CN113013797B - Fixing device for low-voltage live-line exchange of electric wire for ammeter - Google Patents
Fixing device for low-voltage live-line exchange of electric wire for ammeter Download PDFInfo
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- CN113013797B CN113013797B CN202110178605.XA CN202110178605A CN113013797B CN 113013797 B CN113013797 B CN 113013797B CN 202110178605 A CN202110178605 A CN 202110178605A CN 113013797 B CN113013797 B CN 113013797B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
Abstract
The application discloses a fixing device for low-voltage live-line replacement of electric wires for an ammeter, and aims to provide a fixing device capable of effectively improving the working efficiency of live-line replacement of the ammeter; and the operation safety is good, can effectively solve the fixing device of the problem of potential safety hazard because of the phase line on the electric energy meter bumps the line in the current live replacement electric energy meter operation process. The device comprises a pair of handles, wherein the handles are hinged and connected through a hinge shaft, and a torsion spring is arranged on the hinge shaft; the clamp head assembly comprises a pair of clamping parts which are connected in a sliding manner, and a plurality of first chucks are arranged on one clamping part; the other clamping part is provided with a plurality of second chucks, and each first chuck and the corresponding second chuck respectively form a clamp mouth for clamping the electric wire; one clamping part of the pair of clamping parts is fixed on one handle, the other clamping part is provided with a strip-shaped hole, a sliding rod sliding along the strip-shaped hole is arranged in the strip-shaped hole, and the sliding rod is fixed on the other handle.
Description
Technical Field
The application relates to a fixing device for electric wires, in particular to a fixing device for low-voltage live-line exchange of electric wires for an ammeter.
Background
At present, in the process of replacing the electric energy meter under low-voltage electrification, an operator needs to sequentially detach and insulate and wrap each wire on the electric energy meter, specifically, when one wire is detached, the next wire can be detached only after the exposed part of the wire is wrapped by the insulating tape, the wires cannot be detached at the same time, and the electric energy meter can be replaced after all wires are wrapped; similarly, when the installation wires are electrified, the insulation packages are required to be removed in sequence for installation, and the insulation packages cannot be removed at the same time; this makes the operation of the current low voltage live-line change electric energy meter inconvenient and the change efficiency is low. On the other hand, because the operation of the existing low-voltage live-line replacement of the electric energy meter is very inconvenient, in order to improve the operation efficiency of replacing the electric energy meter, operators often have operation inaccuracy, all leads on the electric energy meter are simultaneously removed at one time, and then insulation wrapping is carried out; similarly, when the wires are installed, after the insulation packages of all the wires are removed, the wires are installed, so that the replacement efficiency of the electric energy meter is improved; the operation is that the spacing of the wires on the electric energy meter is small, the wire ends are easy to shake, the phase wires are easy to be caused to collide, and the problem of great potential safety hazard exists.
Disclosure of Invention
The application aims to provide a fixing device for low-voltage live-line replacement of electric wires for an ammeter, which can effectively improve the working efficiency of live-line replacement of the ammeter; moreover, the operation safety is good, and the problem of potential safety hazards caused by line-to-line contact of the phase line on the electric energy meter in the current operation process of live replacement of the electric energy meter can be effectively solved.
The technical scheme of the application is as follows:
a fixing device for low voltage live-line exchange of electric wires for an electric meter, comprising:
the pair of handles are hinged and connected through a hinge shaft, and a torsion spring is arranged on the hinge shaft;
the clamp head assembly comprises a pair of clamping parts which are connected in a sliding manner, wherein one clamping part is provided with a plurality of first chucks, and each first chuck is sequentially distributed along the sliding direction of the clamping part; the other clamping part is provided with a plurality of second chucks which are in one-to-one correspondence with the first chucks, each second chuck is sequentially distributed along the sliding direction of the clamping part, and each first chuck and the corresponding second chuck respectively form a clamp mouth for clamping the electric wire;
one clamping part of the pair of clamping parts is fixed on one handle, the other clamping part is provided with a strip-shaped hole, a sliding rod sliding along the strip-shaped hole is arranged in the strip-shaped hole, the sliding rod is parallel to the hinging shaft, and the sliding rod is fixed on the other handle.
