CN111998810A - Shaft branch pipe detection device - Google Patents
Shaft branch pipe detection device Download PDFInfo
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- CN111998810A CN111998810A CN202010949020.9A CN202010949020A CN111998810A CN 111998810 A CN111998810 A CN 111998810A CN 202010949020 A CN202010949020 A CN 202010949020A CN 111998810 A CN111998810 A CN 111998810A
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- branch pipe
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- shaft
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- 238000001514 detection method Methods 0.000 title claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000007689 inspection Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram 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
- 238000003384 imaging method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention is suitable for the technical field of shaft detection, and provides a shaft branch pipe detection device, which comprises: the rack comprises a first side plate and a second side plate which are arranged oppositely, and a top plate which is connected with the first side plate and the second side plate; the mounting assembly is rotatably assembled between the first side plate and the second side plate; the sonar is fixedly assembled on the mounting component and used for detecting parameters of the branch pipe; the central processing unit is arranged on the rack and is in communication connection with the sonar, the branch pipe parameters acquired by the sonar are processed by the central processing unit and then transmitted to the remote terminal equipment through the cable, and the remote terminal equipment uploads the branch pipe data to the cloud server end for storage; and the limiting mechanism is arranged between the rack and the mounting assembly and used for locking the mounting assembly on the rack so as to fix the rotating angle of the mounting assembly and also used for unlocking the mounting assembly and the rack so as to adjust the rotating angle of the mounting assembly. The invention has the advantages of high detection cost and high efficiency, does not need artificial launching detection and has high safety.
Description
Technical Field
The invention belongs to the technical field of shaft detection, and particularly relates to a shaft branch pipe detection device.
Background
In many large underwater engineering structures, it is important to monitor the deformation of the engineering structure. Due to the limitation of actual observation conditions, the traditional measurement methods of the large-scale underwater engineering structures have great problems in implementation, wherein the determination of the reference point is the greatest difficulty, for example, in the measurement of dams and underwater pipelines, the underwater reference point finding is quite difficult; secondly, the traditional method cannot continuously and accurately measure the data, and can only calculate the values of other points through the measured values of some points.
The vertical shaft is a shaft-shaped pipeline with an upright hole wall, and in order to obtain more water resources, a transverse branch pipe, also called a transverse tunnel, is arranged on the side wall of the vertical shaft. The transverse branch pipe is easy to be blocked by silt or deformed in the branch pipe in long-term use. It is therefore necessary to make regular inspections of the lateral branches of the shaft.
At present, the inspection mode of the transverse branch pipe is mostly to drain water in a vertical shaft and then to go down to the underground for inspection through a professional, or to directly enter the water bottom for inspection through a frogman. However, the existing inspection mode has the problems of high detection cost and low efficiency, and meanwhile, the manual detection has great risk. There are areas where improvements can be made.
Disclosure of Invention
The invention provides a vertical shaft branch pipe detection device, and aims to solve the problems of high detection cost and low efficiency in the conventional detection mode.
The invention is realized in this way, a shaft branch pipe detection device, comprising: the rack comprises a first side plate and a second side plate which are arranged oppositely, and a top plate which is connected with the top ends of the first side plate and the second side plate; a mounting assembly rotatably mounted between the first side plate and the second side plate; the sonar is fixedly assembled on the mounting component and used for detecting the parameters of the branch pipe; the sonar is in communication connection with the central processing unit, the branch pipe parameters acquired by the sonar are processed by the central processing unit and then transmitted to remote terminal equipment through cables, and the remote terminal equipment uploads the branch pipe data to a cloud server end for storage; and the limiting mechanism is arranged between the rack and the mounting assembly and used for locking the mounting assembly on the rack so as to fix the rotating angle of the mounting assembly and also used for unlocking the mounting assembly and the rack so as to adjust the rotating angle of the mounting assembly.
Preferably, the mounting assembly comprises: the mounting seat is arranged between the first side plate and the second side plate and used for mounting the sonar; the first rotating shaft is connected with the first side plate in a rotating mode, and the other end of the first rotating shaft is fixedly connected with the mounting seat; and one end of the second rotating shaft is rotatably connected with the second side plate, and the other end of the second rotating shaft is fixedly connected with the mounting seat.
