CN210774910U - Positioning and fastening device of sulfur hexafluoride sampling detection equipment - Google Patents
Positioning and fastening device of sulfur hexafluoride sampling detection equipment Download PDFInfo
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- CN210774910U CN210774910U CN201921683397.3U CN201921683397U CN210774910U CN 210774910 U CN210774910 U CN 210774910U CN 201921683397 U CN201921683397 U CN 201921683397U CN 210774910 U CN210774910 U CN 210774910U
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- check valve
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- hand wheel
- sulfur hexafluoride
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Abstract
The utility model discloses a sulfur hexafluoride sampling check out test set's location fastener, it includes mount, air pipe joint, check valve male joint and the hand wheel of screwing. The front fixing plate of the fixing frame is of a U-shaped groove structure and used for clamping the head of a flange plate of the check valve female connector, and then the check valve male connector is pushed to be installed into the check valve female connector under the action of screwing the hand wheel. In this device, check valve box connects, screws hand wheel and check valve male joint three's axle center and is in on the same straight line, need not many times location during the installation, more need not many people and just can fasten, and whole process only needs one can operate. The problem of traditional detection connect need the construction bolt or use other instruments to fasten in the joint department is solved, manpower and materials have been saved. Especially when the work is high above the ground, the personnel are better to borrow the power, have the strength to ensure the personal safety of operation personnel.
Description
Technical Field
The utility model relates to a power grid equipment maintenance field especially relates to a sulfur hexafluoride sampling check out test set's location fastener.
Background
Sulfur hexafluoride is a new generation of ultra-high voltage insulating dielectric material superior to that between air and oil. It is widely used in electronic and electrical devices because of its good insulating and arc extinguishing properties. Such as circuit breakers, high voltage transformers, gas-enclosed combined capacitors, high voltage transmission lines, transformers and high voltage switches, large capacity transformers, high voltage cables and insulating materials for gases, etc.
Sulfur hexafluoride gas is itself non-toxic, but produces toxic decomposition products as a result of prolonged exposure to high temperature electrical arcs. The decomposition products having too high concentration may leak into the air to cause serious damage to the human body or the environment. Therefore, sulfur hexafluoride gas charging equipment is used for sampling and checking the concentration of sulfur hexafluoride decomposition products in the electrical equipment at intervals. At present, during sampling inspection, the steps of fixedly mounting the connector of the sampling inspection device and the connector of the electrical equipment are as follows: 1. aligning a check valve male connector with a check valve female connector of the electrical device; 2. pushing the check valve male joint to enable the check valve male joint to be in close contact with a flange plate of the check valve female joint; 3. and the flange plate is connected and fastened with the check valve male joint and the check valve female joint by using bolts. The above steps can cause the following problems in the actual operation process: firstly, when a male joint of a check valve is installed on a female joint at a high place or in a narrow environment, sulfur hexafluoride gas leaks due to the fact that a valve nozzle of the female joint of the check valve is touched by mistake because accurate positioning cannot be achieved; secondly, the force for pushing the male joint of the check valve is large, and particularly, a proper acting point is difficult to find during high-altitude operation, so that the installation difficulty is large; thirdly, since the bolts are used for fastening, the worker cannot release his hands after the alignment of the joints, otherwise the joint alignment needs to be performed again. At this moment, another person is needed to fasten the bolt, and under the high-altitude or narrow working environment, the personal safety of the working personnel can not be ensured at all, and meanwhile, the installation operation is not facilitated.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the utility model provides a positioning and fastening device of sulfur hexafluoride sampling detection equipment to solve among the prior art when using sulfur hexafluoride to aerify primary equipment and carry out the sampling inspection to electrical equipment, especially when the operation is carried out at the eminence, the non return valve male joint can't accurate location and lead to non return valve male joint mistake to touch the valve mouth of non return valve female joint, thereby lead to sulfur hexafluoride gas leakage and eminence installation operation to need many people to cooperate and can accomplish the problem of installation.
