CN215064517U - Hydrological telemetering terminal - Google Patents
Hydrological telemetering terminal Download PDFInfo
- Publication number
- CN215064517U CN215064517U CN202121301246.4U CN202121301246U CN215064517U CN 215064517 U CN215064517 U CN 215064517U CN 202121301246 U CN202121301246 U CN 202121301246U CN 215064517 U CN215064517 U CN 215064517U
- Authority
- CN
- China
- Prior art keywords
- sealing
- shell
- battery
- sealing structure
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Casings For Electric Apparatus (AREA)
Abstract
The utility model discloses a hydrological telemetering terminal, which comprises a shell, a circuit board, a battery, a cover body, a first sealing structure, a connector assembly, a second sealing structure and a pressing base, wherein an upper cavity and a lower cavity are arranged in the shell; the first sealing structure is used for enabling the cover body to be tightly matched with the shell and sealing the upper cavity; the shell is provided with a connector mounting hole, the connector assembly penetrates through the connector mounting hole, the connector assembly is used for enabling an external electrical element to be electrically connected with the circuit board, and the second sealing structure is used for sealing a gap between the connector assembly and the connector mounting hole; the pressing base is detachably connected with the shell and seals the lower cavity. The utility model discloses a circuit board and battery are independently sealed, and the change of battery is comparatively convenient, can do benefit to the maintenance cost that reduces the battery, and can improve waterproof performance and sealing performance, and the dismouting is convenient.
Description
Technical Field
The utility model relates to a hydrology telemetering equipment especially relates to a hydrology telemetering measurement terminating machine.
Background
The hydrological telemetering terminal is mainly designed aiming at the complex environment of hydrological telemetering points, the hydrological telemetering points are mostly distributed in the underground and the field of a pipe network, and the hydrological telemetering terminal needs to work for a long time in the environment with high humidity, rain or even immersion in water, high temperature solarization, high cold freezing and no power supply mostly. Hydrology telemetering measurement terminating machine is often used in water conservancy monitoring, receives the data of equipment such as water gauge, water pressure sensor, level sensor, regularly uploads to data monitoring center through various communication network deployment modes, and the central station can carry out water measurement, leakage statistics, water pressure water level early warning according to the data that collects. The central station and the field maintenance personnel can remotely call, remotely configure and remotely maintain the remote measuring terminal. The hydrological telemetering terminal plays an important role in the water conservancy monitoring process.
The existing hydrological telemetering terminal has the following defects: 1. the waterproof performance is poor, and particularly, the inlet and outlet cables are water inlet multiple points; 2. the circuit board and the battery are placed in the same cavity and are not sealed independently, so that circuit elements and circuits are easy to damage when the battery is replaced, and secondary maintenance is caused; 3. the battery cannot guarantee the subsequent sealing performance after replacement due to expiration; 4. the fixing mode is complex and is not easy to disassemble.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a hydrology telemetering measurement terminating machine, its circuit board and battery are independently sealed, and the change of battery is comparatively convenient, can do benefit to the maintenance cost who reduces the battery, and is favorable to improving waterproof performance and sealing performance, and the dismouting is convenient.
The purpose of the utility model is realized by adopting the following technical scheme:
a hydrological telemetry terminal, comprising:
the battery comprises a shell, a circuit board and a battery, wherein an upper cavity and a lower cavity are formed in the shell in a separated mode, the circuit board is installed in the upper cavity, the battery is detachably installed in the lower cavity, and the battery is electrically connected with the circuit board;
the cover body and the first sealing structure are used for enabling the cover body to be tightly matched with the shell body and sealing the upper cavity body;
the shell is provided with a joint mounting hole communicated with the upper cavity, the joint assembly penetrates through the joint mounting hole, the joint assembly is used for connecting an external electrical element and enabling the external electrical element to be electrically connected with the circuit board, and the second sealing structure is used for sealing a gap between the joint assembly and the joint mounting hole;
and the pressing base is detachably connected with the shell and seals the lower cavity.
Further, the first sealing structure may adhere the cover to the case.
Furthermore, the pressing device further comprises a third sealing structure, wherein the third sealing structure is detachably connected with the shell and the pressing base respectively and is used for pressing and fixing the pressing base on the shell.
