CN211151315U - Fuse handcart prompting device - Google Patents

Abstract

The fuse handcart prompting device comprises a handcart, a tulip contact, a contact arm insulator and an installation frame; the mounting frame is fixedly provided with an upper U-shaped clamp and a lower U-shaped clamp which are vertically inserted and pulled vertically to clamp the striker fuse through the upper vertical mounting plate and the lower vertical mounting plate; the ABC three-phase corresponding firing pin type fuses directly trigger three normally closed micro switches to act through firing pins so as to cut off a power supply circuit of the indicator lamp, and which phase is damaged is directly displayed through the on-off of the indicator lamp; and the signal leads of the three normally closed microswitches trigger the voice broadcasting module to alarm. The utility model realizes man-machine interaction; the structure is simple, the identification degree is high, the fault phase detection is accurate, the installation is convenient, and the maintenance cost is favorably reduced; the function is practical and superior; the product has more market competitiveness in the aspect of assembling convenience.

Description

Fuse handcart prompting device

Technical Field

The utility model particularly relates to a fuse handcart suggestion device.

Background

High-voltage vacuum circuit breakers play a role in protection and control of electrical equipment, such as overload and short-circuit, in high-voltage power supply and distribution systems. The fuse handcart is characterized in that when the current of a high-voltage power supply and distribution system exceeds a specified value, the fuse body is fused by heat generated by the fuse to rapidly cut off fault current, so that the accident is prevented from being enlarged, and the safe operation of the system is ensured; the method plays a great role in improving the safety and reliability of the power system.

Under the prior art, the use drawback of the fuse handcart disclosed by the notice number CN207588330U is as follows: triggering the microswitch by adopting a linkage device; the design of the linkage complicates the triggering of the microswitch; the structure is complex, the installation is inconvenient, and the cost is high; and mainly rely on the detection feedback that the generating line was arranged, when changing the fuse, can not accurately learn that looks is lossy, can't change alone to certain looks alone, need check one by one and get rid of, and the precision is not strong, and is inefficient. Further, a warning fuse with a striker is disclosed in publication No. CN 203799998U; triggering an alarm by adopting a fused constantan fuse and a spring catch; the constantan fuse is troublesome to replace after being fused, has low efficiency and is also influenced in overhauling convenience. Similarly, the fuse signalling device of the high-voltage current-limiting fuse disclosed in publication No. CN209016013U signals an alarm by the contact of the electrode breaking the second elastic insulating sheath with the electrolyte; the parts for sending alarm are complex, the structure is complex, the replacement and installation are inconvenient, and the maintenance efficiency is low. In contrast, the alarm triggering structure is more simplified, simple to install, convenient and visual to overhaul; when the fuse is replaced, the plug and the installation are convenient and quick, the alarm triggering device has a simple structure, and the maintenance is efficient; the replacement and assembly cost of parts is lower; and can the audio-visual suggestion which looks damages, need not to investigate one by one, realize the pertinence and change, improve maintenance efficiency, the fuse handcart suggestion device of reloading efficiency greatly. The following technical scheme is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem: the collision type fuse handcart prompting device is provided, a striking fuse firing pin directly presses a trigger microswitch to switch the microswitch from a normally closed state to a disconnected state, an indicator light circuit is cut off, and an indicator light is turned off to clearly indicate which phase is fused; the voice alarm function is combined, so that the maintenance efficiency is improved; the fuse is quickly installed and replaced by directly inserting and pulling the U-shaped clamp; the microswitch directly triggers the on-off switching of an indicator light by adopting a mode of interval impact type fuse firing pin near-end installation, manual reset and direct triggering to trigger voice alarm; the arrangement of middle trigger parts is omitted, and the structure is simplified; the replacement and maintenance efficiency is greatly improved; the replacement cost of the trigger device is controlled to be zero, and the secondary use can be recovered only by replacing the fuse.

