CN208056176U - A kind of collosion-resistant post fire hydrant - Google Patents

Abstract

The utility model discloses a kind of collosion-resistant post fire hydrant,Including fire hydrant ontology,First guard ring,Second guard ring,Hollow copper pipe,Permanent magnet,Buffer spring,Driven steel ball and active steel ball,The hollow copper pipe,Permanent magnet,Buffer spring,Driven steel ball and active steel ball have several,Several hollow copper pipes are on the fire hydrant ontology,First guard ring is set in the outside of the hollow copper pipe,Several buffer springs connect hollow copper pipe outer end and the first guard ring inside,It is additionally provided with several permanent magnets on the inside of first guard ring,It is additionally provided with annular groove in the external circumferential of first guard ring,Several driven steel balls are located at several active steel ball interleaveds in the annular groove,Second guard ring is set in the outside of first guard ring,It is additionally provided with safety water mechanism on the fire hydrant ontology.Compared with prior art, the utility model has anti-extraneous the characteristics of hitting, fire hydrant is prevented to be destroyed.

Description

A kind of collosion-resistant post fire hydrant

Technical field

The utility model is related to fire hydrant fields, and in particular to be collosion-resistant post fire hydrant.

Background technology

Currently, outdoor post fire hydrant is predominantly disposed in public place, lack the monitoring of responsible person, and fire hydrant is Very important equipment during fire-fighting fire extinguishing, once fire hydrant by intentional or unintentional destruction will to disappear fire fire extinguishing by Serious influence, fire fighting truck cannot timely cannot obtain effectively quickly in make-up water source or the covered fire extinguishing region of fire hydrant Fire extinguishing, threaten the person and property safety of resident family around, and after fire hydrant is destroyed, can also cause in fire hydrant The outflow of water resource causes the waste of water resource.

In view of this, the applicant furthers investigate regarding to the issue above, there is this case generation then.

Utility model content

The main purpose of the utility model is to provide collosion-resistant post fire hydrants to prevent with anti-extraneous shock The characteristics of fire hydrant is destroyed.

In order to achieve the above objectives, the solution of the utility model is：

Collosion-resistant post fire hydrant, wherein including fire hydrant ontology, the first guard ring, the second guard ring, in several Empty copper pipe, several permanent magnets, several buffer springs, several driven steel balls and several active steel balls, in several Horizontal row is located on the fire hydrant ontology empty copper pipe at equal intervals, and first guard ring is set in the outer of the hollow copper pipe Portion, several buffer springs are arranged in a one-to-one correspondence with several hollow copper pipes and connect hollow copper pipe outer end and the first protection respectively Circle inside, the first guard ring inside are additionally provided with several permanent magnets that arrangement is corresponded with several hollow copper pipes, often Connect on the inside of the outer end of one permanent magnet and the first guard ring, the inner end of each permanent magnet across the buffer spring and be embedded with In the pipe of its corresponding hollow copper pipe, it is additionally provided with annular groove in the external circumferential of first guard ring, several driven steel Pearl is located at several active steel ball interleaveds in the annular groove, and second guard ring is set in anti-described first The outside of guard ring, the inside of second guard ring are rotatablely connected with several active steel ball universal joints, the fire hydrant ontology On be additionally provided with safety water mechanism, the safety water mechanism is located in the fire hydrant ontology.

Further, the collosion-resistant post fire hydrant further includes interior ball link, outer spherical connector, water pipe And buffer unit, the interior ball link are equipped with first through hole, the outer spherical connector is equipped with and first through hole The second through-hole being correspondingly arranged, the interior ball link are located at the lower part of the fire hydrant ontology and connect with fire hydrant ontology It is logical, the outer spherical connector and be interior ball link universal joint rotation connection and the outer spherical connector with it is interior it is spherical even Fitting is connected to by first through hole with the second through-hole, and the water pipe is located at the lower part of the outer spherical connector and and ectosphere Shape connector is connected to, and the buffer unit is located at the lower part of the fire hydrant ontology and is set in the outer spherical connector and interior The outside of ball link, the buffer unit include several springs and several annular magnets, several annular magnets Stacked on top is arranged, and each spring is used to connect two neighbouring annular magnets, and the annular magnet includes symmetrical point The poles N and the poles S of cloth, the polarity of neighbouring annular magnet the same side are in be reversed.