Further, the third sealing structure comprises a sealing plug, a first sealing ring and a second sealing ring, the sealing plug is in clearance fit with the shell, the first sealing ring is arranged between the sealing plug and the shell and used for forming radial sealing, and the second sealing ring is arranged between the sealing plug, the shell and the pressing base and used for forming axial and radial combined sealing.
Further, the sealing structure also comprises a fourth sealing structure, and the fourth sealing structure is used for filling the upper cavity and is adhered to the cover body.
The battery box is arranged in the lower cavity, the battery is placed in the battery box, and the fifth sealing structure is used for sealing the battery box and fixing the battery.
The pressing base is used for fixing the shell, and the pressing base is used for pressing the shell to the pressing base.
Further, the bracket is detachably connected with the pressing base.
Further, the clamping device further comprises a fastening piece and a blocking structure, wherein the pressing base and the shell are both provided with connecting through holes, the fastening piece penetrates through the connecting through holes and is in threaded connection with the connecting through holes, and the blocking structure is used for penetrating through the connecting through holes in the pressing base and closing the connecting through holes.
Further, the circuit board is electrically connected with the battery through a cable, the shell is provided with an electric connection through hole for the cable to pass through, and the electric connection through hole is respectively communicated with the upper cavity and the lower cavity.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the upper cavity and the lower cavity are formed by separating the inside of the shell, so that the circuit board and the battery can be independently installed in the upper cavity and the lower cavity respectively, the battery can be conveniently replaced, and the maintenance cost of the battery can be reduced. The first sealing structure can make lid and casing closely cooperate and can be sealed with the epicoele body, it can seal the cavity down to compress tightly the base, even casing detachably back-off is on compressing tightly the base for casing outside air pressure is greater than casing inside air pressure, outside water is difficult to get into cavity down, the second sealing structure can be sealed the clearance between joint Assembly and joint mounting hole, so, be favorable to improving this hydrology telemetering measurement terminating machine waterproof performance and sealing performance, the dismouting is convenient.
Drawings
Fig. 1 is a schematic structural diagram of a hydrological telemetering terminal in an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of an angle of the hydrological telemetry terminal according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of another angle of the hydrological telemetry terminal according to the embodiment of the present invention;
fig. 4 is a schematic top view of a hydrological telemetering terminal according to an embodiment of the present invention;
in the figure: 1. an upper cover; 2. a housing; 3. a bracket; 4. an aircraft joint; 5. an antenna terminal; 6. a cover body; 7. a first seal structure; 8. a circuit board; 9. a fourth seal structure; 10. a sponge cushion block; 11. a fifth seal structure; 12. a battery case; 13. a battery; 14. a sealing plug; 15. a first seal ring; 16. a second seal ring; 17. pressing the base; 18. a set screw; 19. a nut; 20. a wire passing rubber plug; 21. a fastener; 22. lead sealing; 23. and a second seal structure.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
As shown in fig. 1-4, an embodiment of the present invention provides a hydrological telemetering terminal, which includes a housing 2, a circuit board 8, a battery 13, a cover 6, a first sealing structure 7, a connector assembly, a second sealing structure 23 and a pressing base 17, wherein an upper cavity and a lower cavity are formed inside the housing 2, the circuit board 8 is installed in the upper cavity, the battery 13 is detachably installed in the lower cavity, and the battery 13 is electrically connected to the circuit board 8; the first sealing structure 7 is used for enabling the cover body 6 to be tightly matched with the shell body 2 and sealing the upper cavity; a connector mounting hole communicated with the upper cavity is formed in the shell 2, the connector assembly penetrates through the connector mounting hole, the connector assembly is used for connecting an external electrical element and enabling the external electrical element to be electrically connected with the circuit board 8, and the second sealing structure 23 is used for sealing a gap between the connector assembly and the connector mounting hole; the pressing base 17 is detachably connected to the housing 2 and closes the lower chamber.
On the basis of the structure, the upper cavity and the lower cavity are formed by separating the inside of the shell 2, so that the circuit board 8 and the battery 13 can be respectively and independently installed in the upper cavity and the lower cavity, the battery 13 can be conveniently replaced, and the maintenance cost of the battery 13 can be favorably reduced. First seal structure 7 can make lid 6 and casing 2 closely cooperate and can be sealed with the epicoele body, it can seal the cavity down to compress tightly base 17, even casing 2 detachably back-off is compressing tightly base 17, make casing 2 outside air pressure be greater than casing 2 inside air pressure, outside water is difficult to get into cavity down, second seal structure 23 can be sealed the clearance between joint Assembly and the joint mounting hole, so, be favorable to improving this hydrological telemetering terminal machine waterproof performance and sealing performance, the dismouting is convenient.