The specific work of the fixing device for the low-voltage live-line exchange of the electric wire for the ammeter is as follows, when the low-voltage live-line exchange of the ammeter works, firstly, the first chuck and the second chuck of each clamp mouth are opened by holding a pair of handles, then, the fixing device is moved, so that all wires to be disassembled on the ammeter are moved into the jaws of the clamp mouths, and one wire is moved into one clamp mouth; secondly, releasing the handles, and clamping all the clamp mouths under the action of the torsion springs, so that the wires to be disassembled on the electric energy meter are clamped and fixed; third, because the wire of waiting to dismantle on the electric energy meter is fixed by the clamp mouth centre gripping, therefore can pull down all wires on the electric energy meter simultaneously once to need not to carry out insulating parcel to the wire. Similarly, when the wires are installed, firstly, the fixing device is held, the wires fixed on the fixing device are inserted into corresponding wiring holes of the replaced electric energy meter, secondly, each wire is locked in the wiring holes of the electric energy meter, then, the first clamping heads and the second clamping heads of the clamp nozzles can be opened by holding a pair of handles, and then the fixing device is taken out; therefore, the operation efficiency of live replacement of the electric energy meter can be effectively improved; moreover, the operation safety is good, and the problem of potential safety hazards caused by line-to-line contact of the phase line on the electric energy meter in the current operation process of live replacement of the electric energy meter can be effectively solved.
Preferably, the upper surface of one clamping part is provided with a T-shaped groove, the other clamping part is provided with a T-shaped sliding block matched with the T-shaped groove, and the pair of clamping parts are matched with the T-shaped groove through the T-shaped sliding block to realize relative sliding connection. Thus, the relative sliding stability of the pair of clamping portions can be ensured.
Preferably, the first clamping head is arranged on the upper surface of the clamping part where the T-shaped groove is located, the first clamping head consists of two clamping blocks, the two clamping blocks of the same first clamping head are distributed on two opposite sides of the notch of the T-shaped groove, and the second clamping head is located in the notch of the T-shaped groove. Thus, the stability of the clamp mouth for clamping the lead can be improved.
Preferably, the wire isolation and anti-drop device is arranged on one of the clamping parts, and comprises a plurality of vertical isolation plates which are sequentially distributed along the sliding direction of the clamping part, a connecting bottom plate which is used for connecting the vertical isolation plates into a whole, an isolation plate accommodating groove and a bottom plate accommodating groove which are arranged on one side surface of the clamping part, a guide through hole which is arranged on the clamping part, a transverse guide rod which slides along the guide through hole, a limiting block which is arranged on the transverse guide rod, a plurality of vertical shaft rods which are sequentially distributed along the sliding direction of the clamping part, a rotation stop lever which is fixed on the upper part of the vertical shaft rods, a driving gear which is fixed on the lower part of the vertical shaft rods, racks which are in one-to-one correspondence with the driving gears and a push plate which is positioned on one side of the clamping part,
the isolation plate accommodating grooves are in one-to-one correspondence with the vertical isolation plates and are used for accommodating the vertical isolation plates; an isolation groove with an upward opening is formed between any two adjacent isolation plate accommodating grooves, the isolation grooves are in one-to-one correspondence with the clamp mouths,
the axis of the guide through hole is parallel to the hinge shaft, one end of the guide through hole is communicated with the bottom plate accommodating groove, one end of the transverse guide rod is connected with the connecting bottom plate, the other end of the transverse guide rod is connected with the push plate,
the vertical shaft rod is rotatably arranged on the side surface of the clamping part, the vertical shaft rod and the isolation plate accommodating groove are positioned on the two opposite side surfaces of the clamping part, the vertical shaft rod corresponds to the pliers mouth one by one, the rotary stop lever is close to the upper surface of the clamping part, the driving gear is close to the lower surface of the clamping part, the rack is parallel to the transverse guide rod, one end of the rack is fixed on the push plate, the rack is meshed with the corresponding driving gear, and the push plate, the limiting block and the vertical shaft rod are positioned on the same side of the clamping part;
when the vertical isolation plate is accommodated in the isolation plate accommodating groove, the rotary blocking rod is parallel to the transverse guide rod, or the angle of intersection of the rotary blocking rod and the transverse guide rod is smaller than 5 degrees; when the limiting block is propped against the side surface of the clamping part, the rotary stop lever is perpendicular to the transverse guide rod, or the angle of intersection of the rotary stop lever and the transverse guide rod is 80-90 degrees.
