CN113541025B - Expansion type operating device for 35kV handcart type switch cabinet - Google Patents
Expansion type operating device for 35kV handcart type switch cabinet Download PDFInfo
- Publication number
- CN113541025B CN113541025B CN202110995643.4A CN202110995643A CN113541025B CN 113541025 B CN113541025 B CN 113541025B CN 202110995643 A CN202110995643 A CN 202110995643A CN 113541025 B CN113541025 B CN 113541025B
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- shaft sleeve
- groove
- wall
- elastic shaft
- rocking handle
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- 230000000903 blocking effect Effects 0.000 claims abstract description 3
- 238000005452 bending Methods 0.000 claims description 7
- 229920001875 Ebonite Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Abstract
The invention discloses an expansion type operating device for a 35kV handcart type switch cabinet, which comprises a rocking handle and a crank, wherein the rocking handle and the crank are connected in a rotating mode, a fixing sleeve parallel to the rocking handle is arranged at one end, away from the rocking handle, of the crank, an axial through groove is formed in the fixing sleeve and comprises a fixing groove in the front part and a mounting groove in the rear part, the fixing groove is in blocking, clamping and matching with the outer wall of an operating head of the handcart type switch cabinet in the circumferential direction, an axial guide hole is formed in the operating head, a guide shaft in plug-in matching with the guide hole is arranged in the mounting groove, the guide shaft comprises an elastic shaft sleeve in plug-in matching with the mounting groove, one end, close to the guide hole, of the elastic shaft sleeve is sealed, a mandrel is arranged in matching with the inner hole of the elastic shaft sleeve, and the mandrel penetrates through the inner hole and tightly supports the outer wall of the elastic shaft sleeve on the inner wall of the guide hole. When the rocking handle is used, the mandrel is gradually inserted into the elastic shaft sleeve, so that the outer wall of the elastic shaft sleeve and the inner wall of the guide hole are tightly supported, and an operator needs to rotate the rocking handle at the moment without simultaneously axially jacking.
Description
Technical Field
The invention relates to the technical field of handcart type switch cabinets, in particular to an expansion type operating device for a 35kV handcart type switch cabinet.
Background
The handcart type switch cabinet comprises a cabinet body, wherein an upper door, a middle door and a lower door are arranged in front of the cabinet body; is characterized in that; a detachable baffle is arranged in the cabinet body, and the baffle separates a circuit breaker chamber, a bus chamber and a cable chamber of the cabinet body; a hole into which a moving contact of the integrated current transformer can be inserted is formed in the baffle; the handcart rail is arranged on the ground and is far away from the static contact of the isolating plug, and the handcart rail is arranged in the middle of the switch cabinet and is close to the static contact of the isolating plug.
In order to facilitate the operation of the heavy-current handcart type switch cabinet, a hand-operated mechanism is arranged on the handcart, so that the handcart can flexibly enter and exit the switch cabinet. When the existing hand-operated mechanism is used for operation, the operator needs to squat to the ground first and buckle the operating head of the hand-operated mechanism outside the hexagonal operating screw rod head. Because the axial elastic force of the crank handle needs to be overcome during the rotation operation, one hand is required to prop against the rotatable nut at the tail end of the crank handle, the other hand is provided with an insulating glove to hold the U-shaped rotating mechanism tightly, and the U-shaped rotating mechanism is operated in a forced rotation mode along one direction. The rotation axis and the screw rod are kept on the same straight line, the force is required to be uniform, and the left and right shaking cannot be realized. Only once, the stroke requires 42 revolutions. Therefore, the conventional hand-operated mechanism has the following problems:
(1) the equipment operation is complicated: when the traditional operating tool is used, an operator needs to fix the posture of kneeling with one knee and applying force with one hand by pushing the left hand at the right top, and the operation can be finished only by matching the two hands at the same time. The strength of the right hand top is small, and the crank is easy to throw off. The patient can feel full of sweat and weak arms after one operation; women have difficulty completing the procedure;
(2) the friction between the insulating gloves and the U-shaped operating rod is large: in the operation process, because insulating gloves and U type rotary rod friction are big, can beat the book on U type rotary rod, not only make insulating gloves damage, the operation jamming moreover, the moving contact is long when being close to the static contact discharge time, and can damage handcart equipment, has serious potential safety hazard.
