CN214467915U - Miniature pressure alarm for gas pipeline - Google Patents
Miniature pressure alarm for gas pipeline Download PDFInfo
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- CN214467915U CN214467915U CN202120338870.5U CN202120338870U CN214467915U CN 214467915 U CN214467915 U CN 214467915U CN 202120338870 U CN202120338870 U CN 202120338870U CN 214467915 U CN214467915 U CN 214467915U
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- gas pipeline
- pressure alarm
- threaded nozzle
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Abstract
The utility model discloses a miniature pressure alarm for a gas pipeline, which comprises a shell, wherein an elastic membrane is horizontally arranged in the middle of the shell, an air inlet pipe is arranged at the bottom of the shell in a run-through manner, a conductive balance disc is horizontally arranged at the upper part of the elastic membrane, the bottom of the balance disc is fixedly connected with the elastic membrane, a lead is vertically arranged on the balance disc, the lead runs through the upper wall of the shell and is in sliding connection with the shell, and a contact is arranged at one end of the lead, which is positioned outside the shell; the upper part of the shell is provided with a high-low overvoltage contact and a low-high undervoltage contact which are respectively arranged right above and right below the contact. The utility model discloses simple structure is small and exquisite, portable and use, uses and does not receive influences such as environment space weather.
Description
The technical field is as follows:
the utility model relates to a pressure alarm especially relates to a miniature pressure alarm is used to gas pipeline.
Background art:
in the operations of gas pipeline equipment installation, maintenance, emergency rescue and the like, the guarantee that the pressure of a gas pipeline is stable within a specified range is a very important link. Because the pressure monitoring work is dull and monotonous, most of the work is at night and the time is long, pressure monitoring personnel are easy to make a break and doze off, the pressure is over-limit and cannot be found in time, if the situation occurs, the situation is very dangerous, especially, when the construction is on fire, the pressure is too low, tempering and explosion can be generated, and when the pressure is too high, the plugging ball bladder can be blown through, so that the danger of suffocation can be caused to the working personnel in the working pit.
The utility model has the following contents:
in order to solve the technical problem, an object of the utility model is to provide a miniature pressure alarm is used to gas pipeline.
The utility model discloses by following technical scheme implement: a miniature pressure alarm for a gas pipeline comprises a shell, wherein an elastic membrane is horizontally arranged in the middle of the shell, an air inlet pipe is arranged at the bottom of the shell in a penetrating way,
a conductive balance disc is horizontally arranged at the upper part of the elastic membrane, the bottom of the balance disc is fixedly connected with the elastic membrane, a lead is vertically arranged on the balance disc, the lead penetrates through the upper wall of the shell and is in sliding connection with the shell, and a contact is arranged at one end of the lead, which is positioned outside the shell; and the upper part of the shell is provided with a high-low overvoltage contact and a low-high undervoltage contact which are respectively arranged right above and right below the contact.
Furthermore, a threaded nozzle is arranged at the top of the shell in a penetrating manner, an adjusting bolt is arranged in the threaded nozzle, and the adjusting bolt is in threaded connection with the threaded nozzle; and a spring is arranged between the adjusting bolt and the balance disc, and two ends of the spring are respectively and fixedly connected with the lower part of the adjusting bolt and the upper part of the balance disc.
Furthermore, the shell comprises an upper shell and a lower shell which are buckled, and the edge of the elastic leather diaphragm is arranged in the buckling seam of the upper shell and the lower shell and is pressed by the upper shell and the lower shell.
Further, a sleeve is vertically arranged at the center of the inner portion of the lower shell, a guide rod is arranged in the sleeve in a sliding mode, and the top end of the guide rod is fixedly connected with the elastic membrane.
Furthermore, the air inlet pipe is communicated with the lower shell in a sealing mode, and an air inlet valve is arranged on the air inlet pipe.
Furthermore, the threaded nozzle is fixedly arranged on the upper portion of the upper shell, the threaded nozzle is an insulating threaded nozzle, and the overpressure contact and the under-voltage contact are both arranged on the outer wall of the threaded nozzle.
Furthermore, a sliding groove is vertically formed in the outer wall of the threaded nozzle, a vertical clamping groove is formed in one side, close to the inner cavity of the threaded nozzle, of the sliding groove, two clamping blocks are arranged in the clamping groove, each clamping block is horizontally provided with a screw rod, one end of each screw rod is in threaded connection with the corresponding clamping block, the other end of each screw rod extends out of the corresponding sliding groove, and the two upper and lower screw rods are respectively provided with the overpressure contact and the underpressure contact.