In the application, in the operation process of low-voltage live-line exchange of the electric energy meter, after all the wires on the electric energy meter are simultaneously disassembled, although the wires on the electric energy meter are clamped and fixed through the clamp mouths, the problem that the phase line on the electric energy meter bumps the wires can not occur theoretically, but in the actual operation process, the problem that the wires bump the wires at the exposed positions among the wires due to the fact that the exposed positions of the wires are touched, the wires are bent is still generated; and the potential safety hazard of phase line wire collision is caused by touching the wire to make the wire deviate from the clamp mouth. In order to solve the problems, the proposal is provided with a wire isolation and anti-drop device, in particular,
when the electric energy meter is exchanged under low-voltage electrification, firstly, pushing the vertical isolation plate into the isolation plate accommodating groove to accommodate the vertical isolation plate in the isolation plate accommodating groove, wherein the rotating stop lever is parallel to the transverse guide rod at the moment, or the intersecting angle of the rotating stop lever and the transverse guide rod is smaller than 5 degrees; then, the first chuck and the second chuck of each clamp mouth are opened by holding a pair of handles, and then, the fixing device is moved, so that all wires to be disassembled on the electric energy meter are moved into the jaws of the clamp mouths, and one wire is moved into one clamp mouth; because the rotating stop lever is parallel to the transverse guide rod at the moment, or the intersecting angle of the rotating stop lever and the transverse guide rod is smaller than 5 degrees, the rotating stop lever can not block the lead from entering the jaw of the clamp mouth;
secondly, releasing the handles, and clamping all the clamp mouths under the action of the torsion springs, so that the wires to be disassembled on the electric energy meter are clamped and fixed;
thirdly, all the wires on the electric energy meter are detached at one time, and the wires do not need to be subjected to insulation wrapping; after all the wires on the electric energy meter are disassembled, pushing out the vertical isolation plate through the push plate and the transverse guide rod until the limiting block is propped against the side surface of the clamping part, so that the exposed ends of the wires are contained in the corresponding isolation grooves, and the problem that the exposed parts among the wires are broken due to the fact that operators touch the exposed parts of the wires in the actual operation process is avoided; meanwhile, in the process that the push plate and the transverse guide rod push out the vertical isolation plate, the push plate drives the rack to move synchronously, the rack drives the driving gear, the vertical shaft rod and the rotary stop lever to rotate, when the limiting block is propped against the side face of the clamping part, the rotary stop lever is perpendicular to the transverse guide rod, or the angle of intersection of the rotary stop lever and the transverse guide rod is 80-90 degrees, so that the rotary stop lever is positioned above a wire in a corresponding clamp mouth, the rotary stop lever is perpendicular to the wire, or the angle of intersection of the rotary stop lever and the wire is 80-90 degrees (the wire is approximately parallel to the hinge shaft), and therefore the wire can be blocked through the rotary stop lever, the wire is prevented from moving upwards from the clamp mouth to be separated, and the problem that the wire is separated from the clamp mouth by the upward movement of the clamp mouth due to touching is avoided, and potential safety hazards of a phase line are generated.
When a wire is installed, firstly, pushing the vertical isolation plate into the isolation plate accommodating groove to enable the vertical isolation plate to be accommodated in the isolation plate accommodating groove, wherein the rotating stop lever is parallel to the transverse guide rod at the moment, or the intersecting angle of the rotating stop lever and the transverse guide rod is smaller than 5 degrees; then the fixing device is held, the wires fixed on the fixing device are inserted into the corresponding wiring holes of the replaced electric energy meter, the wires are locked in the wiring holes of the electric energy meter, then the first clamping heads and the second clamping heads of the clamp mouths can be opened by holding a pair of handles, and then the fixing device is taken out.
In summary, the wire isolation and anti-drop device of the scheme can effectively solve the problem that the wire is bent due to touching the exposed part of the wire to generate a wire collision at the exposed part between wires in the actual operation process under the condition that the operation of low-voltage live-line electric energy meter replacement is not affected; and the potential safety hazard of phase line wire collision is caused by touching the wire to make the wire deviate from the clamp mouth.
Preferably, the push plate is provided with a magnet, the side surface of the clamping part where the wire isolation and anti-drop device is located is also provided with a magnet, and when the limiting block is propped against the side surface of the clamping part, the magnet on the push plate is attracted with the magnet on the clamping part. Therefore, after all the leads on the electric energy meter are disassembled, the vertical isolation plate is pushed out through the push plate and the transverse guide rod until the limiting block abuts against the side face of the clamping part, and the magnets on the push plate are attracted with the magnets on the clamping part, so that the vertical isolation plate and the rotary stop lever are kept in the current state.
