CN114839406B - Feeder terminal testing arrangement - Google Patents
Feeder terminal testing arrangement Download PDFInfo
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- CN114839406B CN114839406B CN202210785430.3A CN202210785430A CN114839406B CN 114839406 B CN114839406 B CN 114839406B CN 202210785430 A CN202210785430 A CN 202210785430A CN 114839406 B CN114839406 B CN 114839406B
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- arc
- filter screen
- tester
- shell
- spring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20145—Means for directing air flow, e.g. ducts, deflectors, plenum or guides
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20181—Filters; Louvers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention provides a feeder terminal testing device which comprises a shell provided with an air inlet and an air outlet and a tester arranged in the shell, wherein the air inlet is provided with a first filter screen; the shell body is provided with a fixed shaft and a motor; one end of the fixed shaft is provided with a first gear; the motor is electrically connected with the tester, the output end of the motor is provided with a rotating shaft, one end of the rotating shaft is provided with a second gear, and the other end of the rotating shaft is provided with fan blades; the first gear is meshed with the second gear; one end of the air inlet is hinged with the first filter screen, the other end of the air inlet is provided with a first sliding rail and a first sliding block, and the first filter screen is fixedly connected with the first sliding block; a first magnet is arranged on one side of the first sliding block, a first spring is fixed on the end face of the other side of the first sliding block, and the other end of the first spring is fixed on the shell; the first gear is provided with a second magnet which is vertically equidistant from the center of the first magnet. The test device can provide a protective shell for the tester, and simultaneously, timely dissipates heat for the tester and avoids dust accumulation.
Description
Technical Field
The invention relates to the technical field of power equipment detection devices, in particular to a feeder terminal testing device.
Background
The feeder terminal FTU is communicated with the distribution automation main station, can monitor the operation condition of a distribution system and provide various parameter information including on-off state, electric energy parameters, phase-to-phase faults, earth faults and parameters during other faults, executes a command issued by the distribution main station to regulate and control distribution equipment, realizes the functions of fault location, fault isolation, quick recovery of power supply in a non-fault area and the like, and is tested before leaving a factory so as to ensure the factory quality of the feeder terminal.
Feeder line testers are generally used for testing feeder line terminals, and because the testing time is usually long, the testers are easy to generate heat in the working process, and even the testers can be damaged in severe cases.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a feeder terminal testing device which solves the problem that a feeder tester is easy to generate heat and damage after being used for a long time.
The invention provides a feeder terminal testing device which comprises a tester and a shell provided with an air inlet and an air outlet, wherein the tester is placed in the shell;
the air inlet is provided with a first filter screen;
the shell body is provided with a fixed shaft and a motor, one end of the fixed shaft is fixed on the shell body, the other end of the fixed shaft is provided with a bearing, and the bearing is connected with the first gear; the motor is electrically connected with the tester, the output end of the motor is provided with a rotating shaft penetrating through the shell, one end of the rotating shaft close to the air inlet is provided with a second gear, and the other end of the rotating shaft is provided with a fan blade; the first gear is meshed with the second gear;
one side of the air inlet is hinged with one end of the first filter screen, the other side of the air inlet is provided with a first slide rail parallel to the axial direction of the fixed shaft and a first slide block matched with the first slide rail, and the other end of the first filter screen is fixedly connected with the first slide block; the first slider is provided with a first magnet on the end surface close to one side of the first gear, a first spring is fixed on the end surface far away from one side of the first gear, and the other end of the first spring is fixed on the shell body;
the first gear is provided with a second magnet on the end face close to one side of the first magnet, the magnetic poles of the second magnet and the first magnet are mutually exclusive, and the vertical distances from the first gear to the central shaft are equal.
