CN113112747B - Modularized near-electricity early warning system - Google Patents
Modularized near-electricity early warning system Download PDFInfo
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- CN113112747B CN113112747B CN202110354391.7A CN202110354391A CN113112747B CN 113112747 B CN113112747 B CN 113112747B CN 202110354391 A CN202110354391 A CN 202110354391A CN 113112747 B CN113112747 B CN 113112747B
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- 206010014357 Electric shock Diseases 0.000 abstract description 4
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
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- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B1/00—Hats; Caps; Hoods
- A42B1/24—Hats; Caps; Hoods with means for attaching articles thereto, e.g. memorandum tablets or mirrors
- A42B1/242—Means for mounting detecting, signalling or lighting devices
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
Abstract
The invention discloses a modularized near-electricity early warning system, which comprises: the warning unit comprises a warning module and a first electric wire, one end of the first electric wire is connected with the warning module, and the other end of the first electric wire forms a wiring terminal; the main control unit comprises a control module and an induction detection module connected with the control module, wherein the control module is also connected with a second electric wire, and the other end of the second electric wire also forms a wiring terminal; and a wiring unit connected between the terminal of the first wire and the terminal of the second wire so that detachable electrical connection is formed between the first wire and the second wire. The near-electricity early warning system has a near-electricity early warning function, can be applied to protective equipment of workers, and can prompt workers of electric shock risk by sound when workers are near-electricity.
Description
Technical Field
The invention relates to the technical field of near-electricity induction, in particular to a modularized near-electricity early warning system.
Background
The safety helmet is a cap which has a protective effect on the head of a person, which is damaged by falling objects and other specific factors, and the main structure of the safety helmet generally comprises a cap shell, a cap liner, a chin strap, accessories and the like. The existing safety helmet has a single protection function and can only be used for protecting the collision risk of falling objects, and has no other safety pre-warning/warning function, so that the existing safety helmet is only a protection treatment means after the occurrence of safety accidents and cannot play a role in preventing the occurrence of the safety accidents. However, the electric construction/maintenance site is often complicated in working condition, potential safety hazards are more, especially the safety risk of false electric shock is particularly prominent, and the existing safety helmet has no near-electricity early warning function, so that a safe construction environment cannot be provided for workers working near electricity.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The present invention has been made in view of the problems occurring in the prior art.
It is therefore an object of the present invention to provide a modular near-electrical early warning system comprising: the warning unit comprises a warning module and a first electric wire, one end of the first electric wire is connected with the warning module, and the other end of the first electric wire forms a wiring terminal; the main control unit comprises a control module and an induction detection module connected with the control module, wherein the control module is also connected with a second electric wire, and the other end of the second electric wire also forms a wiring terminal; and a wiring unit connected between the terminal of the first wire and the terminal of the second wire so that detachable electrical connection is formed between the first wire and the second wire.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the warning module comprises a light source warning module and a sound source warning module, and the light source warning module and the sound source warning module are connected with a second electric wire of the main control unit through the first electric wire; the induction detection module can acquire monitoring signals in real time and send the monitoring signals to the control module; when the control module judges that the monitoring signal from the induction detection module reaches a preset threshold, the control module controls the warning module to make corresponding response action.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the control module comprises a filter, an amplifier and a comparator which are connected in sequence; the sensing detection module is connected with the filter, and monitoring signals from the sensing detection module are transmitted to the comparator after being subjected to signal filtering processing of the filter and signal amplifying processing of the amplifier.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the control module is connected with a voltage stabilizing circuit and a gear adjusting circuit; the voltage stabilizing circuit is provided with a boosting resistor; the gear adjusting circuit comprises a plurality of branches connected in parallel, and each branch is provided with a corresponding resistor and an on-off device connected with the resistor in series; different starting voltages can be obtained by controlling the on-off states of all on-off devices on the gear adjusting circuit to serve as preset thresholds of the control module; the monitoring signal collected by the induction detection module is an induction voltage.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the induced voltage and the starting voltage are compared through the comparator, when the induced voltage reaches the starting voltage, a 4KHz alarm signal is output by the control module, and the light source warning module and the sound source warning module are started through the alarm signal.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the gear adjusting circuit comprises five branches connected in parallel; each branch is provided with a resistor with different specifications and a switch connected with the resistor in series.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the light source warning module adopts a light emitting diode; the sound source warning module adopts a buzzer.