The technical scheme includes that the fuse handcart prompting device comprises a handcart, a tulip contact, a contact arm insulator and an installation frame, and is characterized in that the installation frame comprises an upper vertical installation plate and a lower vertical installation plate which are vertically coplanar, the upper vertical installation plate and the lower vertical installation plate are respectively clamped with striker type fuses in a plug-in mode through upper U-shaped clamps and lower U-shaped clamps which are horizontally and fixedly installed, three normally closed microswitches are respectively and fixedly installed below strikers of the striker type fuses corresponding to ABC three phases one by one at intervals, the normally closed microswitches are horizontally and fixedly supported and installed below the handcart installation frame through L-shaped bent plates and fastening assemblies, the striker type fuses corresponding to the ABC three phases respectively correspond to switches of the three normally closed microswitches, switching actions of the normally closed microswitches are completed through direct extrusion point of the strikers of the three phases of the striker type fuses, power supply leads of the three normally closed microswitches are respectively connected in series with corresponding indicator lamps and then connected into a power supply loop in parallel, signal leads of the three normally closed microswitches are connected with an input end of a voice broadcasting module, an output.

The voice broadcasting module, the loudspeaker and the ABC three-phase corresponding indicator lamp are integrally and fixedly arranged on the same prompt display device shell; the shell of the prompt display device is fixedly mounted on a handcart outer shell of a handcart in a modularized fastening manner; the indicating lamps on the outer side of the shell of the prompt display device correspond to the detection circuits of the ABC three-phase striker type fuse respectively, and the character identifications of the A phase, the B phase and the C phase are printed below the indicating lamps corresponding to the ABC three phases on the outer side wall of the shell of the prompt display device correspondingly.

The prompt display device shell comprises a display interface shell and a main body shell; the display interface shell is provided with indicator lamps corresponding to ABC three phases and is provided with a horn sound-transmitting hole of a horn; a wiring terminal block is arranged on the back side of the main body shell; the wiring terminal block comprises a power supply wiring port for connecting a mains supply AC220V power supply; a voice broadcasting module, a power supply module, a driving module and a loudspeaker are arranged on the inner side of the main body shell; the left and right axisymmetric outer sides of the main body shell are tightly attached to the back side of the display interface shell and provided with a pair of mounting lug plates.

The L-shaped bent plate consists of a vertical plate body and a horizontal plate body which are integrally bent, wherein the outer side of the vertical plate body is fixedly connected with a lower U-shaped clamp which is used for clamping a striker type fuse in a plug-in mode, the inner side of the vertical plate body is fixedly connected with a lower vertical mounting plate, and the horizontal plate body is fixedly used for supporting the installation of the normally closed microswitch.

Compared with the prior art, the device can intuitively indicate which phase of A, B, C has a fault through the indicating lamp (D1/2/3) corresponding to each phase; the number of trigger parts of the microswitch is greatly simplified; the structure is simpler, and the maintenance and the replacement are more convenient and efficient; the working efficiency is improved; the installation steps are simplified; the maintenance cost of part replacement is reduced; only the replacement cost of the fuse is paid out, and the cost consumption of other parts is not needed; the alarm performance is enhanced by combining voice alarm; the advantages and the practicability are both achieved; the plug-in replacement mode of the fuse is convenient and fast; in the aspect of assembling the simple degree and reducing the replacement cost of parts, the market competitiveness of the product is improved.