Preferably, a plurality of containing openings are formed in the lower portion of the side face of the clamping portion where the vertical shaft rod is located, the containing openings are in one-to-one correspondence with the racks, and the racks and the corresponding driving gears are partially extended into the corresponding containing openings.
Preferably, the vertical isolation plates are parallel, and the vertical isolation plates are distributed at equal intervals along the sliding direction of the clamping part.
Preferably, the side surface of the first chuck facing the corresponding second chuck is provided with an arc-shaped clamping groove, and the side surface of the second chuck facing the corresponding first chuck is provided with an arc-shaped clamping groove.
Preferably, the clamping part where the first clamping head is positioned is fixed on a handle.
Preferably, the clamping part where the first chuck is located is fixed on a handle through a bolt.
Preferably, the first chucks are sequentially and equidistantly distributed along the sliding direction of the clamping portion, and the second chucks are sequentially and equidistantly distributed along the sliding direction of the clamping portion.
Preferably, the first chuck and the clamping part where the first chuck is located are of an integrated structure, and the second chuck and the clamping part where the second chuck is located are of an integrated structure.
The beneficial effects of the application are as follows: not only can the operation efficiency of live replacement of the electric energy meter be effectively improved; moreover, the operation safety is good, and the problem of potential safety hazards caused by line-to-line contact of the phase line on the electric energy meter in the current operation process of live replacement of the electric energy meter can be effectively solved.
Drawings
Fig. 1 is a schematic view showing a structure of a fixing device for low-voltage live-line exchange of electric wires for an electric meter according to the present application.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic cross-sectional view of the structure at A-A in fig. 1.
Fig. 4 is a side view of fig. 1.
Fig. 5 is a plan view showing the fixing device for low-voltage live-line exchange of electric wires for an electric meter according to the present application in actual use.
In the figure:
a handle 1, a lower grip handle 1.1, an upper connecting part 1.2;
a hinge shaft 2;
a torsion spring 3;
clamping parts 4a and 4b, strip-shaped holes 4.1 and T-shaped sliding blocks 4.2;
a jaw 5, a first chuck 5.1 and a second chuck 5.2;
a slide bar 6;
the wire isolation and anti-drop device 7, the push plate 7.0, the vertical isolation plate 7.1, the connecting bottom plate 7.2, the transverse guide rod 7.3, the limiting block 7.4, the vertical shaft lever 7.5, the rotary stop lever 7.6, the driving gear 7.7, the rack 7.8, the magnet 7.9 and the isolation groove 7.10;
and a wire 8.
Detailed Description
For the purpose of making the technical solution embodiment, the technical solution and the advantages of the present application more apparent, the technical solution of the embodiment of the present application will be clearly explained and illustrated below with reference to the accompanying drawings, but the following embodiment is only a preferred embodiment of the present application, not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present application.
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present solution and are not to be construed as limiting the solution of the present application.
These and other aspects of embodiments of the application will be apparent from and elucidated with reference to the description and drawings described hereinafter. In the description and drawings, particular implementations of embodiments of the application are disclosed in detail as being indicative of some of the ways in which the principles of embodiments of the application may be employed, but it is understood that the scope of the embodiments of the application is not limited correspondingly. On the contrary, the embodiments of the application include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.
In the description of the present application, it should be understood that the terms "thickness," "upper," "lower," "horizontal," "top," "bottom," "inner," "outer," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present application. In the description of the present application, the meaning of "a plurality" means at least two, for example, two, three, etc., unless explicitly defined otherwise, the meaning of "a number" means one or more.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
First embodiment: as shown in fig. 1 and 2, a fixing device for low-voltage live-line exchange of electric wires for an ammeter comprises a pair of handles 1 and a clamp head assembly. In this embodiment, a pair means two. The pair of handles are connected in a hinged manner through a hinge shaft 2, and a torsion spring 3 is arranged on the hinge shaft. The handle comprises a lower holding handle 1.1 and an upper connecting part 1.2, and the lower holding handle and the upper connecting part are positioned at two sides of the hinge shaft.
