CN220270482U - Pluggable detection device with safety limiting device - Google Patents
Pluggable detection device with safety limiting device Download PDFInfo
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- CN220270482U CN220270482U CN202321986333.7U CN202321986333U CN220270482U CN 220270482 U CN220270482 U CN 220270482U CN 202321986333 U CN202321986333 U CN 202321986333U CN 220270482 U CN220270482 U CN 220270482U
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- Prior art keywords
- gland
- limiting device
- safety
- pluggable
- probe rod
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- 238000001514 detection method Methods 0.000 title claims abstract description 82
- 230000000670 limiting effect Effects 0.000 title claims abstract description 55
- 210000004907 gland Anatomy 0.000 claims abstract description 71
- 239000000523 sample Substances 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims description 20
- 238000012856 packing Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to the technical field of detection devices, in particular to a pluggable detection device with a safety limiting device. The detection device comprises a protection tube, a sealing chamber, a valve, a safety limiting device, a probe rod and a gland; the sealing chamber is arranged at the upper end of the protective tube, and the valve is arranged in the middle of the protective tube; the gland is arranged at the upper end of the sealing chamber and comprises a gland hole; the detection head of the probe rod passes through the gland hole and the protective tube and then extends into the fluid pipeline; the safety limiting device is positioned on one side of the probe rod, which is close to the detection head, and the outer diameter of the safety limiting device is smaller than the inner diameter of the inlet at the lower part of the sealing chamber and larger than the inner diameter of the gland hole. Through setting up the safety stop device that uses with the gland cooperation, in probe rod extraction process, can make the detection head accurate be located between valve and the seal chamber, prevent that the detection head from being directly pulled out, lead to the medium leakage to endanger personnel's safety's problem.
Description
Technical Field
The utility model relates to the technical field of detection devices, in particular to a pluggable detection device with a safety limiting device.
Background
Fig. 1 provides a pluggable detection device, which has the characteristic of convenient online overhaul, and can be plugged online for overhaul, thereby being convenient for maintenance. However, the degree of the insertion and removal cannot be grasped. The normal operation process is as follows: 1. the gland screw is unscrewed (in a semi-unscrewed state, so that the tightness of the sealing filler can be achieved by pulling the pluggable detection device). 2. And drawing the detection head of the pluggable detection device between the upper part of the valve and the sealing chamber. 3. The valve is closed. 4. The whole pluggable detection device is pulled out for detection.
However, in the process of the operation step 2, the position of the detection head of the pluggable detection device cannot be accurately grasped every time, and the detection head of the pluggable detection device is directly pulled out of the sealing chamber due to the fact that the force is too strong or the like. The operation step 3 is not performed, so that the medium in the pipeline is leaked, and the safety of operators is endangered.
Disclosure of Invention
The utility model aims to provide a pluggable detection device with a safety limiting device, which can solve the problems in the prior art;
the utility model provides a pluggable detection device with a safety limiting device, which comprises a protection tube, a sealing chamber, a valve, a safety limiting device, a probe rod and a gland;
the sealing chamber is arranged at the upper end of the protective tube, and the valve is arranged in the middle of the protective tube;
the gland is arranged at the upper end of the sealing chamber and comprises a gland hole;
the detection head of the probe rod passes through the gland hole and the protective tube and then extends into the fluid pipeline;
the safety limiting device is positioned on one side of the probe rod, which is close to the detection head, and the outer diameter of the safety limiting device is smaller than the inner diameter of the inlet at the lower part of the sealing chamber and larger than the inner diameter of the gland hole.
Preferably, the detection head is provided with a limiting ring, or the outer diameter of the detection head is larger than the outer diameter of the probe rod,
the outer diameters of the limiting ring and the detection head are larger than the outer diameter of the probe rod, so that a step structure is formed between the detection head and the probe rod, and the step structure is a safety limiting device.
Preferably, the gland is divided into a plurality of gland units, and the plurality of gland units form an integral gland.
Preferably, the gland is divided into two semicircular gland units, the two semicircular annular gland units form a complete gland, and a central hole formed by surrounding the two semicircular annular gland units is a gland hole of the gland. The rear part of the probe rod is connected with the detection device, such as a three-valve group, a differential pressure transmission and other devices, so that the diameter of the rear part of the probe rod is larger, and the gland is designed into a semicircular structure, so that the complete gland can be conveniently assembled outside.
Preferably, a filler is arranged in the sealing chamber.
Preferably, the filler is a hard filler.
Preferably, the filler is soft filler, and a tablet is arranged at the bottom of the soft filler.
Preferably, the tablet is a plurality of tablet units, and the plurality of tablet units form a whole tablet.
Preferably, the tablet comprises two semicircular tablet units.
Preferably, the safety limiting device is a clamp spring arranged on the probe rod.
Preferably, the limiting ring is an annular structure or a clamping spring at the position where the detection head is arranged.
