CN215373904U - Monitoring facilities of variable height - Google Patents
Monitoring facilities of variable height Download PDFInfo
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- CN215373904U CN215373904U CN202120768123.5U CN202120768123U CN215373904U CN 215373904 U CN215373904 U CN 215373904U CN 202120768123 U CN202120768123 U CN 202120768123U CN 215373904 U CN215373904 U CN 215373904U
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Abstract
The utility model relates to the technical field of environmental monitoring, and provides a monitoring device with variable height, which comprises: the monitoring equipment comprises a monitoring equipment body, a signal receiving and transmitting device connected with the monitoring equipment body and a telescopic device connected with the signal receiving and transmitting device, wherein the telescopic device is used for driving the signal receiving and transmitting device to move so that the height of the signal receiving and transmitting device from the ground is changed. According to the utility model, by arranging the telescopic device connected with the signal receiving and transmitting device, the height of the signal receiving and transmitting device can be adjusted by the telescopic device after the monitoring equipment is installed and fixed, so that the effect that the better communication signal can be still kept even if the whole size of the monitoring equipment is not changed but the signal is enhanced or reduced is achieved, the monitoring equipment with stable communication signal and convenient transportation is provided, and the problems that the communication signal is not convenient to transport due to the overlarge size of the monitoring equipment and the communication signal is influenced due to the undersize of the monitoring equipment are effectively solved.
Description
Technical Field
The utility model relates to the technical field of environmental monitoring, in particular to monitoring equipment with variable height.
Background
The environmental monitoring refers to an action of determining the environmental quality (or the pollution level) or the change trend of the geographic characteristics thereof by measuring the representative value of the factors affecting the environmental quality or the geographic characteristics of the environment. For example, the method tracks the change of the environmental quality and determines the environmental quality level by detecting the content and the discharge of various substances which have influences on human beings and the environment, and provides a foundation and guarantee for the work of environmental management, pollution treatment and the like. For another example, geological deformation information is obtained in real time through monitoring of geographical characteristics of the environment such as earth surface displacement change, soil moisture content or soil pressure and the like, and data monitoring is carried out through a background, so that the purpose of early warning, prevention and control of geological disasters is achieved. In short, understanding the environmental level and monitoring the environment are the prerequisite for developing all the environmental works.
In the related art, various monitoring devices are installed and deployed in places far away from people's residences or municipal infrastructures, even most of the monitoring devices are located in severe environments such as severe cold and high altitude environments, and the environments generally have poor communication conditions. In addition, if the monitoring equipment is shielded by weeds, sundries and the like, communication signals of the monitoring equipment can be influenced, therefore, the monitoring equipment generally needs to have a certain height or be installed at a position with a higher height to ensure that the communication signals are smooth, but the monitoring equipment is inconvenient to transport if the monitoring equipment is too large in size, particularly, the surrounding environment of installation points of most monitoring equipment is severe, and the difficulty of installation and transportation of the monitoring equipment is further increased.
Therefore, how to provide a monitoring device with stable communication signals and convenient transportation is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide the monitoring equipment with the variable height, which has stable communication signals and is convenient to transport.
In order to achieve the purpose, the utility model provides the following technical scheme: a variable height monitoring device comprising:
monitoring the equipment body;
the signal receiving and transmitting device is connected with the monitoring equipment body;
the telescopic device is connected with the signal receiving and transmitting device and used for driving the signal receiving and transmitting device to move so that the height of the signal receiving and transmitting device from the ground is changed.
Preferably, the telescopic device comprises a telescopic rod and a driving assembly connected with the telescopic rod, the signal receiving and transmitting device is fixed to the top of the telescopic rod, and the driving assembly drives the telescopic rod to drive the signal receiving and transmitting device to move.
Preferably, the monitoring device further comprises a supporting device connected with the monitoring device body and used for supporting the monitoring device body.
Preferably, the monitoring device body comprises a housing, and the supporting device comprises a supporting leg movably accommodated on the housing and a supporting member connected with the supporting leg and generating a pressing effect on the supporting leg and the housing.
