CN113669334B - Transformer substation gas detection fixing clamp and using method thereof - Google Patents
Transformer substation gas detection fixing clamp and using method thereof Download PDFInfo
- Publication number
- CN113669334B CN113669334B CN202111053396.2A CN202111053396A CN113669334B CN 113669334 B CN113669334 B CN 113669334B CN 202111053396 A CN202111053396 A CN 202111053396A CN 113669334 B CN113669334 B CN 113669334B
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- China
- Prior art keywords
- clamp body
- pawl
- supporting arm
- movable handle
- interlayer
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- 238000001514 detection method Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 7
- 239000011229 interlayer Substances 0.000 claims abstract description 26
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 210000000080 chela (arthropods) Anatomy 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
- F16B2/10—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using pivoting jaws
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/036—Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The invention relates to a gas detection fixing clamp for a transformer substation, and belongs to the technical field of transformer substation maintenance instruments. The transformer substation gas detection fixing clamp comprises a left clamp body, a right clamp body, a pawl and a rotating pin; the left clamp body is movably connected with the right clamp body through a rotating pin; a return spring is connected between the left clamp body and the right clamp body; a pawl is arranged inside the right clamp body on one side of the left clamp body through a torsion spring and a pin; the pawl is in intermittent contact connection with the left clamp body; the left clamp body is of an integrated structure and comprises a bearing fork, a fixed handle and a clamp body; the lower end of the interlayer body is connected with a fixed handle; the upper end of the interlayer body is connected with a bearing fork through a connecting rod; a connecting hole A is formed inside the interlayer body; one side of the interlayer body is in an arc structure, and ratchets are uniformly distributed on the arc structure. This gaseous fixed pincers that detect of transformer substation compact structure has solved the problem that SF6 gas charging equipment has the work efficiency low in current detection mode, has satisfied the needs of the high-efficient use of enterprise.
Description
Technical Field
The invention relates to a transformer substation gas detection fixing clamp and a using method thereof, and belongs to the technical field of transformer substation maintenance instruments.
Background
In the field of power grid substation maintenance, SF6 gas charging equipment in a substation needs to be detected regularly. At present, when the SF6 gas filling detection device is used, after a disc-shaped interface of the detection device is aligned to a disc-shaped interface on the SF6 gas filling device, two operators respectively hold a clamp by hands, and after the disc-shaped interface of the detection device and the disc-shaped interface on the SF6 gas filling device are clamped from two directions, the detection device is started to detect the SF6 gas filling device. Although the existing detection mode can meet the requirement of SF6 inflation detection equipment, the problem of low working efficiency caused by the need of multi-person operation exists. In addition, when the two clamps are used for clamping the disc-shaped interface of the detection equipment and the disc-shaped interface on the SF6 inflation equipment, the problem of gas leakage caused by untight interface connection due to different clamping forces is easily caused. Therefore, a fixing clamp needs to be developed to solve the above problems of the conventional SF6 inflation detection device.
Disclosure of Invention
The invention aims to: the transformer substation gas detection fixing clamp is compact in structure and ingenious in design and solves the problem that the existing detection mode of SF6 gas charging equipment is low in working efficiency.
The technical scheme of the invention is as follows:
a kind of gas detection of converting station fixes the pincers, including left clamp, right clamp, pawl and rotary pin; the left clamp body is movably connected with the right clamp body through a rotating pin; a return spring is connected between the left clamp body and the right clamp body; the method is characterized in that: a pawl is arranged inside the right clamp body on one side of the left clamp body through a torsion spring and a pin; the pawl is in intermittent contact connection with the left clamp body; the left clamp body is of an integrated structure and comprises a bearing fork, a fixed handle and a clamp body; the lower end of the interlayer body is connected with a fixed handle; the upper end of the interlayer body is connected with a bearing fork through a connecting rod; a connecting hole A is formed inside the interlayer body; one side of the interlayer body is in an arc-shaped structure, and ratchets are uniformly distributed on the arc-shaped structure; the pawl is intermittently in contact connection with the ratchet.