Compared with the prior art, the utility model have following advantage:

1. when the bus bar is overloaded or short-circuited, one phase of current of A, B, C three phases is increased, the striker popped up after the striker type fuse is overloaded and fused, by means of the effective popping stroke of the striker, a direct pressing point triggers the action of normally closed micro-motion light-on, and a corresponding normally closed micro-motion light-on indicator lamp (D1/2/3) is extinguished to display the fault state; only the replacement cost of the fuse is paid out, and the cost consumption of other parts is not needed; the structure is simple, the manufacturing cost is low, and the installation, maintenance and overhaul are visual and convenient;

2. the normally closed microswitch is used for triggering an audio alarm by a signal lead led out outwards; the fault state can be known without staring at an indicator lamp; the fault state acquisition mode is more convenient, efficient, diversified and humanized; thereby achieving the purpose of timely replacement; the safety early warning real-time performance of the detection vehicle is improved;

3. according to the scheme, the live condition of A, B, C three phases can be accurately detected through the on and off of the indicator lamp (D1/2/3), and the good operation of the whole system is effectively protected;

4. the scheme is characterized by comprising the following steps in practical application: only the fuse is required to be replaced during maintenance, and the fuse is fixed in a plugging mode; the reset of the microswitch is directly reset by manual point pressing before the new firing pin type fuse is installed; replacement and maintenance can be conveniently and quickly completed; the installation is convenient, the superior real-time fault alarm performance and the product practicability are obtained, and the market competitiveness of the product is greatly improved.

Drawings

FIG. 1 is a front view of the assembly structure principle of the present invention;

fig. 2 is a right side view of the present invention in fig. 1;

FIG. 3 is a schematic view of the installation structure of the striker type fuse and the normally closed microswitch of the present invention;

FIG. 4 is a schematic view of the installation structure of a normally closed microswitch;

FIG. 5 is a schematic diagram of the trigger operation of the striker fuse and the normally closed microswitch;

fig. 6 is an overall external front view of the voice broadcast module modularly integrated and installed;

fig. 7 is a schematic diagram of a control circuit of the normally closed microswitch, the indicator light and the voice broadcasting module of the present invention;

FIG. 8 is a process flow diagram of a method of use of the present invention;

fig. 9 is an overall rear view of the voice broadcast module of fig. 6 installed in a modular integration manner;

fig. 10 is an overall right view of the voice broadcast module of fig. 6 installed in a modular integration manner;

fig. 11 is a left side view of the structure of the present invention shown in fig. 1;

fig. 12 is a wiring diagram of the detection circuit of the striker-type fuse of the present invention.

Detailed Description

Specific embodiments of the present invention will be described below with reference to fig. 1-12. It is to be understood that the following description of the embodiments is merely exemplary and not intended to limit the invention in any way.

The following examples are provided to facilitate a better understanding of the present invention, but are not intended to limit the present invention. The electroscopic experiment method and the electroscopic operation procedure in the following examples are a conventional electroscopic experiment method and a conventional electroscopic operation procedure unless otherwise specified. The materials for the members used in the following examples are commercially available unless otherwise specified. The control circuit in the following embodiments is implemented in a conventional control manner unless otherwise specified.

In the present invention, without the contrary explanation, it is understood that: the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", "disposed" and "provided" are to be interpreted broadly, e.g. as being either fixedly connected or detachably connected, or integrally connected. For example, they may be directly connected to each other or indirectly connected to each other through other intermediate members. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The alarm device comprises a handcart prompting device, a fuse, a loudspeaker, a normal-closed voice protection circuit, a micro-motion sound protection circuit, a micro-motion alarm circuit, a micro-sound protection circuit, a micro-motion alarm circuit, a micro-sound protection circuit, a micro-motion alarm circuit, a micro-sound protection circuit, a micro-motion alarm circuit, a micro-sound protection circuit, a micro-motion alarm circuit, a safety alarm circuit, a micro-motion alarm circuit, a micro-sound protection circuit, a safety alarm circuit, a micro-motion alarm circuit, a micro-sound protection circuit, a safety alarm circuit, a micro-sound protection circuit, a micro-motion alarm circuit, a safety alarm circuit, a safety alarm circuit, a safety alarm circuit, a safety.