Preferably, the air outlet is provided with a second filter screen; a supporting plate which is positioned right above the air outlet is arranged on the inner side of the shell body, the supporting plate is perpendicular to the second filter screen, a first through hole is formed in the supporting plate, a first sliding rod which is perpendicular to the supporting plate is arranged through the first through hole, an arc plate which is perpendicular to the second filter screen is fixed at one end, close to the air outlet, of the first sliding rod, a mounting plate is fixed at one end, far away from the air outlet, of the arc plate, the surface of one side, facing the air outlet, of the arc plate is a convex arc surface, and the surface of one side, far away from the air outlet, of the arc plate is a plane; a second spring is arranged between the supporting plate and the mounting plate and is symmetrical to the first sliding rod, and two ends of the second spring are fixedly connected with the mounting plate and the supporting plate respectively;
a Venturi tube is arranged on the inner side of the bottom of the shell, an inlet section pipe orifice of the Venturi tube faces the fan blades, and a diffusion section pipe orifice faces the arc-shaped plate and is perpendicular to the arc-shaped plate;
a plurality of arc-shaped protrusions are fixed on one side, facing the arc-shaped plate, of the second filter screen, the arc-shaped protrusions are located under the arc-shaped plate and are evenly arranged at intervals along the direction perpendicular to the arc-shaped plate, and the arc-shaped plate abuts against the second filter screen;
a first groove perpendicular to the second filter screen is formed in one side, close to the arc-shaped bulge, of the air outlet, and a support ring parallel to the second filter screen is arranged in the first groove; a second sliding block is arranged at the end part of one end, close to the arc-shaped bulge, of the second filter screen, and the second sliding block is located in the first groove; a third spring is arranged between the second sliding block and the supporting ring, and two ends of the third spring are respectively fixed on the second sliding block and the supporting ring;
the air outlet is keeping away from the bellied one side of arc sets up the perpendicular to the second recess of second filter screen, the tip of second filter screen is located in the second recess.
Further preferably, the support ring is provided with a second through hole; the second slider is provided with a horizontal second sliding rod, and the second sliding rod penetrates through the second through hole.
Still further preferably, a first contact is fixed on one side of the mounting plate facing the support plate, a second contact facing the first contact is fixed on one side of the support plate facing the mounting plate, and the first contact and the second contact are electrically connected with the tester respectively;
liquid storage tanks filled with electrorheological fluid are symmetrically arranged on the inner side of the shell, each liquid storage tank is provided with a connecting pipe, a pipe orifice at one end of each connecting pipe is communicated with the inside of the corresponding liquid storage tank, so that the corresponding pipe is filled with the electrorheological fluid, the other end of each connecting pipe is provided with a third sliding block in clearance fit with the inner wall of the corresponding connecting pipe, and the third sliding blocks are made of rubber; one side of the third sliding block, which is far away from the liquid storage tank, is fixedly connected with a movable rod which is axially parallel to the connecting pipe, the other end of the movable rod is fixedly connected with clamping pieces, the tester is positioned between the symmetrically arranged clamping pieces, and the clamping pieces are used for clamping and fixing the tester; a fourth spring is sleeved outside the movable rod, and two ends of the fourth spring are respectively and fixedly connected with the clamping piece and the connecting pipe;
the second contact and the tester are respectively electrically connected with the electrorheological fluid in the liquid storage tank;
the top of the shell is provided with an opening, and the opening is provided with a cover body matched with the opening.
Still further preferably, a horizontal placing plate is symmetrically fixed on the inner side of the shell, and the tester is placed on the placing plate;
the clamping piece is composed of a first clamping strip, a second clamping strip and a third clamping strip which are parallel to the placing plate; the movable rod is fixed in the middle of the second clamping strip, two ends of the second clamping strip are respectively connected with the first clamping strip and the third clamping strip in a right angle mode, and the first clamping strip and the third clamping strip are located on the same side of the second clamping strip; the tester is located between the first card strip and the third card strip.
Still further preferably, the second clamping strip is provided with a second slide rail perpendicular to the first clamping strip and a plurality of threaded holes uniformly distributed in parallel with the second slide rail;
the third clamping strip is provided with a sliding groove and a bolt hole which are matched with the second sliding rail, and the threaded hole is connected with the bolt hole through a bolt.
Still further preferably, the first spring, the second spring, the third spring and the fourth spring are all compression springs.
Still further preferably, the tank body of the liquid storage tank is made of an insulating material.
Still further preferably, one side of the cover body is hinged with the housing, and the other side is in snap connection with the housing.
Preferably, a support is further arranged at the bottom of the shell, and the support is connected with the rotating shaft and used for supporting the rotating shaft.