The right clamp body comprises a movable handle, a supporting arm, a pressing block and a pressing spring; the supporting arm is inserted into the interlayer body and then arranged in a crossing way with the interlayer body; the middle part of the supporting arm is provided with a connecting hole B; the supporting arm is movably connected with a connecting hole A on the interlayer body through a connecting hole B and a rotating pin; two sides of the upper end of the supporting arm are hinged with a pressing block through a supporting plate; the outer side of the sandwich body is movably connected with a movable handle through a rotating pin; a compression spring is connected between the lower end of the movable handle and the lower end of the supporting arm.
The upper end of the movable handle is provided with an avoiding fork opening; the upper end of the avoiding fork opening is provided with a rotating pin; the inside of the avoiding fork opening is provided with a pawl through a torsion spring and a pin.
The middle part of the pawl is movably arranged in the movable handle through a torsion spring and a pin; the upper end of the pawl extends to the outside of the movable handle.
The invention has the advantages that:
this gaseous fixed pincers that detect of transformer substation compact structure, design benefit, the during operation can be fixed with the disc interface centre gripping on check out test set's the disc interface and the SF6 gas charging equipment through one-hand operation, has solved the problem that SF6 gas charging equipment has the work efficiency low in current detection mode from this, has satisfied the needs of the high-efficient use of enterprise.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic view of the left clamp body of the present invention;
FIG. 5 is a schematic diagram of the right side view of FIG. 4;
FIG. 6 is a schematic view of the right clamp body according to the present invention;
FIG. 7 is a schematic view of the movable handle of the present invention;
FIG. 8 is a schematic diagram of the right side view of FIG. 7;
FIG. 9 is a schematic view of the right clamp body of the present invention with the movable handle removed;
FIG. 10 is a schematic diagram of the right side view of the structure of FIG. 9;
FIG. 11 is an enlarged view of the structure at B in FIG. 1;
fig. 12 is a schematic structural diagram of the working state of the present invention.
In the figure: 1. a left clamp body; 2. a right clamp body; 3. a pawl; 4. rotating the pin; 5. a load bearing fork; 6. a sandwich body; 7. fixing a handle; 8. a connecting rod; 9. avoiding fork openings; 10. a connecting hole A; 11. a ratchet; 12. a pin; 13. a return spring; 14. a support arm; 15. a connecting hole B; 16. a compression block; 17. a movable handle; 18. compressing the spring.
Detailed Description
The transformer substation gas detection fixing clamp comprises a left clamp body 1, a right clamp body 2, a pawl 3 and a rotating pin 4 (see the attached figures 1 and 2 in the specification).
The left clamp body 1 is of an integrated structure and comprises a bearing fork 5, a fixed handle 7 and a sandwich body 6 (see the attached figure 4 in the specification); the lower end of the interlayer body 6 is connected with a fixed handle 7; the upper end of the sandwich body 6 is connected with a bearing fork 5 through a connecting rod 8 (see the description and the attached figures 4 and 5). The bearing fork 5 is in a semi-ring structure; the outer diameter of the bearing fork 5 is consistent with the outer diameter of a disc-shaped interface on SF6 gas charging equipment; the inner diameter of the bearing fork 5 is consistent with the outer diameter of a connecting pipe of a disc-shaped interface on SF6 gas charging equipment; during operation, after the bearing fork 5 is spliced with the disc-shaped interface on the SF6 inflating equipment, the connecting pipe on the SF6 inflating equipment can be positioned through the inner diameter of the bearing fork 5, and the bearing fork 5 is prevented from deviating from a station during operation.
A connecting hole A10 is formed inside the interlayer body 6; one side of the interlayer body 6 is in an arc structure, and ratchets 11 are uniformly distributed on the arc structure (refer to the attached figure 4 in the specification).
