CN108551109B - Safety clamp and high-voltage switch cabinet - Google Patents
Safety clamp and high-voltage switch cabinet Download PDFInfo
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- CN108551109B CN108551109B CN201810396385.6A CN201810396385A CN108551109B CN 108551109 B CN108551109 B CN 108551109B CN 201810396385 A CN201810396385 A CN 201810396385A CN 108551109 B CN108551109 B CN 108551109B
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- 230000004888 barrier function Effects 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims 4
- 238000000034 method Methods 0.000 description 5
- 206010014357 Electric shock Diseases 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
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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
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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
- H02B11/02—Details
- H02B11/04—Isolating-contacts, e.g. mountings or shieldings
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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
- H02B11/24—Shutters or guards
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Clamps And Clips (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention relates to the technical field of electrical equipment, and discloses a safety clamp and a high-voltage switch cabinet. The safety clamp comprises a first clamping rod, a second clamping rod, a first connecting plate, a second connecting plate and a limiting assembly. The safety clamp and the high-voltage switch cabinet can firmly limit the up-and-down movement of the upper insulating baffle plate and the lower insulating baffle plate, so that the problem of potential safety hazards caused by mistakenly opening the insulating baffle plates is avoided, and the operation safety of operators is improved.
Description
Technical Field
The invention relates to the technical field of electrical equipment, in particular to a safety clamp and a high-voltage switch cabinet.
Background
A switch cabinet (switch cabinet) is an electrical device, external wires of the switch cabinet enter a main control switch in the cabinet first, then enter a sub-control switch, and all branches are arranged according to the requirements. Such as meters, automatic control, motor magnetic switches, various ac contactors, etc., and high-voltage and low-voltage switchgear, high-voltage buses, such as power plants, etc., and low-cycle relief for protecting major equipment.
The main function of a switch gear is to open and close, control and protect electric equipment in the process of generating, transmitting, distributing and converting electric energy of a power system. The components in the switch cabinet mainly comprise a breaker, a disconnecting switch, a load switch, an operating mechanism, a transformer, various protection devices and the like. The switch cabinets are classified into a movable switch cabinet and a fixed switch cabinet according to the installation mode of the circuit breaker; or according to the different cabinet structures, the switch cabinet can be divided into an open switch cabinet, a metal closed switch cabinet and a metal closed armored switch cabinet; according to different voltage levels, the high-voltage switch cabinet, the medium-voltage switch cabinet, the low-voltage switch cabinet and the like can be further divided. The method is mainly suitable for various different occasions such as power plants, transformer substations, petrochemical industry, metallurgical steel rolling, light industry textile, factories and mining enterprises, residential communities, high-rise buildings and the like.
The existing movable switch cabinet is frequently used in a transformer substation, when the movable switch cabinet is overhauled, after the trolley is pushed out of the switch cabinet, the bus is still electrified, so that an upper contact box in the high-voltage cabinet is electrified, and a lower contact box is electrified due to the possibility of feeder feedback power transmission. Therefore, if an maintainer opens the insulating baffle of the contact box by mistake, the risk of electric shock is brought to the human body, and a plurality of cases of electric shock casualties caused by the fact that the insulating baffle is opened by mistake exist in China by a plurality of maintainers exist, so that the method is a dangerous point in the overhaul work of the high-voltage cabinet and is also a great potential safety hazard.
At present, no technical measures are taken to prevent personnel from opening the contact box baffle by mistake in the overhaul process, and the personnel can only pay attention to not open the insulating baffle by mistake by completely relying on the own safety consciousness of the overhaul personnel, namely, the personnel consciousness is relied on to prevent the occurrence of safety accidents. Such self-artificial awareness is very difficult for a novice operator to have in actual operation, and the insulating barrier may be opened by the way of the operator when operating other components, so that a device capable of preventing the insulating barrier from being opened by mistake is required to ensure personal safety of an maintainer.
Disclosure of Invention
The invention aims to provide a safety clamp for solving the technical problem that an insulating baffle of a switch cabinet in the prior art is easy to open by mistake so as to have serious potential safety hazard.
The invention also aims to provide a high-voltage switch cabinet so as to solve the technical problem that the insulating baffle of the switch cabinet in the prior art is easy to open by mistake so as to have serious potential safety hazard.
