an embodiment of the present invention:
Position limiting structure includes the first limited block and the second limited block, and the first limited block and the second limit block gap are arranged.
In an embodiment of the present invention:
Second driving section includes the fixed cylinder with transmission axis connection, and the outer peripheral surface of fixed cylinder is equipped with and transmission device screw thread
The external screw thread of cooperation.
In an embodiment of the present invention:
The position limiting structure for cooperating with external screw thread is additionally provided on the outer peripheral surface of fixed cylinder.
In an embodiment of the present invention:
Position limiting structure includes the first limited block and the second limited block, and the first limited block and the second limit block gap are arranged.
In an embodiment of the present invention:
The outer peripheral surface of transmission shaft is equipped with multiple through-holes.
A kind of drilling rod jack comprising fixed frame, transmission device and above-mentioned transmission shaft；
Transmission device includes the fixing sleeve being arranged on fixed frame, driving gear set and is sequentially connected with driving gear set
Dynamic structure；
Driving gear set and the first driving section cooperate, for driving transmission shaft rotation under the action of dynamic structure；
Fixing sleeve is used to be threadedly engaged with the second driving section, so that when transmission shaft rotates, along the axis direction of transmission shaft
It is mobile.
Technical solution of the present invention at least has the following beneficial effects:
Transmission shaft structure provided by the invention is simple, easy to use, and the conducting wire of transmission data can effectively be avoided to beat
The normal work of conducting wire is effectively guaranteed in the case where knot, and the operation for further ensuring underwater cone penetration test device is steady
It is qualitative.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of drilling rod jack in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of transmission shaft in the embodiment of the present invention；
Fig. 3 is the enlarged diagram in Fig. 1 at III；
Fig. 4 is the structural schematic diagram of drilling rod jack in the embodiment of the present invention；
Fig. 5 is the enlarged diagram in Fig. 4 at V.
Icon: 100- drilling rod jack；110- fixed frame；120- transmission device；130- capstan winch；200- transmission shaft；
300- drilling rod；121- fixing sleeve；122- driving gear set；123- dynamic structure；The first driving section 210-；220- second is driven
Portion；The inner cavity 230-；231- through-hole；211- drive rod；221- external screw thread；240- position limiting structure；The first limited block of 241-；242-
Two limited blocks.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of embodiment of the present invention, it should be noted that the orientation or position of the instructions such as term "inner", "lower"
Relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation or position usually put
Relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
There is specific orientation, be constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " the
One ", " second " etc. is only used for distinguishing description, is not understood to indicate or imply relative importance.
In the description of embodiment of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term
" setting ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, can be directly connected, can also can be in two elements indirectly connected through an intermediary
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body meaning.
Embodiment
Fig. 1 is please referred to, Fig. 1 shows the specific structure of the drilling rod jack 100 provided in embodiment.
From figure 1 it appears that the drilling rod jack 100 includes fixed frame 110, transmission device 120 and transmission shaft
200。
Wherein, referring to figure 2., transmission shaft 200 is hollow type structure, is respectively equipped with the first biography at the both ends of transmission shaft 200
Dynamic portion 210 and the second driving section 220.It is equipped on the outer peripheral surface of transmission shaft 200 and enters in transmission shaft 200 for signal transmssion line
The through-hole 231 of chamber 230.First driving section 210 and the second driving section 220 are used to cooperate with transmission device 120, to drive transmission shaft
200 rotate and move along the axis direction of transmission shaft 200.
Referring to figure 3., Fig. 4 and Fig. 5, transmission device 120 include fixing sleeve 121, the driving cog being arranged on fixed frame 110
Wheel group 122 and the dynamic structure 123 being sequentially connected with driving gear set 122；Driving gear set 122 and the first driving section 210
Cooperation, for driving transmission shaft 200 to rotate under the action of dynamic structure 123；Fixing sleeve 121 is used for and the second driving section 220
It is threadedly engaged, so that the axis direction along transmission shaft 200 moves when transmission shaft 200 rotates.
It should be noted that the drilling rod jack 100 can apply underwater cone penetration test device.It is underwater being applied to
When on cone penetration test device, its role is to be sequentially connected with power device, the folding and unfolding movement of drilling rod 300 is completed.Specifically
, the capstan winch 130 for folding and unfolding drilling rod 300 is fixedly connected with transmission shaft 200, passes through the rotation and mobile drive of transmission shaft 200
Capstan winch 130 is rotated relative to fixed frame 110 and movement, to complete the movement of folding and unfolding drilling rod 300.