The use of a conventional 35kV crank handle operation can cause a series of problems: if the force is not uniform, the operating head which is originally only buckled on the hexagonal operating screw rod head can be thrown out at any time. The wrist of an operator can be injured by the small-sized electric torch, unnecessary personal injury is caused, the large-sized electric torch can lead the actuating and static contacts to discharge too long, the contacts are burnt, normal power supply is influenced, and the service life of the equipment is shortened. Therefore, the traditional crank is inconvenient for operators to operate and also has safety risks for people and equipment.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an expansion type operating device for a 35kV handcart type switch cabinet, which solves the technical problems that the existing handcart type switch cabinet is inconvenient to operate and safety risks exist in operators and equipment.
The technical scheme of the invention is realized as follows: a expansion type operating means for 35kV handcart-type cubical switchboard, including rotating rocking handle and the crank of connecting, the one end that the crank deviates from the rocking handle is provided with the fixed cover parallel with the rocking handle, and when the operator held the rocking handle rotatory, the relative crank rotation of rocking handle also can revolve around fixed cover when, and then drives fixed cover and rotate. The fixed cover is internally provided with an axial through groove which comprises a front fixing groove and a rear mounting groove, the fixing groove is matched with the circumferential stop and clamping of the outer wall of the operating head of the handcart switch cabinet, and the operating head can be driven to synchronously rotate when the fixed cover rotates. The operation is overhead to be provided with axial guiding hole, is provided with in the mounting groove and pegs graft complex guiding axle with the guiding hole, and the guiding axle includes and pegs graft complex elastic shaft sleeve with the mounting groove, and the one end that elastic shaft sleeve is close to the guiding hole is sealed, and the hole cooperation of elastic shaft sleeve is provided with the dabber, and the dabber props the outer wall of elastic shaft sleeve tightly on the inner wall of guiding hole after penetrating the hole. When using, with fixed slot circumference joint on the outer wall of operating head, insert the guiding hole with the elastic shaft cover in, then insert the elastic shaft cover with the dabber gradually, make the outer wall of elastic shaft cover prop tightly with the inner wall of guiding hole, the operator this moment need rotate the rocking handle can, and need not axial roof pressure simultaneously.
Further, the crank includes the section of gripping coaxial with the rocking handle, and the rocking handle cover is established in the outside of the section of gripping, and the section of gripping is connected with the bending section perpendicularly, fixed cover is connected at the bending section and is deviated from the tip of the section of gripping.
Furthermore, the outer peripheral surface of the operating head is a hexagonal surface, and the inner wall surface of the fixing groove is also a hexagonal surface, so that the circumferential clamping fit between the fixing sleeve and the operating head is firmer and more reliable.
Furthermore, the rocking handle, the crank and the fixed sleeve integrally form a Z-shaped structure, so that the operation is convenient to rotate by one hand, the operation is more convenient and labor-saving, and the like can be easily completed.
Furthermore, the guide shaft is a magnetic shaft which is magnetically adsorbed to the guide hole, so that the insertion and the matching are more smooth, and the convenience in assembly is further improved.
Furthermore, the outer wall of the elastic shaft sleeve is provided with external rectangular threads, and the outer wall of the mandrel is provided with internal rectangular threads matched with the inner wall of the elastic shaft sleeve, so that the mandrel can be conveniently inserted into the elastic shaft sleeve.
Furthermore, the elastic shaft sleeve is made of insulating plastic steel hard rubber, the mandrel is made of magnetic stainless steel, functional reliability is guaranteed from the material characteristic, and the service life of the elastic shaft sleeve is prolonged.