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the light source warning module and the sound source warning module are mutually connected in parallel.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the warning unit further comprises a connecting column, a first gland detachably connected to one end of the connecting column and a second gland detachably connected to the other end of the connecting column; the first gland presses the light source warning module on one end face of the connecting column; the second gland presses the sound source warning module on the other end face of the connecting column; the light source warning module and the sound source warning module are respectively provided with a pair of pins, the pins of the light source warning module and the sound source warning module are respectively inserted into the connecting column from the end parts of the connecting column, and the two pins of the light source warning module and the sound source warning module are respectively in one-to-one correspondence contact in the connecting column; the connecting column is internally provided with a pair of threading channels; the stitch butt joint of the light source warning module and the sound source warning module is respectively led out a corresponding first electric wire, and the first electric wire extends out of the connecting column from the threading channel.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the early warning protection device also comprises an early warning protection main body; the early warning protection main body is provided with a fixing hole for installing the warning unit; the fixing hole is matched with the outer diameter of the connecting column; the connecting column is inserted into the fixing hole, the first gland is positioned on one side of the fixing hole, the second gland is positioned on the other side of the fixing hole, and the inner ends of the first gland and the second gland can jointly extrude the periphery of the fixing hole for one circle.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the first gland is connected to the outer end of the connecting column through screw thread fit, and the second gland is connected to the inner end of the connecting column through screw thread fit; one end of the connecting column is provided with a pair of jacks matched with the pins of the light source warning module, and the other end of the connecting column is provided with a pair of jacks matched with the pins of the sound source warning module; the edge of the fixing hole is provided with a threading groove which can be opposite to the outer port of the threading channel; the first electric wire is fixed in the threading channel and outwards penetrates through the threading groove; the center of the second gland is provided with a second window.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the wiring unit includes a housing having an accommodating space therein; the shell comprises a pair of first side plates which are parallel to each other, a pair of end plates which are respectively arranged at two ends of the first side plates, and a second side plate which is connected between the edges of the two first side plates; the two ends of the shell are respectively provided with a first opening and a second opening; a partition plate extending inwards longitudinally is arranged at each of the first opening and the second opening to divide the first opening and the second opening into a pair of first plug wire openings and a pair of second plug wire openings respectively; a pair of power receiving groups are longitudinally and symmetrically fixed in the accommodating space, and the two power receiving groups are respectively positioned at two sides of the partition board; the power connection group comprises a connecting section embedded and fixed on the inner side surface of the first side plate, and a first elastic extrusion head and a second elastic extrusion head which are symmetrically arranged at two ends of the connecting section along the transverse direction; the first elastic extrusion heads of the two power connection groups are respectively corresponding to a pair of first wire insertion openings at one end of the shell, and the second elastic extrusion heads of the two power connection groups are respectively corresponding to a pair of second wire insertion openings at the other end of the shell; threading spaces are formed between the first elastic extrusion heads and the second side plates of the shell, and check coatings are arranged on the side surfaces of the first elastic extrusion heads and the second elastic extrusion heads, which correspond to the threading spaces.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the first elastic extrusion head and the second elastic extrusion head have the same structure, and both the first elastic extrusion head and the second elastic extrusion head comprise a slope plate which is fixed with the end part of the connecting section and extends inwards and a pressing plate which is fixed at the tail end of the slope plate; the check coating is arranged at the joint of the slope plate and the pressing plate, and a threading space exists between the pressing plate and the second side plate of the shell.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: a fastener is arranged between the power connection groups; the fastener comprises an elastic arc plate longitudinally spanning between the two end plates and a push plate fixed at the center of the elastic arc plate, and a through hole matched with the push plate is formed in the second side plate; an L-shaped elastic angle plate is fixedly connected between the slope plate and the pressing plate, and forms a folding angle towards the elastic arc plate.
As a preferable scheme of the modularized near-electricity early warning system, the invention comprises the following steps: the width of the threading space is smaller than the outer diameter of the wire core of the wiring terminal; when the wiring end of first electric wire and second electric wire inserts corresponding threading space from the first plug wire mouth and a pair of second plug wire mouth at wiring unit both ends respectively, the wiring end can with the clamp plate contact, and can make the elasticity arc take place the indent through pressing the elasticity arc of evagination and become to press on the dog-ear of L type elasticity angle plate, simultaneously, the push pedal can wear out the mouth.