Preferably, the supporting part comprises a connecting shell fixedly connected with the shell and a torsion spring fixed on the connecting shell, and the supporting leg is pivotally connected with the connecting shell through the torsion spring.
Preferably, the connecting shell comprises a first fixed seat and a fixed pile, and the supporting leg is provided with a second fixed seat corresponding to the first fixed seat; the torsion spring comprises a first support leg fixedly connected with the fixing pile, a second support leg fixedly connected with the support leg, and a connecting part for connecting the first support leg and the second support leg; the supporting legs are pivotally connected with the first fixing seat through the second fixing seat and the connecting portion.
Preferably, the monitoring device body further comprises a control device provided with a first outer side wall, the signal transceiver is fixed inside the control device, the telescopic device is fixed inside the housing and connected with the bottom of the control device, and a first limiting part corresponding to the position of the supporting leg is arranged on the first outer side wall; when the telescopic device is in an initial state, the bottom of the control device is abutted against the top of the shell, the supporting legs are accommodated in the first limiting piece, and the supporting legs form an enclosure outside the monitoring equipment body; when the telescopic device drives the control device to move in a direction away from the top of the shell and the distance between the control device and the top of the shell exceeds a preset value, the supporting legs are separated from the first limiting piece.
Preferably, the method further comprises the following steps:
the battery module is fixed in the shell and is respectively and electrically connected with the control device, the signal receiving and transmitting device and the driving assembly;
the solar charging device comprises a first expansion part provided with a solar panel and a charging module respectively connected with the solar panel and the battery module; the charging module is fixed in the control device;
the solar panel comprises a shell, a solar panel and a solar panel positioning piece, wherein the shell is provided with a containing groove for containing the solar panel and the solar panel positioning piece fixed on the edge of the containing groove; the first unfolding portion is arranged on the first outer side wall and used for separating the solar panel from the accommodating groove and the solar panel limiting piece.
Preferably, the first unfolding portion comprises a mounting frame movably connected to the first outer side wall and a first tension spring with two ends connected to the mounting frame and the first outer side wall respectively, and the solar panel is movably connected to the mounting frame.
Preferably, still include the second portion of expanding, the second expand the portion including respectively with the fixed second extension spring of mounting bracket and third extension spring, solar panel sets up two, two solar panel passes through respectively the second extension spring with the symmetry pin joint of third extension spring is in on the mounting bracket.
According to the utility model, by arranging the telescopic device connected with the signal receiving and transmitting device, the height of the signal receiving and transmitting device can be adjusted by the telescopic device after the monitoring equipment is installed and fixed, so that the effect that the better communication signal can be still kept even if the whole size of the monitoring equipment is not changed but the signal is enhanced or reduced is achieved, the monitoring equipment with stable communication signal and convenient transportation is provided, and the problems that the communication signal is not convenient to transport due to the overlarge size of the monitoring equipment and the communication signal is influenced due to the undersize of the monitoring equipment are effectively solved.
Drawings
FIG. 1 is a cross-sectional view of one aspect of a variable height monitoring apparatus of the present invention;
FIG. 2 is an exploded view of a variable height monitoring device of the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is an exploded view of the support device of the present invention;
FIG. 5 is an enlarged view of FIG. 4 at B;
FIG. 6 is a schematic view of the support device of the present invention fixed to the housing;
FIG. 7 is an enlarged view at C of FIG. 6;
FIG. 8 is an exploded view of the solar charging device of the present invention;
FIG. 9 is a schematic diagram of a variable height monitoring device of the present invention in a standby state;
FIG. 10 is a schematic view of a monitoring device with variable height according to the present invention in an extended state.