In this embodiment, the hydrological telemetering terminal further comprises an upper cover 1, wherein the upper cover 1 is detachably mounted on the housing 2, so that the upper cover 1 and the circuit board 8 are respectively arranged on the upper side and the lower side of the cover body 6, that is, the upper cover 1 can enable the cover body 6 to be arranged on the inner side of the housing 2, and the upper cover can effectively cover and protect the housing.
As a preferred embodiment in this embodiment, the first sealing structure 7 can adhere the cover 6 to the housing 2, so as to facilitate the effective installation of the cover 6 and improve the sealing performance of the upper cavity.
In this embodiment, the first sealing structure 7 is a UV adhesive, which is also called a shadowless adhesive, a photosensitive adhesive and an ultraviolet curing adhesive, and is a kind of adhesive that can be cured only by ultraviolet irradiation, so the cover body 6 is a transparent cover, and the upper cover 1 can also be a transparent cover or a light hole convenient for ultraviolet irradiation is formed on the upper cover 1. The UV adhesive has no VOC volatile matter, has no pollution to the ambient air, and is beneficial to the effective installation of the cover body 6 and the improvement of the sealing performance of the upper cavity.
In other embodiments, the first sealing structure 7 is an adhesive such as a hot melt adhesive, OCA adhesive, or the like. At this time, the cover body 6 and the upper cover 1 may be made of opaque materials.
In the present embodiment, the second sealing structure 23 is an O-ring, and the connector assembly includes an aviation connector 4 and an antenna connector 5, where the aviation connector 4 is used for connecting with a rain gauge, and the antenna connector 5 realizes signal transmission.
In other embodiments, where the second sealing structure 23 is a sealing gasket or other sealing member, the joint assembly may be supplemented or replaced with a water gauge joint or the like.
In the present embodiment, the number of the air terminal 4 and the antenna terminal 5 is two.
In other embodiments, the number of the air terminal 4 and the antenna terminal 5 may be one or more than two.
In this embodiment, this hydrology telemetering terminal still includes the third seal structure, and the third seal structure is connected with casing 2, compress tightly base 17 and can dismantle respectively for compress tightly base 17 and fix on casing 2, in order to do benefit to the sealing performance of further improvement lower cavity, so, make the inside sealing performance of casing 2 further promote.
As a preferred embodiment, the third sealing structure comprises a sealing plug 14, a first sealing ring 15 and a second sealing ring 16, the sealing plug 14 is in clearance fit with the housing 2, the first sealing ring 15 is arranged between the sealing plug 14 and the housing 2 for forming a radial seal, that is, the first sealing ring 15 is sleeved on the upper side of the sealing plug 14, and the sealing plug 14 and the housing 2 are matched together to press the first sealing ring 15; the second sealing ring 16 is arranged among the sealing plug 14, the shell 2 and the pressing base 17 and used for forming axial and radial combined sealing, namely the second sealing ring 16 is sleeved on the lower side of the sealing plug 14, and the sealing plug 14 is matched with the shell 2 and the pressing base 17 to press the second sealing ring 16; thus, through the two sealing modes, the lower cavity body obtains better sealing performance, and the sealing performance inside the shell 2 is better.
In the embodiment, after the pressing base 17 is removed, the sealing plug 14 is preferably made of a rustless metal material in water, can be taken out for secondary use, does not change the size greatly, and does not affect the sealing performance while realizing the replacement of the battery 13.
In this embodiment, the first sealing ring 15 and the second sealing ring 16 are both O-rings, which is beneficial to improving the sealing performance of the third sealing structure.
In other embodiments, the first seal ring 15 and/or the second seal ring 16 is a sealing gasket or other sealing component.
In this embodiment, the number of the first seal rings 15 is two, which is beneficial to improving the sealing performance of the third seal structure.
In other embodiments, the number of the first sealing rings 15 is one or more than two, and can be set according to actual needs.