The invention has the beneficial effects that: the near-electricity early warning system has a near-electricity early warning function, and can be applied to protective equipment (such as safety helmets, working clothes and the like) of staff; when the working personnel are close to electricity, the buzzer can prompt the working personnel to have electric shock risks in a sound mode, meanwhile, the light emitting diode can also effectively remind the working personnel, and therefore safety and possibility are improved. The near-electricity early warning device adopts the modularized design and the detachable assembly of the circuit, and can facilitate the replacement/maintenance/installation of the circuit and the components thereof.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic diagram of a frame of the modular near-electricity early warning system.
FIG. 2 is a circuit diagram of one embodiment of the modular near-electric warning system.
Fig. 3 is a schematic diagram of an application scenario of the modular near-electricity early warning system and a partial detailed diagram thereof.
Fig. 4 is a detailed view of the structure at a in fig. 3.
Fig. 5 is a schematic diagram showing a connection process of the wiring unit to the wires at both ends thereof.
Fig. 6 is a structural view of the wiring unit and an exploded view thereof.
Fig. 7 is an internal configuration view of the wiring unit housing.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Referring to fig. 1 to 4, in an embodiment of the present invention, a modular near-electricity early warning system is provided, which includes a modular warning unit 100 and a main control unit 200, and a wiring unit 300 capable of rapidly and electrically connecting the two.
The warning unit 100 includes a warning module 101, and a first wire 102 with one end connected to the warning module 101, where the other end of the first wire 102 can form a bare terminal J.
The main control unit 200 comprises a control module 201 and an induction detection module 202 connected with the control module 201; in addition, the control module 201 is further connected with a second electric wire 203, and the other end of the second electric wire 203 can also form a bare terminal J.
The wiring unit 300 is connected between the terminal J of the first electric wire 102 and the terminal J of the second electric wire 203, so that a detachable electrical connection is formed between the first electric wire 102 and the second electric wire 203.
Specifically, the warning module 101 includes a light source warning module 101a and a sound source warning module 101b, which are both connected to the second electric wire 203 of the main control unit 200 through the first electric wire 102, and can play a role in audible and visual warning, where the light source warning module 101a is a priority led, and the sound source warning module 101b is a buzzer.
The induction detection module 202 adopts a power supply induction wire (induction head) on the existing near-electricity early warning device, can acquire an external monitoring signal in real time, and sends the monitoring signal to the control module 201; when the control module 201 determines that the monitoring signal from the sensing detection module 202 reaches the preset threshold, the control module 201 controls the warning module 101 to make a corresponding response action (controls the light source warning module 101a to emit light for warning and controls the sound source warning module 101b to emit sound for warning) for warning the on-site personnel.
Therefore, when the safety helmet is powered on, a warning sound is sent out from the buzzer to remind an operator wearing the safety helmet; meanwhile, the diode emits flashing red warning light, and other personnel can confirm that the operator is close to electricity through light warning.
The control module 201 includes a filter 201a, an amplifier 201b, and a comparator 201c connected in sequence; the sensing detection module 202 is connected with the filter 201a, and the monitoring signal from the sensing detection module 202 is transmitted to the comparator 201c after being subjected to signal filtering processing of the filter 201a and signal amplifying processing of the amplifier 201 b; when the comparator 201c determines that the monitoring signal from the sensing detection module 202 reaches the preset threshold, the control module 201 controls the warning module 101 to perform a corresponding response action for warning the field personnel. The warning unit 100 is connected to the amplifier 201b via a second wire 203.
Preferably, the control module 201 may directly use an existing single-chip microcomputer.
Further, as shown in fig. 2, the control module 201 is further connected with a voltage stabilizing circuit 204 and a gear adjusting circuit 205. The voltage stabilizing circuit 204 is provided with a boosting resistor 204a; the gear adjusting circuit 205 comprises a plurality of branches connected in parallel, and each branch is provided with a corresponding resistor 205a and an on-off device 205b connected with the resistor 205a in series; different starting voltages can be obtained by controlling the on-off state of each on-off device 205b on the gear adjusting circuit 205, so as to serve as a preset threshold value of the control module 201.