The beneficial effects are that:
through setting up the safety stop device that uses with the gland cooperation, in probe rod extraction process, can make the detection head accurate be located between valve and the seal chamber, prevent that the detection head from being directly pulled out, lead to the medium leakage to endanger personnel's safety's problem.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a conventional pluggable detection device according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a pluggable detection device of a safety limiting device according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a pluggable detection device of another safety limiting device according to an embodiment of the present utility model;
FIG. 4 is a front view of a semicircular capping unit according to an embodiment of the present utility model;
FIG. 5 is a top view of a semicircular capping unit provided in an embodiment of the present utility model;
FIG. 6 is a top view of a complete gland formed by two semicircular glands according to embodiments of the present utility model;
FIG. 7 is a front view of a seal chamber provided in accordance with an embodiment of the present utility model;
FIG. 8 is a top view of a seal chamber provided in accordance with an embodiment of the present utility model;
FIG. 9 is a schematic view of a semi-circular compression sheet according to an embodiment of the present utility model;
fig. 10 is a schematic view of a complete tablet structure formed by two semicircular tablets according to an embodiment of the present utility model.
Reference numerals illustrate:
1: protection tube, 2: sealing chamber, 3: valve, 4: probe rod, 5: gland, 6: fluid conduit, 7: detection head, 8: limit ring, 9: tabletting and 10: and (3) filling.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 2 to 10, the present embodiment provides a pluggable detection device with a safety limit device, which includes a protection tube 1, a sealing chamber 2, a valve 3, a safety limit device, a probe 4, and a gland 5.
The sealing chamber 2 is arranged at the upper end of the protective tube 1, and the valve 3 is arranged in the middle of the protective tube 1. A gland 5 is provided at the upper end of the seal chamber 2, the gland 5 comprising a gland 5 aperture.
The detection head 7 of the probe 4 passes through the hole of the gland 5 and the protective tube 1 and then extends into the fluid pipeline 6.
The safety limiting device is positioned on one side of the probe rod 4 close to the detection head 7, and the outer diameter of the safety limiting device is smaller than the diameter of the lower inlet of the sealing chamber 2 and larger than the inner diameter of the hole of the gland 5.
In this embodiment, through setting up the safety stop device that uses with the gland cooperation, in probe rod 4 extraction process, can make the detection head accurate be located between valve 3 and seal chamber 2, prevent that the detection head from being directly extracted, lead to the medium leakage to endanger personnel's safety's problem.
It should be noted that: the protective tube 1 can also extend into the fluid pipeline to protect the safety limiting device, but the detection part of the detection head needs to be left, so that the detection of the detection head can be ensured, and the medium pollution limiting step can be prevented.
In this embodiment, a structural form of the installation limiting device is provided, specifically as follows:
the detection head 7 is provided with a limiting ring 8, or the outer diameter of the detection head 7 is larger than the outer diameter of the probe rod 4, and the limiting ring 8 and the outer diameter of the detection head 7 are larger than the outer diameter of the probe rod 4, so that a step structure is formed between the detection head 7 and the probe rod 4, and the step structure is a safety limiting device.
Specifically, two structural forms of the installation limiting device are provided, one is that a limiting ring 8 is arranged at the position of the detection head 7, and the other is that the diameter of the detection head 7 is directly increased. But it is necessary to ensure that the stop collar 8, or the enlarged outer diameter of the test head 7, is slightly smaller than the lower inlet of the seal chamber 2 and larger than the inner diameter of the complete gland 5. Therefore, when the probe rod 4 is pulled out, the limit of the pulling-out position of the probe rod 4 can be realized by matching the gland 5.
Because the probe rod 4 is provided with other structures, the gland 5 is sleeved into the probe rod 4 from one end of the detection head 7 under normal conditions, and the gland 5 cannot be sleeved normally after the limiting ring 8 is arranged or the diameter of the detection head 7 is increased, the gland 5 is divided into a plurality of gland units, and the gland units form an integral gland 5.
Specifically, the gland 5 is divided into two semicircular gland units, and in this embodiment, two semicircular gland units are preferably used, and other divided gland 5 may be used according to actual needs.
The complete gland 5 is divided into two parts, so that when the detection head is inserted between the upper part of the valve 3 and the sealing chamber 2, the detection head can be recombined into a complete gland 5 on the external probe rod 4, and the function of compressing sealing filler is completed. And the inner diameter of the device is smaller than the outer diameter of the limiting ring 8, so that the device and the step of the limiting ring 8 and the semicircular pressing piece 9 jointly complete the limiting effect on the detection head.
Further, a packing 10 is provided in the sealing chamber 2. In the present embodiment, the filler may be a hard filler or a soft filler, and the bottom of the soft filler is provided with the pressing piece 9.
The tablet 9 is a plurality of tablet units, and the plurality of tablet units form an integral tablet 9. The tablet 9 comprises two semicircular tablet units.