On the basis of the above embodiment, the voice broadcasting module 11, the speaker 12 and the ABC three-phase corresponding indicator light 10 (as shown in fig. 2 and 6) are integrated and fixedly mounted on the same prompt display device housing 13; the modularized fastening installation and use requirements of the shell 13 of the prompt display device on the handcart outer shell of the handcart 1 are met. Namely, the prompt display device shell 13 is fixedly mounted on a handcart outer shell 14 of the handcart 1 in a modularized fastening manner; the indicating lamps 10 on the outer side of the shell 13 of the prompt display device correspond to the detection circuits of the ABC three-phase firing pin type fuses 6 respectively and are arranged in a one-to-one correspondence with the left and right arrangement sequence of the ABC three-phase firing pin type fuses 6 on the front side of the handcart 1, so that wiring errors are avoided when equipment is initially installed. And the corresponding A-phase, B-phase and C-phase character marks are printed below the ABC three-phase indicator lights 10 on the outer side wall of the shell 13 of the prompt display device correspondingly (as shown in FIG. 6), so that the corresponding striker type fuses 6 can be replaced by observing the on-off of the indicator lights.

On the basis of the above embodiments, the prompt display device housing 13 (see fig. 6, 9, and 10) includes a display interface housing 131 and a main body housing 132 (see fig. 10); the display interface shell 131 is fixedly arranged outside the handcart outer shell 14 of the handcart 1 for visual observation (as shown in fig. 6). The display interface shell 131 is provided with the indicator lamps 10 corresponding to ABC three phases and is provided with a loudspeaker sound-transmitting hole of a loudspeaker 12 so as to ensure that the volume is not lost; the rear side of the main body shell 132 is provided with a terminal strip 133 (as shown in the figure) so as to prompt the display device shell 13 to be integrally connected with integrated module installation wiring on trolleys of different models. The terminal block 133 includes a connection port number 5 and a connection port number 6 (see fig. 9) for connecting to a power connection port 1331 (see fig. 9) of the utility power AC220V, and the connection port is a power connection port 1331 for connecting to a power supply AC 220V. The voice broadcasting module 11, a necessary 220-5V power conversion module, a driving module and a loudspeaker 12 are arranged on the inner side of the main body shell 132; the main body shell 132 has a pair of mounting lugs 134 disposed on the left and right sides of the main body shell 132 and attached to the back side of the display interface shell 131, so as to fasten and fix the display interface shell 131 to the outer side of the handcart outer shell 14. Specifically, the terminal block 133 (as shown in fig. 9) further includes a connection port at the position of reference number 2/3/4 for connecting an ABC three-phase sensor, and is used for connecting an ABC three-phase grounding closing line; the terminal block 133 further includes reserved contact connection ports at the serial numbers 7, 8, 9, and 10 for connecting to the background remote monitoring, so as to expand the use of the background intelligent monitoring function of the handcart.

On the basis of the above embodiment, the L-shaped bent plate 7 is composed of a vertical plate 7-1 and a horizontal plate 7-2 which are integrally bent and formed (as shown in fig. 4), a lower U-shaped clamp 6-2 for clamping the striker-type fuse 6 is fixedly connected to the outer side of the vertical plate 7-1 in a plug-in and pull-out manner, such as a welded fixed connection manner or a fastening connection manner, a lower vertical mounting plate 52 is fixedly connected to the inner side of the vertical plate 7-1, and the horizontal plate 7-2 fixedly supports the installation of the normally closed microswitch 9. specifically, the normally closed microswitch 9 is fixedly installed by a screw and nut fastening manner after penetrating through a mounting hole formed in the horizontal plate 7-2.