Further, the safety water mechanism includes worm gear, worm screw, rectangular magnetic patch, valve rod, spool, positioning key and annular Limited block, the fire hydrant body upper part are additionally provided with external opening, and the rectangular magnetic patch is located in the external opening, the valve Core is fixedly connected with valve rod, and the ring limit block level is set on the valve rod, and the worm gear is equipped with worm wheel aperture and key Hole, the worm gear are set in by the worm wheel aperture on the valve rod, and the worm screw is located at the side on the ring limit block top Side, the positioning key match setting with the keyhole and are sticked up and down in the outside of the valve rod, and the lower part of the positioning key is supported The ring limit block is connect, the first work under free state is formed at the top that the worm gear is adsorbed to valve rod by rectangular magnetic patch Position, the worm gear not by rectangular magnetic patch adsorb and with worm screw cooperatively form it is in running order under second station.

Further, the collosion-resistant fire hydrant further includes the Wrench for opening for rotating the worm screw, the fire hydrant Two through holes of perforation fire hydrant ontology, the extending direction of the through hole and axial the one of the worm screw are additionally provided on ontology It causes, the worm screw further includes bar portion and threaded portion, and the both ends of the bar portion match respectively to be embedded on two through holes, the bar Portion is equipped with hexagonal indentations, includes hexagon convex block, drive link and handle on the Wrench for opening, and the two of the drive link End is connect with hexagon convex block and handle respectively, and the hexagon convex block matches setting with the hexagonal indentations.

Further, the quality of the driven steel ball is more than the quality of the active steel ball.

Further, second guard ring is connect with the active steel ball by the connecting rod, the connecting rod and the master Dynamic steel ball is rotatablely connected for universal joint.

Further, there are four the springs for connecting two neighbouring annular magnets, and four springs are spacedly distributed upper Under between adjacent two annular magnets.

Further, the length of the hollow copper pipe is longer than the length of the permanent magnet.

Further, the diameter of the buffer spring is consistent with the diameter of the hollow copper pipe.

With the above structure, the utility model is related to collosion-resistant post fire hydrant, pass through outermost second Guard ring at first puts up a resistance to extraneous impulsive contact force, and when external force hits fire hydrant, the second guard ring will by turning effort External force carries out the decomposition of part so that external force reduces the collision degree of fire hydrant ontology, and the second guard ring is driving master When dynamic steel ball carries out circular-rotation in annular groove, active steel ball collides driven steel ball, and sends power to driven steel ball, So that the second guard ring will not high speed rotation, generate heat so as to avoid the second guard ring high speed rotation, and then improve second The service life of guard ring, and under the action of buffer spring, hitting the external force of fire hydrant ontology will reduce and hollow Under the action of copper pipe and permanent magnet, collision of the external force to fire hydrant ontology will be further reduced, to substantially increase fire hydrant Crash-protective characteristics, compared with prior art, the utility model can greatly reduce being destroyed for outdoor post fire hydrant, improve The impact resistance of post fire hydrant.

Description of the drawings

Fig. 1 is the structural schematic diagram of collosion-resistant post fire hydrant involved in the utility model.

Fig. 2 is the overall structure vertical view of the utility model.

Fig. 3 is the internal structure schematic diagram of the utility model.

Fig. 4 is the connection structure vertical view of rectangular magnetic patch and external opening in the utility model.

Fig. 5 is the schematic diagram that driven steel ball and active steel ball are connect with annular groove in the utility model.

Fig. 6 is the magnetic distributed architecture schematic diagram of single annular magnet in the utility model.

Fig. 7 is annular magnet and the attachment structure schematic diagram after spring stress in the utility model.

Fig. 8 is the schematic enlarged-scale view that worm gear is in the first station in the utility model.

Fig. 9 is the schematic enlarged-scale view that worm gear is in second station in the utility model.