According to the technical scheme, the invention has the following advantages:
the invention provides a feeder terminal testing device, which is characterized in that a protective shell is provided for a tester by placing the tester in a shell, so that the tester is prevented from being directly exposed and easily damaged by collision of foreign objects; meanwhile, the shell is provided with a motor connected with fan blades, an air outlet and an air inlet, the tester is electrically connected with the motor, and the tester is connected with a power supply of the motor when working, so that the circulation and heat exchange of air in the device can be accelerated through the fan blades, heat generated by the tester is dissipated from the air outlet in time, and the tester is prevented from being damaged due to overheating; in addition, through setting up the first magnet and the second magnet that magnetism is mutually exclusive, when the motor shaft rotates and drives first gear revolve and make first magnet and second magnet just to the time, first filter screen can be because of the repulsion that first magnet and second magnet produced rotates around the articulated shaft, thereby compress first spring, when first gear rotates and makes first magnet and second magnet stagger, first filter screen can be because of the compression elasticity that first spring produced rotates around articulated department and rebounds, thereby can make in the tester working process first filter screen receives incessant vibration, thereby can clear away the dust on the first filter screen, prevent that the dust from piling up and influencing the intake.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a perspective view of a feeder terminal testing device according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a feeder terminal testing device according to an embodiment of the present invention;
FIG. 3 is a diagram of the A node in FIG. 2;
FIG. 4 is the node B diagram of FIG. 2;
FIG. 5 is a C node diagram of FIG. 4;
FIG. 6 is a D node diagram of FIG. 2;
FIG. 7 is a view in the direction E of FIG. 2;
wherein the reference numbers indicate: the tester 1, the housing 2, the cover 3, the air outlet 4, the second filter screen 5, the air inlet 6, the first filter screen 7, the fixed shaft 8, the first gear 9, the motor 10, the rotating shaft 11, the second gear 12, the fan blade 13, the first slide rail 14, the first slider 15, the first magnet 16, the first spring 17, the second magnet 18, the bracket 19, the support plate 20, the first through hole 21, the first slide bar 22, the arc plate 23, the mounting plate 24, the second spring 25, the venturi tube 26, the arc protrusion 27, the first groove 28, the support ring 29, the second groove 30, the second slider 31, the third spring 32, the second through hole 33, the second slide bar 34, the first contact 35, the second contact 36, the liquid storage tank 37, the electrorheological fluid 38, the connecting pipe 39, the third slider 40, the movable rod 41, the clamping piece 42, the fourth spring 43, the resting plate 44, the first clamping strip 421, the second clamping strip 422, the third clamping strip 423, the second slide rail 45, the threaded hole 46, the bolt hole 47, the bolt 48, and the buckle 49.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present application, it should be noted that the terms "upper", "inner", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The terms "connected," "secured," and "disposed" are to be construed broadly and encompass, for example, a fixed connection, a removable connection, or an integral connection unless expressly stated or limited otherwise; the two components may be mechanically connected, directly connected, indirectly connected through an intermediate medium, or connected together internally. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features. Unless otherwise specifically limited.
An embodiment of the present invention provides a feeder terminal testing apparatus, and please refer to fig. 1 to 7 specifically.
As shown in fig. 1 to fig. 3, a feeder terminal testing apparatus in this embodiment includes: the tester comprises a tester 1 and a shell 2 provided with an air inlet 6 and an air outlet 4, wherein the tester 1 is placed in the shell 1;
the air inlet 6 is provided with a first filter screen 7;
a fixed shaft 8 and a motor 10 are arranged on the shell of the shell 2, one end of the fixed shaft 8 is fixed on the shell of the shell 2, and the other end of the fixed shaft is provided with a bearing which is connected with a first gear 9; the motor 10 is electrically connected with the tester 1, the output end of the motor 10 is provided with a rotating shaft 11 penetrating through the shell of the shell 2, one end of the rotating shaft 11 close to the air inlet 6 is provided with a second gear 12, and the other end is provided with a fan blade 13; the first gear 9 is meshed with the second gear 12;
one side of the air inlet 6 is hinged with one end of the first filter screen 7, and the other side is provided with a first slide rail 14 parallel to the axial direction of the fixed shaft 8 and a first slide block 15 matched with the first slide rail 14, for example, specifically, the first slide block 15 may be provided with a groove matched with the shape of the first slide rail 14, and the first slide rail 14 is placed in the groove on the first slide block 15; the other end of the first filter screen 7 is fixedly connected with a first sliding block 15; a first magnet 16 is arranged on the end face of the first sliding block 15 close to one side of the first gear 9, a first spring 17 is fixed on the end face of the first sliding block far away from one side of the first gear 9, and the other end of the first spring 17 is fixed on the shell of the shell 2;
the first gear 9 is provided with a second magnet 18 on the end face on the side close to the first magnet 16, the magnetic poles of the second magnet 18 and the first magnet 16 are mutually exclusive, and the vertical distances from the central axis of the first gear 9 are equal.