Based on the first object, the present invention provides a safety clip, which comprises a first clip bar, a second clip bar, a first connecting plate, a second connecting plate and a limiting assembly;
the first clamping rod and the second clamping rod are arranged in a crossing mode, the first clamping rod and the second clamping rod are connected in a rotating mode at the crossing position, a first upper clamping member and a second upper clamping member which are used for pressing the upper insulating baffle are respectively arranged at the upper end of the first clamping rod and the upper end of the second clamping rod, and a first lower clamping member and a second lower clamping member which are used for pressing the lower insulating baffle are respectively arranged at the lower end of the first clamping rod and the lower end of the second clamping rod;
the first connecting plate is arranged at the left side of the crossing position of the first clamping rod and the second clamping rod, the second connecting plate is arranged at the right side of the crossing position of the first clamping rod and the second clamping rod, the upper end of the first clamping rod passes through the upper end of the first connecting plate, the lower end of the second clamping rod passes through the lower end of the first connecting plate, and the first connecting plate can slide relative to the length direction of the first clamping rod and the second clamping rod; the upper end of the second clamping rod passes through the upper end of the second connecting plate, the lower end of the first clamping rod passes through the lower end of the second connecting plate, and the second connecting plate can move relative to the length directions of the first clamping rod and the second clamping rod;
the limiting component is arranged on the first clamping rod and the second clamping rod and can limit the movement of the first connecting plate relative to the first clamping rod and the second clamping rod and the movement of the second connecting plate relative to the first clamping rod and the second clamping rod.
Further, the lengths of the first clamp bar and the second clamp bar are the same, and the crossing position is positioned at the center of the length direction of the first clamp bar and the second clamp bar.
Further, the first clamping rod and the second clamping rod are rotationally connected through a rotating shaft;
the first clamping rod and the second clamping rod are respectively provided with a first through shaft hole and a second through shaft hole corresponding to the crossing positions, and the rotating shaft sequentially passes through the first shaft hole and the second through shaft hole.
Further, the length of the rotating shaft is larger than the sum of the lengths of the first shaft hole and the second shaft hole, and a safety signboard is arranged on the part of the rotating shaft exposed out of the first shaft hole and the second shaft hole.
Further, the first connection plate and the second connection plate are symmetrically arranged with the crossing position as a symmetry center.
Further, external threads are respectively arranged at the parts of the first clamping rod and the second clamping rod at the two sides of the crossing position, limit nuts are respectively arranged at the two sides of the first clamping rod corresponding to the crossing position and the two sides of the second clamping rod corresponding to the crossing position, each limit nut is matched with the external threads of the corresponding clamping rod, and the external threads and the limit nuts form the limit assembly;
and, the limit nut that first clamp stick is close to first clamp stick upper end setting and the limit nut that second clamp stick is close to second clamp stick lower extreme setting all are located first connecting plate is close to one side of cross position, the limit nut that second clamp stick is close to second clamp stick upper end setting and the limit nut that first clamp stick is close to first clamp stick lower extreme setting all are located the second connecting plate is close to one side of cross position.
Further, the first upper clamping member is a first upper hook provided at an upper end of the first clamping bar and facing an upper edge of the upper insulating barrier, and the second upper clamping member is a second upper hook provided at an upper end of the second clamping bar and facing an upper edge of the upper insulating barrier;
the first lower clamping member is a first lower hook which is arranged at the lower end of the first clamping rod and faces the lower edge of the lower insulating baffle plate in a bending mode, and the second lower clamping member is a second lower hook which is arranged at the lower end of the second clamping rod and faces the lower edge of the lower insulating baffle plate in a bending mode.
Further, the first upper hook and the first lower hook are respectively and vertically arranged with the first clamping rod, and the second lower hook and the second upper hook are respectively and vertically arranged with the second clamping rod.
Further, the first upper hook, the first lower hook, the second upper hook and the second lower hook are respectively sleeved with a rubber sleeve.