The clamp head assembly comprises a pair of clamping parts 4a and 4b which are connected in a sliding manner, wherein one clamping part is provided with a plurality of first clamping heads 5.1, and the first clamping heads are sequentially distributed along the sliding direction of the clamping part; the other clamping part is provided with a plurality of second chucks 5.2 which are in one-to-one correspondence with the first chucks, and the second chucks are sequentially distributed along the sliding direction of the clamping part. The sliding direction of the clamping part is perpendicular to the hinge shaft. One clamping part of the pair of clamping parts is fixed on a handle, and in particular, the other clamping part of the pair of clamping parts is fixed on an upper connecting part of the handle; the other clamping part is provided with a bar-shaped hole 4.1, a sliding rod 6 sliding along the bar-shaped hole is arranged in the bar-shaped hole, and the sliding rod is parallel to the hinging shaft. In this embodiment, the length direction of the bar-shaped hole is perpendicular to the sliding direction of the clamping portion. The sliding rod is fixed on the other handle, in particular, the sliding rod is fixed on the upper connecting part of the other handle. Each first clamping head and the corresponding second clamping head respectively form a clamp mouth 5 for clamping the electric wire. The torsion spring is used for providing elastic force so as to enable the clamp mouth to clamp.
In this embodiment, the clamping portion where the first chuck is located is fixed on a handle, and specifically, the clamping portion where the first chuck is located is fixed on a handle through a bolt.
The specific work of the fixing device for the low-voltage live-line exchange of the electric wire for the ammeter in the embodiment is as follows, firstly, as shown in fig. 5, when the low-voltage live-line exchange of the ammeter is carried out, the first chuck and the second chuck of each clamp mouth are opened by holding a pair of handles, then, the fixing device is moved, so that all wires 8 to be disassembled on the ammeter are moved into the jaws of the clamp mouths, and one wire is moved into one clamp mouth; secondly, releasing the handles, and clamping all the clamp mouths under the action of the torsion springs, so that the wires to be disassembled on the electric energy meter are clamped and fixed; third, because the wire of waiting to dismantle on the electric energy meter is fixed by the clamp mouth centre gripping, therefore can pull down all wires on the electric energy meter simultaneously once to need not to carry out insulating parcel to the wire.
Similarly, when the lead is installed, the fixing device is held, and the lead fixed on the fixing device is inserted into a corresponding wiring hole of the replaced electric energy meter; secondly, locking each wire in a wiring hole of the electric energy meter, then, opening a first chuck and a second chuck of each clamp mouth by holding a pair of handles, and then taking out the fixing device; therefore, the operation efficiency of live replacement of the electric energy meter can be effectively improved; moreover, the operation safety is good, and the problem of potential safety hazards caused by line-to-line contact of the phase line on the electric energy meter in the current operation process of live replacement of the electric energy meter can be effectively solved.
Further, as shown in fig. 2 and 4, the upper surface of one clamping part is provided with a T-shaped groove, and one end of the T-shaped groove is opened; the other clamping part is provided with a T-shaped sliding block 4.2 matched with the T-shaped groove, and the pair of clamping parts are matched with the T-shaped groove through the T-shaped sliding block to realize relative sliding connection. Thus, the relative sliding stability of the pair of clamping portions can be ensured.
The first clamping head 5.1 is arranged on the upper surface of the clamping part where the T-shaped groove is located, and consists of two clamping blocks which are symmetrically distributed on two opposite sides of the notch of the T-shaped groove; the second collet 5.2 is located in the slot opening of the T-shaped slot, in particular the second collet is arranged on the T-shaped slider. Thus, the stability of the clamp mouth for clamping the lead can be improved.
The first clamping head and the clamping part where the first clamping head is located are of an integrated structure, and the second clamping head and the clamping part where the second clamping head is located are of an integrated structure.
Further, the side surface of the first chuck facing the corresponding second chuck is provided with an arc-shaped clamping groove, and the side surface of the second chuck facing the corresponding first chuck is provided with an arc-shaped clamping groove. Thus, the stability of the clamp mouth for clamping the lead can be improved.
Further, each first chuck is distributed at equal intervals along the sliding direction of the clamping part, and each second chuck is distributed at equal intervals along the sliding direction of the clamping part.
Further, as shown in fig. 1, 2, 3 and 4, the fixing device for low-voltage live-line exchange of electric wires for the ammeter further comprises a wire isolation and anti-drop device 7. The wire isolation and anti-drop device is arranged on one of the clamping parts, and in the embodiment, the wire isolation and anti-drop device is arranged on the clamping part where the first clamping head is arranged.
