CN209014599U - A kind of transient state recording fault detector sampling terminal automatic electricity getting bayonet unit - Google Patents

Abstract

A kind of transient state recording fault detector sampling terminal automatic electricity getting bayonet unit, the opening and closing hanger including the automatic electricity getting buckle being fixedly connected in transient state recording fault detector sampling terminal and for opening or closing automatic electricity getting buckle；Wherein, induction electricity taking coil (3), coil limit film (4), coil fixing bolt (5), installation trigger shrapnel (6), improved mat (7), coil return spring (8), automatic electricity getting block button base (9) connect to form CT induction coil realization electric current current-taking function with (3).The utility model has the advantages that ceaselessly installation, easy to operate, installation speed is fast, low current takes electricity (being more than or equal to 5A).It solves the problems, such as to be rapidly assembled and disassembled fault detector sampling terminal in the case of prior art electrification, to reach quick, efficiently install purpose, the personal safety for having ensured operating personnel simultaneously, also provides support for grid stability.

Description

A kind of transient state recording fault detector sampling terminal automatic electricity getting bayonet unit

Technical field

The utility model belongs to the automatic electricity getting bayonet unit of power industry transient state recording fault detector sampling terminal, is to adopt It is taken with realizing that transient state recording fault detector sampling terminal is rapidly assembled and disassembled and realizes that electric current incudes under livewire work state The technology of electricity.

Background technique

With the development of China's smart grid, grid stability requires to be continuously improved, and online detection instrument is answered on a large scale The fault detector detection device important as distribution network on power distribution network is referred to by detecting distribution line failure electric current Show outlet, branch and the section of guilty culprit, provides great convenience for trouble-shooting.But it is existing during the installation process Relevant issues are more prominent.Existing automatic electricity getting transient state recording fault detector samples terminal installation, pulls formula using utilizing Upper half magnet in the upper half lantern ring of spring connection asks for electric coil with the intracorporal lower half magnet formation of lower case is located at, by certainly Take electricity to be powered work to lower case intracorporal transient state recording fault detector sampling terminal is located at, inside will be collected Signal, which is sent to, is located at not far collection box, is such as directly connected on utility poles；Electricity Department is sent signal to by collection box again Analysing terminal set by door.And existing this automatic electricity getting transient state recording fault detector sampling terminal installation must be adopted in mounting Take power failure mode when sample terminal, then climbed by operator to the position for getting at electric wire, manually pull open upper half lantern ring be linked into it is defeated The conducting wire of electric line, check it is errorless just return to ground, be then powered again.The primary significant deficiency of this structure is exactly installation sampling Terminal installation must have a power failure, this influences whether the normal electricity consumption of transmission line of electricity along power failure section；Followed by using peace of manually climbing Dress, it is both dangerous or time-consuming and laborious.

Summary of the invention

In order to not influence the normal electricity consumption of users, power transmission lines overhauling maintenance mostly use the operation mode that does not have a power failure into Row, i.e. livewire work.The purpose of this utility model is precisely in order to overcome the problems of the above-mentioned prior art, to general route event Barrier sampling terminal installation buckle structure improves, and so as to realize it under not power-off condition, fault detector samples terminal Be rapidly assembled and disassembled.Avoid traditional power failure mounting means bring economic loss and social influence.The utility model is still So keep entire sampling terminal constant, automatic electricity getting mode is constant, is still caught in transmission of electricity using pulling formula spring and pull open upper half lantern ring The conducting wire of route is simultaneously hung on conducting wire.But the utility model does not need to have a power failure, nor climbed with referring to personnel to transmission of electricity Upper lantern ring is pulled open with hand by the conducting wire of route, need to will only be sampled using an opening and closing hanger and be mounted on terminal feeding conducting wire. Equally, taking-up sampling terminal also depends on opening and closing hanger and removes terminal is sampled from conducting wire, and does not also need to have a power failure.

To achieve the goals above, the utility model used technical solution on the buckle structure of sampling terminal is:

A kind of transient state recording fault detector sampling terminal automatic electricity getting bayonet unit, including it is fixedly connected on the event of transient state recording Automatic electricity getting buckle in barrier indicator sampling terminal and the opening and closing hanger for opening or closing automatic electricity getting buckle；Wherein:

The automatic electricity getting buckle includes a shell and half ring set being connected on shell by pulling formula return spring, upper half Induction electricity taking coil is located in half ring set, and transient state recording fault detector sampling unit is located in shell, is equipped in case top Block button base, block button base structure is that Intermediate Gray semi arch two sides set platform, symmetrical two-by-two on the two sides platform of block button base Distribution is fixed with 4 spring frames；Formula snak link (1.1,1.2,1.3,1.4) is pulled using 4 to connect by spring fixed screw respectively It connects in 4 spring frames, 4 spring arms for pulling formula snak link are correspondingly arranged two-by-two and are pressed against the semi arch among block button base It is interior；In two spring frames that half ring set is hinged and connected in identical platform by return spring and hinged shaft, upper half incudes electricity taking coil It is fixed in half ring set using coil fixing bolt and is limited by being respectively provided at the coil limit film on the inside of 4 spring frames Position；A step is stretched out at upper half induction electricity taking coil both ends in half ring set, the lower half induction electricity taking coil being located in lower part of the housing Expose on platform at both ends；Incude electricity taking coil by upper half to connect to form CT induction coil reality with lower half induction electricity taking coil ring Existing electric current current-taking function；It is symmetrically arranged with protrusion in half ring set ridge two sides, resists and props up when for cooperating with the opening and closing hanger Half ring set supported out；