Based on the second object, the invention further provides a high-voltage switch cabinet, which comprises a switch cabinet body and the safety clamp according to any one of the above, wherein the switch cabinet body comprises an upper contact box and a lower contact box, an upper insulating baffle is arranged above the upper contact box, a lower insulating baffle is arranged below the lower contact box, a first upper clamping member and a second upper clamping member are respectively pressed on the upper edge of the upper insulating baffle, and a first lower clamping member and a second lower clamping member are respectively pressed on the lower edge of the lower insulating baffle.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a safety clamp, which comprises a first clamping rod, a second clamping rod, a first connecting plate, a second connecting plate and a limiting assembly, wherein the first clamping rod and the second clamping rod are connected with each other through the first connecting plate;
the first clamping rod and the second clamping rod are arranged in a crossing mode, the first clamping rod and the second clamping rod are connected in a rotating mode at the crossing position, a first upper clamping member and a second upper clamping member which are used for pressing the upper insulating baffle are respectively arranged at the upper end of the first clamping rod and the upper end of the second clamping rod, and a first lower clamping member and a second lower clamping member which are used for pressing the lower insulating baffle are respectively arranged at the lower end of the first clamping rod and the lower end of the second clamping rod; the first connecting plate is arranged at the left side of the crossing position of the first clamping rod and the second clamping rod, the second connecting plate is arranged at the right side of the crossing position of the first clamping rod and the second clamping rod, the upper end of the first clamping rod passes through the upper end of the first connecting plate, the lower end of the second clamping rod passes through the lower end of the first connecting plate, and the first connecting plate can slide relative to the length direction of the first clamping rod and the second clamping rod; the upper end of the second clamping rod passes through the upper end of the second connecting plate, the lower end of the first clamping rod passes through the lower end of the second connecting plate, and the second connecting plate can move relative to the length directions of the first clamping rod and the second clamping rod; the limiting component is arranged on the first clamping rod and the second clamping rod and can limit the movement of the first connecting plate relative to the first clamping rod and the second clamping rod and the movement of the second connecting plate relative to the first clamping rod and the second clamping rod.
The safety clamp disclosed by the invention has the advantages that the positions of the first connecting plate and the second connecting plate are moved to adjust the opening distance of the first clamping rod and the second clamping rod, so that the first upper clamping member and the second upper clamping member can press the upper edge of the upper insulating baffle plate, and the first lower clamping member and the second lower clamping member press the lower edge of the insulating baffle plate through adjusting the positions of the first connecting plate and the second connecting plate. Therefore, the safety clamp can firmly limit the up-and-down movement of the upper insulating baffle plate and the lower insulating baffle plate by matching the lower limit of the upper insulating baffle plate and the upper limit of the lower insulating baffle plate in the cabinet body. Therefore, when overhauling personnel overhauls, the upper insulating baffle plate and the lower insulating baffle plate are fixed through the safety clamp, so that the problem of electric shock caused by mistakenly opening the insulating baffle plate can be effectively avoided, and the operation safety of the operators is improved.
The high-voltage switch cabinet comprises a switch cabinet body and the safety clamp, wherein the switch cabinet body comprises an upper contact box and a lower contact box, an upper insulating baffle is arranged above the upper contact box, a lower insulating baffle is arranged below the lower contact box, a first upper clamping member and a second upper clamping member are respectively pressed on the upper edge of the upper insulating baffle, and a first lower clamping member and a second lower clamping member are respectively pressed on the lower edge of the lower insulating baffle.
The high-voltage switch cabinet has the same beneficial effects as the safety clamp provided by the invention, the upper insulating baffle plate and the lower insulating baffle plate are firmly fixed during overhauling, the problem of electric shock caused by mistakenly opening the insulating baffle plates is effectively avoided, and the operation safety of operators is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a security clip according to an embodiment of the present invention;
FIG. 2 is a schematic view of a first clip bar of a security clip according to an embodiment of the present invention;
FIG. 3 is a schematic view of a first grip bar of a safety clip according to an embodiment of the present invention having a rubber boot disposed thereon;
fig. 4 is an enlarged view of a portion a of fig. 2.
Icon: 1-a first clamping bar; 11-a first upper hook; 12-a first lower hook; 13-a first shaft hole; 2-a second clamping bar; 21-a second upper hook; 22-a second lower hook; 3-a first connection plate; 4-a second connection plate; 5-a through pin; 6-limiting nuts; 61-a first nut; 62-a second nut; 7-external threads; 8-rubber sleeve.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used, the indicated azimuth or positional relationship is based on the azimuth or positional relationship shown in the drawings, only for convenience of description and simplification of the description, and does not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.