The monitoring signal collected by the sensing detection module 202 is an induced voltage. The induced voltage is compared with the starting voltage by the comparator 201c, and when the induced voltage reaches the starting voltage, a 4KHz alarm signal is output by the control module 201, and the light source warning module 101a and the sound source warning module 101b are started by the alarm signal.
Based on the above, in one embodiment, as shown in fig. 2, which is a circuit diagram of one embodiment of the modularized near-electricity early warning system, in the actual working process of the circuit, an external electric field signal enters a TIN pin (chip 1 pin) of a control module 201 (JW 0828 chip) through an induction detection module 202 (antenna), and an induced voltage is generated after the filtering and amplifying of the JW0828 chip.
The induced voltage is compared with the starting voltage of the VERF pin (the pin 2 of the chip) of the JW0828 chip through an internal comparator, when the induced voltage is judged to reach the chip starting voltage, a 4KHz alarm signal is output by the OUT pin (the pin 6 of the chip) of the JW0828 chip, and a buzzer and a red light emitting diode are started to emit pulse audible and visual alarm.
VREFO pin (chip 7 pin) on JW0828 chip is voltage stabilizing reference output; the VREF pin (chip 2 pin) is a gear voltage output and is also a starting voltage.
The VREFO pin (chip 7 pin) outputs a regulated voltage, and the VREF pin (chip 2 pin) is regulated by the boost resistor R8 to form the voltage regulator circuit 204 of the control module 201.
The gear adjusting circuit 205 in fig. 2 includes five branches connected in parallel with each other; each branch is provided with a resistor (R3-R7) with different specifications and switches (S2-S6) connected in series with each resistor. The resistors R3-R7 are used for adjusting starting voltages in different gears so as to realize the adjustment of induction sensitivity.
The crystal oscillator X (crystal oscillator) in fig. 2 is used to generate a 4KHz alarm signal on the OUT pin (6 pin) of the chip.
Further, the light source warning module 101a and the sound source warning module 101b are connected in parallel.
Further, the warning unit 100 further includes a connection post 103, a first pressing cover 104 detachably connected to one end of the connection post 103, and a second pressing cover 105 detachably connected to the other end of the connection post 103. Preferably, the first gland 104 is connected to the outer end of the connection post 103 by a screw-fit, and the second gland 105 is connected to the inner end of the connection post 103 by a screw-fit.
The connecting column 103 is a short column structure with an outer diameter matched with the fixing hole 401, and is used for fixing the light source warning module 101a and the sound source warning module 101b, and is made of an insulating material.
The first gland 104 presses the light source warning module 101a on one end face of the connecting column 103, and a first window 104a for enabling the head of the light source warning module 101a to protrude is arranged at the center of the first gland 104; the second pressing cover 105 presses the outer edge of the sound source warning module 101b against the other end face of the connection post 103, and a second window 105a is provided at the center of the second pressing cover 105 for releasing the sound of the sound source warning module 101b.
The light source warning module 101a and the sound source warning module 101b are respectively provided with a pair of overhanging pins Z, the pins Z of the two are respectively inserted into the connecting column 103 from the end part of the connecting column 103, and the two pins Z of the two are respectively contacted in a one-to-one correspondence manner in the connecting column 103. One end of the connection column 103 is provided with a pair of insertion holes 103b matched with the pins Z of the light source warning module 101a, and the other end is provided with a pair of insertion holes 103b matched with the pins Z of the sound source warning module 101b.
The connecting column 103 has a pair of threading passages 103a for embedding the fixed electric wires therein; a corresponding first electric wire 102 is led out from the butt joint of the pin Z of the light source warning module 101a and the pin Z of the sound source warning module 101b, and extends out of the connecting column 103 from the threading channel 103 a.
Further, as shown in fig. 3 to 7, the modular near-electricity early warning system further includes an early warning protection body 400 for installation and application of the above circuit structure. For example: the early warning protection body 400 may be a safety helmet, namely: the circuit with the early warning function is installed and applied to the safety helmet, so that workers wearing the safety helmet are safer, workers and workers are effectively reminded when the workers are close to electricity, and the electric shock risk of power operation is reduced.
The top of the helmet is provided with a fixing hole 401 for installing the warning unit 100, and the fixing hole 401 is internally and externally penetrated and is matched with the outer diameter of the connecting column 103.