The drilling rod jack 100 comprising fixed frame 110, transmission device 120 and transmission shaft 200.Transmission shaft 200
The first driving section 210 and the second driving section 220 including 200 both ends of transmission shaft are arranged in, and due to the transmission shaft 200 be
Empty formula structure, the conducting wire for being used for transmission data across sounding rod center, which can pass through, when in use is arranged outside transmission shaft 200
Through-hole 231 on circumferential surface enters in the hollow inner cavity 230 of transmission shaft 200.Due to the first driving section 210 and driving gear set
122 cooperation, and under the drive of driving gear set 122, the first driving section 210 will drive the rotation of transmission shaft 200；It is being driven
When axis 200 rotates, the second driving section 220 is threadedly engaged with fixing sleeve 121, therefore enables to transmission shaft 200 on rotation while edge
The central axial direction of its own is mobile.The connection type of above-mentioned conducting wire and transmission shaft 200, can be in the drilling rod jack
What the conducting wire winding or conducting wire for effectively preventing conducting wire appearance influence data from transmitting during 100 folding and unfolding drilling rods 300 knotted
It happens.The normal work of drilling rod jack 100 is effectively guaranteed, further ensures using the drilling rod jack
The operation stability of 100 underwater cone penetration test device.
Further, in the present embodiment, the first driving section 210 includes the drive rod being fixedly connected with transmission shaft 200
211.It is equipped with guide groove along the axis direction of transmission shaft 200 on the outer peripheral surface of drive rod 211, guide groove is used for and transmission device
120 cooperations, and drive transmission shaft 200 to rotate under the action of transmission device 120.By the way that guide groove is arranged on drive rod 211,
During cooperating the purpose is to the driving gear set 122 by guide groove and transmission device 120, pass through guide groove and driving cog
The engaging of wheel group 122 drives transmission shaft 200 to drive drive rod 211 to rotate during driving gear set 122 rotates
Rotation.At the same time, the central axis due to guide groove along transmission shaft 200 is arranged, and the drilling rod jack 100 is in folding and unfolding
During drilling rod 300, the central axial direction along transmission shaft 200 is needed to move, to guarantee the correct folding and unfolding position of drilling rod 300
Set, thus guide groove setting when, it is also possible that transmission shaft 200 can be driving gear set 122 cooperate while, relative to
Driving gear set 122 is moved along the axis direction of its own.In addition, drive rod 211 is during setting, it can be with transmission shaft
200 is detachably connected, and the purpose is to the drive rods 211 convenient for replacing different length during use.By replacing not
Same drive rod 211 can adjust the length of drive rod 211 and the cooperation of driving gear set 122, receive from there through the drilling rod is adjusted
Laying mechanism 100 is in folding and unfolding drilling rod 300, the moving range of transmission shaft 200, to realize the drilling rod 300 to be able to carry out folding and unfolding
Length be adjusted.
Secondly, in the present embodiment, due to drive rod 211 under the mating reaction of driving gear set 122 and guide groove energy
Enough drive transmission shaft 200 rotate, in order to enable transmission shaft 200 rotation axis rotate during, can be along transmission shaft 200
Mandrel line is mobile, and to complete the folding and unfolding movement of drilling rod 300, therefore the second driving section 220 may include transmission shaft 200 is arranged in outer
External screw thread 221 on circumferential surface, external screw thread 221 is used to be threadedly engaged with the fixing sleeve 121 of transmission device 120, in transmission shaft 200
Transmission shaft 200 is driven to move along the axis direction of its own when rotation.
Further, to guarantee during folding and unfolding drilling rod 300, the drilling rod 300 of 100 folding and unfoldings of drilling rod jack
Length is in the range of it can bear, therefore in the present embodiment, be additionally provided with and be used for and external screw thread on the outer peripheral surface of transmission shaft 200
The position limiting structure 240 of 221 cooperations realizes the effect of the moving range of limitation transmission shaft 200 by position limiting structure 240.
Specifically, in the present embodiment, position limiting structure 240 may include the first limited block 241 and the second limited block 242,
First limited block 241 and the second limited block 242 interval are arranged.And the position that second connecting portion cooperates with fixing sleeve 121 is located at
Between first limited block 241 and the second limited block 242, the cooperation of the second driving section 220 and fixing sleeve 121 can be limited as a result,
Range realizes the restriction effect to the moving range of transmission shaft 200.To guarantee during folding and unfolding drilling rod 300, which is received
300 length of drilling rod of 100 folding and unfoldings of laying mechanism is in the range of it can bear.