Further, the mounting groove includes the circular groove that leads to at middle part and sets up the cross circumference draw-in groove in circular groove periphery that leads to, the rear portion of elastic shaft sleeve be provided with cross circumference draw-in groove joint complex edge of a wing, prevent to deflect between elastic shaft sleeve and the guiding hole when the dabber inserts the hole.
Furthermore, the end part of the mandrel, which is far away from the guide hole, is provided with a rotating handle, so that the mandrel can be conveniently rotated to enter the inner hole.
Because the traditional crank can be thrown off in the rotating process, the main reason is that the operating head cannot be firmly fixed on the operating head of the equipment. The inventive design of the invention adopts the principle similar to an expansion nail, and the crank head is completely fixed by 'external tight and internal expansion', so that the friction force is increased, the fixed sleeve tightly locks the operating head, the fixed connection is realized, and the effect of not being thrown off is achieved. Reform transform into traditional 35kV crank and only need hand-held rotatable structure, reach the effect that insulating gloves and rocking handle do not play the book when rotatory.
An operator only needs to rotate the rotating handle of the mandrel, and the mandrel can gradually enter the expansion type elastic shaft sleeve by virtue of the rectangular threads (preventing the damage to the rubber expansion hole and uniformly acting on the inner wall of the rubber) in the rotating process. The elastic shaft sleeve is narrow in the interior and can be extruded, and the expansion is extruded on the inner wall of the guide hole in a dead mode, so that the crank can be firmly fixed on the operating head.
Compared with the prior art, the invention has the following beneficial effects:
(1) the operation is more convenient and labor-saving by one hand, and the like of women can be easily finished.
(2) The condition that the operation is stopped due to the fact that the insulating gloves are rolled does not exist, and the operation time is shortened; the damage rate of the equipment is reduced, and the cost is greatly saved.
(3) The novel crank is used for modifying the rod head, so that the physical consumption of operators can be reduced, the working efficiency is improved, the power failure time can be shortened, long-acting normal power supply is provided for users, the customer complaint amount is reduced, and the satisfaction degree is improved; meanwhile, social effect and economic benefit are brought to power supply companies.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic view of the present invention before assembly and use;
fig. 2 is a schematic structural view of the pouch of fig. 1;
FIG. 3 is a schematic view of the construction of the guide shaft of FIG. 1;
FIG. 4 is a schematic structural view of the elastomeric bushing of FIG. 3;
wherein:
1. a rocking handle;
2. a crank: 21. a gripping section, 22, a bending section;
3. fixing a sleeve: 31. the fixing groove 32, the mounting groove 321, the circular through groove 322 and the cross-shaped circumferential clamping groove;
5. an operating head 51, a guide hole;
6. the guide shaft 61, the elastic shaft sleeve 62, the core shaft 63, the external rectangular thread 64, the internal rectangular thread 65, the inner hole 66, the flange 67 and the rotary handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
An expansion type operating device for a 35kV handcart type switch cabinet is shown in figures 1-4 and comprises a rocking handle 1 and a crank 2 which are connected in a rotating mode, wherein a fixing sleeve 3 parallel to the rocking handle 1 is arranged at one end, deviating from the rocking handle 1, of the crank 2, and the rocking handle 1, the crank 2 and the fixing sleeve 3 integrally form a Z-shaped structure, so that the operation is convenient to rotate by one hand, the operation is more convenient and labor-saving, and the operation can be easily finished by the same ladies.
When an operator holds the rocking handle 1 to rotate, the rocking handle 1 revolves around the fixing sleeve 3 while rotating relative to the crank 2, and then the fixing sleeve 3 is driven to rotate. Specifically, the crank 2 includes the section of gripping 21 coaxial with the rocking handle 1, and the rocking handle 1 cover is established in the outside of the section of gripping 21, and the section of gripping 21 is connected with bending section 22 perpendicularly, fixed cover 3 is connected at the tip that bending section 22 deviates from the section of gripping 21.