In the description of the present invention, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Referring to fig. 1 to 4, the present embodiment provides a safety clip comprising first and second clip bars 1 and 2, a first connecting plate 3, a second connecting plate 4 and a limiting assembly.
The first clamping rod 1 and the second clamping rod 2 are crossed to be in an X-shaped arrangement, the first clamping rod 1 and the second clamping rod 2 are connected in a rotating mode at the crossed position, a first upper clamping member and a second upper clamping member which are used for pressing an upper insulating baffle are respectively arranged at the upper end of the first clamping rod 1 and the upper end of the second clamping rod 2, and a first lower clamping member and a second lower clamping member which are used for pressing a lower insulating baffle are respectively arranged at the lower end of the first clamping rod 1 and the lower end of the second clamping rod 2.
The vertical setting of first connecting plate 3 is in the left side of first clamp stick 1 and the crossing position of second clamp stick 2, the vertical setting of second connecting plate 4 is in the right side of first clamp stick 1 and the crossing position of second clamp stick 2, the upper end and the lower extreme of first connecting plate 3 are provided with first guiding hole and second guiding hole down respectively, the upper end and the lower extreme of second connecting plate 4 are provided with second guiding hole and first guiding hole down respectively. The upper end of the first clamping rod 1 passes through a first upper guide hole at the upper end of the first connecting plate 3, the lower end of the second clamping rod 2 passes through a second lower guide hole at the lower end of the first connecting plate 3, the first connecting plate 3 can slide freely relative to the first clamping rod 1 and the second clamping rod 2 through the first upper guide hole and the second lower guide hole respectively, the upper end of the second clamping rod 2 passes through a second upper guide hole at the upper end of the second connecting plate 4, the lower end of the first clamping rod 1 passes through a first lower guide hole at the lower end of the second connecting plate 4, and the second connecting plate 4 can slide freely relative to the first clamping rod 1 and the second clamping rod 2 through the second upper guide hole and the first lower guide hole respectively.
The limiting component is arranged on the first clamping rod 1 and the second clamping rod 2 and can limit free sliding of the first connecting plate 3 relative to the first clamping rod 1 and the second clamping rod 2 and the second connecting plate 4 relative to the first clamping rod 1 and the second clamping rod 2.
It will be appreciated that the first connecting plate 3 and the second connecting plate 4 of this embodiment are used to control the opening distances of the two sides of the intersecting position of the first clip rod 1 and the second clip rod 2, respectively, and the adjustment of the specific opening distances is achieved by moving the connecting plates along the length direction of the clip rods: the farther the first connecting plate 3 and the second connecting plate 4 deviate from the crossing position, the smaller the opening degree of the first clamping bar 1 and the second clamping bar 2, and correspondingly, the smaller the vertical spacing between the first upper clamping member and the second upper clamping frame and the first lower clamping member and the second lower clamping member.
The limiting component has the function of relatively fixing the first connecting plate 3 and the second connecting plate 4 with the first clamping rod 1 and the second clamping rod 2 after the first connecting plate 3 and the second connecting plate 4 move in place (namely, the first connecting plate 3 and the second connecting plate 4 adjust the opening distance of the first clamping rod 1 and the second clamping rod 2 to the required positions), so that the opening distance of the first clamping rod 1 and the second clamping rod 2 is prevented from changing.
The first upper clamping member and the second upper clamping member of the safety clip of the embodiment are used for pressing the upper edge of the upper insulating baffle, and the first lower clamping member and the second lower clamping member are used for pressing the lower edge of the lower insulating baffle. The connecting plate is used for adjusting the gap between the clamping bars, so that the first upper clamping member and the second upper clamping member can be pressed on the upper edge of the upper insulating baffle plate, and the first lower clamping member and the second lower clamping member can be pressed on the lower edge of the lower insulating baffle plate; the purpose of the limiting assembly is to lock the spacing of the clamping bars when the first upper clamping member and the second upper clamping member are pressed against the upper edge of the upper insulating barrier and the first lower clamping member and the second lower clamping member are pressed against the lower edge of the lower insulating barrier, i.e., to lock the first upper clamping member and the second upper clamping member against the upper edge of the upper insulating barrier and the first lower clamping member and the second lower clamping member against the lower edge of the lower insulating barrier.