It should be noted that in the above content, in the drive rod 211 and position limiting structure for passing through the first driving section 210
It when the moving range of 240 pairs of transmission shafts 200 limits, needs to be used in conjunction with each other, and minimum zone between the two is
The maximum moving range of the transmission shaft 200 of the drilling rod jack 100.
And in other embodiments of the invention, the second driving section 220 can also include the fixation connecting with transmission shaft 200
Cylinder (not shown), the outer peripheral surface of fixed cylinder are equipped with the external screw thread (not shown) being threadedly engaged with transmission device 120.
It should be noted that fixed cylinder and transmission shaft 200 be it is detachably connected, the purpose is to being capable of consolidating by replacement different length
Safety barrel, further to cooperate the second driving section 220 limitation of range with fixing sleeve 121.Specifically, being filled in fixed cylinder and transmission
It sets 120 fixing sleeve 121 to be threadedly engaged, in addition, being additionally provided with the limit for cooperating with external screw thread 221 on the outer peripheral surface of fixed cylinder
Bit architecture (not shown).And second connecting portion is located at the first limited block with the position that fixing sleeve 121 cooperates and (does not show in figure
Out) and between the second limited block (not shown), the cooperation model of the second driving section 220 and fixing sleeve 121 can be limited as a result,
It encloses, realizes the restriction effect to the moving range of transmission shaft 200.To guarantee during folding and unfolding drilling rod 300, the drilling rod folding and unfolding
300 length of drilling rod of 100 folding and unfoldings of mechanism is in the range of it can bear.It should be noted that being passed by replacement second
The fixed cylinder in dynamic portion 220 needs the biography with the first above-mentioned driving section 210 when realizing the range adjustment mobile to transmission shaft 200
The restriction effect of lever 211 and position limiting structure (not shown) cooperates.
It further, in the present embodiment, is the drilling rod 300 convenient for folding and unfolding different length, in the outer peripheral surface of transmission shaft 200
It is equipped with multiple through-holes 231.
The working principle of the drilling rod jack 100 is:
The drilling rod jack 100 comprising fixed frame 110, transmission device 120 and transmission shaft 200.Transmission shaft 200
The first driving section 210 and the second driving section 220 including 200 both ends of transmission shaft are arranged in, and due to the transmission shaft 200 be
Empty formula structure, the conducting wire for being used for transmission data across sounding rod center, which can pass through, when in use is arranged outside transmission shaft 200
Through-hole 231 on circumferential surface enters in the hollow inner cavity 230 of transmission shaft 200.Due to the first driving section 210 and driving gear set
122 cooperation, and under the drive of driving gear set 122, the first driving section 210 will drive the rotation of transmission shaft 200；It is being driven
When axis 200 rotates, the second driving section 220 is threadedly engaged with fixing sleeve 121, therefore enables to transmission shaft 200 on rotation while edge
The central axial direction of its own is mobile.The connection type of above-mentioned conducting wire and transmission shaft 200, can be in the drilling rod jack
What the conducting wire winding or conducting wire for effectively preventing conducting wire appearance influence data from transmitting during 100 folding and unfolding drilling rods 300 knotted
It happens.The normal work of drilling rod jack 100 is effectively guaranteed, further ensures using the drilling rod jack
The operation stability of 100 underwater cone penetration test device.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of transmission shaft, it is characterised in that:
The transmission shaft is hollow type structure, is respectively equipped with the first driving section and the second driving section at the both ends of the transmission shaft；
The through-hole for entering the transmission shaft inner cavity for signal transmssion line is equipped on the outer peripheral surface of the transmission shaft；
First driving section and second driving section are used to cooperate with transmission device, to drive the transmission shaft rotation and edge
The axis direction of the transmission shaft is mobile.
2. transmission shaft according to claim 1, it is characterised in that:
First driving section includes the drive rod being fixedly connected with the transmission shaft；
It is equipped with guide groove along the axis direction of the transmission shaft on the outer peripheral surface of the drive rod, the guide groove is used for and institute
Transmission device cooperation is stated, and drives the transmission shaft to rotate under the action of the transmission device.
3. transmission shaft according to claim 2, it is characterised in that:
Second driving section includes the external screw thread being arranged on the outer peripheral surface of the transmission shaft, the external screw thread be used for it is described
Transmission device cooperation, and drive the transmission shaft to move along the axis direction of its own in transmission shaft rotation.
4. transmission shaft according to claim 3, it is characterised in that:
The position limiting structure for cooperating with the external screw thread is additionally provided on the outer peripheral surface of the transmission shaft.
