CN206774682U - A kind of use for laboratory is in the locking-type discharging rod of capacitor discharge - Google Patents

Abstract

The utility model discloses a kind of use for laboratory in the locking-type discharging rod of capacitor discharge, including probe system, interior extension bar, external connecting rods and holding extension bar component.It is detachable integrated design that wherein probe system, which includes electric discharge hook, hook storehouse, high pressure full skirt and resistance storehouse, probe system,；Holding extension bar includes electromagnet, electro-magnet switch and magnet bar；Pass through the opening and closing of electro-magnet switch, it is possible to achieve the unlocking for the hook that discharges and lock function switching；It is component that the present apparatus, which employs insulation full skirt, banana plug and high-power resistor, suitable for super capacitor more harsh in laboratory and high-voltage capacitance electric discharge and cost relative reduction；The present apparatus can realize it is straight put and both of which is put in resistance, can be with unattended automatic discharging, using simple, safe and efficient after discharging rod locks to electrode for capacitors；The present apparatus is designed using small size component assembled, is convenient for carrying installation；Present apparatus design science is reasonable, and a variety of use patterns have opened up the function of discharging rod significantly.

Description

A kind of use for laboratory is in the locking-type discharging rod of capacitor discharge

Technical field：

The present utility model is related to a kind of laboratory power equipment, and particularly a kind of use for laboratory is in capacitor discharge Locking-type discharging rod.

Background technology：

In the laboratory of colleges and universities and research institute, if in terms of research high-energy physics, will often use various The electric discharge of capacitor, particularly high-voltage capacitor and ultracapacitor is dangerous.Being stored to capacitor and It is required for first thoroughly discharging to capacitor before charging, but electric discharge instrument on the market is discharging rod at present, is largely deposited In problems with：1. discharging rod only has repeat function, playing function is not hindered.Straight put is exactly that directly capacitor discharges over the ground, resistance Put is exactly to be discharged over the ground again after capacitor is lost by high-power resistor.For fully charged ultracapacitor, if with directly putting Discharged, capacitor meeting pulsed discharge, in the case of heavy current impact, be easily damaged capacitor internal structure division, Slow down capacitor life-span, the measured ultracapacitor of matter is all more than ten thousand yuan, and this results in serious property loss, and discharges When there is arc light, with spark and loud noise, threaten the personal safety of experimenter；2. in order to save discharging rod volume, using taking out The design of insulated connecting rod is drawn, is that innermost layer insulating bar is thinner the defects of this design, and high-power resistor is all heavier, institute What is typically connected with the discharging rod of this pull insulated connecting rod formula is small-power discharge resistance, and such small-power resistance holds very much Easily by the ultracapacitor thermal breakdown in high-energy physics experiment, and it is non-dismountable after power resistor damage；3. discharging rod discharges The shape of probe is usually U types or needle-like, and such design shortcoming is that people needs to hold discharging rod always, and if people The dynamics and angle of control are improper, easily cause the loose contact of probe and electrode for capacitors；4. put for high-voltage capacitor Electricity discharging rod design, in general put probe making it is coarse, easily cause the secondary discharge of high-voltage arc, and high pressure What the insulating bar of discharging rod typically made longer is also not easy to store.

The present utility model from upper angle, devise a kind of portability is strong, versatility is good, it is quick detachable, repeat Usability is high, high-power resistor carrying capacity is strong, directly puts and hinder the locking-type discharging rod for putting double selection and preventing poor contact, overall For save manpower, improve personal safety, and for the laboratory discharging rod of the thousands of members of price, save into This.

The content of the invention：

Invention thinking is as follows：

Retain the major advantage of discharging rod design currently on the market, for example reduce volume, strengthen portability；Directly put and resistance is put It is available；Insulating bar uses the material of good insulation preformance, such as bakelite, polyethylene etc.；Discharging rod probe uses electric conductivity Good material, such as：Brass, stainless steel.