In practical application, the upper insulating baffle and the lower insulating baffle are arranged in the high-voltage switch cabinet, and the upper insulating baffle is provided with a lower limit, so that the lower insulating baffle can move upwards in a limited manner by the lowest position (in contact with the lower limit); the lower insulating barrier itself has a lower limit so that the lower insulating barrier can move downward with the highest level (in contact with the upper limit). Thus, if the upper insulating baffle and the lower insulating baffle are not fixed well and move up and down at will, personal injury can be caused when dangerous high voltage exists in the high-voltage cabinet.
According to the safety clamp, the upper insulating baffle is limited to move upwards through the first upper clamping member and the second upper clamping member, the lower insulating baffle is limited to move downwards through the first lower clamping member and the second lower clamping member, the upper insulating baffle and the lower insulating baffle can be fixed up and down by matching with the lower limit of the upper insulating baffle and the upper limit of the lower insulating baffle, the situation that an operator opens the insulating baffle by mistake during maintenance is avoided, the serious potential safety hazard of a high-voltage switch cabinet during maintenance is thoroughly eliminated, and the personal safety of maintenance personnel is protected.
In the safety clip of this embodiment, as shown in fig. 1, the first clip rod 1 and the second clip rod 2 with the same length may be selected, and the centers of the first clip rod 1 and the second clip rod 2 in the length direction are used as the intersecting positions, and at the same time, the first connecting plate 3 and the second connecting plate 4 are symmetrically arranged with the intersecting positions as symmetrical centers.
It can be understood that the first clamping bar 1 and the second clamping bar 2 with equal lengths are adopted and are rotationally connected by taking the center of the length direction as the axis, so that the distance between the upper end of the first clamping bar 1 and the crossing position is conveniently ensured to be the same as the distance between the upper end of the second clamping bar 2 and the crossing position, and the distance between the lower end of the second clamping bar 2 and the crossing position is conveniently ensured to be the same as the distance between the lower end of the second clamping bar 2 and the crossing position; that is, the opening distance of the safety clamping rod is conveniently adjusted in the use process so as to be matched with the upper insulating baffle plate and the lower insulating baffle plate.
As an alternative embodiment of the present invention, the first gripper bar 1 and the second gripper bar 2 may be rotatably connected using a rotation shaft. The first clamping rod 1 and the second clamping rod 2 are respectively provided with a first through shaft hole 13 and a second through shaft hole corresponding to the crossing positions, and the rotating shaft sequentially passes through the first shaft hole 13 and the second through shaft hole. In fig. 2 is given a schematic view of a first pinch-rod 1, wherein the second pinch-rod 2 has the same structure as the first pinch-rod 1.
In order to avoid the height difference between the two ends of the first clamping rod and the two ends of the second clamping rod, the rod bodies, close to the crossing positions, of the first clamping rod 1 and the second clamping rod 2 can be flattened along the axial direction of the shaft hole and then are rotationally connected through a rotating shaft.
The spindle may be a through pin 5. The rotary shaft connection mode is adopted, so that the relative arrangement of the two clamping bars around the shaft is realized, and the structure is simple and the installation is convenient; the rod bodies of the first clamping rod and the second clamping rod at the crossing positions are flattened along the axial direction of the shaft hole, so that the length of the shaft hole is shortened, the two clamping rods can be connected in a rotating mode without using too long through pins, and meanwhile the problem that the height difference between the two ends of the first clamping rod and the height difference between the two ends of the second clamping rod are too large is solved.
Preferably, the length of the through pin 5 is greater than the sum of the lengths of the first shaft hole 13 and the second shaft hole, so that the through pin 5 has a portion exposed outside the first shaft hole 13 and the second shaft hole, and a safety signboard (not shown) can be hung on the exposed portion of the through pin 5.
The length of the exposed part of the through pin 5 is about 2 cm, and the safety mark plate is arranged on the safety clamp, so that operators can be reminded of opening the insulating baffle without misoperation, and potential safety hazards are further prevented.