Reference numerals:
10. monitoring the equipment body; 20. a signal transceiver; 30. a telescoping device; 301. a telescopic rod; 302. a drive assembly; 3021. a motor fixing plate; 40. a support device; 101. a housing; 41. supporting legs; 410. a support plate; 411. reinforcing ribs; 42. a support member; 422. a torsion spring; 4210. a first fixed seat; 4211. fixing the pile; 42110. a fixing hole; 4212. connecting the upper cover; 4213. connecting a lower cover; 412. a second fixed seat; 4221. a first leg; 4222. a second leg; 4223. a connecting portion; 4224. a fixing ring; 50. a control device; 51. a first outer side wall; 52. a protective cover; 53. a fixed cylinder; 54. the telescopic rod is connected with the plate; 500. a control main board; 60. a first limit piece; 70. a battery module; 80. a solar charging device; 800. a solar panel; 81. a first unfolding portion; 1011. a receiving groove; 88. a solar panel limiting part; 810. a mounting frame; 811. a first tension spring; 82. a second development part; 820. a second tension spring; 821. a third tension spring; 823. mounting a rod; 824. a pin joint frame; 888. a pin joint sleeve; 100. sensor module.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example (b): as shown in fig. 1-10, the present embodiment provides a variable height monitoring device, preferably comprising: the monitoring device comprises a monitoring device body 10, a signal receiving and transmitting device 20 connected with the monitoring device body 10 and a telescopic device 30 connected with the signal receiving and transmitting device 20, wherein the telescopic device 30 is used for driving the signal receiving and transmitting device 20 to move, so that the height of the signal receiving and transmitting device 20 from the ground is changed.
As shown in fig. 1-2, in one embodiment, the telescopic device 30 includes a telescopic rod 301 and a driving assembly 302 connected to the telescopic rod 301, the signal transceiver 20 is fixed on the top of the telescopic rod 301, and the driving assembly 302 drives the telescopic rod 301 to move the signal transceiver 20. Optionally, the driving assembly 302 is a stepping motor, the telescopic rod 301 is a lead screw, the lead screw is connected with an output shaft of the stepping motor, and the lead screw is controlled to ascend or descend by controlling the forward operation or the reverse operation of the stepping motor. In another embodiment, the driving assembly 302 may also be a telescopic cylinder, and the telescopic rod 301 may be a piston rod.
As shown in fig. 1-2, it is preferable that a supporting device 40 connected to the monitoring apparatus body 10 is further included for supporting the monitoring apparatus body 10. The support means 40 is for gripping fixation to enable the monitoring device to stand upright on the ground.
As shown in fig. 1 to 7, preferably, the monitoring device body 10 includes a housing 101, and the supporting device 40 includes a supporting leg 41 movably received on the housing 101 and a supporting member 42 connected to the supporting leg 41 and generating a pressing action on the supporting leg 41 and the housing 101. Optionally, the supporting legs 41 and the supporting members 42 are provided in several groups, and the several groups of supporting legs 41 and supporting members 42 are uniformly arranged on the casing 101. In the present embodiment, the supporting feet 41 and the supporting pieces 42 are in one-to-one correspondence, and are arranged in 8 groups. Optionally, the supporting member 42 includes a connecting housing fixedly connected to the casing 101 and a torsion spring 422 fixed on the connecting housing, and the supporting leg 41 is pivotally connected to the connecting housing through the torsion spring 422. The connecting housing includes a first fixing seat 4210 and a fixing pile 4211, and the supporting leg 41 is provided with a second fixing seat 412 corresponding to the first fixing seat 4210. Optionally, the connection housing includes an upper cover 4212 fixed to the bottom of the monitoring apparatus main body and a lower connection cover 4213 disposed below the upper cover 4212 for supporting the supporting member 42 and the supporting feet 41, and the first fixing seat 4210 and the fixing peg 4211 are disposed on a side of the upper cover 4212 facing the lower connection cover 4213. The supporting leg 41 includes a supporting plate 410 and a reinforcing rib 411 fixed on the supporting plate 410, and the second fixing seat 412 is disposed at one end of the supporting plate 410 fixed to the connecting housing. The torsion spring 422 includes a first leg 4221 fixedly connected with the spud 4211, a second leg 4222 fixedly connected with the support plate 410, and a connecting portion 4223 for connecting the first leg 4221 and the second leg 4222; the supporting foot 41 is pivotally connected to the first fixing seat 4210 through the second fixing seat 412 and the connecting portion 4223. Optionally, the fixing pile 4211 is provided with a fixing hole 42110, the end of the first leg 4221 away from the connecting portion 4223 is provided with a fixing hook, the end of the second leg 4222 away from the connecting portion 4223 is provided with a fixing ring 4224, when the support device 40 is assembled, the fixing hook is clamped in the fixing hole 42110, the fixing ring 4224 is sleeved outside the support plate 410 and the reinforcing rib 411, and the first fixing seat 4210, the second fixing seat 412 and the connecting portion 4223 are connected in a pivoting manner through a connecting shaft.