The utility model has the advantages that: the utility model discloses simple structure is small and exquisite, portable and use, uses and does not receive influences such as environment space weather. When the gas-fired boiler is used, the gas inlet pipe is connected with a gas pipe, the gas inlet valve is opened, the adjusting bolt is connected with one pole of the power supply, the overpressure contact and the underpressure contact are connected with the other pole of the power supply, the position of the spring is adjusted by adjusting the depth of the adjusting bolt in the threaded nozzle, and then the underpressure alarm value and the overpressure alarm value are adjusted; when the pressure in the gas pipe changes, the gas volume in the inner cavity of the lower shell changes, the elastic membrane correspondingly swells or descends, the balance disc and the lead correspondingly ascend and descend, and when the contact is in contact with the overpressure contact or the undervoltage contact, the power supply is switched on, and then corresponding alarm can be given.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a miniature pressure alarm for a gas pipeline according to the present invention;
FIG. 2 is a schematic structural view of another miniature pressure alarm for a gas pipeline according to the present invention;
FIG. 3 is a schematic view of the nipple of FIG. 1;
FIG. 4 is a top view of the connection of the nipple and the screw of FIG. 1.
In the figure: the device comprises an upper shell 1, a lower shell 2, an elastic membrane 3, an air inlet pipe 4, an air inlet valve 5, a threaded nozzle 6, an adjusting bolt 7, a spring 8, a balance disc 9, a lead 10, a contact 11, an overpressure contact 12, an underpressure contact 13, a sleeve 14, a guide rod 15, a sliding groove 16, a clamping groove 17, a clamping block 18 and a screw 19.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 efforts belong to the protection scope of the present invention.
As shown in fig. 1-4, the miniature pressure alarm for the gas pipeline comprises an upper shell 1 and a lower shell 2 which are mutually buckled, wherein an elastic membrane 3 is horizontally arranged in the middle of the upper shell 1 and the lower shell 2, and the edge of the elastic membrane 3 is arranged in the buckling seam of the upper shell 1 and the lower shell 2 and is tightly pressed by the upper shell 1 and the lower shell 2; an air inlet pipe 4 is provided through the bottom of the lower case 2, and an air inlet valve 5 is provided in the air inlet pipe 4.
An insulated threaded nozzle 6 is arranged at the top of the upper shell 1 in a penetrating manner, an adjusting bolt 7 is arranged in the threaded nozzle 6, and the adjusting bolt 7 is in threaded connection with the threaded nozzle 6;
a conductive balance disc 9 is horizontally arranged at the upper part of the elastic membrane 3, the bottom of the balance disc 9 is fixedly connected with the elastic membrane 3, a lead 10 is vertically arranged on the balance disc 9, the lead 10 penetrates through the upper wall of the upper shell 1 and is in sliding connection with the upper shell 1, and a contact 11 is arranged at one end, positioned outside the upper shell 1, of the lead 10; the outer wall of the threaded nozzle 6 is provided with a high-low overpressure contact 12 and an undervoltage contact 13, and the overpressure contact 12 and the undervoltage contact 13 are respectively arranged right above and right below the contact 11;
specifically, the outer wall of the threaded nozzle 6 is vertically provided with a sliding groove 16, one side of the sliding groove 16, which is close to the inner cavity of the threaded nozzle 6, is provided with a vertical clamping groove 17, two clamping blocks 18 are arranged in the clamping groove 17, each clamping block 18 is horizontally provided with a screw rod 19, one end of each screw rod 19 is in threaded connection with the corresponding clamping block 18, the other ends of the two screw rods 19 extend out of the sliding groove 16, and the upper screw rod 19 and the lower screw rod 19 are respectively provided with an overpressure contact 12 and an underpressure contact 13. When the overvoltage and undervoltage protection device is used, the screw rod 19 is unscrewed, the position of the clamping block 18 in the clamping groove 17 is adjusted, the height of the screw rod 19 is further adjusted, the screw rod 19 is screwed after the adjustment is completed, the clamping block 18 is tightly clamped with the clamping groove 17, and the adjustment of the positions of the overvoltage contact 12 and/or the undervoltage contact 13 (namely the adjustment of an overvoltage alarm value and an undervoltage alarm value) is realized.
A spring 8 is arranged between the adjusting bolt 7 and the balance disc 9, and two ends of the spring 8 are respectively and fixedly connected with the lower part of the adjusting bolt 7 and the upper part of the balance disc 9.
A sleeve 14 is vertically arranged at the center of the interior of the lower shell 2, a guide rod 15 is arranged in the sleeve 14 in a sliding mode, and the top end of the guide rod 15 is fixedly connected with the elastic membrane 3.