The connecting column 103 is inserted into the fixing hole 401, the first gland 104 is located on one side of the fixing hole 401, the second gland 105 is located on the other side of the fixing hole 401, the inner ends of the first gland 104 and the second gland 105 can jointly extrude the periphery of the fixing hole 401 for one circle, the light source warning module 101a, the connecting column 103 and the sound source warning module 101b are clamped together, and the warning unit 100 is installed and fixed on the top of the safety helmet.
In addition, the edge of the fixing hole 401 is provided with a threading groove 402 which extends radially and can be opposite to the outer port of the threading channel 103a; the first wire 102 is fixed in the threading channel 103a and passes through the threading groove 402 outwards to form a terminal J with one exposed end.
Further, each module of the main control unit 200 in the present invention may be separately fixed on the inner side wall of the helmet, or may be integrated on the circuit board, and fixed on the inner side wall of the helmet through the circuit board itself or through the housing wrapping the periphery thereof.
Further, as shown in fig. 2 to 7, the first electric wire 102 and the second electric wire 203 are detachably connected through the wiring unit 300, so that the modular design of circuit connection is realized, and the assembly/replacement of the modular electronic device is facilitated.
Specifically, as shown in fig. 5 to 7, the wiring unit 300 includes a housing 301 having an accommodation space M therein, and a pair of electric groups 302 symmetrically disposed inside the housing 301 in the longitudinal direction.
The housing 301 is a channel-type structure with one side open, and is made of an insulating material (such as plastic), and includes a pair of first side plates 301a parallel to each other, a pair of end plates 301b disposed at both ends of the first side plates 301a, respectively, and a second side plate 301c engaged between edges of the two first side plates 301 a.
The end plates 301b at both ends of the housing 301 have a first opening and a second opening, respectively. The first opening and the second opening are provided with a partition 301d extending inwards in the longitudinal direction, and the first opening and the second opening are respectively divided into a pair of first plug wire openings M-1 and a pair of second plug wire openings M-2 for inserting the exposed wiring terminals J. The partition 301d can prevent the two wires inserted into the same end of the housing 301 from being short-circuited.
The two power receiving groups 302 are symmetrically fixed in the accommodating space M along the longitudinal direction, and the two power receiving groups 302 are respectively located at two sides of the partition 301 d.
The power receiving group 302 includes a joint section 302a embedded and fixed on the inner side surface of the first side plate 301a, and a first elastic pressing head 302b and a second elastic pressing head 302c symmetrically disposed at both ends of the joint section 302a in the lateral direction. The joint section 302a and the first elastic extrusion head 302b and the second elastic extrusion head 302c at two ends thereof are preferably integrally formed metal copper members, the joint section 302a extends longitudinally in the first side plate 301a, and a groove 301a-1 matched with the joint section 302a is arranged in the first side plate 301a for embedding the joint section 302 a.
The pair of electric groups 302 located on both sides of the partition 301d include four elastic extrusion heads in common, specifically: the first elastic pressing heads 302b of the two power receiving groups 302 respectively correspond to a pair of first wire insertion openings M-1 at one end of the housing 301, and the second elastic pressing heads 302c of the two power receiving groups 302 respectively correspond to a pair of second wire insertion openings M-2 at the other end of the housing 301. The elastic extrusion heads are in one-to-one correspondence with the plug wire ports, so that the wiring terminals J inserted into the plug wire ports can be connected with the corresponding elastic extrusion heads, and electric connection is realized.
Threading spaces M-3 are respectively formed between the first elastic extrusion heads 302b and the second elastic extrusion heads 302c and the second side plate 301c of the shell 301, the threading spaces M-3 are used for laterally extruding and fixing penetrating terminals J through the elastic extrusion heads, and check coatings T are respectively and partially arranged on the side surfaces, corresponding to the threading spaces M-3, of the first elastic extrusion heads 302b and the second elastic extrusion heads 302c. The non-return coating T is made of flexible anti-slip materials (such as silica gel and rubber) and is used for preventing slipping and falling of the wiring terminal J.