As shown in fig. 1 to 10, preferably, the monitoring device body 10 further includes a control device 50 having a first outer side wall 51, the signal transceiver 20 is fixed inside the control device 50, the expansion device 30 is fixed inside the housing 101 and connected to the bottom of the control device 50, and the first outer side wall 51 is provided with a first limiting member 60 corresponding to the supporting leg 41; when the telescopic device 30 is in the standby state, the bottom of the control device 50 abuts against the top of the housing 101, and the supporting leg 41 is received in the first limiting member 60, so that the supporting leg 41 forms an enclosure outside the monitoring device body 10; when the control device 50 is driven by the retractable device 30 to move away from the top of the housing 101 and the distance between the control device 50 and the top of the housing 101 exceeds a predetermined value, the supporting legs 41 are disengaged from the first stoppers 60. Alternatively, the housing 101 may be configured as a hollow sleeve-shaped structure with an upper opening and a lower opening, the control device 50 includes a hollow cylindrical fixed cylinder 53 configured as a lower opening and a control main board 500 fixed in the fixed cylinder 53, the signal transceiver 20 is fixed at the top of the fixed cylinder 53 and electrically connected to the control main board 500, and the top of the fixed cylinder 53 is sealed with the protection cover 52. The bottom of the fixed cylinder 53 is packaged with a telescopic rod connecting plate 54. The telescopic rod connecting plate 54 is used for connecting the telescopic rod 301 and enabling the control device 50 and the signal transceiver 20 fixed on the telescopic rod connecting plate 54 to ascend or descend under the driving of the telescopic rod 301. The first limiting member 60 is disposed outside the fixing cylinder 53 and near the protection cover 52, and is of an "L" shaped plate structure with an opening at the bottom, when the telescopic device 30 is in a standby state, the support plate 410 is accommodated in the "L" shaped plate and fixed under the limitation of the "L" shaped plate, when the telescopic device 30 drives the fixing cylinder 53 to rise and the lower edge of the "L" shaped plate is higher than the top of the support plate 410, the support plate 410 rotates in a direction away from the housing 101 by using the torsion spring 422 as a rotating shaft under the action of the torsion spring 422, and finally contacts with the ground, further, the torsion spring 422 always generates a pressing action on the support plate 410 and a connecting housing connected with the monitoring device body, so that the support device 40 can continuously act on the monitoring device body 10 and ensure that the monitoring device body 10 stands on the ground. The side of the support plate 410 facing away from the housing 101 may be provided with ground engaging spikes for enhancing the grip.
As shown in fig. 1-5, preferably, the monitoring device further includes a battery module 70 and a solar charging device 80 for charging the battery module 70, wherein the battery module 70 is fixed inside the housing 101 and electrically connected to the control device 50, the signal transceiver 20 and the driving assembly 302 respectively; inside telescopic link 301 and step motor all set up at shell 101, battery module 70 is fixed in the step motor below and is separated through motor fixing plate 3021, and battery module 70 bottom is packaged with the bottom plate, and the bottom plate is fixed and is connected upper cover 4212 top, and the bottom plate is equipped with accommodating space with connecting between the upper cover 4212, and this monitoring facilities is still including the sensor module 100 that is used for the monitoring, sensor module 100 set up in this accommodating space and with control mainboard 500 is connected.
As shown in fig. 1 to 10, the solar charging device 80 includes a first expansion portion 81 provided with a solar panel 800 and a charging module connected to the solar panel 800 and the battery module 70, respectively; the charging module is fixed inside the control device 50; the housing 101 is provided with a receiving groove 1011 for receiving the solar panel 800 and a solar panel limiting member 88 fixed on the edge of the receiving groove 1011; the first extending portion 81 is provided on the first outer sidewall 51, and the first extending portion 81 is used to separate the solar panel 800 from the receiving groove 1011 and the solar panel stopper 88.