Figure 10 is the three-dimensional position structural schematic diagram of worm and gear in the utility model.

Figure 11 is the dimensional structure diagram of Wrench for opening in the utility model.

Figure 12 is specially to match spanner schematic diagram in the safety water mechanism of another embodiment of utility model.

Figure 13 is position view of the safety water mechanism in valve rod of another embodiment of the utility model.

Figure 14 be another embodiment of the utility model safety water mechanism in running fix block the first working condition knot Structure schematic diagram.

Figure 15 be another embodiment of the utility model safety water mechanism in running fix block the second working condition knot Structure schematic diagram.

Figure 16 is running fix block schematic diagram in the safety water mechanism of another embodiment of the utility model.

Figure 17 is in the safety water mechanism of another embodiment of the utility model second with dowel pin and for being moved through locating piece With schematic diagram.

Figure 18 is the safety water mechanism special secondary school of another embodiment in the utility model with spanner and the cooperation of safety water mechanism Schematic diagram.

In figure：

Fire hydrant ontology -1；Hollow copper pipe -11；External opening -12；Through hole -13；

First guard ring -2；Permanent magnet -21；Buffer spring -22；Annular groove -23；

Driven steel ball -24；Second guard ring -3；Active steel ball -31；Connecting rod -32

Interior ball link -41；First through hole -411；Outer spherical connector -42；

Second through-hole -421；Water pipe -43；Resetting spring -44；Annular magnet -45；

Valve rod -51；Spool -52；Worm gear -53；Worm wheel aperture -531；Keyhole -532；

Worm screw -54；Bar portion -541；Hexagonal indentations -5411；Threaded portion -542；

Positioning key -55；Ring limit block -56；Wrench for opening -6；Hexagon convex block -61；

Drive link -62；Handle -63；Rectangular magnetic patch -7；First circular block -81；

First through hole -811；Second circular block -82；Second through hole -821；

Guide plate -83；First pilot hole -831；Second pilot hole -832；Positioning device -84；

Anti-theft mobile block -841；First interference notch -8441；Second interference notch -8442；

Third interferes notch -8443；Castor -842；Retaining spring -843；

First positioning through hole -8412；Second Blind locating holes -8411；

Mounting groove -851；First matching hole -8511；Second matching hole -8512；

Specially match spanner -9；Handle portion -91；Function part -92；First matches dowel pin -93；

First interference part -931；Second interference part -932；Third interference part -933；

Five-pointed star main part -934；Second matches dowel pin -94.

Specific implementation mode

In order to which the technical solution of the utility model is explained further, below by specific embodiment come to the utility model into Row elaborates.

Coordinate X, Y indicate that the inward-outward direction of the utility model and upper and lower directions wherein coordinate X are directed toward outside direction respectively in figure, Coordinate Y point up to.