The wire isolation and anti-drop device 7 comprises a plurality of vertical isolation plates 7.1 which are sequentially distributed along the sliding direction of the clamping part, a connecting bottom plate 7.2 which is used for connecting the vertical isolation plates into a whole, an isolation plate accommodating groove and a bottom plate accommodating groove which are arranged on one side surface of the clamping part, a guide through hole which is arranged on the clamping part, a transverse guide rod 7.3 which is slid along the guide through hole, a limiting block 7.4 which is arranged on the transverse guide rod, a plurality of vertical shaft rods 7.5 which are sequentially distributed along the sliding direction of the clamping part, a rotating stop lever 7.6 which is fixed on the upper part of the vertical shaft rods, a driving gear 7.7 which is fixed on the lower part of the vertical shaft rods, racks 7.8 which are in one-to-one correspondence with the driving gear and a push plate 7.0 which is positioned on one side of the clamping part.
The division board holding groove corresponds to the vertical division board one by one for hold vertical division board. The bottom plate accommodating groove is used for accommodating the connecting bottom plate. Each vertical isolation plate is parallel, and each vertical isolation plate is distributed at equal intervals along the sliding direction of the clamping part. Isolation grooves 7.10 with upward openings are formed between any two adjacent isolation plate accommodating grooves, and the isolation grooves correspond to the clamp mouths one by one.
The axis of the guide through hole is parallel to the hinge shaft, one end of the guide through hole is communicated with the bottom plate accommodating groove, one end of the transverse guide rod is connected with the connecting bottom plate, and the other end of the transverse guide rod is connected with the push plate.
The vertical shaft rod is rotatably arranged on the side face of the clamping part, and the vertical shaft rod and the isolation plate accommodating groove are positioned on the two opposite side faces of the clamping part. The vertical shaft rod extends from the upper surface of the clamping part to the lower surface, and is perpendicular to the hinge shaft. The vertical shaft rods are in one-to-one correspondence with the clamp mouths, the rotary stop lever is close to the upper surface of the clamping part, and the driving gear is close to the lower surface of the clamping part. The rack is parallel to the transverse guide rod, one end of the rack is fixed on the push plate, and the rack is meshed with the corresponding driving gear. The push plate, the limiting block and the vertical shaft lever are located on the same side of the clamping portion, and in the embodiment, the push plate is parallel to the sliding direction of the clamping portion.
As shown in fig. 2 and 3, when the vertical partition is accommodated in the partition accommodating groove, the rotation stop lever is parallel to the lateral guide rod, or the angle at which the rotation stop lever intersects the lateral guide rod is less than 5 degrees. As shown in fig. 5, when the limiting block abuts against the side face of the clamping part, the rotation stop lever is perpendicular to the transverse guide rod, or the intersection angle of the rotation stop lever and the transverse guide rod is 80-90 degrees.
In the application, in the operation process of low-voltage live-line exchange of the electric energy meter, after all the wires on the electric energy meter are simultaneously disassembled, although the wires on the electric energy meter are clamped and fixed through the clamp mouths, the problem that a phase line on the electric energy meter bumps wires can not occur theoretically, in the actual operation process, the problem that the wires bump wires at the exposed positions among the wires due to the fact that the exposed positions of the wires are touched, the wires are bent is generated; and the potential safety hazard of phase line wire collision is caused by touching the wire to make the wire deviate from the clamp mouth. In order to solve the problems, the proposal is provided with a wire isolation and anti-drop device, in particular,
when the electric energy meter is exchanged under low-voltage electrification, firstly, as shown in fig. 2 and 3, pushing the vertical isolation plate into the isolation plate accommodating groove to enable the vertical isolation plate to be accommodated in the isolation plate accommodating groove, wherein the rotating stop lever is parallel to the transverse guide rod at the moment, or the intersecting angle of the rotating stop lever and the transverse guide rod is smaller than 5 degrees; then, the first chuck and the second chuck of each clamp mouth are opened by holding a pair of handles, and then, the fixing device is moved, so that all wires to be disassembled on the electric energy meter are moved into the jaws of the clamp mouths, and one wire is moved into one clamp mouth; because the rotating stop lever is parallel to the transverse guide rod at the moment, or the intersecting angle of the rotating stop lever and the transverse guide rod is smaller than 5 degrees, the rotating stop lever can not block the lead from entering the jaw of the clamp mouth;
secondly, releasing the handles, and clamping all the clamp mouths under the action of the torsion springs, so that the wires to be disassembled on the electric energy meter are clamped and fixed;
thirdly, all the wires on the electric energy meter are detached at one time, and the wires do not need to be subjected to insulation wrapping; as shown in fig. 5, after all the wires on the electric energy meter are disassembled, the vertical isolation plate is pushed out through the push plate and the transverse guide rod until the limiting block is propped against the side surface of the clamping part, so that the exposed ends of the wires are contained in the corresponding isolation grooves, and the problem that the exposed parts among the wires are broken due to the fact that operators touch the exposed parts of the wires in the actual operation process is avoided; meanwhile, in the process that the push plate and the transverse guide rod push out the vertical isolation plate, the push plate drives the rack to move synchronously, the rack drives the driving gear, the vertical shaft rod and the rotary stop lever to rotate, when the limiting block is propped against the side face of the clamping part, the rotary stop lever is perpendicular to the transverse guide rod, or the angle of intersection of the rotary stop lever and the transverse guide rod is 80-90 degrees, so that the rotary stop lever is positioned above a wire in a corresponding clamp mouth, the rotary stop lever is perpendicular to the wire, or the angle of intersection of the rotary stop lever and the wire is 80-90 degrees (the wire is approximately parallel to the hinge shaft), and therefore the wire 8 can be blocked through the rotary stop lever, the wire is prevented from moving upwards from the clamp mouth to be separated, and the problem that the wire is separated from the clamp mouth by the upward movement of the clamp mouth to generate potential safety hazards of a phase line is avoided.