Improve break-through point and be that outstanding idea at present on the market is not deepened, for example reduce volume and be not necessarily intended to use pull Formula, it is exactly that can not carry the big high-power resistor of weight the shortcomings that drawing and pulling type.If it is 30-35mm, single-unit by diameter range value Length range value is that 300-400mm insulating bar improves the stress of insulating bar using two-stage threaded engagement can；Insulating materials Use glass fiber reinforced epoxy resin base complex material and increase insulation full skirt can weaken high pressure creepage phenomenon with And insulating bar it is long the problem of；Conductive material selects corronil, it is possible to alleviate brass is oxidizable, stainless steel electric conductivity not Enough superior situations；Discharging rod integrally solves loose contact phenomenon using locking-type structure can, saves manpower and reduce dangerous The occurrence of.

Technical scheme of the present utility model is as follows：

A kind of use for laboratory is in the locking-type discharging rod of capacitor discharge, it is characterised in that：This kind of discharging rod include electric discharge hook, Hook storehouse, insulation full skirt, resistance storehouse, straight put banana plug female and resistance puts banana plug female, external connecting rods and interior extension bar, holds and connect Bar and earthed system；Described insulation full skirt and hook storehouse are integrative-structures；Include electric discharge hook, spring, ripple in described hook storehouse Line tube cover plate, bellows and battery lead plate；There are two high-power resistors and resistance orlop end there are two in described resistance storehouse Banana plug female is put in resistance；Described external connecting rods are connected through a screw thread；Described interior extension bar is connected through a screw thread；Described holding Extension bar includes magnet bar, electromagnet and electro-magnet switch, and magnet bar is connected through a screw thread with interior extension bar, hold extension bar with it is external Bar is connected through a screw thread；Described earthed system includes banana plug male and ground wire；Electric discharge hook in described hook storehouse and Bellows cover plate can move along Impact direction, and battery lead plate can not move, and hook Cang Yuanhutai is fixed on hook the top of the warehouse；Described Bellows both ends are respectively welded in bellows cover plate bottom and electrode plate top；Described electromagnet is opened in electro-magnet switch When, caused high-intensity magnetic field can make magnet bar by repulsive force.

Described external connecting rods are hollow structures, and external connecting rods outer dia value range is 30-35mm, external connecting rods inner hole diameter It is 8-10mm with interior extension bar outer dia value range, interior extension bar can move in chute inside external connecting rods along Impact direction, outside The length range value that extension bar and interior extension bar often save is 300-400mm, and external connecting rods have three sections, and interior extension bar has 4 sections, and holding extension bar has 1 Section, because high-power resistor heavier-weight, body of rod total length 2m or so is convenient.

Described electric discharge hook, bellows cover plate and battery lead plate uses corronil material, and spring and bellows are good Conductor.

Described hook Cang Yuanhutai, hook storehouse, resistance storehouse, external connecting rods, interior extension bar and holding extension bar is increased using glass fibre Strong epoxy resin-matrix composite materials.

Described external connecting rods are connected through a screw thread, and the both ends screw thread of external connecting rods includes one-level negative thread, two level negative thread, one Level male thread and two level male thread, step of threads diameter are more than the two level diameter of thread, and the two level diameter of thread is more than inscribed shank diameter, External connecting rods tie point is formed by the occlusion respectively between step of threads and two level screw thread between external connecting rods.

Described resistance the top of the warehouse, which has two directly to put banana plug female and bottom, has two resistances to put banana plug female, Connect-disconnect structure can be formed with the banana plug male on ground wire, it is so convenient to switch straight mode playback and resistance mode playback.

Nature extended configuration is in when spring in described hook storehouse does not stress, electric discharge hook is formed with hook Cang Yuanhutai and locked State, when opening electro-magnet switch, repulsive force that magnet bar is provided by electromagnet, and by interior extension bar in outer extension bar chute Position movement transfer force to bellows cover plate, the repulsive force that electromagnet provides is more than the deformation power of spring, and electric discharge hook stretches out, Spring-compressed, bellows elongation, forms unlocking condition.