Preferably, the first side plate is provided with a first through hole for the first rotating shaft to penetrate through, the second side plate is provided with a second through hole for the second rotating shaft to penetrate through, and the first through hole and the second through hole are coaxially arranged.
Preferably, a side of the first side plate opposite to the mounting seat is provided with a rotating handle assembled with the first rotating shaft.
Preferably, the limiting mechanism comprises: the spring is sleeved on the outer wall of the first rotating shaft, one end of the spring is fixedly connected with the inner side of the first side plate, the other end of the spring is fixedly connected with the mounting seat, and the spring is used for providing a supporting force towards the second side plate to move for the mounting seat so as to lock the mounting seat on the inner side of the second side plate.
Preferably, stop gear is still including locating the mount pad with the locating component between the second curb plate, the locating component includes: a plurality of positioning holes are formed in the second side plate and distributed at intervals in the circumferential direction around the second through hole, and the plurality of positioning holes are located on the same circumferential line; and the positioning pin is arranged on the mounting seat and matched with the positioning hole, and can rotate relative to the second side plate to correspond to the positioning hole.
Preferably, an arc-shaped sliding groove concentric with the second through hole is formed in the second side plate, and a guide pillar assembled with the arc-shaped sliding groove in a sliding mode is arranged on the mounting seat.
Preferably, the shaft branch pipe detection device further comprises a protective frame covering the outside of the sonar.
Preferably, the protection frame comprises: a plurality of guard bars fixedly connected to the mounting base and surrounding the detection device; and the protection top is arranged above the detection device and fixedly connected with the top end of the protection rod.
Compared with the prior art, the embodiment of the application mainly has the following beneficial effects:
the invention provides a vertical shaft branch pipe detection device, which comprises: the rack comprises a first side plate and a second side plate which are arranged oppositely, and a top plate which is connected with the first side plate and the second side plate; the mounting assembly is rotatably assembled between the first side plate and the second side plate; the sonar is fixedly assembled on the mounting component and used for detecting parameters of the branch pipe; and the limiting mechanism is arranged between the rack and the mounting assembly and used for locking the mounting assembly on the rack so as to fix the rotating angle of the mounting assembly and also used for unlocking the mounting assembly and the rack so as to adjust the rotating angle of the mounting assembly. The invention has the advantages of high detection cost and high efficiency, and meanwhile, the artificial launching detection is not needed, and the safety is high.
Drawings
Fig. 1 is a schematic overall structure diagram of a shaft branch pipe detection device provided by the invention;
fig. 2 is a schematic diagram of a using state of a shaft branch pipe detection device provided by the invention;
fig. 3 is a schematic diagram of another using state of the shaft branch pipe detection device provided by the invention.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
An embodiment of the present invention provides a shaft branch pipe detection apparatus, as shown in fig. 1 to 3, including: the rack 1 comprises a first side plate 11 and a second side plate 12 which are arranged oppositely, and a top plate 13 which is connected with the top ends of the first side plate 11 and the second side plate 12; the mounting assembly 2 is rotatably assembled between the first side plate 11 and the second side plate 12; the sonar 3 is fixedly assembled on the mounting component 2 and used for detecting the parameters of the branch pipe; the sonar 3 is in communication connection with the central processing unit, the branch pipe parameters collected by the sonar 3 are processed by the central processing unit and then transmitted to remote terminal equipment through cables, and the remote terminal equipment uploads the branch pipe data to a cloud server end for storage; and the limiting mechanism 4 is arranged between the rack 1 and the mounting component 2 and used for locking the mounting component 2 on the rack 1 so as to fix the rotating angle of the mounting component 2 and also used for unlocking the mounting component 2 and the rack 1 so as to adjust the rotating angle of the mounting component 2.
In this embodiment, shaft branch pipe detection device includes frame 1, installation component 2, sonar 3 and stop gear 4. Specifically, the rack 1 includes a first side plate 11 and a second side plate 12 which are oppositely arranged, and a top plate 13 which connects top ends of the first side plate 11 and the second side plate 12, and may further include a back plate 14 which connects the first side plate 11 and the second side plate 12, so as to reinforce the connection stability of the first side plate 11 and the second side plate 12. The mounting component 2 can be rotatably assembled between the first side plate 11 and the second side plate 12 and is used for mounting a sonar 3 capable of detecting parameters of the branch pipe. The limiting mechanism 4 is arranged between the frame 1 and the mounting component 2 and used for locking the mounting component 2 on the frame 1 so as to fix the rotation angle of the mounting component 2 and also used for unlocking the mounting component 2 from the frame 1 so as to adjust the rotation angle of the mounting component 2.