The right clamp body 2 comprises a movable handle 17, a supporting arm 14, a pressing block 16 and a pressing spring 18 (see the description and the attached figure 6); the supporting arm 14 is inserted into the interlayer body 6 of the left clip body 1 and arranged in a cross way with the interlayer body (see the description and the attached figure 2); the middle part of the supporting arm 14 is provided with a connecting hole B15 (see the attached figure 9 in the specification); the supporting arm 14 is movably connected with the connecting hole A10 on the sandwich body 6 through the connecting hole B15 and the rotating pin 4 (refer to the figures 4, 5 and 9 in the specification). The supporting arm 14 and the left clamp body 1 can rotate around the rotating pin 4 when being stressed.
Two sides of the upper end of the supporting arm 14 are hinged with a pressing block 16 through a support plate (see the description and the attached figure 9); a movable handle 17 (see the attached figure 6 in the specification) is arranged on the outer side of the interlayer body 6; the upper end of the movable handle 17 is provided with an avoidance fork 9 (see the attached figure 8 in the specification); the upper end of the avoidance fork opening 9 is provided with a rotating pin 4; the movable handle 17 is movably connected with the sandwich body 6 on the left sandwich body 1 through the rotating pin 4.
The avoidance fork 9 on the movable handle 17 is provided with the pawl 3 through a torsion spring and a pin 12 (see the attached figures 7 and 8 in the specification). The pawl 3 is in intermittent contact connection with the ratchet teeth 11. The middle part of the pawl 3 is movably arranged in the avoidance fork opening 9 through a torsion spring and a pin 12; the upper end of the pawl 3 extends outside the escape fork 9 (see fig. 3 in the description). When the ratchet mechanism works, when one end of the pawl 3 is pulled, the pawl 3 can be separated from the ratchet 11; when the pawl 3 is separated from the ratchet 11, the left clamp body 1 can freely rotate relative to the movable handle 17; when the clamp works, after people loosen one end of the pawl 3, the pawl 3 can be kept in fit connection with the ratchet 11 on the left clamp body 1 under the action of the elastic force of the torsion spring; therefore, under the matching of the pawl 3 and the ratchet 11, the movable handle 17 and the left clamp body 1 can only approach each other around the rotating pin 4 during the operation; when the movable handle 17 and the left clamp body 1 have a tendency of opening each other, the pawl 3 can lock the left clamp body 1 under the cooperation of the ratchet 11 so as to avoid the opening action between the movable handle 17 and the pawl.
A compression spring 18 is connected between the lower end of the movable handle 17 and the lower end of the supporting arm 14 (see the description and the attached figures 1 and 6). During operation, when the pressing block 16 at one end of the supporting arm 14 is stressed, the supporting arm 14 is drawn close to the movable handle 17, and the elastic force of the pressing spring 18 needs to be overcome, so that the pressing block 16 at one end of the supporting arm 14 can always keep a certain pressure under the elastic force of the pressing spring 18, and further the pressing block 16 can always keep a certain clamping force under the matching of the bearing fork 5 during operation, thereby ensuring that the fixing clamp can smoothly complete clamping and fixing work during operation.
The outer surface of the lower end of the supporting arm 14 is provided with a clamping force scale 19; the inner side of the movable handle 17 is provided with a force pointer 20; the force index 20 extends above the grip force scale 19 (see fig. 1 and 11 of the specification). The purpose of so setting up the force pointer 20 and the clamping force scale 19 is: because the fixed clamp is pressed by the pressing force provided by the pressing spring 18 during operation, the pressing force of the fixed clamp is larger when the pressing spring 18 deforms more when the supporting arm 14 and the movable handle 17 are closer together. Therefore, the pressing force of the fixed clamp is in a direct proportion relation with the relative position between the supporting arm 14 and the movable handle 17, and after the supporting arm 14 is provided with the adaptive clamping force scale 19, the clamping force scale 19 indicated by the action of the movable handle 17 to drive the force pointer 20 is the actual clamping force of the fixed clamp, so that an intuitive basis can be provided for the operation of an operator.
A return spring 13 is connected between the fixed handle 7 of the left clamp body 1 and the supporting arm 14 of the right clamp body 2 (see the description and the attached drawing 1); the spring force of the return spring 13 is much smaller than the spring force of the hold-down spring 18. The left clamp body 1 and the right clamp body 2 always have a tendency to spread apart from each other around the pivot pin 4 by the elastic force of the return spring 13.