The feeder terminal testing device provided by the invention has the advantages that the tester 1 is placed inside the shell 2, so that a protective shell is provided for the tester 1, the tester 1 is prevented from being directly exposed and easily damaged by collision of foreign objects, and the testing device is convenient to use outdoors; the shell 2 is provided with a motor 10 connected with fan blades 13, an air outlet 4 and an air inlet 6, the tester 1 is electrically connected with the motor 10, and the motor 10 can be powered on after the tester 1 starts to work, so that the circulation and heat exchange of air in the device can be accelerated through the rotation of the fan blades 13, heat generated by the tester 1 is dissipated from the air outlet 4 in time, and the tester 1 is prevented from being damaged due to overheating; in addition, by arranging the first magnet 16 and the second magnet 18 with mutually exclusive magnetism, when the motor 10 is started to enable the rotating shaft 11 to rotate to drive the second gear 12 to rotate, the second gear 12 drives the first gear 9 to rotate and enable the first magnet 16 and the second magnet 18 to be aligned, the first sliding block 15 can move leftwards due to repulsive force generated by the first magnet 16 and the second magnet 18, so that the first filter screen 7 is driven to rotate anticlockwise around the hinge joint of the other end to compress the first spring 17, when the first gear 9 rotates to enable the first magnet 16 and the second magnet 18 to be staggered, repulsive force between homopolar magnets disappears, the first sliding block 15 can move rightwards due to compression elastic force generated by the first spring 17, so that the first filter screen 7 is driven to rotate clockwise around the hinge joint of the other end to rebound, so that the first filter screen 7 can vibrate for multiple times in the working process of the tester 1, dust on the first filter screen 7 can be removed, dust accumulation influence on air intake is prevented, and the heat dissipation effect is continuously ensured.
It should be noted that, compared with the magnet using opposite magnetic poles, the first magnet 16 and the second magnet 18 of the same-pole magnet generate a repulsive force rather than an attractive force, so that the first magnet 16 and the second magnet 18 are more easily separated during the rotation of the rotating shaft 11, and the wear generated during the separation can be avoided, thereby prolonging the service life.
Preferably, as shown in fig. 2, 4 and 5, the air outlet 4 is provided with a second filter screen 5, the inner side of the shell of the housing 2 is provided with a support plate 20 located right above the air outlet 4, the support plate 20 is perpendicular to the second filter screen 5, the support plate 20 is provided with a first through hole 21, a first slide bar 22 perpendicular to the support plate 20 is arranged through the first through hole 21, an arc-shaped plate 23 perpendicular to the second filter screen 5 is fixed at one end of the first slide bar 22 close to the air outlet 4, a mounting plate 24 is fixed at one end far away from the air outlet 4, the surface of the arc-shaped plate 23 facing the air outlet 4 is a convex arc-shaped surface, and the surface of the arc-shaped plate facing away from the air outlet 4 is a plane; a second spring 25 is arranged between the support plate 20 and the mounting plate 24 and is symmetrical to the first slide bar 22, one end of the second spring 25 is fixedly connected with the mounting plate 24, and the other end of the second spring 25 is fixedly connected with the support plate 20;
a Venturi tube 26 is arranged on the inner side of the bottom of the shell 2, the pipe orifice of the inlet section of the Venturi tube 26 faces the fan blade 13, and the pipe orifice of the diffusion section faces the arc-shaped plate 23 and is vertical to the arc-shaped plate 23;
a plurality of arc-shaped bulges 27 are fixed on one side of the second filter screen 5 facing the arc-shaped plate 23, each arc-shaped bulge 27 is positioned under the arc-shaped plate 23 and is uniformly arranged at intervals along the direction vertical to the arc-shaped plate 23, and the arc-shaped plate 23 is abutted against the second filter screen 5;
a first groove 28 which is perpendicular to the second filter screen 5 is formed in one side, close to the arc-shaped bulge 27, of the air outlet 4, and a support ring 29 which is parallel to the second filter screen 5 is fixed in the first groove 28; a second sliding block 31 is arranged at one end part of the second filter screen 5 close to the arc-shaped bulge 27, the second sliding block 31 is positioned in the first groove 28, a third spring 32 is arranged between the second sliding block 31 and the support ring 29, and two ends of the third spring 32 are respectively fixed on the second sliding block 31 and the support ring 29;
one end of the air outlet 4 far away from the arc-shaped protrusion 27 is provided with a second groove 30 perpendicular to the second filter screen 5, and the end part of the second filter screen 5 is located in the second groove 30.