When a wire is installed, firstly, pushing the vertical isolation plate into the isolation plate accommodating groove to enable the vertical isolation plate to be accommodated in the isolation plate accommodating groove, wherein the rotating stop lever is parallel to the transverse guide rod at the moment, or the intersecting angle of the rotating stop lever and the transverse guide rod is smaller than 5 degrees; then the fixing device is held, the wires fixed on the fixing device are inserted into the corresponding wiring holes of the replaced electric energy meter, the wires are locked in the wiring holes of the electric energy meter, then the first clamping heads and the second clamping heads of the clamp mouths can be opened by holding a pair of handles, and then the fixing device is taken out.
In summary, the wire isolation and anti-drop device of the scheme can effectively solve the problem that the wire is bent due to touching the exposed part of the wire to generate a wire collision at the exposed part between wires in the actual operation process under the condition that the operation of low-voltage live-line electric energy meter replacement is not affected; and the potential safety hazard of phase line wire collision is caused by touching the wire to make the wire deviate from the clamp mouth.
Further, as shown in fig. 2, a magnet 7.9 is arranged on the push plate, a magnet is also arranged on the side surface of the clamping part where the wire isolation and anti-drop device is located, and when the limiting block abuts against the side surface of the clamping part, the magnet on the push plate is attracted with the magnet on the clamping part. Therefore, after all the leads on the electric energy meter are disassembled, the vertical isolation plate is pushed out through the push plate and the transverse guide rod until the limiting block abuts against the side face of the clamping part, and the magnets on the push plate are attracted with the magnets on the clamping part, so that the vertical isolation plate and the rotary stop lever are kept in the current state.
The side lower part of the clamping part where the vertical shaft rod is arranged is provided with a plurality of containing openings, the containing openings are in one-to-one correspondence with the racks, and the racks and the corresponding driving gears are provided with a part of the corresponding containing openings.
The foregoing description is only a preferred embodiment of the present application, and is not intended to limit the present application, and any simple modification, variation and equivalent transformation of the above embodiment according to the technical substance of the present application still fall within the scope of the technical solution of the present application.