The technical scheme of the utility model is that:
a positioning and fastening device of sulfur hexafluoride sampling detection equipment comprises a check valve female joint arranged at the end of electrical equipment and a check valve male joint installed in a butt joint mode with the check valve female joint, wherein the connecting portion of the check valve female joint and the check valve male joint is of a flange plate structure, the check valve female joint is clamped on a fixing frame, and a flange plate of the check valve female joint is located in the fixing frame; a check valve male joint is arranged in the fixing frame; the check valve male joint is connected with a screwing hand wheel; the screwing hand wheel is in threaded connection with the fixing frame; the axes of the check valve female joint, the screwing hand wheel and the check valve male joint are positioned on the same straight line.
The fixing frame comprises a front fixing plate, side fixing plates and a bottom supporting plate (and a rear fixing plate, wherein the front fixing plate is of a U-shaped groove structure, a groove is clamped on a check valve female joint, a flange plate of the check valve female joint is positioned on the inner side of the front fixing plate, the rear fixing plate is installed on the position opposite to the front fixing plate, the side fixing plates and the bottom supporting plate are fixedly installed at the bottom and the side face of the front fixing plate and the side face of the rear fixing plate respectively, a sliding groove is formed in the inner side of the bottom supporting plate, a check valve male joint is installed on the sliding groove, a threaded hole is formed in the rear fixing plate.
The width of the groove of the front fixing plate is larger than the outer diameter of the joint of the check valve female joint and the equipment and smaller than the outer diameter of a flange plate of the check valve female joint.
A counter bore is arranged at the end of a screw rod of the screwing hand wheel, and a bearing is arranged in the counter bore; a check valve male joint is arranged in the bearing.
The check valve male joint is provided with a gas pipe joint; the air pipe joint is communicated with an internal pipeline of the check valve male joint; the air outlet of the air pipe joint faces to the gap between the side fixing plate and the bottom supporting plate or between the two side fixing plates.
An anti-unscrewing device is arranged at the end of the screw of the screwing hand wheel.
A gas taking method for a positioning and fastening device of sulfur hexafluoride sampling detection equipment comprises the following steps:
step 4, rotating the screwing hand wheel to push the check valve male connector to move, so that the check valve female connector is in butt joint with the check valve male connector; further opening the check valve female joint, and allowing gas to flow into the monitoring equipment along the check valve male joint and the gas pipe joint;
and 5, after sampling is finished, rotating the screwing hand wheel outwards to enable the check valve male connector to be separated from the check valve female connector, and then taking the fixing frame out of the check valve female connector.
The utility model discloses beneficial effect:
the utility model discloses a sulfur hexafluoride sampling check out test set's location fastener uses the mount to be in same straight line with check valve female joint, check valve male joint and the axle center of the first round of screwing, can guarantee at installation check valve male joint, especially when the eminence operation, and check valve male joint can pinpoint, can not cause the mistake to touch the valve cock in the check valve female joint and lead to sulfur hexafluoride gas leakage. The flange plate of the check valve female joint is clamped by using the fixing frame, and then the actions of positioning, fastening and air releasing of the check valve male joint and the check valve female joint are realized by rotating and screwing the hand wheel. The device is simple in structure, can be operated by only one person in the whole process, solves the problem that the traditional detection joint needs to be provided with a mounting bolt or other tools to fasten the joint, and saves manpower and material resources. Especially when the work is high above the ground, the personnel are better to borrow the power, have the strength to ensure the personal safety of operation personnel.
Drawings
Fig. 1 is a schematic view of the installation structure of the present invention;
FIG. 2 is a schematic view of the fixing frame of the present invention;
FIG. 3 is a cross-sectional view of the male connector of the check valve of the present invention;
fig. 4 is a schematic structural view of a screwing hand wheel of the present invention;
fig. 5 is a schematic view of the bottom support plate structure of the present invention.
