CN218735438U - Explosion-proof structure of hydrogen sensor - Google Patents
Explosion-proof structure of hydrogen sensor Download PDFInfo
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- CN218735438U CN218735438U CN202222673151.6U CN202222673151U CN218735438U CN 218735438 U CN218735438 U CN 218735438U CN 202222673151 U CN202222673151 U CN 202222673151U CN 218735438 U CN218735438 U CN 218735438U
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Abstract
The utility model discloses an explosion-proof structure of hydrogen sensor, which comprises an outer shell, shell internally mounted has hydrogen sensitive probe, the installation pipe has been inserted to the shell lower extreme, installation pipe fixed surface is connected with first protective tube, and first protective tube cup joints on the shell surface, fixed pipe is inserted to the shell upper end, fixed pipe fixed surface is connected with the second protection tube, through explosion-proof shell, first protective tube, the second protection tube improves the outside blast proof ability of hydrogen sensor, ensure shell non-deformable and damage, the solidity can be strong, realize keeping apart and explosion-proof effect, prevent that hydrogen sensitive probe from damaging, the second protection tube cup joints on shell upper portion, installation pipe is inside to be inserted and is detected the head, can extend the detection scope of hydrogen sensor through detecting the head, make the hydrogen sensor still can detect hydrogen under the condition of keeping away from hydrogen, have explosion-proof effect in advance, prolong the life of hydrogen sensor.
Description
Technical Field
The utility model relates to a hydrogen sensor technical field specifically is a hydrogen sensor's explosion-proof construction.
Background
The probe encapsulation and the whole encapsulation of the hydrogen sensor are designed in a separated mode, namely, the probe and the explosion-proof cap of the hydrogen sensor are welded on a circuit board after being assembled into a whole, and finally the probe and the explosion-proof cap are arranged in a shell of the hydrogen sensor and encapsulated in a pouring sealant or a sealing ring mode, but the hydrogen sensor cannot be hermetically encapsulated in use, so that the encapsulation mode is poor in reliability and stability after being used for a long time in different environments, and hydrogen is inflammable and explosive, so that the explosion-proof effect of the hydrogen sensor is small, and the hydrogen sensor has instability and unsafety in use.
In view of the above, research and improvement are made to solve the existing structure and defects, and an explosion-proof structure of a hydrogen sensor is provided to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an explosion-proof construction of hydrogen sensor to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme: an explosion-proof structure of a hydrogen sensor comprises a shell, wherein a hydrogen sensitive probe is arranged in the shell, a limiting ring is arranged on the inner wall of the shell and positioned at the lower part of the hydrogen sensitive probe, the limiting ring is fixedly connected with the shell of the limiting ring and can limit the hydrogen sensitive probe, a protection sheet is arranged on the lower surface of the limiting ring, a plurality of groups of holes are arranged on the surface of the protection sheet, the protection sheet is circular, and the holes are uniformly distributed at intervals, so that the circular shape is not easy to deform and has ventilation capacity;
the utility model discloses a detection device, including shell, installation pipe, fixed pipe surface fixedly connected with second protection tube, first protection tube cup joints on the shell surface, installation pipe and first protection tube integrated into one piece, fixed pipe has been inserted to the shell upper end, fixed pipe surface fixedly connected with second protection tube, the second protection tube cup joints on shell upper portion, fixed intraduct has inserted the detection head, the inside inspection hole that runs through the detection head that is equipped with of detection head, the detection head is shaft-like, the detection head surface is equipped with a plurality of groups auxiliary holes, and auxiliary hole and inspection hole intercommunication.
Further, be equipped with ventilative water proof membrane between spacing ring and the screening glass, ventilative water proof membrane surface edge is equipped with the abrasionproof and fills up, and spacing ring and screening glass press from both sides tight abrasionproof and fill up, can prevent that ventilative water proof membrane from damaging, the sealing washer has been cup jointed on installation pipe surface, the sealing washer is fixed between first protective tube and shell lower extreme, and the sealing washer is by first protective tube extrusion deformation, improves the leakproofness between first protective tube and the shell.
Furthermore, a circuit board is arranged at the upper end of the hydrogen sensitive probe, a connector electrically connected with the circuit board is arranged inside the second protection tube, a connecting wire is sleeved on the surface of the connector, and the connecting wire and the connector are connected in a plug-in mode, so that the connecting wire or the hydrogen sensor can be conveniently replaced.