Wherein, sonar 3 is an electronic equipment that utilizes the propagation characteristic of sound wave under water, through electroacoustic conversion and information processing, accomplishes the underwater detection and communication task. The branch pipe parameters comprise the inner diameter of the branch pipe, the length of the branch pipe, the orientation of the branch pipe and the like. Therefore, the sonar 3 can replace a manual underground inspection mode, and the risk of manual underwater operation is avoided.
In actual use, can rotate the installation component 2 that fixedly mounted has sonar 3 for frame 1, rotate the vertical decurrent position of detecting head to sonar 3 after, utilize stop gear 4 to lock installation component 2 on frame 1, fixed good sonar 3's orientation. And then slowly descending the well shaft branch pipe detection device which is adjusted for the first time to the bottom of the well, simultaneously checking and observing the internal condition of the well shaft by using external imaging display equipment connected with sonar 3, and taking out the well shaft branch pipe detection device from the well shaft after recording the position of the pipe orifice of the branch pipe at the moment when checking and observing the pipe orifice image of the branch pipe displayed on the imaging display equipment, thereby finishing the determination work of the position of the branch pipe.
After the position of having acquireed the branch pipe, utilize stop gear 4 to remove the locking of installation component 2 and frame 1, with the turned angle to horizontal position of adjustment installation component 2, be on a parallel with the length direction of branch pipe after promptly, reuse stop gear 4 with installation component 2 relocks in frame 1, make sonar 3's detecting head fix at horizontal position, slowly descend shaft branch pipe detection device to the orificial position of branch pipe again, make sonar 3's detecting head aim at the orificial mouth of pipe of branch pipe, acquire orificial internal diameter of branch pipe and the length isoparametric of branch pipe simultaneously. And finishing the detection work of the parameters of the inner diameter and the length of the branch pipe. The branch pipe parameters collected by the sonar 3 are processed by a central processing unit (not shown in the figure) and then transmitted to remote terminal equipment (for example, a computer) through a cable (not shown in the figure), and the remote terminal equipment uploads the branch pipe data to a cloud server end (not shown in the figure) for storage.
The vertical shaft branch pipe detection device has the advantages of high efficiency, low cost and safety when used for detecting the parameters of the vertical shaft branch pipe.
In a further preferred embodiment of the present invention, as shown in fig. 1-3, the mounting assembly 2 comprises: a mounting base 21 provided between the first side plate 11 and the second side plate 12, for mounting the sonar 3; a first rotating shaft 22, one end of which is rotatably connected with the first side plate 11, and the other end of which is fixedly connected with the mounting seat 21; and a second rotating shaft 23, one end of which is rotatably connected with the second side plate 12, and the other end of which is fixedly connected with the mounting seat 21.
In the present embodiment, the mounting assembly 2 includes a mounting base 21, a first rotating shaft 22 and a second rotating shaft 23. Specifically, mount 21 is provided between first side plate 11 and second side plate 12 for mounting sonar 3. One end of the first rotating shaft 22 is rotatably connected with the inner wall of the first side plate 11, and the other end is fixedly connected with the outer wall of one side of the mounting seat 21. One end of the second rotating shaft 23 is rotatably connected to the inner wall of the second side plate 12, and the other end is fixedly connected to the outer wall of the mounting base 21 on the other side relative to the first rotating shaft 22. The relative rotation between the mounting base 21 and the frame 1 is realized through the first rotating shaft 22 and the second rotating shaft 23.
In a further preferred embodiment of the present invention, as shown in fig. 1-3, the first side plate 11 is provided with a first through hole for the first rotating shaft 22 to pass through, the second side plate 12 is provided with a second through hole for the second rotating shaft 23 to pass through, and the first through hole and the second through hole are coaxially arranged.
In the present embodiment, the first side plate 11 has a first through hole (not shown) for the first rotating shaft 22 to pass through, and the second side plate 12 has a second through hole (not shown) for the second rotating shaft 23 to pass through. Wherein first through-hole and the coaxial setting of second through-hole ensure the stability of installation component 2 and frame 1 in the rotation process.