5. transmission shaft according to claim 4, it is characterised in that:
The position limiting structure includes the first limited block and the second limited block, and first limited block and described second limit block gap
Setting.
6. transmission shaft according to claim 1, it is characterised in that:
Second driving section includes the fixed cylinder with the transmission axis connection, the outer peripheral surface of the fixed cylinder be equipped with it is described
The external screw thread that transmission device is threadedly engaged.
7. transmission shaft according to claim 6, it is characterised in that:
The position limiting structure for cooperating with the external screw thread is additionally provided on the outer peripheral surface of the fixed cylinder.
8. transmission shaft according to claim 7, it is characterised in that:
The position limiting structure includes the first limited block and the second limited block, and first limited block and described second limit block gap
Setting.
9. transmission shaft according to claim 1, it is characterised in that:
The outer peripheral surface of the transmission shaft is equipped with multiple through-holes.
10. a kind of drilling rod jack, it is characterised in that:
The drilling rod jack includes fixed frame, transmission device and the transmission as described in any one of claim 1-9
Axis；
The transmission device include the fixing sleeve being arranged on the fixed frame, driving gear set and with the driving gear set
The dynamic structure of transmission connection；
The driving gear set and first driving section cooperate, for driving the transmission under the action of dynamic structure
Axis rotation；
The fixing sleeve is used to be threadedly engaged with second driving section, so that when the transmission shaft rotates, along the transmission
The axis direction of axis is mobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910182243.4A CN109775477A (en) | 2019-03-07 | 2019-03-07 | A kind of transmission shaft and drilling rod jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910182243.4A CN109775477A (en) | 2019-03-07 | 2019-03-07 | A kind of transmission shaft and drilling rod jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109775477A true CN109775477A (en) | 2019-05-21 |
Family
ID=66488883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910182243.4A Pending CN109775477A (en) | 2019-03-07 | 2019-03-07 | A kind of transmission shaft and drilling rod jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109775477A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100613131B1 (en) * | 2005-03-08 | 2006-08-17 | 한국해양연구원 | Cone pentration system for site investigation |
| CN2871471Y (en) * | 2006-01-27 | 2007-02-21 | 中国科学院沈阳自动化研究所 | Underwater cable retracting mechanism |
| US20070158110A1 (en) * | 2006-01-12 | 2007-07-12 | Vermeer Manufacturing Company | Rod transfer mechanism synchronizer apparatus and method |
| CN204624862U (en) * | 2015-05-11 | 2015-09-09 | 福建侨龙专用汽车有限公司 | Hose reel structure |
| CN205555749U (en) * | 2016-03-30 | 2016-09-07 | 国网山东省电力公司平阴县供电公司 | Novel pay off rack |
| CN106638539A (en) * | 2017-01-06 | 2017-05-10 | 长江水利委员会长江科学院 | Automatic rod connecting system for cable probing rods and static penetration test method |
| CN109052066A (en) * | 2018-09-12 | 2018-12-21 | 国网青海省电力公司检修公司 | A kind of power supply disks |
| CN209635651U (en) * | 2019-03-07 | 2019-11-15 | 中国人民解放军海军研究院海防工程设计研究所 | A kind of transmission shaft and drilling rod jack |
-
2019
- 2019-03-07 CN CN201910182243.4A patent/CN109775477A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100613131B1 (en) * | 2005-03-08 | 2006-08-17 | 한국해양연구원 | Cone pentration system for site investigation |
| US20070158110A1 (en) * | 2006-01-12 | 2007-07-12 | Vermeer Manufacturing Company | Rod transfer mechanism synchronizer apparatus and method |
| CN2871471Y (en) * | 2006-01-27 | 2007-02-21 | 中国科学院沈阳自动化研究所 | Underwater cable retracting mechanism |
| CN204624862U (en) * | 2015-05-11 | 2015-09-09 | 福建侨龙专用汽车有限公司 | Hose reel structure |
| CN205555749U (en) * | 2016-03-30 | 2016-09-07 | 国网山东省电力公司平阴县供电公司 | Novel pay off rack |
| CN106638539A (en) * | 2017-01-06 | 2017-05-10 | 长江水利委员会长江科学院 | Automatic rod connecting system for cable probing rods and static penetration test method |
| CN109052066A (en) * | 2018-09-12 | 2018-12-21 | 国网青海省电力公司检修公司 | A kind of power supply disks |
| CN209635651U (en) * | 2019-03-07 | 2019-11-15 | 中国人民解放军海军研究院海防工程设计研究所 | A kind of transmission shaft and drilling rod jack |
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