The working principle is as follows:
when the gas inlet valve is used, the gas inlet pipe 4 is connected with a gas pipe, the gas inlet valve 5 is opened, the adjusting bolt 7 is connected with one pole of a power supply, the overpressure contact 12 and the under-pressure contact 13 are connected with the other pole of the power supply, the position of the spring 8 is adjusted by adjusting the depth of the adjusting bolt 7 in the threaded nozzle 6, and the height of the adjusting screw 19 is matched, so that the under-pressure alarm value and the overpressure alarm value are adjusted;
when the pressure in the gas pipe changes, the gas volume in the inner cavity of the lower shell 2 changes, the elastic membrane 3 correspondingly swells or descends, the balance disc 9 and the lead 10 correspondingly ascend and descend, and when the contact 11 is in contact with the overpressure contact 12 or the undervoltage contact 13, the power supply is switched on to give an alarm correspondingly.
In the embodiment, the sleeve 14 and the guide rod 15 are arranged at the lower part of the elastic membrane 3, so that the elastic membrane 3 and the balance disc 9 are ensured to vertically lift.
The alarm when the contact 11 is in contact with the overvoltage contact 12 or the undervoltage contact 13 is performed in a conventional manner, which is not a protection point of the scheme and is not further described in this embodiment.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A miniature pressure alarm for a gas pipeline is characterized by comprising a shell, wherein an elastic membrane is horizontally arranged in the middle of the shell, an air inlet pipe is arranged at the bottom of the shell in a penetrating way,
a conductive balance disc is horizontally arranged at the upper part of the elastic membrane, the bottom of the balance disc is fixedly connected with the elastic membrane, a lead is vertically arranged on the balance disc, the lead penetrates through the upper wall of the shell and is in sliding connection with the shell, and a contact is arranged at one end of the lead, which is positioned outside the shell; and the upper part of the shell is provided with a high-low overvoltage contact and a low-high undervoltage contact which are respectively arranged right above and right below the contact.
2. The miniature pressure alarm for the gas pipeline according to claim 1, wherein a threaded nozzle is arranged at the top of the shell in a penetrating manner, an adjusting bolt is arranged in the threaded nozzle, and the adjusting bolt is in threaded connection with the threaded nozzle; and a spring is arranged between the adjusting bolt and the balance disc, and two ends of the spring are respectively and fixedly connected with the lower part of the adjusting bolt and the upper part of the balance disc.
3. The miniature pressure alarm device for the gas pipeline according to claim 2, wherein the housing comprises an upper housing and a lower housing which are arranged in a buckling manner, and the edge of the elastic membrane is arranged in the buckling seam of the upper housing and the lower housing and is pressed by the upper housing and the lower housing.
4. The miniature pressure alarm for the gas pipeline as claimed in claim 3, wherein a sleeve is vertically arranged at the center inside the lower shell, a guide rod is slidably arranged in the sleeve, and the top end of the guide rod is fixedly connected with the elastic membrane.
5. The miniature pressure alarm for the gas pipeline as claimed in claim 3, wherein the gas inlet pipe is hermetically communicated with the lower housing, and an air inlet valve is arranged on the gas inlet pipe.
6. The miniature pressure alarm for the gas pipeline as claimed in claim 3, wherein the threaded nozzle is fixedly arranged at the upper part of the upper shell, the threaded nozzle is an insulating threaded nozzle, and the overpressure contact and the underpressure contact are both arranged on the outer wall of the threaded nozzle.
7. The miniature pressure alarm for the gas pipeline according to claim 6, wherein a chute is vertically formed on the outer wall of the threaded nozzle, a clamping groove is vertically formed on one side of the chute, which is close to the inner cavity of the threaded nozzle, two clamping blocks are arranged in the clamping groove, a screw is horizontally arranged on each clamping block, one end of each screw is in threaded connection with the clamping block, the other end of each screw extends out of the chute, and the two screws above and below are respectively provided with the overpressure contact and the underpressure contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120338870.5U CN214467915U (en) | 2021-02-05 | 2021-02-05 | Miniature pressure alarm for gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120338870.5U CN214467915U (en) | 2021-02-05 | 2021-02-05 | Miniature pressure alarm for gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214467915U true CN214467915U (en) | 2021-10-22 |
Family
ID=78136576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120338870.5U Active CN214467915U (en) | 2021-02-05 | 2021-02-05 | Miniature pressure alarm for gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214467915U (en) |
-
2021
- 2021-02-05 CN CN202120338870.5U patent/CN214467915U/en active Active
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