In a further preferred embodiment of the present invention, as shown in fig. 1-3, a side of the first side plate 11 opposite to the mounting seat 21 is provided with a rotating handle 5 fitted with the first rotating shaft 22.
In the present embodiment, the rotation of the mounting assembly 2 by the worker is facilitated by fitting a rotating handle 5 to one end of the first rotating shaft 22 adjacent to the first side plate 11.
In a further preferred embodiment of the present invention, as shown in fig. 1 to 3, the limiting mechanism 4 comprises: the spring 41 is sleeved on the outer wall of the first rotating shaft 22, one end of the spring 41 is fixedly connected with the inner side of the first side plate 11, and the other end of the spring 41 is fixedly connected with the mounting seat 21, and is used for providing a resisting force towards the movement of the second side plate 12 for the mounting seat 21 so as to lock the mounting seat 21 on the inner side of the second side plate 12.
In this embodiment, the limiting mechanism 4 comprises a spring 41 sleeved on the first rotating shaft 22. Specifically, one end of the spring 41 is fixedly connected to the inner side of the first side plate 11, and the other end is fixedly connected to the outer side of the mounting seat 21. Through the spring 41 that establishes simultaneously connecting first curb plate 11 and mount pad 21 on first pivot 22, can utilize the elasticity of spring 41 to provide the tight power of support that moves towards second curb plate 12 for mount pad 21 to lock mount pad 21 in second curb plate 12 inboard, realize installation component 2 and frame 1 locking.
In a further preferred embodiment of the present invention, as shown in fig. 1 to 3, the limiting mechanism 4 further includes a positioning assembly 42 disposed between the mounting base 21 and the second side plate 12, and the positioning assembly 42 includes: a plurality of positioning holes 421 arranged on the second side plate 12 and distributed at intervals around the second through hole, wherein the plurality of positioning holes 421 are located on the same circumferential line; and a positioning pin 422 disposed on the mounting base 21 and adapted to the positioning hole 421, wherein the positioning pin 422 can rotate relative to the second side plate 12 to correspond to the positioning hole 421.
In this embodiment, the limiting mechanism 4 further comprises a positioning component 42. Specifically, the positioning assembly 42 includes a positioning hole 421 and a positioning pin 422. The positioning holes 421 are provided in plural numbers, in this embodiment, the number of the positioning holes 421 is three, and each positioning hole 421 corresponds to one orientation of the mounting component 2. A plurality of positioning holes 421 are formed on the second side plate 12 and are distributed around the second through hole periphery at intervals. Specifically, three positioning holes 421 are spaced 90 ° apart. The positioning pin 422 is disposed on the mounting base 21 to fit the positioning hole 421. The positioning pin 422 can rotate relative to the second side plate 12 to correspond to the positioning hole 421, and is abutted into the positioning hole 421 by the elastic force of the spring 41, further limiting the relative rotation between the mounting assembly 2 and the frame 1. Meanwhile, the positioning pin 422 and the positioning hole 421 can facilitate the alignment of the worker for the orientation of the installation component 2.
In a further preferred embodiment of the present invention, as shown in fig. 1-3, an arc-shaped sliding slot 6 concentric with the second through hole is formed on the second side plate 12, and a guide post 7 slidably assembled with the arc-shaped sliding slot 6 is disposed on the mounting seat 21.
In this embodiment, the arc-shaped sliding groove 6 concentric with the second through hole is formed in the second side plate 12, and the guide pillar 7 assembled with the arc-shaped sliding groove 6 in a sliding manner is arranged on the mounting seat 21, so that the mounting component 2 and the rack 1 can be guided in the process of relative rotation, and the stability of rotation of the mounting component 2 is improved.
In a further preferred embodiment of the present invention, as shown in fig. 1 to 3, the shaft branch detecting device further comprises a protective frame 8 covering the exterior of the sonar 3.
In this embodiment, the shaft branch pipe detection device further comprises a protective frame 8 covering the outside of the sonar 3. Specifically, protection frame 8 includes fixed connection on mount pad 21 to around the many guard bars of detection device setting, preferably four or more for the protection sonar 3 outside avoids sonar 3's the detection in-process collision damage. And locate detection device top and fender rod top fixed connection's protection top 82 for the protection sonar 3's top is strengthened the protection to sonar 3.