Described electric discharge hook, bellows cover plate, bellows are connected with battery lead plate and are conductor, so as to by the perfume (or spice) of ground wire Straight on any of several broadleaf plants plug male insertion battery lead plate puts banana plug female and just forms direct electric discharge.

Described electric discharge hook, bellows cover plate, bellows, battery lead plate are connected with high-power resistor, so as to by ground wire The resistance of banana plug male insertion high-power resistor afterbody puts banana plug female and just forms conductive discharge.

Described hook Cang Yuanhutai and hook storehouse are detachable connections, convenient to the element replacement in hook storehouse and maintenance, dress The resistance storehouse bottom panel for having two resistances to put banana plug female is dismountable, facilitates the replacing of resistance.

As further optimization of the present utility model, described electric discharge hook uses corronil material, and discharges The head of hook uses small spherical structure, and coupler body part uses polishing grinding, avoid causing when discharging to high-voltage capacitor sparking and Phenomenon of arc discharge.Hook Cang Yuanhutai is insulator, but is directly contacted with electrode for capacitors, also to carry out rounded at the edge design, accomplish Glabrous pierces.

As further optimization of the present utility model, described hook storehouse, resistance storehouse edge also carry out fillet design, kept away Exempt from jagged and corner angle, cause the arcing of capacitor to be discharged, and insulated umbrella skirt will also polish and increase effective area, and then Weaken creepage phenomenon and reduce the effective cross-section that capacitor discharges towards human body direction.

As further optimization of the present utility model, described banana plug male and banana plug female are on the one hand It is the conventional Interface Terminal of high-tension electricity, if on the other hand if it happens banana plug male and banana plug female contact not Good, banana plug male can come off inside banana plug female in time, be easy to experimenter to find potential safety hazard early.

As further optimization of the present utility model, described bellows both ends are respectively welded in bellows cover plate bottom Portion and electrode plate top, increase by two cylindrical type corronil metallic objects in electrode plate top, positioned at bellows interior, metallic object Height be equal to length of bellows when not extending, effect is conductive and prevents that bellows from excessively being extruded, for the ease of ripple Pipe is taken a breath in telescopic process, and air-vent is designed in metallic object and battery lead plate.

It is welded to as further optimization, described electric discharge hook of the present utility model on a rectangular metal body, Both are integrally formed, metallic object and copper hook can only in hook storehouse one-dimensional movement up and down, avoid the trouble that hook rotating band comes of discharging.

Brief description of the drawings：

Fig. 1 is dimensional structure diagram of the present utility model；

Fig. 2 is the part sectioned view inside hook storehouse of the present utility model；

Fig. 3 is the part sectioned view in resistance storehouse of the present utility model；

Fig. 4 is the part sectioned view of the present utility model when interior extension bar and external connecting rods connect respectively；

Fig. 5 is the part sectioned view that magnet bar of the present utility model is ostracised when causing interior extension bar movement；

Fig. 6 is the dimensional structure diagram of earthed system of the present utility model；

Fig. 7 is the three-dimensional effect diagram in hook storehouse of the present utility model；

Fig. 8 is the three-dimensional effect diagram in resistance storehouse of the present utility model；

In figure：1- electric discharge hooks；2- hooks storehouse；3- insulation full skirts；4- resistance storehouse；Banana plug female is put in 5- resistances；6- external connecting rods Tie point；7- one-level extension bars；8- two level extension bars；9- three-level extension bars；10- holds extension bar；11- electro-magnet switch；12- is grounded； 13- banana plug males；14- directly puts banana plug female；15- hooks Cang Yuanhutai；16- bellows cover plates；17- bellowss；18- High-power resistor male mating hole；19- negative threads；Extension bar in 20-；21- high-power resistor male mating holes；23- bellowss； The springs of 24- first；25- second springs；Extension bar in 26-；27- magnet bars；28- electromagnet；29- one-level negative threads；30- two levels are cloudy Screw thread；31- external connecting rods tie points；32- two level male threads；33- male threads；34- one-level male threads；Extension bar tie point in 35-； 36- directly puts banana plug female；37- high-power resistor males；38- high-power resistors；39- probe external connecting rods；Banana is put in 40- resistances Plug female；41- high-power resistors；42- battery lead plates；43- air-vents.