Preferably, the first elastic pressing head 302B has the same structure as the second elastic pressing head 302c, and both include a slope plate B-1 fixed to the end of the joint section 302a and extending inward, and a pressing plate B-2 fixed to the end of the slope plate B-1; the slope plate B-1 and the pressing plate B-2 can elastically deform, and the joint of the slope plate B-1 and the pressing plate B-2 is bent to form an obtuse angle. The non-return coating T is arranged at the joint of the slope plate B-1 and the pressing plate B-2, and a threading space M-3 exists between the pressing plate B-2 and the second side plate 301c of the shell 301.
Therefore, after the wiring terminal J is inserted into the threading space M-3 from any wiring port, the corresponding slope board B-1 can be jacked up and contacted with the pressing board B-2; when the terminal J has a tendency of falling off after being retracted outwards, the elastic extrusion head can be enabled to extrude the terminal J in the lateral direction more tightly through the friction force of the non-return coating T, and the situation that falling off cannot be guaranteed. Thus, the present invention defines: the width of the threading space M-3 is smaller than the outer diameter of the wire core of the wiring terminal J.
Further, in order to facilitate the insertion of the terminal J into the threading space M-3 from any one of the wire insertion openings, the present invention provides the outer edge of each partition 301d with a blade shape so as to facilitate the branching and guiding (splitting a pair of wires into two paths, respectively inserted into the corresponding threading space M-3 from two first wire insertion openings M-1/a pair of second wire insertion openings M-2 at the same end).
Further, fasteners 303 are disposed between the power receiving sets 302.
The fastener 303 includes a resilient arcuate plate 303a longitudinally spanning between two end plates 301b and a push plate 303b secured at the center of the resilient arcuate plate 303 a.
Both ends of the elastic arc plate 303a are respectively fixed (preferably integrally formed or fixed by ultrasonic welding) to edges of two end plates 301b of the housing 301, and are made of plastic having toughness similar to the housing 301. The elastic arc plate 303a longitudinally spans the outer sides of the respective elastic extrusion heads and is located between the engagement sections 302a of the two power receiving groups 302 to form an arc structure capable of forming two different states of protruding/recessing by outward/inward deformation. When the elastic arc plate 303a is in the concave shape, each elastic extrusion head can be pressed at the same time, and the lateral confining pressure is uniformly applied.
The push plate 303b is integrally formed with the elastic arc plate 303a and is perpendicular to the center of the elastic arc plate 303a, and is isolated between the first elastic extrusion head 302b and the second elastic extrusion head 302c of each power receiving group 302.
The second side plate 301c is provided with a through hole 301c-1 fitted to the push plate 303b.
In addition, an L-shaped elastic angle plate B-3 is fixedly connected between the slope plate B-1 and the pressing plate B-2 (one end of the L-shaped elastic angle plate B-3 is integrally formed on the inner side surface of the slope plate B-1, and the other end of the L-shaped elastic angle plate B-3 is integrally formed at the tail end of the pressing plate B-2), and the L-shaped elastic angle plate B-3 forms a folding angle B-31 facing the elastic arc plate 303 a. When the elastic arc plate 303a is concave, the folded angle B-31 of the L-shaped elastic angle plate B-3 can be pressed, and at this time, the pressure can be transmitted to the slope plate B-1 and the pressing plate B-2 through the L-shaped elastic angle plate B-3, respectively, so that the pressing plate B-2 can be pressed more tightly on the outer side face of the terminal J.
In summary, the wiring process of the wiring unit 300 of the present invention is as follows: when the terminals J of the first electric wire 102 and the second electric wire 203 are respectively inserted into the corresponding threading space M-3 from the first wire insertion opening M-1 and the pair of second wire insertion openings M-2 at both ends of the wiring unit 300, the terminals J can be contacted with the pressing plate B-2, and the elastic arc plate 303a can be concavely deformed by pressing the convex elastic arc plate 303a and pressed on the folded angle B-31 of the L-shaped elastic angle plate B-3, and simultaneously, the pushing plate 303B can be penetrated out of the threading opening 301c-1.
It should be noted that: when the pressure of the fastener 303 on each elastic extrusion head needs to be removed, the end of the push plate 303b protruding out of the through hole 301c-1 is only pressed, so that the elastic arc plate 303a is pushed and restored to the convex shape (the elastic arc plate 303a at this time is separated from each elastic extrusion head).