It should be noted that, for simplicity of description, the above-mentioned embodiments are described as a series of acts, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or communication connection may be an indirect coupling or communication connection between devices or units through some interfaces, and may be in a telecommunication or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The above examples are only used to illustrate the technical solutions of the present invention, and do not limit the scope of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from these embodiments without making any inventive step, fall within the scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art may still make various combinations, additions, deletions or other modifications of the features of the embodiments of the present invention according to the situation without conflict, so as to obtain different technical solutions without substantially departing from the spirit of the present invention, and these technical solutions also fall within the protection scope of the present invention.
Claims (9)
1. A hoistway leg detection apparatus, comprising:
the rack comprises a first side plate and a second side plate which are arranged oppositely, and a top plate which is connected with the top ends of the first side plate and the second side plate;
a mounting assembly rotatably mounted between the first side plate and the second side plate;
the sonar is fixedly assembled on the mounting component and used for detecting the parameters of the branch pipe;
the sonar is in communication connection with the central processing unit, the branch pipe parameters acquired by the sonar are processed by the central processing unit and then transmitted to remote terminal equipment through cables, and the remote terminal equipment uploads the branch pipe data to a cloud server end for storage; and
locating the frame with stop gear between the installation component for with the installation component lock in the frame, in order to fix the turned angle of installation component, still be used for removing the installation component with the locking of frame is in order to adjust the turned angle of installation component.
2. The hoistway leg detection apparatus of claim 1, wherein said mounting assembly comprises:
the mounting seat is arranged between the first side plate and the second side plate and used for mounting the sonar;
the first rotating shaft is connected with the first side plate in a rotating mode, and the other end of the first rotating shaft is fixedly connected with the mounting seat; and
one end of the second rotating shaft is rotatably connected with the second side plate, and the other end of the second rotating shaft is fixedly connected with the mounting seat.
3. The detecting device for the branch pipe of the shaft of claim 2, wherein the first side plate is provided with a first through hole for the first rotating shaft to pass through, the second side plate is provided with a second through hole for the second rotating shaft to pass through, and the first through hole and the second through hole are coaxially arranged.
4. A hoistway leg detector as defined in claim 1 wherein a side of said first side plate opposite said mounting base is provided with a swivel handle fitted to said first swivel shaft.
5. The hoistway leg detector of claim 4, wherein said limiting mechanism comprises:
the spring is sleeved on the outer wall of the first rotating shaft, one end of the spring is fixedly connected with the inner side of the first side plate, the other end of the spring is fixedly connected with the mounting seat, and the spring is used for providing a supporting force towards the second side plate to move for the mounting seat so as to lock the mounting seat on the inner side of the second side plate.
6. The hoistway leg detection apparatus of claim, wherein the limiting mechanism further comprises a positioning assembly disposed between the mount and the second side plate, the positioning assembly comprising:
a plurality of positioning holes are formed in the second side plate and distributed at intervals in the circumferential direction around the second through hole, and the plurality of positioning holes are located on the same circumferential line; and
and the positioning pin is arranged on the mounting seat and matched with the positioning hole, and can rotate relative to the second side plate to correspond to the positioning hole.
7. The detecting device for detecting the branch pipe of the shaft as claimed in claim 6, wherein the second side plate is provided with an arc-shaped sliding groove concentric with the second through hole, and the mounting seat is provided with a guide post slidably assembled with the arc-shaped sliding groove.
8. A shaft branch pipe detection device according to claim 6, characterized in that the shaft branch pipe detection device further comprises a protective frame covering the outside of the sonar.
9. The hoistway leg detector of claim 8, wherein said guard frame comprises:
a plurality of guard bars fixedly connected to the mounting base and surrounding the detection device; and
and the protection top is arranged above the detection device and fixedly connected with the top end of the protection rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010949020.9A CN111998810A (en) | 2020-09-10 | 2020-09-10 | Shaft branch pipe detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010949020.9A CN111998810A (en) | 2020-09-10 | 2020-09-10 | Shaft branch pipe detection device |
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| CN111998810A true CN111998810A (en) | 2020-11-27 |
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| CN202010949020.9A Pending CN111998810A (en) | 2020-09-10 | 2020-09-10 | Shaft branch pipe detection device |
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| CN109633615A (en) * | 2018-12-27 | 2019-04-16 | 上海遨拓深水装备技术开发有限公司 | A kind of multi-purpose stand device fixed for sonar installation |
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