As a preferred embodiment of the limiting assembly of the present invention, the portions of the first clamping bar 1 and the second clamping bar 2 at two sides of the crossing position are respectively provided with external threads 7, two sides of the first clamping bar 1 corresponding to the crossing position and two sides of the second clamping bar 2 corresponding to the crossing position are respectively provided with limiting nuts 6, and each limiting nut 6 is adapted to the external threads 7 on the corresponding clamping bar.
For convenience of description, the limit nut 6 near the upper end of the first clip rod 1 and the limit nut 6 near the lower end of the second clip rod 2 are defined as a first nut 61, and the limit nut 6 near the upper end of the second clip rod 2 and the limit nut 6 near the lower end of the first clip rod 1 are defined as a second nut 62.
The first nut 61 is provided on the side of the first connecting plate 3 near the axial center (also the intersection of the first clip rod 1 and the second clip rod 2), and the second nut 62 is provided on the side of the second connecting plate 4 near the axial center (also the intersection of the first clip rod 1 and the second clip rod 2).
Wherein, the external thread 7 on each side of each clip rod can cover 1/2 of the axial center to the tail end of the clip rod (namely, the total length of the external thread of each clip rod, which covers the two ends from the center, accounts for 1/2 of the length of each clip rod), so as to facilitate the adjustment of the opening distance.
It can be understood that the first nut 61 and the second nut 62 are matched with corresponding external threads 7 to serve as limiting components, and the opening degree of the clamping rod can be fixed only by arranging the limiting nuts 6 on one side, close to the axis, of the first connecting plate 3 and the second connecting plate 4, and the first nut 61 props against the first connecting plate 3 and the second nut 62 props against the second connecting plate 4. Has the advantages of convenient adjustment and simple structure.
The first upper clamping member of the safety clip of the present embodiment is a first upper hook 11 which is provided at the upper end of the first clamping bar 1 and faces the upper edge of the upper insulating barrier, and the second upper clamping member is a second upper hook 21 which is provided at the upper end of the second clamping bar 2 and faces the upper edge of the upper insulating barrier; the first lower clamping member is a first lower hook 12 provided at the lower end of the first clamping bar 1 and bent to face the lower edge of the lower insulating barrier, and the second lower clamping member is a second lower hook 22 provided at the lower end of the second clamping bar 2 and bent to face the lower edge of the lower insulating barrier.
As an alternative, the first upper hooks 11 and the first lower hooks 12 are arranged perpendicular to the first pinch bar 1, and the second lower hooks 22 and the second upper hooks 21 are arranged perpendicular to the second pinch bar 2.
It will be appreciated that the first upper hook 11 and the first lower hook 12 of the present embodiment may be directly bent from two ends of the first clip rod 1, and the second lower hook 22 and the second upper hook 21 may be directly bent from two ends of the second clip rod 2. Typically, each hook will have a length of about 3 cm. The hook is adopted as the clamping component, and the structure is simple and the manufacture is convenient.
Preferably, the rubber sleeve 8 is respectively sleeved on the first upper hook 11, the first lower hook 12, the second upper hook 21 and the second lower hook 22. The rubber sleeve 8 can increase the friction force between the hook and the insulating baffle plate, and further strengthen the clamping effect.
When the safety clamp is used in overhauling a high-voltage safety cabinet, firstly, each limit nut 6 is respectively screwed to a position close to the axis, the first clamping rod 1 and the second clamping rod 2 are opened, the first upper hook 11 and the second upper hook 21 are respectively pressed on the upper edge of an upper insulating baffle, and the first lower hook 12 and the second lower hook 22 are respectively pressed on the lower edge of a lower insulating baffle; and each limit nut 6 is rotated and moved from the axis to the end part of the corresponding clamping rod, so that after each limit nut 6 is tightly propped against the connecting plate, the upper insulating baffle and the lower insulating baffle can be clamped by four hooks of the safety clamp, and the fixed clamping rod cannot be expanded in opening distance at two ends due to the common limitation of the connecting plate and the limit nuts 6, and the insulating baffle is limited to be opened up and down.