As shown in Fig. 1-18, collosion-resistant post fire hydrant, wherein including fire hydrant ontology 1, the first guard ring 2, Two guard rings 3, several hollow copper pipes 11, several permanent magnets 21, several buffer springs 22, several driven steel balls 24 with And several active steel balls 31, horizontal row is located on the fire hydrant ontology 1 several hollow copper pipes 11 at equal intervals, and described first Guard ring 2 is set in the outside of the hollow copper pipe 11, several buffer springs 22 respectively with several hollow copper pipes 11 one by one Be correspondingly arranged and connect 2 inside of 11 outer end of hollow copper pipe and the first guard ring, first guard ring, 2 inside be additionally provided with it is several A hollow copper pipe 11 corresponds several permanent magnets 21 of arrangement, the outer end of each permanent magnet 21 and 2 inside of the first guard ring The inner end of connection, each permanent magnet 21 passes through the buffer spring 22 and is embedded in the pipe of corresponding hollow copper pipe 11, Permanent magnet 21 is realized under the action of the first guard ring 2 and buffer spring 22 and is moved forward and backward in hollow copper pipe 11, when When one guard ring, 2 stress is moved to fire hydrant ontology, permanent magnet 21 will also be moved to the inside of hollow copper pipe 11, due to permanent magnetism There are magnetic field, magnetic fields can pass through the cross section of hollow copper pipe 11, during permanent magnet 21 moves inward, magnetic for 21 surrounding of iron Field passes through the magnetic flux outside hollow copper pipe 11 to increase, and magnetic field passes through the magnetic flux inside hollow copper pipe 11 to reduce, magnetic flux Variation will will produce induced current, and the magnetic field that induced current generates always hinders the variation in the magnetic field of permanent magnet 21, therefore can hinder Hinder the movement of permanent magnet 21, so, permanent magnet 21 is entered in hollow copper pipe 11 and will be obstructed, work of the external force to fire hydrant ontology 1 It will firmly become smaller, the anti-of fire hydrant is substantially increased under the cooperation of buffer spring 22, hollow copper pipe 11 and permanent magnet 21 Collision ability；Be additionally provided with annular groove 23 in the external circumferential of first guard ring 2, several driven steel balls 24 and several 31 interleaved of active steel ball is located in the annular groove 23, and second guard ring 3 is set in first guard ring 2 Outside, the inside of second guard ring 3 and several 31 universal joints of active steel ball are rotatablely connected, the second guard ring 3 by When to external force, the second guard ring 3 realizes external force resolution by the rotation of circumference, and fire hydrant sheet is acted on to directly reduce Power on body 1, and then the crash-protective characteristics of fire hydrant are improved, being damaged for fire hydrant is prevented significantly；Also, active steel ball 31 roll under the drive of the second guard ring 3 along annular groove 23, and active steel ball 31 will hit driven steel ball 24, and will be outer Power passes to driven steel ball 24, driven since the quality of the driven steel ball 24 is more than the quality of the active steel ball 31 Steel ball 24 and active steel ball 31 will stop after rotation by a small margin, avoid and led because of the sliding friction heat of conventional high rate The acceleration of the second guard ring 3 is caused to damage, the service life for substantially increasing the second guard ring 3 while also extends fire hydrant Service life.Safety water mechanism is additionally provided on the fire hydrant ontology 1, the safety water mechanism is located at the fire hydrant ontology 1 It is interior；The antitheft water conservation to fire hydrant is realized by the safety water mechanism.

Preferably, the collosion-resistant post fire hydrant further includes interior ball link 41, outer spherical connector 42, water flowing Pipeline 43 and buffer unit, the interior ball link 41 is equipped with first through hole 411, on the outer spherical connector 42 Equipped with the second through-hole 421 being correspondingly arranged with first through hole 411, the interior ball link 41 is located at the fire hydrant ontology 1 Lower part and be connected to fire hydrant ontology 1, the rotation of the outer spherical connector 42 and 41 universal joint of interior ball link connects It connects and the outer spherical connector 42 is connected to interior ball link 41 by first through hole 411 and the second through-hole 421, in the fire that disappears Bolt ontology 1 is under upright state, and the first through hole 411 could be connected to the second through-hole 421, when interior ball link 41 occurs When rotation, the second through-hole 421 will be blocked by interior ball link 41, and first through hole 411 and the second through-hole 421 will be corresponded to no longer Connection, therefore, when fire hydrant ontology 1 is driven the rotation of interior ball link 41 by external force and tilts, fire hydrant ontology 1 is not It is damaged and flow can be controlled and do not flow out outward, so, it can be played even if fire hydrant is destroyed irrecoverable Water conservation avoids the effect of the waste of water resource；The water pipe 43 is located under the outer spherical connector 42 Portion is simultaneously connected to outer spherical connector 42, and the buffer unit is located at the lower part of the fire hydrant ontology 1 and is set in described outer The outside of ball link 42 and interior ball link 41；The buffer unit include several resetting springs 44 and several Annular magnet 45, the setting of several 45 stacked on top of annular magnet, each resetting spring 44 are used to connect neighbouring two A annular magnet 45, the annular magnet 45 include the symmetrical poles N and the poles S, neighbouring 45 the same side of annular magnet Polarity in being reversed, there is certain attraction, when being collided by external force, fire hydrant between upper and lower two annular magnets 45 Ontology 1 rotates under the action of interior ball link 41, and annular magnet 45 misplaces, and connects the reset bullet of annular magnet 45 44 tension of spring is elongated, and generates the elastic force for restoring deformation, and the poles N or the poles S of 45 side of annular magnet after dislocation will be closer to The poles N or the poles S of 45 other side of annular magnet in lower direction disposed thereon, so two neighbouring annular magnets 45 occur The degree of dislocation is bigger, and the distance between same polarity is smaller, and the repulsive force of generation is also bigger, and 44 deformation of resetting spring Bigger, the power that resetting spring 44 restores deformation is also bigger；So being connected by buffer unit, interior ball link 41 and outer spherical Buffering and the weakening to external force are realized under the action of fitting 42, to improve the whole crash-protective characteristics of fire hydrant.