When the tester 1 starts to test to enable the motor 10 to run by electrifying, the speed of flowing gas generated by rotation of the fan blades 13 is accelerated after the flowing gas passes through the venturi tube 26, the accelerated gas is blown to the surface of the arc-shaped plate 23, according to the Bernoulli principle, the flow speed of the air on the lower surface of the arc-shaped plate 23 is higher than that of the air on the upper surface of the arc-shaped plate 23, the arc-shaped plate 23 moves downwards due to pressure difference formed between the upper surface and the lower surface, so that the mounting plate 24 is driven by the first slide bar 22 to move downwards to compress the second spring 25, the end part of the arc-shaped plate 23 can touch the arc-shaped bulge 27 fixed on the second filter screen 5 in the downward movement process to push the second filter screen 5 to move rightwards, so that the second slide block 31 at the upper end of the second filter screen 5 compresses the third spring 32, when the arc-shaped plate 23 does not contact the arc-shaped bulge 27 in the downward movement process, the second filter screen 5 can be rebounded due to the elasticity of the third spring 32, when the arc-shaped plate impacts on the shell, so that the dust on the second filter screen 5 is vibrated, thereby preventing the influence on the air output and reducing the heat dissipation effect of the device; when the rotating speed of fan blade 13 is reduced or the fan blade stops rotating, the pressure difference on the surface of arc-shaped plate 23 is reduced and the second filter screen 5 moves upwards due to the elastic force of second spring 25, so that the end of arc-shaped plate 23 touches arc-shaped protrusion 27 fixed on second filter screen 5 again to push second filter screen 5 to move right again, so that third spring 32 is compressed by second slider 31 on second filter screen 5 again, when arc-shaped plate 23 no longer touches arc-shaped protrusion 27 in the process of moving upwards, second filter screen 5 can be rebounded due to the elastic force of third spring 32, and the dust on second filter screen 5 is shaken again, thereby avoiding dust accumulation on second filter screen 5 from influencing the air outlet volume in the next use, and thus, when tester 1 starts to work and after work, dust removal can be realized on the surface of second filter screen 5. It should be noted that, the distance between the arc-shaped protrusions 27 should not be too far, and the rotation speed of the motor 10, the wind speed and the size of the second filter 5 should be combined for comprehensive debugging and determination.
Further preferably, the support ring 29 is provided with a second through hole 33; the second slider 31 is provided with a horizontal second slide bar 34, the second slide bar 34 penetrates through the second through hole 33, and the stability of the second filter screen 5 during movement is improved through the cooperation of the second slide bar 34 and the second through hole 33 on the support ring 29.
Still further preferably, as shown in fig. 2 and 6, a first contact 35 is fixed on a side of the mounting plate 24 facing the support plate 20, a second contact 36 facing the first contact 35 is fixed on a side of the support plate 20 facing the mounting plate 24, and the first contact 35 and the second contact 36 are electrically connected to the tester 1 respectively;
the inner side of the shell 2 is symmetrically provided with liquid storage tanks 37 filled with electrorheological fluid 38, the liquid storage tanks 37 are provided with connecting pipes 39, one end pipe orifice of each connecting pipe 39 is communicated with the inside of the liquid storage tank 37 to enable the inside of the pipe to be filled with the electrorheological fluid 38, the other end of each connecting pipe is provided with a third sliding block 40 in clearance fit with the inner wall of the corresponding connecting pipe 39, and the third sliding blocks 40 are made of rubber and can prevent the electrorheological fluid from overflowing; one side of the third slider 40, which is far away from the liquid storage tank 37, is fixedly connected with a movable rod 41 which is parallel to the connecting pipe 39, the other end of the movable rod 41 is fixedly connected with clamping pieces 42, the tester 1 is positioned between the clamping pieces 42 which are symmetrically arranged, and the clamping pieces 42 are used for clamping and fixing the tester 1; a fourth spring 43 is sleeved on the outer surface of the movable rod 41, and two ends of the fourth spring 43 are respectively and fixedly connected with the clamping piece 42 and the connecting pipe 39;
the second contact 36 and the tester 1 are respectively electrically connected with the electrorheological fluid 38 in the liquid storage tank 37, specifically, two electrodes are fixed on the tank body of the liquid storage tank 37, the two electrodes are respectively contacted with the electrorheological fluid 38 in the tank body, the second contact 36 is connected with one of the electrodes through a lead, and the other electrode is connected to a circuit of the tester 1 through a lead, so that after the tester 1 starts to work, the electrorheological fluid 38 in the liquid storage tank 37 can be electrified through the contact between the first contact 35 and the second contact 36;
an opening is formed in the top of the shell 2, and a cover body 3 matched with the opening is arranged at the opening.