Embodiment：

Below in conjunction with the accompanying drawings to a kind of use for laboratory of the present utility model in the locking-type discharging rod of capacitor discharge make into One step describes in detail.

As shown in figure 1, the discharging rod includes electric discharge hook 1, hook storehouse 2, insulation full skirt 3, resistance storehouse 4, straight puts banana plug mother First 14,36 and resistance put banana plug female 5,40, external connecting rods 7,8,9 and interior extension bar 20,26, hold extension bar 10 and ground connection system System, insulation full skirt 3 are integrative-structures with hook storehouse 2, and earthed system includes banana plug male 13 and ground wire 12.Such as Fig. 2 and Fig. 5 It is shown, including electric discharge hook 1, spring 24,25, bellows cover plate 16, bellows 17,23 and electrode in the hook storehouse 2 of the discharging rod Plate 42, electric discharge hook 1 and bellows cover plate 16 in hook storehouse 2 can move along Impact direction, and battery lead plate 42 can not move, hook storehouse Circular arc platform 15 is fixed on the top of hook storehouse 2；Electric discharge hook 1, bellows cover plate 16 and battery lead plate 42 use corronil material, bullet Spring 24,25 and bellows 17,23 are good conductor, and the spring 24,25 in hook storehouse 2 is in nature extended configuration when not stressing, and puts Electric hook 1 forms lock-out state with hook storehouse circular arc platform 15, and when opening electro-magnet switch 11, magnet bar 27 is provided by electromagnet 28 Repulsive force, and bellows cover plate 16 is transferred force to by position movement of the interior extension bar 20,26 in the chute of external connecting rods 7,8,9, The repulsive force that electromagnet 28 provides is more than the deformation power of spring 24,25, and electric discharge hook 1 stretches out, and spring 24,25 compresses, bellows 17th, 23 elongation, unlocking condition is formed, hook storehouse circular arc platform 15 and hook storehouse 2 are detachable connections, conveniently to the element in hook storehouse more Change and safeguard, the bottom panel of resistance storehouse 4 for putting banana plug female 5,40 equipped with two resistances is dismountable, facilitates resistance Change.Hook storehouse circular arc platform 15 is insulator, but is directly contacted with electrode for capacitors, also to carry out rounded at the edge design, accomplish light Sliding impulse- free robustness.Bellows 17,23 both ends are respectively welded in the bottom of bellows cover plate 16 and the top of battery lead plate 42, in battery lead plate 42 Top increases by two cylindrical type corronil metallic objects, and inside bellows 17,23, the height of metallic object is equal to bellows 17th, 23 length when not extending, effect is conductive and prevents that bellows 17,23 from excessively being extruded, for the ease of bellows 17,23 Taken a breath in telescopic process, air-vent 43 is designed in metallic object and battery lead plate 42.Electric discharge hook 1 is welded to a rectangle gold Belong on body, both are integrally formed, and metallic object and coupler body one-dimensional movement up and down, the rotating band of hook 1 that avoids discharging can only come in hook storehouse Trouble.As shown in figure 3, there are two high-power resistors 38,41 and the bottom of resistance storehouse 4 to have two in the resistance storehouse 4 of the discharging rod Banana plug female 5,40 is put in individual resistance, and top, which has two directly to put banana plug female 14,36 and bottom, has two resistances to put banana Plug female 5,40, connect-disconnect structure can be formed with the banana plug male 13 on ground wire 12, so convenient switching directly puts mould Formula and resistance mode playback.As shown in Figure 4 and Figure 5, the external connecting rods 7,8,9 of the discharging rod are connected through a screw thread, and interior extension bar 20,26 is logical Threaded connection is crossed, holding extension bar 10 includes magnet bar 27, electromagnet 28 and electro-magnet switch 11, magnet bar 27 and interior extension bar 26 It is connected through a screw thread, holds extension bar 10 and be connected through a screw thread with external connecting rods 9, external connecting rods 7,8,9 are hollow structures, external connecting rods 7, 8th, 9 outer dia value ranges are 30-35mm, and the inner hole diameter of external connecting rods 7,8,9 and interior extension bar 20,26 outer dia value ranges are 8-10mm, interior extension bar 20,26 can move in the inside chute of external connecting rods 7,8,9 along Impact direction, external connecting rods 7,8,9 and inscribed The length range value that bar 20,26 often saves is 300-400mm, and external connecting rods 7,8,9 have three sections, and interior extension bar 20,26 has 4 sections, and holding connects Bar 10 has 1 section because high-power resistor 38,41 heavier-weights, body of rod total length 2m or so are convenient, external connecting rods 7,8,9, it is inscribed Bar 20,26 and holding extension bar 10 use glass fiber reinforced epoxy resin base complex material, and external connecting rods 7,8,9 pass through spiral shell Line connects, and the both ends screw thread of external connecting rods 7,8,9 includes one-level negative thread 29, two level negative thread 30, one-level male thread 34 and two level Male thread 32, step of threads diameter are more than the two level diameter of thread, and the two level diameter of thread is more than inscribed shank diameter, led between external connecting rods The occlusion respectively crossed between step of threads and two level screw thread forms external connecting rods tie point 6,31.