Preferably, the safety water mechanism includes worm gear 53, worm screw 54, rectangular magnetic patch 7, valve rod 51, spool 52, positioning key 55 and ring limit block 56,1 top of fire hydrant ontology is additionally provided with external opening 12, and the rectangular magnetic patch 7 is located at described In external opening 12, protection cap (not shown) is additionally provided on the rectangular magnetic patch 7, the spool 52 is fixed with valve rod 51 Connection, 56 level of the ring limit block are set on the valve rod 51, and the worm gear 53 is equipped with 53 hole of worm gear and keyhole 532, the worm gear 53 is set in by the worm wheel aperture 531 on the valve rod 51, and the worm screw 54 is located at the annular stop The side on 56 top of block, the positioning key 55 match setting with the keyhole 532 and are sticked up and down in the outside of the valve rod 51, The lower part of the positioning key 55 abuts the ring limit block 56, and the worm gear 53 is adsorbed to the upper of valve rod 51 by rectangular magnetic patch 7 Portion forms the first station under free state, and the worm gear 53 is not adsorbed by rectangular magnetic patch 7 and cooperatively formed with worm screw 54 Second station under in running order；In this way, in rectangular magnetic patch 7 under the absorption of worm gear 53, worm gear 53 is in the first station When, the worm gear 53 can not be driven to be rotated from external rotary worm 54, when raising protection cap and take out rectangular magnetic patch 7 When, worm gear 53 is moved to second station from the first station, and keyhole 532 coordinates with positioning key 55, then can by rotary worm 54 Realize rotation to worm gear 53, and the self-locking of 53 worm screw 54 of worm gear have the function of it is resistant to pressure, inside fire hydrant Hydraulic pressure is usually higher, then under the action of prolonged high hydraulic pressure, the internal structure of fire hydrant ontology 1 is damaged, so as to cause The poorly sealed and leak of fire hydrant.And 53 worm screw of worm gear, 54 structure can effectively prevent valve rod 51 from generating rotation, to offset Fiery bolt plays the role of safety water and preventing water leakage.

Preferably, the collosion-resistant fire hydrant further includes the Wrench for opening 6 for rotating the worm screw 54, the fire that disappears Two through holes 13 of perforation fire hydrant ontology 1, the extending direction of the through hole 13 and the worm screw are additionally provided on bolt ontology 1 54 axial direction is consistent, and the worm screw 54 further includes bar portion 541 and threaded portion 542, and the both ends of the bar portion 541 match respectively to be embedded On two through holes 13, the bar portion 541 is equipped with hexagonal indentations 5411, includes that hexagon is convex on the Wrench for opening 6 The both ends of block 61, drive link 62 and handle 63, the drive link 62 are connect with hexagon convex block 61 and handle 63 respectively, described Hexagon convex block 61 matches setting with the hexagonal indentations 5411, using the above structure, passes through the hexagon on Wrench for opening 6 The hexagonal indentations 5411 of convex block 61 and bar portion 541 carry out rotation of the cooperation realization to worm screw 54, to realize to fire hydrant Open, due to this class formation with tradition open fire hydrant method there are larger difference, tradition be all by fire hydrant most The external opening 12 on top directly rotates valve rod 51, and the utility model is then the through hole by the side of fire hydrant On worm screw 54 rotated, from position, attempt to fire hydrant carry out stolen water people do not know about structure, in this case it is not apparent that how to open Fire hydrant is opened, and the fire hydrant for opening the utility model has sequence requirement, therefore greatly protect fire hydrant, greatly The big anti-stealing water function for improving fire hydrant.