Detailed Description
As shown in fig. 1, a positioning and fastening device of sulfur hexafluoride sampling detection equipment comprises a check valve female connector 1 fixing frame 2, an air pipe connector 3, a check valve male connector 4 and a screwing hand wheel 5; the check valve female joint (1) is installed on the end of the electrical equipment, and the check valve male joint (4) and the check valve female joint (1) are installed in a nested mode. The connecting part of the check valve female joint (1) and the check valve male joint (4) is of a flange structure and is used for being connected with the check valve male joint; the fixing frame 2 is clamped on a pipeline at the joint of the check valve female joint 1 and the electrical equipment, and a flange plate of the check valve female joint 1 is positioned in the fixing frame 2;
a check valve male joint 4 is arranged in the fixed frame 2; the right side of the check valve male joint 4 is connected with a screwing hand wheel 5, and the screwing hand wheel 5 is in threaded connection with the fixed frame 2; the axes of the check valve female joint 1, the screwing hand wheel 5 and the check valve male joint 4 are on the same straight line. The end of the check valve male joint 4 can be accurately installed in the check valve female joint 1 under the action of screwing the hand wheel 5, and the valve nozzle in the check valve female joint 1 cannot be touched by mistake due to installation deviation between the check valve male joint 4 and the check valve female joint 1 during operation, so that sulfur hexafluoride gas is prevented from leaking.
As shown in fig. 2, the fixing frame 2 includes a front fixing plate 21, a side fixing plate 22, a bottom supporting plate 23 and a rear fixing plate 24; the front fixing plate 21 is of a U-shaped groove opening structure, a groove is used for being clamped on the check valve female joint 1, and a flange plate of the check valve female joint 1 is positioned on the inner side of the front fixing plate 21; the side fixing plates 22 are fixedly arranged on the side surfaces of the front fixing plate 21 and the rear fixing plate 24; the bottom support plate 23 is fixedly installed at the bottom of the front fixing plate 21 and the rear fixing plate 24; the rear fixing plate 24 is provided with a threaded hole, and the rear fixing plate 24 is in threaded connection with the screwing hand wheel 5. The fixed frame 2 ensures that the axes of the check valve female joint 1, the check valve male joint 4 and the screwing hand wheel 5 after installation are in the same straight line during processing so as to ensure the accuracy of installation and positioning. Meanwhile, the screwing hand wheel is used to save more labor in the whole installation process, and the hand wheel is suitable for being operated in high-altitude operation or narrow environment, so that manpower and material resources are saved.
As shown in fig. 5 and 3, the bottom support plate 23 is provided with an embedded sliding groove, the bottom of the flange of the check valve male connector 4 is welded with a sliding block structure 41 with the same shape as the sliding groove of the bottom support plate 23, and the sliding block structure 41 is installed on the sliding groove of the bottom support plate 23 to ensure that the check valve male connector 4 can move along the axial direction of the bottom support plate 23, and also ensure that the check valve male connector 4 cannot rotate along with the hand wheel 5 when the hand wheel 5 is screwed in a rotating manner.
The width of the groove on the front fixing plate 21 is larger than the outer diameter of the joint of the check valve female joint 1 and the equipment and smaller than the outer diameter of the flange plate of the check valve female joint 1, so that the front fixing plate 21 can clamp the check valve female joint 1.
As shown in fig. 4, a counter bore is arranged at the end of the screw of the screwing hand wheel 5, and a bearing 51 is arranged in the counter bore; one side end of the check valve male joint 4 is installed in the bearing 51, and when the screwing hand wheel 6 rotates and pushes the check valve male joint 4 to move, radial stress between the check valve male joint 4 and the screwing hand wheel 5 can be reduced, so that the whole installation process is more labor-saving, and the installation speed is higher.
As shown in fig. 3, the check valve male connector 4 is provided with a gas pipe connector 3; the air pipe joint 3 is communicated with an internal pipeline of the check valve male joint 4; the air outlet of the air pipe joint 3 is directed to the gap between the side fixing plate 22 and the bottom supporting plate 23 or the two side fixing plates 22 to prevent the air pipe joint 3 from interfering when connecting the hose of the detection apparatus.
As shown in fig. 4, an anti-unscrewing device 52 is disposed at the end of the screw of the screwing hand wheel 5, and the anti-unscrewing device 52 may be fastened by using a nut, or a protrusion may be added to the head by using a spot welding method, so as to prevent the screwing hand wheel 5 from being unscrewed from the fixing frame 2 due to an erroneous operation during the operation.