Furthermore, the surface of the shell is provided with an explosion-proof shell, the first protection tube and the second protection tube clamp the explosion-proof shell, and the explosion-proof shell, the first protection tube and the second protection tube are all made of aluminum alloy, so that the protection strength of the shell is improved.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model encapsulates the two ends of the shell through the fixing pipe and the mounting pipe, so that the connection of the components in the shell is compact, the problem of component shaking is not easy to occur, and the stability and the shock resistance of the hydrogen sensor are improved;
the explosion-proof shell, the first protection tube and the second protection tube improve the explosion-proof capacity of the outside of the hydrogen sensor, ensure that the shell is not easy to deform and damage, have strong firmness, protect the hydrogen sensitive probe inside by the protection sheet, realize the isolation and explosion-proof functions and prevent the hydrogen sensitive probe from being damaged;
the detection range of the hydrogen sensor can be extended through the detection head, so that the hydrogen sensor can still detect hydrogen under the condition of being far away from the hydrogen, the pre-explosion-proof function is realized, and the damage to the hydrogen sensor is reduced;
first protection tube and second protection tube and shell sealing connection, hydrogen sensitive probe and shell inner wall sealing connection, ventilative water proof membrane and sealing washer improve hydrogen sensor's waterproof performance in the cooperation, prolong hydrogen sensor's life.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a schematic structural view of the assembly of the present invention.
In the figure: 1. a housing; 2. a circuit board; 3. fixing the tube; 4. a second protection tube; 5. a connector; 6. a connecting wire; 7. a hydrogen sensitive probe; 8. a limiting ring; 9. a breathable waterproof film; 10. a protective sheet; 11. a seal ring; 12. installing a pipe; 13. a first protective tube; 14. a detection head; 15. a detection hole; 16. an auxiliary hole; 17. an explosion-proof shell.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an explosion-proof structure of a hydrogen sensor comprises a shell 1, wherein a hydrogen sensitive probe 7 is installed inside the shell 1, the shell 1 supports the hydrogen sensitive probe 7 and protects the hydrogen sensitive probe 7, a limiting ring 8 is arranged on the inner wall of the shell 1 and positioned at the lower part of the hydrogen sensitive probe 7, a protection sheet 10 is arranged on the lower surface of the limiting ring 8, a plurality of groups of holes are formed in the surface of the protection sheet 10, and the limiting ring 8 plays a limiting role in limiting the protection sheet 10 and the hydrogen sensitive probe 7;
the lower end of the shell 1 is inserted with a mounting pipe 12, the surface of the mounting pipe 12 is fixedly connected with a first protection pipe 13, the first protection pipe 13 is sleeved on the surface of the shell 1, the first protection pipe 13 plays a role in protecting the lower end of the shell 1, the upper end of the shell 1 is inserted with a fixed pipe 3, the surface of the fixed pipe 3 is fixedly connected with a second protection pipe 4, the second protection pipe 4 is sleeved on the upper part of the shell 1, and the second protection pipe 4 plays a role in protecting the upper end of the shell 1;
a detection head 14 is inserted into the mounting tube 12, a detection hole 15 penetrating through the detection head 14 is formed in the detection head 14, and the detection head 14 is supported by stainless steel, so that the hardness and the rust-proof capability of the detection head 14 are improved;
a breathable waterproof membrane 9 is arranged between the limiting ring 8 and the protection sheet 10, the breathable waterproof membrane 9 can prevent water from entering the shell 1, short circuit of the circuit board 2 is avoided, an anti-abrasion pad is arranged on the edge of the surface of the breathable waterproof membrane 9, and the limiting ring 8 is prevented from damaging the breathable waterproof membrane 9;
the surface of the mounting pipe 12 is sleeved with a sealing ring 11, the sealing ring 11 is fixed between the first protection pipe 13 and the lower end of the shell 1, the sealing ring 11 is extruded and deformed by the shell 1 and the first protection pipe 13, and a gap between the first protection pipe 13 and the shell 1 is filled, so that the sealing property is improved;
the upper end of the hydrogen sensitive probe 7 is provided with a circuit board 2, the circuit board 2 supplies power to the hydrogen sensitive probe 7, a connector 5 electrically connected with the circuit board 2 is arranged inside the second protection tube 4, the surface of the connector 5 is sleeved with a connecting wire 6, and the hydrogen sensor is connected with external equipment by using the connecting wire 6;
an explosion-proof shell 17 is arranged on the surface of the shell 1, the first protection tube 13 and the second protection tube 4 clamp the explosion-proof shell 17, and the middle part of the shell 1 is protected by the explosion-proof shell 17;
the surface of the detection head 14 is provided with a plurality of groups of auxiliary holes 16, the auxiliary holes 16 are communicated with the detection holes 15, and the auxiliary holes 16 improve the circulation capacity of the detection holes 15, so that gas can enter the detection holes 15 more easily.