Preferably, another embodiment of the safety water mechanism is：The safety water mechanism includes the first circular block 81, the Two circular blocks 82, guide plate 83, positioning device 84, valve rod 51 and spool 52, first circular block 81 are embedded described It is rotatablely connected in two circular blocks 82 and with second circular block 82, the valve rod 51 is each provided at fire hydrant sheet with the spool 52 The inside of body 1, the valve rod 51 are connect with the spool 52, and the valve rod 51 is equipped with mounting groove 851, the positioning device 84, guide plate 83 and the second circular block 82 are set gradually from the bottom to top in the mounting groove 851, the realization pair of safety water mechanism The first of fire hydrant is protected again, is protected again to the second of fire hydrant by the realization of positioning device 84.Do not matching spanner 97 specially Under unlatching, the rotation to the first circular block 81 and the second circular block 82, the first circular block 81 and the second circular block 82 can only be realized Rotation be idle running, can not with the rotation of ovable valve stem 51, to realize fire hydrant is protected.

Preferably, the mounting groove 851 is equipped with the first matching hole 8511 and the second matching hole 8512, and described second matches The section for closing hole 8512 is Pentagram shape, and the Pentagram shape includes the first interference part 931, the second interference part 932, third Interference part 933 and five-pointed star main part 934, first interference part 931 be five-pointed star structure any one angle, described first Interference part 931, the second interference part 932 and third interference part 933 are each provided on the periphery of the five-pointed star main part 934, described Second interference part 932 is located at the side of the first circumferential interference part 931 of the five-pointed star main part 934, the third interference part 933 are located at the other side of the first circumferential interference part 931 of the five-pointed star main part 934, and first matching hole 8511 is cut Face is pentagon shaped.

Preferably, the positioning device 84 includes anti-theft mobile block 841, castor 842 and retaining spring 843, described Castor 842 is located at the lower section of the anti-theft mobile block 841 and is rotatablely connected with the anti-theft mobile block 841, the castor 842 abut with the bottom of the mounting groove 851, and the castor 842 drives the anti-theft mobile block 841 to move；The positioning Spring 843 connects one end of the valve rod 51 and the anti-theft mobile block 841, and the other end of the anti-theft mobile block 841 is oblique Face end, beveled end is equipped with the first interference notch 8441, second and notch 8442 and third is interfered to interfere notch 8443, described First interference notch 8441, second interferes notch 8442 and third interference notch 8443 to correspond to the first interference part 931, the respectively Two interference parts 932 and third interference part 933, since five angles of five-pointed star structure are uniform etc. on five-pointed star main part 934 Be spaced apart, thus using the five-pointed star structure that coordinate with the second matching hole 8512 specially match spanner 9 to safety water mechanism into When row is opened, being placed regardless of five-pointed star can realize that the first interference part 931 is corresponding with the first interference notch 8441, the Two interference parts 932 interfere the correspondence of notch 8443 with the corresponding and third interference part 933 of the second interference notch 8442 with third, To the movement of anti-theft mobile block 841, realizes the unlatching to the second matching hole 8512, facilitate the opening operation to fire hydrant；