As shown in Figure 7 and Figure 8, the head of the electric discharge hook of the discharging rod uses small spherical structure, and coupler body part is beaten using polishing Mill, avoid causing sparking and phenomenon of arc discharge when discharging to high-voltage capacitor.Hook storehouse circular arc platform 15 is insulator, but directly with electricity Container electrode contacts, and also to carry out rounded at the edge design, accomplishes that Glabrous pierces, hook storehouse 2, the edge of resistance storehouse 4 also carry out fillet Design, avoids jagged and corner angle, causes the arcing of capacitor to be discharged, and the face of full skirt 3 of insulating will also polish and increase effectively Area, and then weaken creepage phenomenon and reduce the effective cross-section that capacitor discharges towards human body direction, banana plug male 13 and perfume The one side of any of several broadleaf plants plug female 14,36,5,40 is the conventional Interface Terminal of high-tension electricity, if on the other hand banana plug male 13 Can be in time from banana plug female in the event of loose contact, banana plug male 13 with banana plug female 14,36,5,40 14th, come off inside 36,5,40, be easy to experimenter to find potential safety hazard early.

A kind of use for laboratory of the present utility model is as follows in the application method of the locking-type discharging rod of capacitor discharge：

1：Take out all interior extension bars 20,26 to be threadedly coupled by male and female, finally by the male thread 33 and magnet of interior extension bar 26 The negative thread 19 of bar 27 connects, and pays attention to be connected firmly when connection；Also not overexerting, it is curved that interior extension bar occurs It is bent.

2：All external connecting rods 7,8,9 are passed sequentially through into one-level negative thread 29, two level negative thread 30, one-level male thread 34 and two Level male thread 32 connects, finally by the one-level the moon of the one-level male thread 34 of three-level extension bar 9, two level male thread 32 with holding extension bar 10 Screw thread 29, two level negative thread 30 are connected, and it is firmly suitable during connection to pay attention to.

3：The interior extension bar 20,26 connected is put into external connecting rods 7,8,9 with holding in extension bar 10 together with magnet bar 27 In portion's chute, wherein magnet bar 27 is placed on close to one end of holding extension bar 10, and determines that electro-magnet switch 11 is to disconnect.