Specifically, when the hydrogen gas detector is used, the detection head 14 is fixed in an area needing to be detected, the detection head 14 is provided with a certain length and is convenient to fix in an inserting mode, hydrogen gas enters the shell 1 through the detection hole 15 and the auxiliary hole 16, the breathable waterproof membrane 9 can prevent water from continuing to enter the shell 1, and the hydrogen gas is detected by the hydrogen sensitive probe 7 after passing through the breathable waterproof membrane 9;
first protective tube 13, explosion-proof shell 17, second protective tube 4 play explosion-proof effect in shell 1 outside for shell 1 non-deformable has improved shell 1's hardness, ensures that hydrogen sensitive probe 7 and circuit board 2 are not fragile, detects the detection range that head 14 can extend the hydrogen sensor, makes the hydrogen sensor can keep away from hydrogen, avoids hydrogen explosion damage hydrogen sensor.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An explosion-proof structure of hydrogen sensor, includes shell (1), its characterized in that: shell (1) internally mounted has hydrogen sensitive probe (7), shell (1) inner wall just is located hydrogen sensitive probe (7) lower part and is equipped with spacing ring (8), spacing ring (8) lower surface is equipped with screening glass (10), and screening glass (10) surface is equipped with a plurality of group's holes, shell (1) lower extreme has inserted installation pipe (12), installation pipe (12) fixed surface is connected with first protection tube (13), and first protection tube (13) cup joint on shell (1) surface, shell (1) upper end has inserted fixed pipe (3), fixed pipe (3) fixed surface is connected with second protection tube (4), second protection tube (4) cup joint on shell (1) upper portion, installation pipe (12) inside has inserted and has detected head (14), it is equipped with inside inspection hole (15) that run through detection head (14) to detect head (14).
2. An explosion-proof structure of a hydrogen sensor according to claim 1, characterized in that: be equipped with ventilative waterproof membrane (9) between spacing ring (8) and screening glass (10), ventilative waterproof membrane (9) surface edge is equipped with the abrasionproof pad.
3. An explosion-proof structure of a hydrogen sensor according to claim 1, characterized in that: the surface of the mounting pipe (12) is sleeved with a sealing ring (11), and the sealing ring (11) is fixed between the first protection pipe (13) and the lower end of the shell (1).
4. An explosion-proof structure of a hydrogen sensor according to claim 1, characterized in that: hydrogen sensitive probe (7) upper end is equipped with circuit board (2), second protection tube (4) inside be equipped with circuit board (2) electric connection's connector (5), connecting wire (6) have been cup jointed on connector (5) surface.
5. An explosion-proof structure of a hydrogen sensor according to claim 1, characterized in that: the surface of the shell (1) is provided with an explosion-proof shell (17), and the first protection tube (13) and the second protection tube (4) clamp the explosion-proof shell (17).
6. An explosion-proof structure of a hydrogen sensor according to claim 1, characterized in that: the surface of the detection head (14) is provided with a plurality of groups of auxiliary holes (16), and the auxiliary holes (16) are communicated with the detection holes (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222673151.6U CN218735438U (en) | 2022-10-11 | 2022-10-11 | Explosion-proof structure of hydrogen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222673151.6U CN218735438U (en) | 2022-10-11 | 2022-10-11 | Explosion-proof structure of hydrogen sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218735438U true CN218735438U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222673151.6U Active CN218735438U (en) | 2022-10-11 | 2022-10-11 | Explosion-proof structure of hydrogen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218735438U (en) |
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2022
- 2022-10-11 CN CN202222673151.6U patent/CN218735438U/en active Active
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