This gaseous fixed pincers that detect of transformer substation, during operation, the one hand transversely grips this fixed pincers back, will bear fork 5 from the below and peg graft to waiting to examine on the interface of check out test set (disc interface on the SF6 gas filled equipment promptly), with compact heap 16 card go into the top of check out test set's interface (disc interface of the SF6 gas filled check out test set promptly) (refer to description attached figure 11).
After the work is finished, the movable handle 17 of the fixed clamp and the fixed handle 7 of the left clamp body 1 are held tightly by a single hand; after the movable handle 17 and the fixed handle 7 are stressed, the elastic force of the return spring 13 is overcome, and then the movable handle and the fixed handle are mutually closed; when the movable handle 17 and the fixed handle 7 are close to each other, the bearing fork 5 at one end of the left clamp body 1 and the pressing block 16 at one end of the right clamp body 2 are close to each other.
When the bearing fork 5 is abutted against an interface of the equipment to be detected (namely a disc-shaped interface on SF6 inflation equipment), and the pressing block 16 is abutted against an interface of the detection equipment (namely a disc-shaped interface of the SF6 inflation detection equipment), the movable handle 17 and the fixed handle 7 are continuously gripped; the pressure piece 16 is now forced to push the support arm 14 around the pivot pin 4 towards the movable handle 17 against the force of the pressure spring 18. In the process, the movable handle 17 rotates relative to the left clamp body 1, and the pawl 3 on the movable handle 17 acts relative to the ratchet 11; in the process, when a force pointer 20 on the movable handle 17 indicates a specified clamping force scale 19, the movable handle 17 and the fixed handle 7 are loosened, and the pawl 3 and the ratchet 11 are matched with each other to relatively lock the movable handle 17 and the left clamp body 1; the elastic force of the pressing spring 18 can be transmitted to an interface of the device to be detected (namely a disc-shaped interface on the SF6 gas-filled device) through the supporting arm 14 and the pressing block 16, so that the disc-shaped interface on the SF6 gas-filled device and the disc-shaped interface of the SF6 gas-filled detection device are clamped and fixed by the pressing block 16 under the cooperation of the bearing fork 5; therefore, the purpose of clamping and fixing the interface of the equipment to be detected and the interface of the detection equipment by one-hand operation can be achieved.
After the detection equipment finishes working, the pawl 3 is stirred to be separated from the ratchet 11; after the pawls 3 are disengaged from the ratchet teeth 11, the left clamp body 1 and the right clamp body 2 are rapidly opened and reset under the elastic force of the compression spring 18 and the return spring 13. After the fixed clamp is reset, the equipment to be detected and the detection equipment can be loosened, and then the fixed clamp can enter the next working cycle.
This gaseous fixed pincers that detect of transformer substation, compact structure, design benefit, the during operation can be fixed with the disc interface centre gripping on check out test set's the disc interface and the SF6 gas charging equipment through one-hand operation, has solved the problem that SF6 gas charging equipment has the work efficiency low in current detection mode from this, has satisfied the needs of the high-efficient use of enterprise.