In this embodiment, since the upper cavity is filled with glue, the housing 2 is turned over on the pressing base 17, so that the air pressure outside the housing 2 is greater than the air pressure inside the housing 2, and therefore, even if the first sealing ring 15 and the second sealing ring 16 are completely failed, the hydrological telemetering terminal cannot enter water when being placed into water.
In a more preferred embodiment, the hydrological telemetering terminal further comprises a fourth sealing structure 9, and the fourth sealing structure 9 is used for filling the upper cavity and is adhered to the cover body 6, so that the sealing performance of the upper cavity is improved, and the sealing performance of the interior of the shell 2 is improved.
In this embodiment, fourth seal structure 9 is the three proofings flexible glue, can make the last cavity reach the sealing performance of preferred through pouring into the three proofings flexible glue, forms transparent, elasticity, the glossy protection film of one deck after the three proofings flexible glue solidification, can cover circuit board 8 in the cavity, plays waterproof damage prevention effect, and its inside circuit board 8 is seen clearly to the accessible three proofings flexible glue, is favorable to improving circuit board 8's maintenance efficiency.
In other embodiments, the fourth sealing structure 9 is a potting adhesive or other adhesives, but compared with the three-proofing soft adhesive, the circuit board 8 inside cannot be seen clearly through the potting adhesive.
In this embodiment, the hydrological telemetering terminal further comprises a battery box 12 and a fifth sealing structure 11, wherein the battery box 12 is arranged in the lower cavity, the battery 13 is placed in the battery box 12, the fifth sealing structure 11 is used for sealing the battery box 12 and fixing the battery 13, so that the battery 13 can be effectively installed in the battery box 12, and the fifth sealing structure 11 can improve the sealing performance of the battery box 12 so as to reduce the maintenance cost of the battery 13.
In this embodiment, the fifth sealing structure 11 is made of a three-proofing hard adhesive, which is beneficial to effectively install the battery 13 in the battery box 12 and improve the sealing performance of the battery box 12, and is also convenient for disassembling and assembling the battery box 12.
In other embodiments, the fifth sealing structure 11 is a potting adhesive or other adhesive.
In the present embodiment, the fifth sealing structure 11 is connected to the inner wall of the casing 2, and specifically, the fifth sealing structure 11 is connected to the inner wall of the casing 2 through the sponge packing 10, and the characteristics of the sponge packing 10 are utilized to facilitate the assembly and disassembly of the battery 13.
As a preferred embodiment, the hydrological telemetering terminal further comprises a bracket 3, wherein a fixing groove is formed on the bracket 3 and is used for fixing the shell 2 and the pressing base 17 together, so that the main structure consisting of the cover body 6, the shell 2 and the pressing base 17 is effectively supported by the bracket 3, the shell 2 can be reversely buckled on the pressing base 17, the upper cavity and the lower cavity are vertically arranged, the hydrological telemetering terminal is effectively installed, and the waterproof performance and the sealing performance of the hydrological telemetering terminal can be improved.
In this embodiment, the fixed slot is the L-shaped groove, enables foretell major structure through bracket 3 and vertically installs on bracket 3 to do benefit to casing 2 and tightly detain on compressing tightly base 17, be favorable to improving this hydrology telemetering measurement terminal machine waterproof performance and sealing performance.
In this embodiment, the shape of fixed slot sets up according to the downside of casing 2 to it is spacing all around to do benefit to form to casing 2, can further improve bracket 3 to major structure's supporting effect.
As a preferred embodiment, the bracket 3 is detachably connected with the pressing base 17, so that the hydrological telemetering terminal is convenient to disassemble and assemble.
In this embodiment, the bracket 3 is connected with the pressing base 17 through threads, fixing through holes are formed in both the bracket 3 and the pressing base 17, nuts 19 are embedded in the fixing through holes in the pressing base 17, nut 19 through holes are formed in the nuts 19, and fixing screws 18 are inserted into the nut 19 through holes and are in threaded connection with the nut 19 through holes, so that the pressing base 17 is locked on the bracket 3, and even if the main structure can be fastened on the bracket 3, the separation of the main structure and the bracket 3 is conveniently realized through the unscrewing of the fixing screws 18.
In other embodiments, the bracket 3 and the pressing base 17 are connected by a snap fit.