Under the action of the retaining spring 843, the anti-theft mobile block 841 working condition the first working condition and Switch between second working condition of off working state, 8412 He of the first positioning through hole is additionally provided on the anti-theft mobile block 841 Second Blind locating holes 8411, when anti-theft mobile block 841 is in the first work working condition, first positioning through hole 8412 and institute 8511 Corresponding matching of the first matching hole is stated, when anti-theft mobile block 841 is in the second working condition, second Blind locating holes 8411 with 8511 Corresponding matching of the first matching hole, by specially match spanner 9 second with dowel pin 94 be inserted into the second circular block 82 The second through hole 821, pass through the second pilot hole 832, push the anti-theft mobile block 841 with dowel pin 94 by second, it is antitheft Movable block 841 under the action of castor 842 to the side of retaining spring 843 move, and then from the second working condition convert to First working condition after being opened to the second matching hole 8512, specially will be inserted into the with first on spanner 9 with dowel pin 93 First through hole 811 of one circular block 81 so that after first matches dowel pin 93 by the first through hole 811 and the first pilot hole 831 First matching hole 8511 is inserted by the first positioning through hole 8412, realizes the rotation to valve rod 51；Specially match with first on spanner 9 Dowel pin 93 and second has priority insertion sequence with dowel pin 94, it is necessary to first be inserted into second and match dowel pin 94, then be inserted into first and match Otherwise dowel pin 93 is formerly inserted into first with after dowel pin 93, first will connect with dowel pin 93 with the second Blind locating holes 8411, then Second is inserted into after dowel pin 94, second will be kept out with dowel pin 94 by anti-theft mobile block 841, can not be inserted into the second matching hole 8512 And rotation of the realization to valve rod 51, therefore in the case where layman will carry out stolen water to fire hydrant, understand wherein Principle will be unable to fire hydrant carry out stolen water, considerably increase the safety water performance of fire hydrant.

Preferably, the guide plate 83 is equipped with the first pilot hole 831 and the second pilot hole 832, first pilot hole 831 section is consistent with the section of first matching hole 8511, and the section of second pilot hole 832 coordinates with described second The section in hole 8512 is consistent, and after only to the first circular block 81 and the rotation of the second circular block 82, the first through hole 811 and first is led Connection will be no longer corresponded to hole 831, the second through hole 821 also will be corresponded to no longer with the second pilot hole 832 and is connected to, from fire hydrant Outside when being watched by the first through hole 811 and the second through hole 821, can not find the first pilot hole 831 and second Pilot hole 832, therefore also improve accordingly to the performance of fire hydrant safety water.

Preferably, first circular block 81 is equipped with the first through hole 811, and second circular block 82 is passed through equipped with second Through-hole 821, first through hole 811 match setting with the first matching hole 8511, second through hole 821 and described the The matching setting of two matching holes 8512.

Preferably, second guard ring 3 is connect with the active steel ball 31 by the connecting rod 32, the connecting rod 32 It is rotatablely connected for universal joint with the active steel ball 31, enables active steel ball 31 in the annular groove by universal joint connection It is rolled in 23.

Preferably, there are four the resetting springs 44 for connecting two neighbouring annular magnets 45, four resetting springs 44 It is spacedly distributed between two neighbouring annular magnets 45, four resetting springs 44 will play the recovery deformation of bigger Elastic force, to increase the cushioning effect to external force.

Preferably, the length of the hollow copper pipe 11 is longer than the length of the permanent magnet 21, therefore, in permanent magnet 21 in Without impinging on fire hydrant ontology 1 under the disengaging of empty copper pipe 11, to reduce the active force to fire hydrant ontology 1.

Preferably, the diameter of the buffer spring 22 is consistent with the diameter of the hollow copper pipe 11.

The product form and style of above-described embodiment and schema and non-limiting the utility model, any technical field The appropriate changes or modifications that those of ordinary skill does it all should be regarded as the patent category for not departing from the utility model.

Claims (9)

1. collosion-resistant post fire hydrant, which is characterized in that including fire hydrant ontology, the first guard ring, the second guard ring, several A hollow copper pipe, several permanent magnets, several buffer springs, several driven steel balls and several active steel balls, it is several Horizontal row is located on the fire hydrant ontology a hollow copper pipe at equal intervals, and first guard ring is set in the hollow copper pipe Outside, several buffer springs are arranged in a one-to-one correspondence with several hollow copper pipes and connect hollow copper pipe outer end respectively to be prevented with first On the inside of guard ring, several permanent magnets that arrangement is corresponded with several hollow copper pipes are additionally provided on the inside of first guard ring, It is connect on the inside of the outer end of each permanent magnet and the first guard ring, the inner end of each permanent magnet passes through the buffer spring and is embedded In the pipe of corresponding hollow copper pipe, it is additionally provided with annular groove in the external circumferential of first guard ring, several are driven Steel ball is located at several active steel ball interleaveds in the annular groove, and it is anti-that second guard ring is set in described first The outside of guard ring, the inside of second guard ring are rotatablely connected with several active steel ball universal joints, the fire hydrant ontology On be additionally provided with safety water mechanism, the safety water mechanism is located in the fire hydrant ontology.