Claims (1)
1. A transformer substation gas detection fixing clamp comprises a left clamp body (1), a right clamp body (2), a pawl (3) and a rotating pin (4); the left clamp body (1) is movably connected with the right clamp body (2) through a rotating pin (4); a return spring (13) is connected between the left clamp body (1) and the right clamp body (2); the method is characterized in that: a pawl (3) is arranged in the right clamp body (2) on one side of the left clamp body (1) through a torsion spring and a pin (12); the pawl (3) is in intermittent contact connection with the left clamp body (1); the left clamp body (1) is of an integrated structure and comprises a bearing fork (5), a fixed handle (7) and an interlayer body (6); the lower end of the interlayer body (6) is connected with a fixed handle (7); the upper end of the interlayer body (6) is connected with a bearing fork (5) through a connecting rod (8); a connecting hole A (10) is arranged inside the interlayer body (6); one side of the interlayer body (6) is of an arc-shaped structure, and ratchets (11) are uniformly distributed on the arc-shaped structure; the pawl (3) is intermittently in contact connection with the ratchet (11); the right clamp body (2) comprises a movable handle (17), a supporting arm (14), a pressing block (16) and a pressing spring (18); the supporting arm (14) is inserted into the interlayer body (6) and then arranged in a cross way with the interlayer body; a connecting hole B (15) is arranged in the middle of the supporting arm (14); the supporting arm (14) is movably connected with a connecting hole A (10) on the interlayer body (6) through a connecting hole B (15) and a rotating pin (4); two sides of the upper end of the supporting arm (14) are hinged with a pressing block (16) through a support plate; the outer side of the interlayer body (6) is movably connected with a movable handle (17) through a rotating pin (4); a compression spring (18) is connected between the lower end of the movable handle (17) and the lower end of the supporting arm (14);
an avoidance fork opening (9) is arranged at the upper end of the movable handle (17); the upper end of the avoidance fork opening (9) is provided with a rotating pin (4); the inside of the avoidance fork opening (9) is provided with a pawl (3) through a torsion spring and a pin (12);
the middle part of the pawl (3) is movably arranged in the movable handle (17) through a torsion spring and a pin (12); the upper end of the pawl (3) extends to the outer side of the movable handle (17);
the outer surface of the lower end of the supporting arm (14) is provided with a clamping force scale (19); the inner side of the movable handle (17) is provided with a force pointer (20); the force pointer (20) extends to the upper part of the clamping force scale (19);
during operation, when the pressing block (16) at one end of the supporting arm (14) is stressed, the supporting arm (14) is closed relative to the movable handle (17), the elastic force of the pressing spring (18) needs to be overcome and the pressing block (16) at one end of the supporting arm (14) is folded, so that the pressing block (16) at one end of the supporting arm (14) can always keep certain pressure under the action of the elastic force of the pressing spring (18), and further certain clamping force is always kept under the matching of the bearing fork (5) during operation, and therefore the fixed clamp can be smoothly clamped and fixed during operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111053396.2A CN113669334B (en) | 2021-09-09 | 2021-09-09 | Transformer substation gas detection fixing clamp and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111053396.2A CN113669334B (en) | 2021-09-09 | 2021-09-09 | Transformer substation gas detection fixing clamp and using method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113669334A CN113669334A (en) | 2021-11-19 |
| CN113669334B true CN113669334B (en) | 2022-11-04 |
Family
ID=78549078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111053396.2A Active CN113669334B (en) | 2021-09-09 | 2021-09-09 | Transformer substation gas detection fixing clamp and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113669334B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE222839T1 (en) * | 1999-02-11 | 2002-09-15 | Wolfcraft Gmbh | CLAMPING OR EXPANDING PLIERS |
| US6711789B2 (en) * | 2002-08-14 | 2004-03-30 | Great Neck Saw Manufacturers, Inc. | Clamp |
| CN101259604B (en) * | 2007-03-08 | 2010-12-08 | 上海昆杰五金工具有限公司 | Large vice operated by single hand |
| CN101513729B (en) * | 2009-04-03 | 2010-08-04 | 上海昆杰五金工具有限公司 | Clamp |
| CN105983921B (en) * | 2015-01-30 | 2023-03-24 | 杭州巨星工具有限公司 | Ratchet wheel clamp |
| CN206632885U (en) * | 2017-01-04 | 2017-11-14 | 杭州巨星工具有限公司 | A kind of ratchet mechanism and a kind of ratchet wheel clamp of misplace locking and release |
| CN215547973U (en) * | 2021-09-09 | 2022-01-18 | 国家电网有限公司 | Transformer substation gas detection fixing clamp |
-
2021
- 2021-09-09 CN CN202111053396.2A patent/CN113669334B/en active Active
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| Publication number | Publication date |
|---|---|
| CN113669334A (en) | 2021-11-19 |
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