As shown in fig. 1-2, preferably, the first unfolding portion 81 includes a mounting bracket 810 movably connected to the first outer side wall 51 and a first tension spring 811 having two ends connected to the mounting bracket 810 and the first outer side wall 51, respectively, and the solar panel 800 is movably connected to the mounting bracket 810. Optionally, a mounting rod 823 is fixed to the mounting frame 810, a pull ring is arranged on the mounting rod 823, one end of the first tension spring 811 is fixed to the first outer side wall 51, and the other end of the first tension spring is fixed to the pull ring.
As shown in fig. 8, it is preferable that the solar panel further includes a second extending portion 82, the second extending portion 82 includes a second extension spring 820 and a third extension spring 821 fixed to the mounting bracket 810, respectively, two solar panels 800 are provided, and the two solar panels 800 are symmetrically pivoted to the mounting bracket 810 through the second extension spring 820 and the third extension spring 821, respectively. Optionally, the mounting rack 810 is provided with a pivot frame 824 for mounting the solar panel 800, a pivot sleeve 888 is provided on the solar panel 800 corresponding to the pivot frame 824, and the solar panel 800 is sleeved on the pivot sleeve 888. When the monitoring device is in a standby state, the two solar panels 800 are attached to each other and then embedded into the housing 101 through the receiving grooves 1011, and the solar panel limiting members 88 are pressed against the outside of the mounting rack 810; when the monitoring device is started, the expansion device 30 drives the control device 50 and the first expansion portion 81 connected to the control device 50 to ascend, and the lower edge of the mounting block 810 is higher than the top of the solar panel limiting member 88, the mounting block 810 expands under the action of the first tension spring 811 and draws out the solar panel 800 accommodated in the housing 101 from the accommodating groove 1011, and when the solar panel 800 is completely separated from the accommodating groove 1011, the second tension spring 820 and the third tension spring 821 expand the two solar panels 800 into a horizontal shape. Optionally, the solar panel limiting member 88 and the first limiting member 60 both adopt an "L" shaped plate structure, and the limiting depth of the solar panel limiting member 88 is greater than that of the first limiting member 60, so that the supporting device 40 is opened first, and the solar panel 800 is unfolded after the supporting step is completed. Optionally, two sets of solar charging devices 80 are disposed, and the two sets of solar charging devices 80 are oppositely disposed on the first outer side wall 51.
Optionally, the monitoring device of the present invention may be installed in a throwing manner, for example, the monitoring device is transported above a designated throwing point by an unmanned aerial vehicle, and is thrown to the ground after being lowered to a suitable height, and then the telescopic device 30 is started by remote control, so that the support device 40 is opened and the ground grasping operation is completed, and when the monitoring device is vertically fixed on the ground surface, the solar charging device 80 is subsequently opened. Based on the throwing requirement, the shell, the fixed cylinder, the protective cover, the supporting device and the like are all made of high-strength anti-falling materials.
In summary, the utility model, by arranging the telescopic device connected with the signal transceiver, enables the monitoring equipment to still adjust the height of the signal transceiver through the telescopic device after being installed and fixed, so as to achieve the effect that the overall size of the monitoring equipment is not changed, but the better communication signal can still be maintained even if the size of the monitoring equipment is enhanced or reduced. In addition, the utility model is also provided with a supporting device for keeping the monitoring equipment in an upright fixed state, which can ensure that the monitoring equipment thrown to the ground is automatically righted to ensure that the monitoring equipment can be vertically arranged on the ground, and further provided with a solar charging device which can solve the energy supply problem of the monitoring equipment, thereby ensuring the long-term stable monitoring work of the monitoring equipment. Furthermore, the supporting device and the solar charging device are both provided with storage structures, so that the solar charging device can be stored inside the detection equipment or coated on the surface of the monitoring equipment in a standby state, and the solar charging device can play a role in protecting the monitoring equipment and is also favorable for storage and transportation of the monitoring equipment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (8)
1. A variable height monitoring apparatus, comprising:
monitoring the equipment body;
the signal receiving and transmitting device is connected with the monitoring equipment body;
the telescopic device is connected with the signal receiving and transmitting device and used for driving the signal receiving and transmitting device to move so as to change the height of the signal receiving and transmitting device from the ground;
the monitoring equipment body is connected with the monitoring equipment body and is used for supporting the monitoring equipment body;
the monitoring equipment body comprises a shell, and the supporting device comprises supporting legs which can be movably contained on the shell and supporting pieces which are connected with the supporting legs and can simultaneously generate a pressing effect on the supporting legs and the shell.