Specifically, when the sealing filler is softer, two semicircular pressing sheets 9 can be used to form a complete pressing sheet 9, the inner diameter of the pressing sheet 9 is slightly larger than the diameter of the probe rod 4, and the outer diameter is slightly larger than the inner diameter of the inlet at the lower part of the sealing chamber 2. The sealing filler is pressed at the lower end of the sealing filler, so that the sealing filler is prevented from being extruded, and the pluggable detection device is prevented from being pulled out of the sealing chamber 2 by mistake. When the sealing filler is harder, the tablet 9 may not be provided.
In summary, it is shown that: when the pluggable detection device is pulled out, the detection head is just limited between the upper part of the valve 3 and the sealing chamber 2 in the pulling-out process because the outer diameter of the limiting ring 8 is larger than the inner diameters of the pressing sheet 9 and the pressing cover 5. At the moment, the valve 3 is closed, the gland 5 is removed, and the pluggable detection device, the packing pressing sheet 9 and the packing can be taken out together for maintenance. The steps are opposite during installation.
In this embodiment, another structural form of the installation limiting device is also provided, specifically as follows:
the safety limiting device is a clamp spring arranged on the probe rod 4. Because the clamp spring is detachably connected with the probe rod 4, the diameter of the probe rod 4 is not affected, and the gland 5 can be normally sleeved on the probe rod 4. Therefore, when the installation limiting device is a snap spring, the semicircular gland 5 can be omitted, and the conventional gland 5 can be used. At the moment, the gland 5 and the detection head can be overhauled separately by taking out the clamp spring only after the detection head is pulled out. Or the sealing chamber 2 (which can be taken off from the upper part of the valve 3 at the screw opening and the flange) and the detection head are taken off together, and the sealing chamber 2 is detached from the detection head for overhauling after the snap spring is taken off.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model 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 scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (10)
1. The pluggable detection device with the safety limiting device is characterized by comprising a protection tube, a sealing chamber, a valve, the safety limiting device, a probe rod and a gland;
the sealing chamber is arranged at the upper end of the protective tube, and the valve is arranged in the middle of the protective tube;
the gland is arranged at the upper end of the sealing chamber and comprises a gland hole;
the detection head of the probe rod passes through the gland hole and the protective tube and then extends into the fluid pipeline;
the safety limiting device is positioned on one side of the probe rod, which is close to the detection head, and the outer diameter of the safety limiting device is smaller than the inner diameter of the inlet at the lower part of the sealing chamber and larger than the inner diameter of the gland hole.
2. The pluggable detection device with the safety limiting device according to claim 1, wherein a limiting ring is arranged at the detection head, or the outer diameter of the detection head is larger than the outer diameter of the probe rod,
the outer diameters of the limiting ring and the detection head are larger than the outer diameter of the probe rod, so that a step structure is formed between the detection head and the probe rod, and the step structure is a safety limiting device.
3. The pluggable detection device with safety limiting device of claim 2, wherein the gland is divided into a plurality of gland units, and the plurality of gland units form an integral gland.
4. The pluggable detection device with safety limiting device according to claim 3, wherein the gland is divided into two semicircular gland units, the two semicircular annular gland units form a complete gland, and a central hole formed around the two semicircular annular gland units is a gland hole of the gland.
5. The pluggable detection device with a safety limiting device of claim 2, wherein a filler is disposed within the sealed chamber.
6. The pluggable detection device with a safety stop device of claim 5, wherein the filler is a hard filler.
7. The pluggable detection device with a safety limiting device according to claim 5, wherein the packing is soft packing, and a pressing sheet is arranged at the bottom of the soft packing.
8. The pluggable detection device with a safety limiting device of claim 7, wherein the tablet is a plurality of tablet units, the plurality of tablet units forming an integral tablet.
9. The pluggable detection device with safety limiting device of claim 8, wherein the compression sheet includes two semicircular compression sheet units.
10. The pluggable detection device with the safety limiting device according to claim 2, wherein the limiting ring is an annular structure or a clamping spring at the position where the detection head is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321986333.7U CN220270482U (en) | 2023-07-26 | 2023-07-26 | Pluggable detection device with safety limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321986333.7U CN220270482U (en) | 2023-07-26 | 2023-07-26 | Pluggable detection device with safety limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220270482U true CN220270482U (en) | 2023-12-29 |
Family
ID=89298155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321986333.7U Active CN220270482U (en) | 2023-07-26 | 2023-07-26 | Pluggable detection device with safety limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220270482U (en) |
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2023
- 2023-07-26 CN CN202321986333.7U patent/CN220270482U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240407 Address after: No. 813 Wenchang Middle Road, Jiyuan City, Henan Province, China, No. 2 Road Patentee after: Zhang Jun Country or region after: China Address before: 454650 Former Education Commission Courtyard 304, Zhonglou Street, Jiyuan City, Henan Province Patentee before: Jiyuan Huazhiwei Measurement and Control Technology Co.,Ltd. Country or region before: China |