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, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (8)
1. A modularized near-electricity early warning system is characterized in that: comprising the steps of (a) a step of,
the warning unit (100) comprises a warning module (101) and a first electric wire (102) with one end connected with the warning module (101), wherein a wiring terminal (J) is formed at the other end of the first electric wire (102);
the main control unit (200) comprises a control module (201) and an induction detection module (202) connected with the control module (201), wherein the control module (201) is also connected with a second electric wire (203), and a wiring terminal (J) is also formed at the other end of the second electric wire (203); the method comprises the steps of,
a wiring unit (300) connected between a terminal (J) of the first electric wire (102) and a terminal (J) of the second electric wire (203) such that a detachable electrical connection is formed between the first electric wire (102) and the second electric wire (203);
the wiring unit (300) comprises a housing (301) with an accommodating space (M) inside, and a pair of electric groups (302) symmetrically arranged inside the housing (301) along the longitudinal direction;
the shell (301) comprises a pair of first side plates (301 a) which are parallel to each other, a pair of end plates (301 b) which are respectively arranged at two ends of the first side plates (301 a), and a second side plate (301 c) which is connected between the edges of the two first side plates (301 a);
the end plates (301 b) at the two ends of the shell (301) are respectively provided with a first opening and a second opening, a partition plate (301 d) extending inwards longitudinally is arranged at each of the first opening and the second opening, the first opening and the second opening are respectively divided into a pair of first plug wire openings (M-1) and a pair of second plug wire openings (M-2) for inserting exposed terminals (J);
the two power connection groups (302) are symmetrically fixed in the accommodating space (M) along the longitudinal direction, and the two power connection groups (302) are respectively positioned at two sides of the partition board (301 d);
the power connection group (302) comprises a connection section (302 a) embedded and fixed on the inner side surface of the first side plate (301 a), and a first elastic extrusion head (302 b) and a second elastic extrusion head (302 c) which are symmetrically arranged at two ends of the connection section (302 a) along the transverse direction; the connecting section (302 a) longitudinally extends in the first side plate (301 a), and a groove (301 a-1) matched with the connecting section (302 a) is formed in the first side plate (301 a);
a pair of electric groups (302) positioned on both sides of the partition plate (301 d) commonly comprise four elastic extrusion heads; the first elastic extrusion heads (302 b) of the two power connection groups (302) are respectively corresponding to a pair of first wire insertion openings (M-1) at one end of the shell (301), and the second elastic extrusion heads (302 c) of the two power connection groups (302) are respectively corresponding to a pair of second wire insertion openings (M-2) at the other end of the shell (301); the elastic extrusion heads are in one-to-one correspondence with the wire insertion openings, so that the wiring ends (J) inserted into the wire insertion openings can be connected with the corresponding elastic extrusion heads to realize electric connection;
threading spaces (M-3) are formed between the first elastic extrusion heads (302 b) and the second elastic extrusion heads (302 c) and the second side plate (301 c) of the shell (301) and are used for laterally extruding and fixing penetrating wiring ends (J), and check coatings (T) are partially arranged on the side surfaces of the first elastic extrusion heads (302 b) and the second elastic extrusion heads (302 c) corresponding to the threading spaces (M-3);
a fastener (303) is arranged between the power receiving groups (302);
the fastener (303) comprises an elastic arc plate (303 a) longitudinally spanning between two end plates (301 b) and a push plate (303 b) fixed at the center of the elastic arc plate (303 a);
the two ends of the elastic arc plate (303 a) are respectively fixed with the edges of the two end plates (301 b) of the shell (301), and the elastic arc plate is made of plastic with toughness, and the material of the elastic arc plate is the same as that of the shell (301); the elastic arc plates (303 a) longitudinally span the outer sides of the elastic extrusion heads and are positioned between the connecting sections (302 a) of the two power receiving groups (302) to form an arc structure, and the arc structure can form different states of protruding and recessed through outward/inward deformation; when the elastic arc plate (303 a) is in a concave form, each elastic extrusion head can be pressed at the same time, and lateral confining pressure is uniformly applied;
the push plate (303 b) and the elastic arc plate (303 a) are integrally formed and are perpendicular to the center of the elastic arc plate (303 a), and are isolated between a first elastic extrusion head (302 b) and a second elastic extrusion head (302 c) of each power receiving group (302);
the second side plate (301 c) is provided with a through hole (301 c-1) matched with the push plate (303 b);