When the safety clamp is required to be taken out after the work is finished, the whole safety clamp can be pulled outwards, or the limit nut 6 is retracted to the position close to the axle center, so that the two ends of the clamping rod can be loosened.
In summary, the safety clamp disclosed by the invention can fasten the insulating baffle clamp of the high-voltage switch cabinet in a closed state, an operator cannot open the insulating baffle, and meanwhile, the safety clamp can hang the safety identification plate, so that the awareness of an maintainer on the dangerous point is further improved. The safety clamp adopts an X-shaped structure, has a simple structure and a light whole body, can simply and conveniently adjust the opening distance of the safety clamp by utilizing the law of triangle, eliminates the serious potential safety hazard of an maintainer for opening the insulating baffle by mistake, and ensures the safety of operators.
Example two
The embodiment provides a high-voltage switch cabinet, which comprises a switch cabinet body and the safety clamp in the first embodiment. The switch cabinet body is an existing common high-voltage switch cabinet and comprises an upper contact box and a lower contact box, an upper insulating baffle is arranged above the upper contact box, and a lower insulating baffle is arranged below the lower contact box.
The first upper clamping member and the second upper clamping member of the safety clamp respectively press on the upper edge of the upper insulating baffle plate, and the first lower clamping member and the second lower clamping member respectively press on the lower edge of the lower insulating baffle plate.
The advantages of the high-voltage switch cabinet and the safety clamp provided by the invention compared with the prior art are the same, and are not repeated here.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. The safety clamp is characterized by comprising a first clamping rod, a second clamping rod, a first connecting plate, a second connecting plate and a limiting assembly;
the first clamping rod and the second clamping rod are arranged in a crossing mode, the first clamping rod and the second clamping rod are connected in a rotating mode at the crossing position, a first upper clamping member and a second upper clamping member which are used for pressing the upper insulating baffle are respectively arranged at the upper end of the first clamping rod and the upper end of the second clamping rod, and a first lower clamping member and a second lower clamping member which are used for pressing the lower insulating baffle are respectively arranged at the lower end of the first clamping rod and the lower end of the second clamping rod;
the first connecting plate is arranged at the left side of the crossing position of the first clamping rod and the second clamping rod, the second connecting plate is arranged at the right side of the crossing position of the first clamping rod and the second clamping rod, the upper end of the first clamping rod passes through the upper end of the first connecting plate, the lower end of the second clamping rod passes through the lower end of the first connecting plate, and the first connecting plate can slide relative to the length direction of the first clamping rod and the second clamping rod; the upper end of the second clamping rod passes through the upper end of the second connecting plate, the lower end of the first clamping rod passes through the lower end of the second connecting plate, and the second connecting plate can move relative to the length directions of the first clamping rod and the second clamping rod;
the limiting component is arranged on the first clamping rod and the second clamping rod and can limit the movement of the first connecting plate relative to the first clamping rod and the second clamping rod and the movement of the second connecting plate relative to the first clamping rod and the second clamping rod.
2. The safety clip of claim 1 wherein the first and second clip bars are the same length, and the crossover location is centered in the length direction of the first and second clip bars.
3. The safety clip according to claim 1 or 2, wherein the first clip bar and the second clip bar are rotatably connected by a rotation shaft;
the first clamping rod and the second clamping rod are respectively provided with a first through shaft hole and a second through shaft hole corresponding to the crossing positions, and the rotating shaft sequentially passes through the first shaft hole and the second through shaft hole.
4. A safety clip according to claim 3, wherein the length of the shaft is greater than the sum of the lengths of the first shaft hole and the second shaft hole, and the portion of the shaft exposed outside the first shaft hole and the second shaft hole is provided with a safety signboard.
5. The clip of claim 2 wherein the first web and the second web are symmetrically disposed about the intersection location.
6. The safety clamp according to claim 1, wherein the portions of the first clamp bar and the second clamp bar at two sides of the crossing position are respectively provided with external threads, two sides of the first clamp bar corresponding to the crossing position and two sides of the second clamp bar corresponding to the crossing position are respectively provided with limit nuts, each limit nut is matched with the external threads of the corresponding clamp bar, and the external threads and the limit nuts form the limit assembly;
and, the limit nut that first clamp stick is close to first clamp stick upper end setting and the limit nut that second clamp stick is close to second clamp stick lower extreme setting all are located first connecting plate is close to one side of cross position, the limit nut that second clamp stick is close to second clamp stick upper end setting and the limit nut that first clamp stick is close to first clamp stick lower extreme setting all are located the second connecting plate is close to one side of cross position.