The inner of the fixed sleeve 3 is provided with an axial through groove which comprises a front fixing groove 31 and a rear mounting groove 32, the fixing groove 31 is matched with the circumferential blocking and clamping of the outer wall of the operating head 5 of the handcart switch cabinet, and the operating head 5 can be driven to synchronously rotate when the fixed sleeve 3 rotates.
The operating head 5 is provided with an axial guide hole 51, a guide shaft 6 in splicing fit with the guide hole 51 is arranged in the mounting groove 32, the guide shaft 6 comprises an elastic shaft sleeve 61 in splicing fit with the mounting groove 32, one end, close to the guide hole 51, of the elastic shaft sleeve 61 is closed, a core shaft 62 is arranged in a fit manner of an inner hole 65 of the elastic shaft sleeve 61, and the core shaft 62 penetrates through the inner hole 65 and then tightly supports the outer wall of the elastic shaft sleeve 61 on the inner wall of the guide hole 51. When the operating head is used, the fixing groove 31 is circumferentially clamped on the outer wall of the operating head 5, the elastic shaft sleeve 61 is inserted into the guide hole 51, then the mandrel 62 is gradually inserted into the elastic shaft sleeve 61, the outer wall of the elastic shaft sleeve 61 is tightly supported with the inner wall of the guide hole 51, and at the moment, an operator only needs to rotate the rocking handle without simultaneously axially jacking.
The outer peripheral face of the operating head 5 is a hexagonal surface, and the inner wall face of the fixing groove 31 is also a hexagonal surface, so that circumferential clamping matching between the fixing sleeve and the operating head is firmer and more reliable.
Further, the guide shaft 6 is a magnetic shaft magnetically attracted with the guide hole 51, so that the insertion and the matching are more smooth, and the convenience in assembly is further improved.
Further, the outer wall of the elastic shaft sleeve 61 is provided with an outer rectangular thread 63, and the outer wall of the mandrel 62 is provided with an inner rectangular thread 64 matched with the inner wall of the elastic shaft sleeve 61, so that the mandrel can be conveniently inserted into the elastic shaft sleeve. The end of the mandrel 62 facing away from the guide hole 51 is provided with a turning handle 67 for facilitating the turning of the mandrel into the inner hole.
Furthermore, the elastic shaft sleeve 61 is made of insulating plastic steel hard rubber, and the mandrel 62 is made of magnetic stainless steel, so that the functional reliability is ensured and the service life is prolonged.
Further, mounting groove 32 includes the circular logical groove 321 at middle part and sets up the cross circumference draw-in groove 322 in circular logical groove periphery, the rear portion of elastic shaft sleeve 61 is provided with and follows closely matched flange 66 with cross circumference draw-in groove 322 joint, deflects between elastic shaft sleeve and the guiding hole when preventing that the dabber from inserting the hole.
Nothing in this specification is intended to be exhaustive of all conventional and well known techniques.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A expansion type operating means for 35kV handcart-type cubical switchboard, its characterized in that: comprises a rocking handle (1) and a crank (2) which are rotationally connected, a fixed sleeve (3) which is parallel to the rocking handle (1) is arranged at one end of the crank (2) which is far away from the rocking handle (1), an axial through groove is formed in the fixed sleeve (3), the through groove comprises a fixed groove (31) in the front part and a mounting groove (32) in the rear part, the fixed groove (31) is in circumferential blocking, clamping and matching with the outer wall of an operating head (5) of the handcart type switch cabinet, an axial guide hole (51) is formed in the operating head (5), a guide shaft (6) in plug-in matching with the guide hole (51) is arranged in the mounting groove (32), the guide shaft (6) comprises an elastic shaft sleeve (61) in plug-in matching with the mounting groove (32), one end, close to the guide hole (51), of the elastic shaft sleeve (61) is closed, a mandrel (62) is arranged in a matching manner in an inner hole (65) of the elastic shaft sleeve (61), and the mandrel (62) penetrates through the inner hole (65) to tightly support the outer wall of the elastic shaft sleeve (61) on the inner wall of the guide hole (51);
the outer wall of the elastic shaft sleeve (61) is provided with an external rectangular thread (63), and the outer wall of the mandrel (62) is provided with an internal rectangular thread (64) matched with the inner wall of the elastic shaft sleeve (61);
mounting groove (32) include circular logical groove (321) at middle part and set up cross circumference draw-in groove (322) in circular logical groove periphery, the rear portion of elastic shaft sleeve (61) be provided with cross circumference draw-in groove (322) joint complex flange (66).
2. An intumescent operating device for a 35kV handcart switch cabinet according to claim 1, characterized in that: crank (2) include with rocking handle (1) coaxial section of gripping (21), rocking handle (1) cover is established in the outside of section of gripping (21), section of gripping (21) is connected with bending section (22) perpendicularly, fixed cover (3) are connected and are deviated from the tip of section of gripping (21) in bending section (22).
3. The expansion type operating device for 35kV handcart type switch cabinet according to claim 1 or 2, characterized in that: the outer peripheral surface of the operating head (5) is a hexagonal surface, and the inner wall surface of the fixing groove (31) is also a hexagonal surface.
4. An expansion type operating device for a 35kV handcart type switch cabinet according to claim 3, wherein: the rocking handle (1), the crank (2) and the fixing sleeve (3) integrally form a Z-shaped structure.
5. An intumescent operating device for a 35kV handcart switch cabinet according to claim 3, characterized in that: the guide shaft (6) is a magnetic shaft magnetically attracted with the guide hole (51).
6. An intumescent operating device for a 35kV handcart switch cabinet according to claim 5, characterized in that: the elastic shaft sleeve (61) is made of insulating plastic steel hard rubber, and the mandrel (62) is made of magnetic stainless steel.
7. An intumescent operating device for a 35kV handcart switch cabinet according to claim 6, characterized in that: the end of the mandrel (62) departing from the guide hole (51) is provided with a rotating handle (67).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995643.4A CN113541025B (en) | 2021-08-27 | 2021-08-27 | Expansion type operating device for 35kV handcart type switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995643.4A CN113541025B (en) | 2021-08-27 | 2021-08-27 | Expansion type operating device for 35kV handcart type switch cabinet |
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| Publication Number | Publication Date |
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| CN113541025A CN113541025A (en) | 2021-10-22 |
| CN113541025B true CN113541025B (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110995643.4A Active CN113541025B (en) | 2021-08-27 | 2021-08-27 | Expansion type operating device for 35kV handcart type switch cabinet |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113381332B (en) * | 2021-04-29 | 2022-06-24 | 国网浙江省电力有限公司嘉兴供电公司 | Hole aligning pulling and inserting operating head |
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| CN110336212A (en) * | 2019-07-12 | 2019-10-15 | 广东电网有限责任公司 | A kind of KYN type switch cabinet handcart crank |
| CN110676743A (en) * | 2019-10-18 | 2020-01-10 | 国网河南省电力公司濮阳供电公司 | Magnetic force operation crank for anti-drop handcart |
| CN111351987A (en) * | 2020-04-22 | 2020-06-30 | 国家电网有限公司 | Handcart switch loop resistance test wiring device |
| CN211840485U (en) * | 2019-12-20 | 2020-11-03 | 昆明理工大学 | Novel anti-drop is hand device |
| CN213479099U (en) * | 2020-10-15 | 2021-06-18 | 中国第一汽车股份有限公司 | Device for locking differential mechanism |
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2021
- 2021-08-27 CN CN202110995643.4A patent/CN113541025B/en active Active
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| JPH1118219A (en) * | 1997-06-26 | 1999-01-22 | Tokyo Electric Power Co Inc:The | Tool for switch |
| US5914467A (en) * | 1997-08-11 | 1999-06-22 | Generac Power Systems, Inc. | Automatic transfer switch with improved positioning mechanism |
| KR100807544B1 (en) * | 2006-10-17 | 2008-02-28 | 엘에스산전 주식회사 | Cradle withdraw in and out device of circuit break |
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| Publication number | Publication date |
|---|---|
| CN113541025A (en) | 2021-10-22 |
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