When the tester 1 is placed at the inner bottom of the housing 1 and is positioned between the clamping pieces 42 which are arranged in bilateral symmetry, because the external dimension of the tester 1 is larger than the distance between the clamping pieces 42 which are arranged in bilateral symmetry, the clamping piece 42 drives the movable rod 41 to push the third slide block 40 to extrude the electrorheological fluid 38 which is in the liquid state, so that the fourth spring 43 is compressed, and the tester 1 is preliminarily clamped through the elastic force of the fourth spring 43. When the tester 1 is started for testing, the fan blades 13 rotate to enable the mounting plate 24 to move downwards to the position where the first contact 35 is in contact with the second contact 36, so that the electrorheological fluid 38 in the liquid storage tank 37 is electrified, and then the electrorheological fluid 38 in the connecting pipe 39 is changed from a liquid state to a solid state, so that the third sliding block 40 is prevented from further moving rightwards, the stability of clamping the tester 1 by the clamping piece 42 is ensured, and the stable detection of the tester 1 is ensured; when the tester 1 stops testing and the motor 10 stops running, the mounting plate 24 moves upwards due to the elastic force of the second spring 25 so that the first contact 35 is not in contact with the second contact 36, at the moment, the electrorheological fluid 38 in the liquid storage tank 37 and the connecting pipe 39 changes from a solid state to a liquid state, and when the tester 1 needs to be overhauled, an overhauling person opens the cover body 3, and can easily and quickly take out the tester 1 from between the clamping pieces 42.
Still more preferably, as shown in fig. 2 and fig. 7, a horizontal resting plate 44 is symmetrically fixed on the inner side of the casing 2, the tester 1 is placed on the resting plate 44, and the resting plate 44 can be specifically arranged above the motor 10 or the venturi tube 26, so as to optimize the arrangement of the internal devices of the apparatus of the present invention, reduce the space volume required by the casing 1 as a whole, and further reduce the external dimension of the apparatus of the present invention;
the escapement 42 is composed of a first card strip 421, a second card strip 422 and a third card strip 423 which are parallel to the resting plate 44; the movable rod 41 is fixed in the middle of the second clamping strip 422, two ends of the second clamping strip 422 are respectively connected with the first clamping strip 421 and the third clamping strip 423 at right angles, and the first clamping strip 421 and the third clamping strip 423 are located on the same side of the second clamping strip 422; tester 1 is positioned between first strip 421 and third strip 423. Through the first clamping strip 421, the second clamping strip 422 and the third clamping strip 423, the tester 1 can be fixed all around, and the stability and effectiveness of fixing the tester 1 are ensured.
Still further preferably, as shown in fig. 7, the second clamping strip 422 is provided with a second sliding rail 45 perpendicular to the first clamping strip 421 and a plurality of threaded holes 46 uniformly distributed parallel to the second sliding rail 45; the third clamping strip 423 is provided with a sliding groove matched with the second sliding rail 45 and a bolt hole 47, and the threaded hole 46 is connected with the bolt hole 47 through a bolt 48. The sliding groove of the third clamping strip 423 is matched with the second sliding rail 45, the third clamping strip 423 is pushed according to the size of the tester 1 to adjust the horizontal distance between the third clamping strip 423 and the first clamping strip 421, and the third clamping strip is fixed by using the bolt 48, so that the clamping piece 42 can clamp testers with different models and sizes, and the device can be suitable for testers with various models and sizes. It should be noted that the first locking strip 421 and the second locking strip 422 may be processed into an L-shaped integrated structure, so as to improve the structural stability of the clip 42.