the warning module (101) comprises a light source warning module (101 a) and a sound source warning module (101 b), and the light source warning module and the sound source warning module are connected with a second electric wire (203) of the main control unit (200) through the first electric wire (102);
the induction detection module (202) can acquire a monitoring signal in real time and send the monitoring signal to the control module (201); when the control module (201) determines that the monitoring signal from the induction detection module (202) reaches a preset threshold value, the control module (201) controls the warning module (101) to make a corresponding response action;
the warning unit (100) further comprises a connecting column (103), a first gland (104) detachably connected to one end of the connecting column (103) and a second gland (105) detachably connected to the other end of the connecting column (103);
the first gland (104) presses the light source warning module (101 a) on one end face of the connecting column (103); the second gland (105) presses the sound source warning module (101 b) on the other end face of the connecting column (103);
the light source warning module (101 a) and the sound source warning module (101 b) are respectively provided with a pair of pins (Z), the pins (Z) of the light source warning module and the sound source warning module are respectively inserted into the connecting column (103) from the end part of the connecting column (103), and the two pins (Z) of the light source warning module and the sound source warning module are respectively in one-to-one corresponding contact in the connecting column (103);
the connecting column (103) is internally provided with a pair of threading channels (103 a); the corresponding first electric wire (102) is led out from the butt joint of the pin (Z) of the light source warning module (101 a) and the pin (Z) of the sound source warning module (101 b), and the corresponding first electric wire extends out of the connecting column (103) from the threading channel (103 a).
2. The modular near-electrical early warning system of claim 1, wherein: the control module (201) comprises a filter (201 a), an amplifier (201 b) and a comparator (201 c) which are sequentially connected;
the sensing detection module (202) is connected with the filter (201 a), and a monitoring signal from the sensing detection module (202) is transmitted to the comparator (201 c) after being subjected to signal filtering processing of the filter (201 a) and signal amplifying processing of the amplifier (201 b).
3. The modular near-electrical early warning system of claim 2, wherein: the control module (201) is connected with a voltage stabilizing circuit (204) and a gear adjusting circuit (205);
the voltage stabilizing circuit (204) is provided with a boosting resistor (204 a); the gear adjusting circuit (205) comprises a plurality of branches connected in parallel, and each branch is provided with a corresponding resistor (205 a) and an on-off device (205 b) connected in series with the resistor (205 a); different starting voltages can be obtained by controlling the on-off state of each on-off device (205 b) on the gear adjusting circuit (205) to serve as a preset threshold value of the control module (201);
the monitoring signal collected by the induction detection module (202) is an induction voltage.
4. The modular near-electrical early warning system of claim 3, wherein: the induced voltage is compared with the starting voltage through the comparator (201 c), when the induced voltage reaches the starting voltage, a 4KHz alarm signal is output by the control module (201), and the light source alarm module (101 a) and the sound source alarm module (101 b) are started through the alarm signal.
5. The modular near-electrical warning system of claim 3 or 4, wherein: the gear adjusting circuit (205) comprises five branches connected in parallel with each other; each branch is provided with a resistor with different specifications and a switch connected with the resistor in series.
6. The modular near-electrical early warning system of claim 5, wherein: the light source warning module (101 a) adopts a light emitting diode; the sound source warning module (101 b) adopts a buzzer.
7. The modular near-electrical early warning system of any one of claims 1, 3, 4, wherein: the light source warning module (101 a) and the sound source warning module (101 b) are mutually connected in parallel.
8. The modular near-electrical early warning system of claim 7, wherein: also comprises an early warning protection main body (400);
the early warning protection main body (400) is provided with a fixing hole (401) for installing the warning unit (100); the fixing hole (401) is matched with the outer diameter of the connecting column (103);
the connecting column (103) is inserted into the fixing hole (401), the first gland (104) is located on one side of the fixing hole (401), the second gland (105) is located on the other side of the fixing hole (401), and the inner ends of the first gland (104) and the second gland (105) can be used for extruding the periphery of the fixing hole (401) for one circle together.
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Application publication date: 20210713 Assignee: SHENZHEN QIXIN Group LLC Assignor: Zhalantun thermal power plant of Hulunbeier Antai Thermal Power Co.,Ltd. Contract record no.: X2023980044457 Denomination of invention: A Modular Near Current Warning System Granted publication date: 20230502 License type: Common License Record date: 20231024 |