Claims (6)
1. The utility model provides a fixing device of low pressure live change ammeter wire which characterized in that includes:
the pair of handles are hinged and connected through a hinge shaft, and a torsion spring is arranged on the hinge shaft;
the clamp head assembly comprises a pair of clamping parts which are connected in a sliding manner, wherein one clamping part is provided with a plurality of first chucks, and each first chuck is sequentially distributed along the sliding direction of the clamping part; the other clamping part is provided with a plurality of second chucks which are in one-to-one correspondence with the first chucks, each second chuck is sequentially distributed along the sliding direction of the clamping part, and each first chuck and the corresponding second chuck respectively form a clamp mouth for clamping the electric wire;
one clamping part of the pair of clamping parts is fixed on one handle, the other clamping part is provided with a strip-shaped hole, a sliding rod sliding along the strip-shaped hole is arranged in the strip-shaped hole, the sliding rod is parallel to the hinge shaft, the sliding rod is fixed on the other handle, the clamping parts of the first clamping head and the first clamping head are in an integrated structure, and the clamping parts of the second clamping head and the second clamping head are in an integrated structure;
the wire isolation and anti-drop device is arranged on one of the clamping parts and comprises a plurality of vertical isolation plates which are sequentially distributed along the sliding direction of the clamping part, a connecting bottom plate which is used for connecting the vertical isolation plates into a whole, an isolation plate accommodating groove and a bottom plate accommodating groove which are arranged on one side surface of the clamping part, a guide through hole which is arranged on the clamping part, a transverse guide rod which slides along the guide through hole, a limiting block which is arranged on the transverse guide rod, a plurality of vertical shaft rods which are sequentially distributed along the sliding direction of the clamping part, a rotation stop lever which is fixed on the upper part of the vertical shaft rods, a driving gear which is fixed on the lower part of the vertical shaft rods, racks which are in one-to-one correspondence with the driving gear and a push plate which is positioned on one side of the clamping part,
the isolation plate accommodating grooves are in one-to-one correspondence with the vertical isolation plates and are used for accommodating the vertical isolation plates; an isolation groove with an upward opening is formed between any two adjacent isolation plate accommodating grooves, the isolation grooves are in one-to-one correspondence with the clamp mouths,
the axis of the guide through hole is parallel to the hinge shaft, one end of the guide through hole is communicated with the bottom plate accommodating groove, one end of the transverse guide rod is connected with the connecting bottom plate, the other end of the transverse guide rod is connected with the push plate,
the vertical shaft rod is rotatably arranged on the side surface of the clamping part, the vertical shaft rod and the isolation plate accommodating groove are positioned on the two opposite side surfaces of the clamping part, the vertical shaft rod corresponds to the pliers mouth one by one, the rotary stop lever is close to the upper surface of the clamping part, the driving gear is close to the lower surface of the clamping part, the rack is parallel to the transverse guide rod, one end of the rack is fixed on the push plate, the rack is meshed with the corresponding driving gear, and the push plate, the limiting block and the vertical shaft rod are positioned on the same side of the clamping part;
when the vertical isolation plate is accommodated in the isolation plate accommodating groove, the rotary blocking rod is parallel to the transverse guide rod, or the angle of intersection of the rotary blocking rod and the transverse guide rod is smaller than 5 degrees; when the limiting block is propped against the side surface of the clamping part, the rotary stop lever is perpendicular to the transverse guide rod, or the angle of intersection of the rotary stop lever and the transverse guide rod is 80-90 degrees.
2. The fixing device for low-voltage live-line exchange of electric wires for electric meters according to claim 1, wherein the upper surface of one clamping part is provided with a T-shaped groove, the other clamping part is provided with a T-shaped slide block matched with the T-shaped groove, and the pair of clamping parts are matched with the T-shaped groove through the T-shaped slide block to realize relative sliding connection.
3. The fixing device for low-voltage live-line exchange of electric wires for electric meters according to claim 2, wherein the first clamping head is arranged on the upper surface of the clamping part where the T-shaped groove is located, the first clamping head consists of two clamping blocks, the two clamping blocks of the same first clamping head are distributed on two opposite sides of the notch of the T-shaped groove, and the second clamping head is positioned in the notch of the T-shaped groove.
4. The fixing device for low-voltage live-line exchange of electric wires for electric meters according to claim 1, 2 or 3, wherein the push plate is provided with a magnet, the side surface of the clamping part where the wire isolation and anti-drop device is located is also provided with a magnet, and when the limiting block is propped against the side surface of the clamping part, the magnet on the push plate is attracted with the magnet on the clamping part.
5. The fixing device for low-voltage live-line exchange of electric wires for electric meters according to claim 1, 2 or 3, wherein a plurality of accommodating openings are formed in the lower portion of the side face of the clamping portion where the vertical shaft rod is located, the accommodating openings are in one-to-one correspondence with the racks, and the racks and the corresponding driving gears are provided with a part extending into the corresponding accommodating openings.
6. The fixing device for low-voltage live-wire exchange of electric wires for electric meters according to claim 1, 2 or 3, wherein the vertical isolation plates are parallel, and the vertical isolation plates are sequentially equidistantly distributed along the sliding direction of the clamping part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110178605.XA CN113013797B (en) | 2021-02-09 | 2021-02-09 | Fixing device for low-voltage live-line exchange of electric wire for ammeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110178605.XA CN113013797B (en) | 2021-02-09 | 2021-02-09 | Fixing device for low-voltage live-line exchange of electric wire for ammeter |
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| CN113013797B true CN113013797B (en) | 2023-10-10 |
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| CN113013797A (en) | 2021-06-22 |
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