As a preferred embodiment, the hydrological telemetering terminal further comprises a fastening piece 21 and a blocking structure, wherein the pressing base 17 and the shell 2 are both provided with a connecting through hole, the fastening piece 21 penetrates through the connecting through hole and is in threaded connection with the connecting through hole, and the blocking structure is used for penetrating through the connecting through hole in the pressing base 17 and closing the connecting through hole, so that the blocking structure is beneficial to preventing a non-professional person from disassembling and causing a fault.
In practical implementation, the fastening member 21 is a screw or a bolt, which is beneficial to improving the stability of the connection structure of the pressing base 17 and the housing 2.
In this embodiment, the sealing structure is a lead sealing plug 22, so as to facilitate the effective sealing of the connecting through hole on the pressing base 17.
In this embodiment, the circuit board 8 is electrically connected to the battery 13 through a cable, the housing 2 is provided with an electrical connection through hole for the cable to pass through, and the electrical connection through hole is respectively communicated with the upper cavity and the lower cavity, so as to facilitate the electrical connection between the battery 13 and the circuit board 8, and enable the hydrological telemetering terminal to perform water conservancy monitoring.
In this embodiment, install in the electricity connection through-hole and cross line rubber buffer 20, be favorable to the upper chamber body to form sealed after encapsulating.
In the hydrological telemetering terminal, each part is subjected to cavity-divided multilayer sealing in different modes, a higher-level sealing effect can be realized, waterproof testing is carried out at 50 ℃ and 90% humidity in a laboratory, waterproof testing is carried out for 3 m 12 h underwater, and no water enters an outdoor pool after waterproof testing is carried out for 1.5 m 48 h, so that the waterproof performance of IP68 is achieved, the instability caused by the existing single cavity and single sealing structure is compensated, the operation stability and safety of the instrument in severe and complex environments are improved, and the maintenance cost is reduced.
In conclusion, the hydrological telemetering terminal can adapt to complex use environments such as hot and humid conditions, water inflow and corrosion in fields, underground pipe networks and inspection wells, effectively protects internal electronic components and batteries from water inflow and corrosion damage, realizes IP68 waterproof performance, and ensures waterproof performance after batteries are replaced.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (10)
1. A hydrological telemetry terminal, comprising:
the battery pack comprises a shell (2), a circuit board (8) and a battery (13), wherein an upper cavity and a lower cavity are formed in the shell (2) in a separated mode, the circuit board (8) is installed in the upper cavity, the battery (13) is detachably installed in the lower cavity, and the battery (13) is electrically connected with the circuit board (8);
the cover body (6) and a first sealing structure (7), wherein the first sealing structure (7) is used for enabling the cover body (6) to be tightly matched with the shell body (2) and sealing the upper cavity;
the connector assembly is used for being connected with an external electrical element and enabling the external electrical element to be electrically connected with the circuit board (8), and the second sealing structure (23) is used for sealing a gap between the connector assembly and the connector mounting hole;
and the pressing base (17) is detachably connected with the shell (2) and seals the lower cavity.
2. The hydrological telemetry terminal of claim 1, wherein: the first sealing structure (7) can adhere the cover body (6) to the shell body (2).
3. The hydrological telemetry terminal of claim 1, wherein: the sealing device is characterized by further comprising a third sealing structure, wherein the third sealing structure is detachably connected with the shell (2) and the pressing base (17) respectively and used for pressing and fixing the pressing base (17) on the shell (2).
4. The hydrological telemetry terminal of claim 3, wherein: the third sealing structure comprises a sealing plug (14), a first sealing ring (15) and a second sealing ring (16), the sealing plug (14) is in clearance fit with the shell (2), the first sealing ring (15) is arranged between the sealing plug (14) and the shell (2) and used for forming radial sealing, and the second sealing ring (16) is arranged between the sealing plug (14), the shell (2) and the pressing base (17) and used for forming axial and radial combined sealing.
5. The hydrological telemetry terminal of claim 1, wherein: the novel vacuum bottle further comprises a fourth sealing structure (9), wherein the fourth sealing structure (9) is used for filling the upper cavity and is adhered to the cover body (6).