7. The safety clip of claim 1, wherein the first upper clamping member is a first upper hook disposed at an upper end of the first clip bar and facing an upper edge of the upper insulating barrier, and the second upper clamping member is a second upper hook disposed at an upper end of the second clip bar and facing an upper edge of the upper insulating barrier;
the first lower clamping member is a first lower hook which is arranged at the lower end of the first clamping rod and faces the lower edge of the lower insulating baffle plate in a bending mode, and the second lower clamping member is a second lower hook which is arranged at the lower end of the second clamping rod and faces the lower edge of the lower insulating baffle plate in a bending mode.
8. The safety clip of claim 7, wherein the first upper hook and the first lower hook are disposed perpendicular to the first clip bar, respectively, and the second lower hook and the second upper hook are disposed perpendicular to the second clip bar, respectively.
9. The clip of claim 7 or 8, wherein the first upper hook, the first lower hook, the second upper hook, and the second lower hook are each sleeved with a rubber sleeve.
10. A high tension switchgear, characterized in that, include switch cabinet body and the safety clamp of any one of claims 1-9, the switch cabinet body includes upper contact box and lower contact box, upper insulation baffle is provided with to the top of upper contact box, the below of lower contact box is provided with down insulation baffle, first upper clamp member and second upper clamp member are pressed respectively on the upper edge of upper insulation baffle, first lower clamp member and second lower clamp member are pressed respectively on the lower edge of lower insulation baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396385.6A CN108551109B (en) | 2018-04-27 | 2018-04-27 | Safety clamp and high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810396385.6A CN108551109B (en) | 2018-04-27 | 2018-04-27 | Safety clamp and high-voltage switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108551109A CN108551109A (en) | 2018-09-18 |
| CN108551109B true CN108551109B (en) | 2024-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810396385.6A Active CN108551109B (en) | 2018-04-27 | 2018-04-27 | Safety clamp and high-voltage switch cabinet |
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| Country | Link |
|---|---|
| CN (1) | CN108551109B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728780A (en) * | 2009-12-21 | 2010-06-09 | 安徽鑫龙电器股份有限公司 | Grounding device of metal-clad moveable high-voltage switchgear |
| CN102097761A (en) * | 2010-12-22 | 2011-06-15 | 安徽省电力公司黄山供电公司 | Electric shock prevention cart for high voltage switch cabinet |
| CN202308876U (en) * | 2011-10-13 | 2012-07-04 | 吉林省电力有限公司长春供电公司 | Insulated baffle plate for preventing mistakenly getting electric shock in 10KV trolley switch cabinet |
| CN204972523U (en) * | 2015-08-17 | 2016-01-20 | 广东百合医疗科技股份有限公司 | Y type safety indwelling needle |
| CN208046085U (en) * | 2018-04-27 | 2018-11-02 | 广东电网有限责任公司 | Safety clamp and high-tension switch cabinet |
-
2018
- 2018-04-27 CN CN201810396385.6A patent/CN108551109B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728780A (en) * | 2009-12-21 | 2010-06-09 | 安徽鑫龙电器股份有限公司 | Grounding device of metal-clad moveable high-voltage switchgear |
| CN102097761A (en) * | 2010-12-22 | 2011-06-15 | 安徽省电力公司黄山供电公司 | Electric shock prevention cart for high voltage switch cabinet |
| CN202308876U (en) * | 2011-10-13 | 2012-07-04 | 吉林省电力有限公司长春供电公司 | Insulated baffle plate for preventing mistakenly getting electric shock in 10KV trolley switch cabinet |
| CN204972523U (en) * | 2015-08-17 | 2016-01-20 | 广东百合医疗科技股份有限公司 | Y type safety indwelling needle |
| CN208046085U (en) * | 2018-04-27 | 2018-11-02 | 广东电网有限责任公司 | Safety clamp and high-tension switch cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108551109A (en) | 2018-09-18 |
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