4：Because hook storehouse 2 and resistance storehouse 4 are two parts of integrative-structure, now by popping one's head in the one of external connecting rods 39 One-level box thread 29, the two level box thread 30 of level male thread 34 and one-level extension bar 7 are connected successively, form external connecting rods tie point 6。

5：Ground wire 12 is grounded, banana plug male 13 is then inserted resistance and puts banana plug female 5,40.Experiment behaviour High pressure rubber gloves are taken as member, electro-magnet switch 11 is further opened, electric discharge hook 1 is ejected from hook storehouse 2, be now in out Lock status, after ticking the electrode of capacitor with electric discharge hook 1, electro-magnet switch 11 is closed, now the spring 24,25 in hook storehouse 2 is given The power that electric discharge hook 1 bounces back, guiding discharge hook 1 and hook storehouse circular arc platform 15 have firmly clamped electrode for capacitors, and here it is lock-out state. After electrode for capacitors is locked by a kind of use for laboratory of the present utility model in the locking-type discharging rod of capacitor discharge, experiment behaviour Work person need not continue hand-held discharging rod, and without worry loose contact after locking.

6：After general 1-5 minutes, experimental implementation person opens electro-magnet switch 11, unlocks discharging rod, and electric discharge probe is remote After electrode for capacitors, pull out resistance and put banana plug male 13 in banana plug female 5,40, and by banana plug male 13 Insertion is directly put in banana plug female 14,36, and then laboratory technician hooks the electric discharge hook 1 of locking-type discharging rod the electricity of capacitor again Pole, electro-magnet switch 11 is then shut off, now discharging rod is in the lock state, and it is small electric charge to being gathered in capacitor directly to put Thoroughly discharged.

7：After use, discharging rod is removed from capacitor.Discharging rod is divided into：Single-unit external connecting rods 7,8,9, single-unit Interior extension bar 20,26, holding extension bar 10, magnet bar 11, earthed system and probe 1,2,3,4, because the extreme length of single part No more than 50cm, therefore all parts can classify and put into tool box, and tool box had been positioned over the position of laboratory drying both Save space prevents discharging rod to be extruded, make moist again.

It the above is only preferred embodiment of the present utility model, it is noted that above-mentioned preferred embodiment is not It should be regarded as the model that should be limited with claim limitation of the present utility model, protection domain of the present utility model Enclose and be defined.For those skilled in the art, do not departing from spirit and scope of the present utility model, Some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection domain of the present utility model.

Claims (10)

1. a kind of use for laboratory is in the locking-type discharging rod of capacitor discharge, it is characterised in that：This kind of discharging rod includes electric discharge hook (1), hook storehouse (2), insulation full skirt (3), resistance storehouse (4), straight put banana plug female (14,36) and banana plug female is put in resistance (5,40), external connecting rods (7,8,9) and interior extension bar (20,26), hold extension bar (10) and earthed system；

Described insulation full skirt (3) and hook storehouse (2) are integrative-structures；

Include in described hook storehouse (2) electric discharge hook (1), spring (24,25), bellows cover plate (16), bellows (17,23) and Battery lead plate (42)；

There are two high-power resistors (38,41) and resistance storehouse (4) bottom there are two resistances to put banana plug in described resistance storehouse (4) Head female (5,40)；

Described external connecting rods (7,8,9) are connected through a screw thread；

Described interior extension bar (20,26) is connected through a screw thread；

Described holding extension bar (10) includes magnet bar (27), electromagnet (28) and electro-magnet switch (11), magnet bar (27) It is connected through a screw thread with interior extension bar (26), holds extension bar (10) and be connected through a screw thread with external connecting rods (9)；

Described earthed system includes banana plug male (13) and ground wire (12)；

Electric discharge hook (1) and bellows cover plate (16) in described hook storehouse (2) can move along Impact direction, battery lead plate (42) It can not move, hook Cang Yuanhutai (15) is fixed at the top of hook storehouse (2)；

Described bellows (17,23) both ends are respectively welded at the top of bellows cover plate (16) bottom and battery lead plate (42)；

For described electromagnet (28) when electro-magnet switch (11) is opened, caused high-intensity magnetic field can be repelled magnet bar (27) Power.