The utility model discloses a theory of operation: (see figure 1) when the tulip contact is inserted into and occluded with a static contact of the high-voltage power supply and distribution system to be tested; current passes through the contact arm; the contact arm is electrically connected with the striker type fuse; if the equipment is in normal operation: the ABC three-phase corresponding indicator lamp (D1/2/3) is normally on (as shown in FIG. 7); if one or three of the phases fails: after the fuse of the striker type fuse of a certain phase or three phases is fused, the striker of the striker type fuse automatically pops up and presses a normally closed microswitch (CK1/2/3) by a pressing point, and the normally closed microswitch is rapidly switched from a normally closed state to an open state; the indicator lamp (D1/2/3) (shown in FIGS. 6 and 7) is turned off immediately corresponding to the phase, thereby clearly indicating which damage the ABC three phases are damaged at all, so as to quickly judge and repair the striker fuse 6 at the new position (shown in FIG. 11); not only that; when the normally closed microswitch acts, the voice broadcasting Module (MK)11 is triggered (as shown in fig. 7) to send out voice prompt; voice broadcast Module (MK)11 reports an alarm according to predetermineeing voice broadcast under voice chip (B)111 internal program sets up, need not personnel to look closely pilot lamp (D1/2/3) for a long time, also can indicate the trouble of distant place staff's equipment. After the fault occurs, the maintainer moves to the front of the equipment and replaces the striker fuse 6 corresponding to the extinguished indicator lamp according to the on and off of the indicator lamp (D1/2/3); manually clicking and resetting a corresponding normally closed microswitch 9 right below the new striker type fuse to recover to a normally closed state; after the power is on, the trolley works normally, and the indicator light is turned on again.

In fig. 7, the electronic components are described as follows: CK1/2/3 refers to three normally closed micro-switches 9 in the present invention; d1/2/3 indicates three indicator lights 10 in the present invention; MK means voice announcement module 111; c denotes a capacitor; r represents a resistor; b refers to a voice chip.

With respect to fig. 8: the utility model has the flow when in use, after being electrified, the D1/2/3 indicator light is always on under the normal working state of the trolley; if a fault occurs, the striker trigger spring in the corresponding fuse tube of the striker fuse ejects the striker, and the striker 61 presses the corresponding normally closed microswitch CK 1/2/3; the normally closed point of the extruded microswitch is switched to a normally open point, and the power supply circuit of each corresponding D1/2/3 indicator light is disconnected; the indicator light can be turned off according to the fault point; simultaneously triggering voice prompt alarm; and the voice broadcasting Module (MK)11 stops alarming until the capacitor C is used up. The personnel timely process and replace the new firing pin type fuse and manually click the reset microswitch to return to the normally closed point; after the electricity is switched on, the trolley works normally, and the D1/2/3 indicator light is normally on.

From the above description it can be found that: when the bus bar is overloaded or short-circuited, one of A, B, C three-phase currents is increased, the striker popped up after the striker type fuse is overloaded and fused, with the help of the effective pop-up stroke of the striker, the direct extrusion point is pressed to trigger the action of normally closed micro-motion light-on, and a corresponding normally closed micro-motion light-on indicator lamp (D1/2/3) is extinguished to display the fault state; only the replacement cost of the fuse is paid out, and the cost consumption of other parts is not needed; simple structure, low manufacturing cost, and intuitive and convenient installation, maintenance and overhaul. Secondly, the signal lead led out from the normally closed microswitch of the utility model triggers the sound alarm; the fault state can be known without staring at an indicator lamp; the fault state acquisition mode is more convenient, efficient, diversified and humanized; thereby achieving the purpose of timely replacement; the safety early warning real-time performance of the detection vehicle is improved. Furthermore, the utility model discloses a bright going out of pilot lamp (D1/2/3), the electrified situation that can accurate detection goes out A, B, C three-phase effectively protects entire system's good operation.

Finally, the utility model discloses in the aspect of practical application: only the fuse is required to be replaced during maintenance, and the fuse is fixed in a plugging mode; the reset of the microswitch is directly reset by manual point pressing before the new firing pin type fuse is installed; replacement and maintenance can be conveniently and quickly completed; the installation is convenient, the superior real-time fault alarm performance and the product practicability are obtained, and the market competitiveness of the product is greatly improved.