2. The monitoring equipment with the variable height according to claim 1, wherein the telescopic device comprises a telescopic rod and a driving assembly connected with the telescopic rod, the signal receiving and transmitting device is fixed at the top of the telescopic rod, and the driving assembly drives the telescopic rod to drive the signal receiving and transmitting device to move.
3. The height-variable monitoring device of claim 2, wherein the support member comprises a connecting housing fixedly connected to the housing and a torsion spring fixed to the connecting housing, and the support leg is pivotally connected to the connecting housing via the torsion spring.
4. The height-variable monitoring device according to claim 3, wherein the connecting housing comprises a first fixed seat and a fixed pile, and the supporting leg is provided with a second fixed seat corresponding to the first fixed seat; the torsion spring comprises a first support leg fixedly connected with the fixing pile, a second support leg fixedly connected with the support leg, and a connecting part for connecting the first support leg and the second support leg; the supporting legs are pivotally connected with the first fixing seat through the second fixing seat and the connecting portion.
5. The height-variable monitoring device according to claim 4, wherein the monitoring device body further comprises a control device provided with a first outer side wall, the signal transceiver is fixed inside the control device, the telescopic device is fixed inside the housing and connected with the bottom of the control device, and a first limiting member corresponding to the supporting leg is arranged on the first outer side wall; when the telescopic device is in an initial state, the bottom of the control device is abutted against the top of the shell, the supporting legs are accommodated in the first limiting piece, and the supporting legs form an enclosure outside the monitoring equipment body; when the telescopic device drives the control device to move in a direction away from the top of the shell and the distance between the control device and the top of the shell exceeds a preset value, the supporting legs are separated from the first limiting piece.
6. A variable height monitoring apparatus according to claim 5, further comprising:
the battery module is fixed in the shell and is respectively and electrically connected with the control device, the signal receiving and transmitting device and the driving assembly;
the solar charging device comprises a first expansion part provided with a solar panel and a charging module respectively connected with the solar panel and the battery module; the charging module is fixed in the control device;
the solar panel comprises a shell, a solar panel and a solar panel positioning piece, wherein the shell is provided with a containing groove for containing the solar panel and the solar panel positioning piece fixed on the edge of the containing groove; the first unfolding portion is arranged on the first outer side wall and used for separating the solar panel from the accommodating groove and the solar panel limiting piece.
7. The variable-height monitoring device according to claim 6, wherein the first unfolding portion comprises a mounting frame movably connected to the first outer side wall and a first tension spring with two ends connected to the mounting frame and the first outer side wall respectively, and the solar panel is movably connected to the mounting frame.
8. The variable-height monitoring device according to claim 7, further comprising a second unfolding portion, wherein the second unfolding portion comprises a second tension spring and a third tension spring, the second tension spring and the third tension spring are fixed to the mounting frame respectively, the number of the solar panels is two, and the two solar panels are symmetrically pivoted on the mounting frame through the second tension spring and the third tension spring respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120768123.5U CN215373904U (en) | 2021-04-14 | 2021-04-14 | Monitoring facilities of variable height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120768123.5U CN215373904U (en) | 2021-04-14 | 2021-04-14 | Monitoring facilities of variable height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215373904U true CN215373904U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120768123.5U Active CN215373904U (en) | 2021-04-14 | 2021-04-14 | Monitoring facilities of variable height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215373904U (en) |
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2021
- 2021-04-14 CN CN202120768123.5U patent/CN215373904U/en active Active
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