Still further preferably, the first spring 17, the second spring 25, the third spring 32 and the fourth spring 43 are all compression springs, i.e. generate a rebound force after compression.
Still more preferably, the tank 37 is made of an insulating material.
It is further preferred that one side of the lid 3 is hinged to the housing 2 and the other side is snap-connected to the housing 2, and that the snap 49 is opened and the lid 3 is opened upwards when the tester is to be removed and the lid 3 is opened.
Preferably, the bottom of the housing 2 is further provided with a support 19, and the support 19 is connected with the rotating shaft 11 and is used for supporting the rotating shaft 11, so as to avoid vibration caused by the fast rotation of the fan blades 13 when the rotating shaft 11 is long, and ensure the stability of the rotation of the fan blades 13.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A feeder terminal testing arrangement which characterized in that: the tester comprises a tester and a shell provided with an air inlet and an air outlet, wherein the tester is placed in the shell; the air inlet is provided with a first filter screen;
the shell body is provided with a fixed shaft and a motor, one end of the fixed shaft is fixed on the shell body, the other end of the fixed shaft is provided with a bearing, and the bearing is connected with the first gear; the motor is electrically connected with the tester, the output end of the motor is provided with a rotating shaft penetrating through the shell, one end of the rotating shaft close to the air inlet is provided with a second gear, and the other end of the rotating shaft is provided with a fan blade; the first gear is meshed with the second gear;
one side of the air inlet is hinged with one end of the first filter screen, the other side of the air inlet is provided with a first slide rail parallel to the axial direction of the fixed shaft and a first slide block matched with the first slide rail, and the other end of the first filter screen is fixedly connected with the first slide block; the first slider is provided with a first magnet on the end surface close to one side of the first gear, a first spring is fixed on the end surface far away from one side of the first gear, and the other end of the first spring is fixed on the shell body;
a second magnet is arranged on the end face of the first gear, which is close to one side of the first magnet, the magnetic poles of the second magnet and the first magnet are mutually exclusive, and the vertical distances from the first gear to the central axis are equal;
the air outlet is provided with a second filter screen; a supporting plate positioned right above the air outlet is arranged on the inner side of the shell body and is perpendicular to the second filter screen, a first through hole is formed in the supporting plate, a first sliding rod perpendicular to the supporting plate is arranged to penetrate through the first through hole, an arc-shaped plate perpendicular to the second filter screen is fixed at one end, close to the air outlet, of the first sliding rod, a mounting plate is fixed at one end, far away from the air outlet, of the arc-shaped plate, the surface, facing the air outlet, of the arc-shaped plate is a convex arc-shaped surface, and the surface, far away from the air outlet, of the arc-shaped plate is a plane; a second spring is arranged between the supporting plate and the mounting plate and is symmetrical to the first sliding rod, and two ends of the second spring are fixedly connected with the mounting plate and the supporting plate respectively;
a Venturi tube is arranged on the inner side of the bottom of the shell, a tube opening of an inlet section of the Venturi tube faces the fan blade, and a tube opening of a diffusion section faces the arc-shaped plate and is perpendicular to the arc-shaped plate;
a plurality of arc-shaped protrusions are fixed on one side, facing the arc-shaped plate, of the second filter screen, the arc-shaped protrusions are located under the arc-shaped plate and are evenly arranged at intervals along the direction perpendicular to the arc-shaped plate, and the arc-shaped plate abuts against the second filter screen;
a first groove perpendicular to the second filter screen is formed in one side, close to the arc-shaped bulge, of the air outlet, and a support ring parallel to the second filter screen is arranged in the first groove; a second sliding block is arranged at the end part of one end, close to the arc-shaped bulge, of the second filter screen, and the second sliding block is located in the first groove; a third spring is arranged between the second sliding block and the supporting ring, and two ends of the third spring are respectively fixed on the second sliding block and the supporting ring;
the air outlet is keeping away from the bellied one side of arc sets up the perpendicular to the second recess of second filter screen, the tip of second filter screen is located in the second recess.