In summary, the utility model is designed from a safer, simpler and more intelligent perspective, and realizes human-computer interaction; the structure is simple, the identification degree is high, the manufacturing cost is low, the alarm function is more optimized, and the safety and reliability of the power system are improved; A. b, C the detection of the three-phase electrified condition is accurate, so that the replacement can be realized in time; the alarm mode is diversified, real-time, visual and humanized; replacement and maintenance can be done more conveniently and rapidly; the installation is convenient, and the maintenance cost is reduced; the function is practical and superior; the product has more market competitiveness in the aspect of assembling convenience.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims (4)

1. A handcart prompting device comprises a handcart (1), a tulip contact (2), a contact arm (3), a contact arm insulator (4) and an installation frame (5), and is characterized in that the installation frame (5) comprises an upper vertical installation plate (51) and a lower vertical installation plate (52) which are vertically coplanar up and down, the upper vertical installation plate (51) and the lower vertical installation plate (52) are respectively vertically inserted and pulled through upper U-shaped clamps (6-1 and 6-2) which are horizontally and fixedly installed, three normally closed microswitches (9) are respectively and correspondingly and fixedly installed below striker rods (61) of the striker type fuses (6) corresponding to ABC three phases one by one at intervals, the normally closed microswitches (9) are respectively and fixedly installed below the installation frame (5) of the handcart (1) through L-shaped bent plates (7) and fastening assemblies (8), the striker type fuses (6) corresponding to ABC three normally closed microswitches (9) are respectively and fixedly supported and installed below the installation frame (5) through the L-shaped bent plates, the voice microswitches (9) are respectively corresponding to the striker type fuses (6) corresponding to the three normally closed microswitches (9) which are respectively connected with a voice broadcasting module, the voice broadcasting module is connected with a voice broadcasting module, the voice broadcasting module is connected with the voice broadcasting module, the voice broadcasting module is connected with the voice broadcasting module, and the voice broadcasting module.

2. The fuse handcart prompting device of claim 1, characterized in that: the voice broadcasting module (11), the loudspeaker (12) and the ABC three-phase corresponding indicator light (10) are integrally and fixedly arranged on the same prompt display device shell (13); the prompt display device shell (13) is fixedly mounted on a handcart outer shell (14) of the handcart (1) in a modularized fastening manner; the indicating lamps (10) on the outer side of the prompt display device shell (13) correspond to the detection circuits of the ABC three-phase striker type fuse (6) respectively, and the character marks of the A phase, the B phase and the C phase are printed below the indicating lamps (10) corresponding to the ABC three phases on the outer side wall of the prompt display device shell (13) correspondingly.

3. The fuse handcart prompting device of claim 2, characterized in that: the prompt display device shell (13) comprises a display interface shell (131) and a main body shell (132); the display interface shell (131) is provided with indicator lamps (10) corresponding to ABC three phases and is provided with a loudspeaker sound-transmitting hole of a loudspeaker (12); a wiring terminal strip (133) is arranged on the back side of the main body shell (132); the terminal block (133) comprises a power connection port (1331) for connecting a mains AC220V power supply; a voice broadcasting module (11), a power supply module and a loudspeaker (12) are arranged on the inner side of the main body shell (132); the left and right axisymmetric outer sides of the main body shell (132) are tightly attached to the back side of the display interface shell (131) and provided with a pair of mounting lug plates (134).

4. The fuse handcart prompting device according to claim 1, characterized in that the L-shaped bent plate (7) is composed of a vertical plate body (7-1) and a horizontal plate body (7-2) which are integrally bent, a lower U-shaped clamp (6-2) for clamping the striker fuse (6) in a plug-in type is fixedly connected to the outer side of the vertical plate body (7-1), a lower vertical mounting plate (52) is fixedly connected to the inner side of the vertical plate body (7-1), and the horizontal plate body (7-2) fixedly supports the installation of the normally closed microswitch (9).

Images