6. The hydrological telemetry terminal of claim 1, wherein: the battery box is characterized by further comprising a battery box (12) and a fifth sealing structure (11), wherein the battery box (12) is arranged in the lower cavity, the battery (13) is placed in the battery box (12), and the fifth sealing structure (11) is used for sealing the battery box (12) and fixing the battery (13).
7. The hydrological telemetry terminal of claim 1, wherein: the pressing device is characterized by further comprising a bracket (3), wherein fixing grooves are formed in the bracket (3) and used for fixing the shell (2) and the pressing base (17) together.
8. The hydrological telemetry terminal of claim 7, wherein: the bracket (3) is detachably connected with the pressing base (17).
9. The hydrological telemetry terminal of claim 1, wherein: still include fastener (21) and block structure, compress tightly all to be provided with connect the through-hole on base (17) and casing (2), above-mentioned connect the through-hole is worn to establish by fastener (21) and threaded connection with it, block structure is used for wearing to establish and compresses tightly the connect the through-hole on base (17) and seal it.
10. The hydrological telemetry terminal of claim 1, wherein: the circuit board (8) is electrically connected with the battery (13) through a cable, the shell (2) is provided with an electric connection through hole for the cable to pass through, and the electric connection through hole is respectively communicated with the upper cavity and the lower cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121301246.4U CN215064517U (en) | 2021-06-10 | 2021-06-10 | Hydrological telemetering terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121301246.4U CN215064517U (en) | 2021-06-10 | 2021-06-10 | Hydrological telemetering terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215064517U true CN215064517U (en) | 2021-12-07 |
Family
ID=79205396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121301246.4U Active CN215064517U (en) | 2021-06-10 | 2021-06-10 | Hydrological telemetering terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215064517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117589244A (en) * | 2024-01-18 | 2024-02-23 | 江苏水科尚禹能源技术研究院有限公司 | Waterproof type telemetry terminal of easy maintenance |
-
2021
- 2021-06-10 CN CN202121301246.4U patent/CN215064517U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117589244A (en) * | 2024-01-18 | 2024-02-23 | 江苏水科尚禹能源技术研究院有限公司 | Waterproof type telemetry terminal of easy maintenance |
| CN117589244B (en) * | 2024-01-18 | 2024-04-02 | 江苏水科尚禹能源技术研究院有限公司 | Waterproof type telemetry terminal of easy maintenance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215064517U (en) | Hydrological telemetering terminal | |
| CN108492971A (en) | For the monitoring assembly of oil-immersed current transformer, installation method and monitoring system | |
| CN205909869U (en) | Intelligent environmental sensor | |
| CN2879182Y (en) | Detachable reference electrode | |
| CN209820525U (en) | Sulfur hexafluoride micro-water and density on-line monitoring device | |
| CN208299244U (en) | Feeder switch monitors terminal cabinet | |
| CN203881350U (en) | Moisture-proof data acquisition device | |
| KR20090004184U (en) | A terminal box of street lamp | |
| CN213121999U (en) | Cable sheath circulating current monitoring terminal | |
| CN111740497A (en) | Intelligent integrated optical fiber power supply equipment | |
| CN221078849U (en) | Sensor is put in partial shipment formula | |
| CN208043858U (en) | A kind of power plant high voltage station arrester on-line monitoring moisture-proof breathing equipment of device | |
| CN105606237A (en) | Temperature transmitter housing capable of heat dissipating and sealing | |
| CN216483615U (en) | Ceramic package pressure sensor with improved structure | |
| CN212163349U (en) | Mining carrier communication device convenient to installation | |
| CN217483577U (en) | Temperature and humidity sensor probe protection device and temperature and humidity sensor probe | |
| CN214310604U (en) | Distribution network leakage monitoring and warning device | |
| CN215727637U (en) | Explosion-proof shell of gas sensor and gas sensor | |
| CN218121921U (en) | Gas detection transmitter | |
| CN214853374U (en) | Intelligent irrigation controller | |
| CN203519033U (en) | Remote measuring apparatus for hydrology and water resource | |
| CN220829750U (en) | Fire detector for sealing box | |
| CN209804744U (en) | Waterproof structure of quick-release battery | |
| CN216284905U (en) | Power transmission and transformation equipment thing networking type SF6 little water measuring transducer | |
| CN219919465U (en) | Centralized protection device for illumination controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |