CN113541029A - A can elasticity handcart crank for 35kV handcart-type cubical switchboard - Google Patents
A can elasticity handcart crank for 35kV handcart-type cubical switchboard Download PDFInfo
- Publication number
- CN113541029A CN113541029A CN202110996655.9A CN202110996655A CN113541029A CN 113541029 A CN113541029 A CN 113541029A CN 202110996655 A CN202110996655 A CN 202110996655A CN 113541029 A CN113541029 A CN 113541029A
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- Prior art keywords
- crank
- handcart
- sleeve
- wall
- outer wire
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/02—Details
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Clamps And Clips (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses an elastic handcart crank for a 35kV handcart type switch cabinet, which comprises a crank handle and a crank, wherein the crank handle and the crank are rotationally connected, one end of the crank, which is far away from the crank handle, is provided with an outer wire sleeve which is parallel to the crank handle, and when an operator holds the crank handle to rotate, the crank handle rotates relative to the crank handle and simultaneously revolves around the outer wire sleeve so as to drive the outer wire sleeve to rotate. The outer wire sleeve comprises at least two outer wire claws, each outer wire claw is elastically connected with the crank, the diameter of the free end of the outer wire sleeve formed by the outer wire claws is larger than the diameter close to the crank when external force is not applied, and the outer wall of the outer wire claw is in threaded connection with the inner wire sleeve, the inner wall of the outer wire sleeve and the operating head of the handcart switch cabinet in a compression joint mode. When the external screw sleeve is used, the external screw sleeve is sleeved outside the operating head, then the internal screw sleeve is rotated to enable the external screw claw to compress the outer wall of the operating head, and at the moment, an operator needs to rotate the rocking handle without simultaneously axially jacking. The invention has simple structure, quick operation and labor saving, shortens the operation time and avoids the damage to the personnel of the equipment.
Description
Technical Field
The invention relates to the technical field of handcart type switch cabinets, in particular to a handcart crank capable of being loosened and tightened 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 the handcart crank which can be loosened and tightened and used for the 35kV handcart type switch cabinet, and solves the technical problems that the existing handcart type switch cabinet is inconvenient to operate and has safety risks for operators and equipment.
The technical scheme of the invention is realized as follows: a can elasticity handcart crank 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 outer silk cover parallel with the rocking handle, and when the operator held the rocking handle rotatory, also can revolve around outer silk cover when the relative crank rotation of rocking handle, and then drive outer silk cover and rotate. The outer wire sleeve comprises at least two outer wire claws, each outer wire claw is elastically connected with the crank, the diameter of the free end of the outer wire sleeve formed by the outer wire claws is larger than the diameter close to the crank when external force is not applied, and the outer wall of the outer wire claw is in threaded connection with the inner wire sleeve, the inner wall of the outer wire sleeve and the operating head of the handcart switch cabinet in a compression joint mode. When the external screw sleeve is used, the external screw sleeve is sleeved outside the operating head, then the internal screw sleeve is rotated to enable the external screw claw to compress the outer wall of the operating head, and at the moment, an operator needs to rotate the rocking handle without simultaneously axially jacking.
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 crooked section perpendicularly, outer silk cover is connected at the tip that crooked section deviates from the section of gripping.
Furthermore, the outer peripheral surface of the operating head is a hexagonal surface, the number of the outer wire claws is six, and the inner walls of the outer wire claws are respectively matched with the prismatic surfaces of the operating head, so that the compression joint matching between the outer wire sleeve and the operating head is firmer and more reliable.
Furthermore, the rocking handle, the crank and the outer screw 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, an axial guide hole is formed in the operating head, and a guide shaft matched with the guide hole is arranged at the center of the outer thread sleeve, so that the inserting and matching are more smooth.
Furthermore, the guide shaft is a magnetic shaft magnetically adsorbed with the guide hole, so that convenience in assembly is further improved.
Further, the guiding axle includes the elasticity axle sleeve of being connected with the crank, the one end that the elasticity axle sleeve is close to the guiding hole is sealed, be provided with on the crank with the operation hole of the hole intercommunication of elasticity axle sleeve, pass the operation hole be provided with the hole complex dabber of elasticity axle sleeve, the dabber penetrates behind the hole with the outer wall of elasticity axle sleeve prop tightly on the inner wall of guiding hole. During operation, the outer screw sleeve is in compression fit with the outer wall of the operating head, and the mandrel is inserted into the elastic shaft sleeve, so that the elastic shaft sleeve is in compression fit with the inner wall of the operating head.
Further, the outer wall of elasticity axle sleeve is provided with outer rectangular screw, makes the crimping of elasticity axle sleeve and operating head inner wall more fasten, the outer wall of dabber be provided with elasticity axle sleeve inner wall complex interior rectangular screw, be convenient for the dabber peg graft to in the elasticity axle sleeve.
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 adjustable wrench, so that the outer thread sleeve tightly locks the operating head from 6 surfaces like a hand, thereby realizing fixed connection and achieving the function of not being thrown off. 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.
When the operating handle is used, an operator only needs to buckle the outer screw claw on the outer wall of the hexagonal operating head and then rotate the inner screw sleeve, the outer screw claw can be slowly tightened along with the advancing of the inner screw sleeve, 6 outer claws can be tightly attached to 6 outer wall surfaces of the operating head, and the crank is fixed on the outer wall of 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 mantle fiber of FIG. 1;
FIG. 3 is a schematic structural view of the inner wire sleeve of FIG. 1;
FIG. 4 is a schematic view of the construction of the guide shaft of FIG. 1;
wherein:
1. a rocking handle;
2. a crank: 21. a gripping section, 22, a bending section;
3. an outer thread sleeve: 31. an outer wire claw;
4. an inner thread sleeve;
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 and the inner hole.
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.
The utility model provides a can elasticity handcart crank for 35kV handcart-type cubical switchboard, as shown in figure 1, including rotating rocking handle 1 and the crank 2 of connecting, the one end that crank 2 deviates from rocking handle 1 is provided with the outer wire sleeve 3 parallel with rocking handle 1, crank 2 and outer wire sleeve 3 wholly constitute "Z" shape structure, the one-hand rotation operation of being convenient for, it is more convenient to operate, and is more laborsaving, and the same will of women also can accomplish easily.
When an operator holds the rocking handle 1 to rotate, the rocking handle 1 rotates relative to the crank 2 and simultaneously revolves around the outer screw sleeve 3, and then the outer screw sleeve 3 is driven to rotate. Specifically, the crank 2 includes a holding section 21 coaxial with the rocking handle 1, the rocking handle 1 is sleeved outside the holding section 21, the holding section 21 is vertically connected with a bending section 22, and the outer thread sleeve 3 is connected at the end of the bending section 22 deviating from the holding section 21.
As shown in fig. 1 and 2, when the operating head is used, the outer screw sleeve 3 is sleeved outside the operating head 5, and then the inner screw sleeve 4 is rotated to enable the outer screw claw 31 to press the outer wall of the operating head 5, at this time, an operator needs to rotate the rocking handle 1 without simultaneously pressing axially.
Furthermore, an axial guide hole 51 is formed in the operating head 5, and a guide shaft 6 matched with the guide hole 51 is arranged in the center of the outer thread sleeve 3, so that the inserting and matching are more smooth. The guide shaft 6 is a magnetic shaft magnetically attracted to the guide hole 51, thereby further improving the convenience in assembly.
Further, as shown in fig. 4, the guide shaft 6 includes an elastic shaft sleeve 61 connected to the crank 2, one end of the elastic shaft sleeve 61 close to the guide hole 51 is closed, an operation hole communicated with the inner hole of the elastic shaft sleeve 61 is provided on the crank 2, a core shaft 62 matched with the inner hole 65 of the elastic shaft sleeve 61 is provided through the operation hole, 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. During operation, the outer screw sleeve 3 is in compression fit with the outer wall of the operating head 5, and the mandrel 62 is inserted into the elastic shaft sleeve 61, so that the elastic shaft sleeve 61 is in compression fit with the inner wall of the operating head 5.
Further, the outer wall of elastic shaft sleeve 61 is provided with outer rectangular screw thread 63, makes the crimping of elastic shaft sleeve 61 and operating head 5 inner wall more firm, the outer wall of dabber 62 is provided with the interior rectangular screw thread 64 with elastic shaft sleeve 61 inner wall complex, is convenient for dabber 62 to peg graft to in the elastic shaft sleeve 61.
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 (8)
1. A can elasticity handcart crank for 35kV handcart-type cubical switchboard, its characterized in that: including rocking handle (1) and crank (2) that rotate to connect, the one end that crank (2) deviates from rocking handle (1) is provided with outer silk cover (3) parallel with rocking handle (1), outer silk cover (3) include two piece at least outer silk claws (31), and each outer silk claw (31) all is connected with crank (2) elastic connection, and outer silk cover (3) free end diameter that outer silk claw (31) constitute when not receiving external force is greater than the diameter that is close to crank (2) position, and the outer wall threaded connection of outer silk claw (31) has interior silk cover (4), inner wall and handcart-type cubical switchboard's operating head (5) crimping cooperation.
2. The retractable trolley crank for a 35kV handcart-type switch cabinet of claim 1, characterized in that: crank (2) include with rocking handle (1) coaxial section of gripping (21), and 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, the tip that deviates from the section of gripping (21) in bending section (22) is connected in outer silk cover (3).
3. The retractable trolley crank for a 35kV handcart-type switch cabinet according to claim 1 or 2, characterized in that: the peripheral surface of operating head (5) is six faceted pebbles, outer screw claw (31) are provided with six, and each outer screw claw (31) inner wall cooperates with each faceted pebble of operating head (5) respectively.
4. The retractable trolley crank for a 35kV handcart-type switch cabinet of claim 3, wherein: the rocking handle (1), the crank (2) and the outer thread sleeve (3) integrally form a Z-shaped structure.
5. The retractable trolley handle for a 35kV handcart type switch cabinet as claimed in any one of claims 1, 2 and 4, wherein: the operating head (5) is provided with an axial guide hole (51), and the center of the outer thread sleeve (3) is provided with a guide shaft (6) which is in penetrating fit with the guide hole (51).
6. The retractable trolley crank for a 35kV handcart-type switch cabinet of claim 5, wherein: the guide shaft (6) is a magnetic shaft magnetically attracted with the guide hole (51).
7. The retractable trolley crank for a 35kV handcart-type switch cabinet of claim 6, wherein: the guiding axle (6) includes elastic shaft sleeve (61) of being connected with crank (2), the one end that elastic shaft sleeve (61) is close to guiding hole (51) is sealed, be provided with the handle hole with the hole intercommunication of elastic shaft sleeve (61) on crank (2), pass the handle hole be provided with hole (65) complex dabber (62) of elastic shaft sleeve (61), dabber (62) penetrate after hole (65) with the outer wall bracing of elastic shaft sleeve (61) on the inner wall of guiding hole (51).
8. The retractable trolley crank for a 35kV handcart-type switch cabinet of claim 7, wherein: the outer wall of elastic shaft sleeve (61) is provided with outer rectangular screw thread (63), the outer wall of dabber (62) is provided with interior rectangular screw thread (64) with elastic shaft sleeve (61) inner wall complex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110996655.9A CN113541029B (en) | 2021-08-27 | 2021-08-27 | A can elasticity handcart crank for 35kV handcart-type cubical switchboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110996655.9A CN113541029B (en) | 2021-08-27 | 2021-08-27 | A can elasticity handcart crank for 35kV handcart-type cubical switchboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113541029A true CN113541029A (en) | 2021-10-22 |
| CN113541029B CN113541029B (en) | 2022-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110996655.9A Active CN113541029B (en) | 2021-08-27 | 2021-08-27 | A can elasticity handcart crank for 35kV handcart-type cubical switchboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113541029B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10356887B3 (en) * | 2003-10-30 | 2004-12-16 | Dehn + Söhne Gmbh + Co. Kg | Cleaning and maintenance equipment for electrical switchgear/transformers, in the 1-36 kV range, has an insulated rod and tube to take working heads in screw fittings as swan necks which can be shaped as required |
| CN101895069A (en) * | 2010-06-12 | 2010-11-24 | 江苏大全长江电器股份有限公司 | Quincuncial contact handling tool |
| CN203800461U (en) * | 2014-05-07 | 2014-08-27 | 国家电网公司 | Switch cabinet handcart operation device |
| CN204156388U (en) * | 2014-08-20 | 2015-02-11 | 国家电网公司 | Slip-off preventing wheelbarrow switch crank |
| CN204858380U (en) * | 2015-07-24 | 2015-12-09 | 宁夏力成电气集团有限公司 | Operating handle by high tension switchgear autonomous management |
| CN206490353U (en) * | 2017-02-07 | 2017-09-12 | 国网山东省电力公司临沂供电公司 | A kind of anti-dropout handcart handle |
| CN206524572U (en) * | 2017-01-20 | 2017-09-26 | 秦芳 | Middle truck operating handle of switch cubicle anti-drop device |
| CN207459527U (en) * | 2017-11-27 | 2018-06-05 | 国家电网公司 | A kind of 10kV arrester handcarts special operating tool |
| CN207542657U (en) * | 2017-11-29 | 2018-06-26 | 国网河南省电力公司焦作供电公司 | Adjustable type substation high-voltage switch gear handcart operating rocker handle |
| 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 |
| CN210817805U (en) * | 2019-09-30 | 2020-06-23 | 台州技师学院（筹） | Anti-breaking screw tap wrench |
| CN112757202A (en) * | 2020-12-29 | 2021-05-07 | 国家电网有限公司 | Electrician's spanner head of tight function of area clamp |
-
2021
- 2021-08-27 CN CN202110996655.9A patent/CN113541029B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10356887B3 (en) * | 2003-10-30 | 2004-12-16 | Dehn + Söhne Gmbh + Co. Kg | Cleaning and maintenance equipment for electrical switchgear/transformers, in the 1-36 kV range, has an insulated rod and tube to take working heads in screw fittings as swan necks which can be shaped as required |
| CN101895069A (en) * | 2010-06-12 | 2010-11-24 | 江苏大全长江电器股份有限公司 | Quincuncial contact handling tool |
| CN203800461U (en) * | 2014-05-07 | 2014-08-27 | 国家电网公司 | Switch cabinet handcart operation device |
| CN204156388U (en) * | 2014-08-20 | 2015-02-11 | 国家电网公司 | Slip-off preventing wheelbarrow switch crank |
| CN204858380U (en) * | 2015-07-24 | 2015-12-09 | 宁夏力成电气集团有限公司 | Operating handle by high tension switchgear autonomous management |
| CN206524572U (en) * | 2017-01-20 | 2017-09-26 | 秦芳 | Middle truck operating handle of switch cubicle anti-drop device |
| CN206490353U (en) * | 2017-02-07 | 2017-09-12 | 国网山东省电力公司临沂供电公司 | A kind of anti-dropout handcart handle |
| CN207459527U (en) * | 2017-11-27 | 2018-06-05 | 国家电网公司 | A kind of 10kV arrester handcarts special operating tool |
| CN207542657U (en) * | 2017-11-29 | 2018-06-26 | 国网河南省电力公司焦作供电公司 | Adjustable type substation high-voltage switch gear handcart operating rocker handle |
| CN210817805U (en) * | 2019-09-30 | 2020-06-23 | 台州技师学院（筹） | Anti-breaking screw tap wrench |
| 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 |
| CN112757202A (en) * | 2020-12-29 | 2021-05-07 | 国家电网有限公司 | Electrician's spanner head of tight function of area clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113541029B (en) | 2022-08-05 |
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