2. a kind of use for laboratory according to claim 1 is in the locking-type discharging rod of capacitor discharge, it is characterised in that described External connecting rods (7,8,9) be hollow structure, external connecting rods (7,8,9) outer dia value range is 30-35mm, external connecting rods (7,8,9) Inner hole diameter and interior extension bar (20,26) outer dia value range are 8-10mm, interior extension bar (20,26) can external connecting rods (7, 8th, 9) moved in internal chute along Impact direction, the length range value that external connecting rods (7,8,9) and interior extension bar (20,26) often save is 300-400mm, external connecting rods (7,8,9) have three sections, and interior extension bar (20,26) has 4 sections, and holding extension bar (10) has 1 section, because high power Resistance (38,41) heavier-weight, body of rod total length 2m or so are convenient.

3. a kind of use for laboratory according to claim 1 is in the locking-type discharging rod of capacitor discharge, it is characterised in that described Electric discharge hook (1), bellows cover plate (16) and battery lead plate (42) use corronil material, spring (24,25) and bellows (17,23) are good conductor.

4. a kind of use for laboratory according to claim 1 is in the locking-type discharging rod of capacitor discharge, it is characterised in that described Hook Cang Yuanhutai (15), hook storehouse (2), resistance storehouse (4), external connecting rods (7,8,9), interior extension bar (20,26) and hold extension bar (10) Use glass fiber reinforced epoxy resin base complex material.

5. a kind of use for laboratory according to claim 1 is in the locking-type discharging rod of capacitor discharge, it is characterised in that described External connecting rods (7,8,9) be connected through a screw thread, it is cloudy that the both ends screw threads of external connecting rods (7,8,9) includes one-level negative thread (29), two level Screw thread (30), one-level male thread (34) and two level male thread (32), step of threads diameter are more than the two level diameter of thread, two level screw thread Diameter is more than interior extension bar (20,26) diameter, and external connecting rods pass through stinging respectively between step of threads and two level screw thread between (7,8,9) Conjunction forms external connecting rods tie point (6,31).

6. a kind of use for laboratory according to claim 1 is in the locking-type discharging rod of capacitor discharge, it is characterised in that described Resistance storehouse (4) at the top of have two it is straight put banana plug female (14,36) and bottom have two resistances put banana plug female (5, 40), connect-disconnect structure can be formed with the banana plug male (13) on ground wire (12), it is so convenient to switch straight mode playback and resistance Mode playback.

7. a kind of use for laboratory according to claim 1 is in the locking-type discharging rod of capacitor discharge, it is characterised in that described Hook storehouse (2) in spring (24,25) nature extended configuration, electric discharge hook (1) and hook Cang Yuanhutai (15) shape are in when not stressing Into lock-out state, when opening electro-magnet switch (11), repulsive force that magnet bar (27) is provided by electromagnet (28), and by interior Position movement of the extension bar (20,26) in external connecting rods (7,8,9) chute transfers force to bellows cover plate (16), electromagnet (28) The repulsive force of offer is more than the deformation power of spring (24,25), and electric discharge hook (1) stretches out, spring (24,25) compression, bellows (17, 23) extend, form unlocking condition.

8. a kind of use for laboratory according to claim 1 is in the locking-type discharging rod of capacitor discharge, it is characterised in that described Electric discharge hook (1), bellows cover plate (16), bellows (17,23) be connected with battery lead plate (42) and be conductor, so as to will ground connection Straight banana plug female (14,36) of putting on banana plug male (13) the insertion battery lead plate (42) of line (12) is directly put with regard to forming Electricity.

9. a kind of use for laboratory according to claim 1 is in the locking-type discharging rod of capacitor discharge, it is characterised in that described Electric discharge hook (1), bellows cover plate (16), bellows (17,23), battery lead plate (42) be connected with high-power resistor (38,41), from And banana plug female is put in the resistance that the banana plug male (13) for being grounded (12) is inserted to high-power resistor (38,41) afterbody (5,40) just form conductive discharge.

10. a kind of use for laboratory according to claim 1 is in the locking-type discharging rod of capacitor discharge, it is characterised in that described Hook Cang Yuanhutai (15) and hook storehouse (2) be detachable connection, it is convenient to the element replacement in hook storehouse (2) and maintenance, be equipped with Resistance storehouse (4) bottom panel that banana plug female (5,40) is put in two resistances is dismountable, facilitates the replacing of resistance.