A gas taking method for a positioning and fastening device of sulfur hexafluoride sampling detection equipment comprises the following steps:
step 4, rotating the screwing hand wheel 5 to push the check valve male connector 4 to move, so that the check valve female connector 1 is in butt joint with the check valve male connector 4; further, the check valve female joint 1 is opened, and gas flows into the monitoring equipment along the check valve male joint 4 and the gas pipe joint 3;
and 5, after sampling is finished, rotating the screwing hand wheel 5 outwards to enable the check valve male connector 4 to be separated from the check valve female connector 1, and taking the fixing frame 2 out of the check valve female connector 1.
Claims (6)
1. The utility model provides a sulfur hexafluoride sampling check out test set's location fastener, it is including installing check valve female joint (1) at electrical equipment end and with check valve male joint (4) of check valve female joint (1) butt joint installation, the connecting portion of check valve female joint (1) and check valve male joint (4) are ring flange structure, its characterized in that: the check valve female joint (1) is clamped on the fixing frame (2), and a flange plate of the check valve female joint (1) is positioned in the fixing frame (2); a check valve male joint (4) is arranged in the fixed frame (2); the check valve male joint (4) is connected with a screwing hand wheel (5); the screwing hand wheel (5) is in threaded connection with the fixing frame (2); the axes of the check valve female joint (1), the screwing hand wheel (5) and the check valve male joint (4) are on the same straight line.
2. The positioning and fastening device for sulfur hexafluoride sampling test equipment according to claim 1, wherein: the fixing frame (2) comprises a front fixing plate (21), a side fixing plate (22), a bottom supporting plate (23) and a rear fixing plate (24); the front fixing plate (21) is of a U-shaped groove structure, the groove is clamped on the check valve female joint (1), and a flange plate of the check valve female joint (1) is positioned on the inner side of the front fixing plate (21); a rear fixing plate (24) is arranged at the position opposite to the front fixing plate (21); the bottom and the side surfaces of the front fixing plate (21) and the rear fixing plate (24) are respectively fixedly provided with a side fixing plate (22) and a bottom supporting plate (23); a sliding groove is formed in the inner side of the bottom supporting plate (23), and a check valve male connector (4) is installed on the sliding groove; the rear fixing plate (24) is provided with a threaded hole, and the rear fixing plate (24) is in threaded connection with the screwing hand wheel (5).
3. The positioning and fastening device for sulfur hexafluoride sampling test equipment according to claim 1, wherein: the width of the groove of the front fixing plate (21) is larger than the outer diameter of the joint of the check valve female joint (1) and equipment and smaller than the outer diameter of a flange of the check valve female joint (1).
4. The positioning and fastening device for sulfur hexafluoride sampling test equipment according to claim 1, wherein: a counter bore is arranged at the end of a screw rod of the screwing hand wheel (5), and a bearing (51) is arranged in the counter bore; a check valve male joint (4) is arranged in the bearing (51).
5. The positioning and fastening device for sulfur hexafluoride sampling test equipment according to claim 1, wherein: the check valve male joint (4) is provided with a gas pipe joint (3); the air pipe joint (3) is communicated with an internal pipeline of the check valve male joint (4); the air outlet of the air pipe joint (3) faces to the gap between the side fixing plate (22) and the bottom supporting plate (23) or the two side fixing plates (22).
6. The positioning and fastening device for sulfur hexafluoride sampling test equipment according to claim 1, wherein: an anti-screwing-out device (52) is arranged at the end of the screw of the screwing hand wheel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921683397.3U CN210774910U (en) | 2019-10-10 | 2019-10-10 | Positioning and fastening device of sulfur hexafluoride sampling detection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921683397.3U CN210774910U (en) | 2019-10-10 | 2019-10-10 | Positioning and fastening device of sulfur hexafluoride sampling detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210774910U true CN210774910U (en) | 2020-06-16 |
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ID=71048478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921683397.3U Active CN210774910U (en) | 2019-10-10 | 2019-10-10 | Positioning and fastening device of sulfur hexafluoride sampling detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210774910U (en) |
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2019
- 2019-10-10 CN CN201921683397.3U patent/CN210774910U/en active Active
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