2. A feeder terminal testing arrangement as claimed in claim 1, wherein: the support ring is provided with a second through hole; the second slider is provided with a horizontal second sliding rod, and the second sliding rod penetrates through the second through hole.
3. A feeder terminal testing arrangement as claimed in claim 2, wherein: a first contact is fixed on one side of the mounting plate facing the support plate, a second contact opposite to the first contact is fixed on one side of the support plate facing the mounting plate, and the first contact and the second contact are respectively electrically connected with the tester;
liquid storage tanks filled with electrorheological fluid are symmetrically arranged on the inner side of the shell, each liquid storage tank is provided with a connecting pipe, a pipe orifice at one end of each connecting pipe is communicated with the inside of the corresponding liquid storage tank, so that the corresponding pipe is filled with the electrorheological fluid, a third sliding block in clearance fit with the inner wall of the corresponding connecting pipe is arranged at the other end of each connecting pipe, and the third sliding block is made of rubber; one side, far away from the liquid storage tank, of the third sliding block is fixedly connected with a movable rod axially parallel to the connecting pipe, the other end of the movable rod is fixedly connected with clamping pieces, the tester is located between the symmetrically arranged clamping pieces, and the clamping pieces are used for clamping and fixing the tester; a fourth spring is sleeved on the outer surface of the movable rod, and two ends of the fourth spring are respectively and fixedly connected with the clamping piece and the connecting pipe;
the second contact and the tester are respectively electrically connected with the electrorheological fluid in the liquid storage tank;
the top of the shell is provided with an opening, and the opening is provided with a cover body matched with the opening.
4. A feeder terminal testing arrangement as claimed in claim 3, wherein: a horizontal placing plate is symmetrically fixed on the inner side of the shell, and the tester is placed on the placing plate;
the clamping piece is composed of a first clamping strip, a second clamping strip and a third clamping strip which are parallel to the placing plate; the movable rod is fixed in the middle of the second clamping strip, two ends of the second clamping strip are respectively connected with the first clamping strip and the third clamping strip in a right angle mode, and the first clamping strip and the third clamping strip are located on the same side of the second clamping strip; the tester is located between the first card strip and the third card strip.
5. A feeder terminal testing arrangement as claimed in claim 4, wherein: the second clamping strip is provided with a second slide rail perpendicular to the first clamping strip and a plurality of threaded holes which are parallel to the second slide rail and are uniformly distributed;
the third clamping strip is provided with a sliding groove and a bolt hole which are matched with the second sliding rail, and the threaded hole is connected with the bolt hole through a bolt.
6. A feeder terminal testing arrangement as claimed in claim 5, wherein: the first spring, the second spring, the third spring and the fourth spring are all compression springs.
7. A feeder terminal testing arrangement as claimed in claim 3, wherein: the liquid storage tank body is made of an insulating material.
8. A feeder terminal testing arrangement as claimed in claim 3, wherein: one side of the cover body is hinged with the shell, and the other side of the cover body is connected with the shell in a buckling mode.
9. A feeder terminal testing arrangement as claimed in claim 1, wherein: the bottom of the shell is also provided with a support, and the support is connected with the rotating shaft and used for supporting the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210785430.3A CN114839406B (en) | 2022-07-06 | 2022-07-06 | Feeder terminal testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210785430.3A CN114839406B (en) | 2022-07-06 | 2022-07-06 | Feeder terminal testing arrangement |
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| CN114839406A CN114839406A (en) | 2022-08-02 |
| CN114839406B true CN114839406B (en) | 2022-10-04 |
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| CN114366888A (en) * | 2021-12-29 | 2022-04-19 | 肖荣 | Hematodialysis conversion device for nephrology department in bed |
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| US9819196B2 (en) * | 2015-06-05 | 2017-11-14 | I Shou University | Power distribution system capable of automatic fault detection in a distributed manner and method thereof |
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| JPH09320403A (en) * | 1996-05-29 | 1997-12-12 | Toko Denki Kk | Weather resistant device for power distribution equipment |
| US5996608A (en) * | 1998-07-31 | 1999-12-07 | Hunter Industries, Inc. | Diaphragm valve with filter screen and movable wiper element |
| CN104600658A (en) * | 2013-10-31 | 2015-05-06 | 通用电气公司 | Power distribution systems and methods of testing a power distribution system |
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| CN114839406A (en) | 2022-08-02 |
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