2. collosion-resistant post fire hydrant as described in claim 1, which is characterized in that the collosion-resistant post fire hydrant is also Including interior ball link, outer spherical connector, water pipe and buffer unit, the interior ball link is equipped with first Through hole, the outer spherical connector are equipped with the second through-hole being correspondingly arranged with the first through hole, the interior ball link It is located at the lower part of the fire hydrant ontology and is connected to fire hydrant ontology, the outer spherical connector and the interior ball link Universal joint is rotatablely connected and the outer spherical connector is connected to interior ball link by the first through hole and the second through-hole, institute It states water pipe to be located at the lower part of the outer spherical connector and be connected to outer spherical connector, the buffer unit is located at described The lower part of fire hydrant ontology and the outside for being set in the outer spherical connector and interior ball link, the buffer unit include Several springs and several annular magnets, the setting of several annular magnet stacked on top, each spring are used in connection Under adjacent two annular magnets, the annular magnet includes the symmetrical pole N and the poles S, and neighbouring annular magnet is same The polarity of side is in be reversed.

3. collosion-resistant post fire hydrant as claimed in claim 2, which is characterized in that the safety water mechanism include worm gear, Worm screw, rectangular magnetic patch, valve rod, spool, positioning key and ring limit block, the fire hydrant body upper part are additionally provided with outside and open Mouthful, the rectangular magnetic patch is located in the external opening, and the spool is fixedly connected with valve rod, the ring limit block level set It is located on the valve rod, the worm gear is equipped with worm wheel aperture and keyhole, and the worm gear is set in the valve by the worm wheel aperture On bar, the worm screw is located at the side on the ring limit block top, and the positioning key matches setting with the keyhole simultaneously up and down It is sticked in the outside of the valve rod, the lower part of the positioning key abuts the ring limit block, and the worm gear is inhaled by rectangular magnetic patch The first station under free state is formed at the top for being attached to valve rod, and the worm gear is not adsorbed by rectangular magnetic patch and matches with worm screw Close formed it is in running order under second station.

4. collosion-resistant post fire hydrant as claimed in claim 3, which is characterized in that the collosion-resistant post fire hydrant is also Include the Wrench for opening for rotating the worm screw, two perforations of perforation fire hydrant ontology are additionally provided on the fire hydrant ontology Hole, the extending direction of the through hole is axial consistent with the worm screw, and the worm screw further includes bar portion and threaded portion, the bar The both ends in portion match respectively to be embedded on two through holes, and the bar portion is equipped with hexagonal indentations, is wrapped on the Wrench for opening Hexagon convex block, drive link and handle are included, the both ends of the drive link are connect with hexagon convex block and handle respectively, and described six Side shape convex block matches setting with the hexagonal indentations.

5. collosion-resistant post fire hydrant as described in claim 1, which is characterized in that the quality of the driven steel ball is more than institute State the quality of active steel ball.

6. collosion-resistant post fire hydrant as described in claim 1, which is characterized in that second guard ring and the active Steel ball is connected by connecting rod, and connecting rod is rotatablely connected with the active steel ball for universal joint.

7. collosion-resistant post fire hydrant as claimed in claim 2, which is characterized in that connect two neighbouring annular magnetics There are four the springs of iron, and four springs are spacedly distributed between two neighbouring annular magnets.

8. collosion-resistant post fire hydrant as described in claim 1, which is characterized in that the length of the hollow copper pipe is longer than institute State the length of permanent magnet.

9. collosion-resistant post fire hydrant as described in claim 1, which is characterized in that the diameter of the buffer spring with it is described The diameter of hollow copper pipe is consistent.