The opening and closing hanger includes that an internal diameter is greater than the cylinder of diameter of the housing and is fixed on compressing for cylinder inboard wall lower part Spring and the fixture block seat being connected on cylinder；It is symmetrically offered on cylinder to the crossed beam trunking of cylinder waist, is gone back on cylinder Symmetrically offer the vertically annular groove with crossed beam trunking；It is bolted fixture block respectively in the cylinder upper side for being located at two annular grooves Seat, opens up the groove for annular groove position of withing a hook at the end on fixture block seat, and fixture block seat upper end, which is located at groove two sides and is respectively equipped with, is higher by cylinder End face one is cut, and is set as a U-shaped link slot in described be higher by one section of this section, is hinged on U-shaped link slot and is connected to fixture block, fixture block End be equipped with a dog-ear stop head, be respectively provided with a fixture block in fixture block seat two sides, be equipped with altogether on two symmetrical fixture block seats Four fixture blocks, entire fixture block width are higher than body end surface, and when fixture block turns on the inside of cylinder, side bottom leans against body end surface On；Annular groove is symmetrical in U-shaped link slot lower position and is connected with stud, for blocking the upper protrusion of semi-ring set；It is being located at card Block wherein symmetrically offers bayonet lock strip-shaped hole on the cylinder of side, corresponds to the position of bayonet lock strip-shaped hole using a card in fixture block seat Pin pulls formula spring hinge and is connected with bayonet lock, and bayonet lock strip-shaped hole lower inside is located on fixture block seat and is equipped with a protruding fritter Stud is for blocking bayonet lock usually, and the side of bayonet lock is against bayonet lock strip-shaped hole top, and two bayonet locks are symmetrical set on cylinder.

The utility model pulls formula snak link at 4 and is wherein equipped with trigger shrapnel on any one of snak link, triggers Elastic slice cantilever is on semi arch.

The utility model is equipped with insulating bar engaging lug in cylinder lower part, for connecting with insulating bar.

The utility model is equipped with the improved mat of rubber material in semicircle segmental arc, and is laid in improved mat rubbing surface The friction of spike is followed closely, and is equipped with stud in improved mat bottom, the embedding hole for being opened up on semi arch.

Installing principle and installation operating process is that shell is first integrally placed in compressing on spring for cylinder, the alignment of half ring set Annular groove and groove, crossed beam trunking is also directed at semi arch at the same time；Half ring set on shell is made by pulling formula return spring Half ring set is opened, and the protrusion of half ring set ridge two sides compresses spring in compression and slides to the stud position on groove in rotation simultaneously It sets, withstands half ring set by stud in deployed position；Then four fixture blocks are gone to respectively on the inside of cylinder, then pulls formula bullet for 4 The spring arm of spring button rotates respectively and is buckled in the stop head of fixture block, and making the semi arch among the block button base on shell is in open Formula state；When entire cylinder drives semi arch up to move conducting wire (dotted portion in Fig. 2, Fig. 3) for withstanding transmission line of electricity, Shell is pressed down along compressing spring, and when pressing to certain position, 4 are pulled the spring arm of formula snak link while leaving four Fixture block covers conducting wire on the semi arch that rebounds, and the protrusion of half ring set also leaves stud during compressing spring-compressed at this time (18.3), under the action of the return spring, semi-ring set is back to home position, takes electric wire with the lower half induction being located in lower part of the housing Circle composition closing coil forms CT induction coil and realizes electric current current-taking function mode.

When needing to remove shell, the bayonet lock on the cylinder is swung to the right in bayonet lock strip-shaped hole, make two it is symmetrical The bayonet lock of setting pops up because bayonet lock pulls the effect of formula spring and is vertically stretched outside cylinder inboard wall, and shell is aligned under cylinder inboard wall and is compressed Pressing spring pulls formula spring due to the bayonet lock of bayonet lock and is merely able to rotate down, so when shell is pressed to lower than bayonet lock lower end position, Bayonet lock pulls formula spring in bayonet lock and acts on the block button base suppressed on shell next time, be stuck in entire shell can not in cylinder Wall.The opening and closing hanger is pulled downward at this time, makes to pull the spring arm of formula snak link together with return spring positioned at semi arch 4 Being strutted under the effect of the upper top of hard conducting wire by conducting wire makes conducting wire leave shell and its opening and closing hanger.

The process that bayonet lock is swung in bayonet lock strip-shaped hole to from left to right are as follows: be hinged and connected on the hinge pin axis and it using bayonet lock The loosening position that bayonet lock pulls formula spring is formed in bayonet lock strip-shaped hole to swing, and is stuck in stud when making bayonet lock lower part to left swing On, bayonet lock pops up when putting to the right.

In the operation for hanging up or removing, when grid locational is relatively high, cylinder lower part is connected to using insulating bar Engaging lug on, by operator insulating bar get at transmission line of electricity place directly operation mounting.

The utility model is by opening and closing hanger and insulating bar, under live state, can sample fault detector eventually Hold Fast Installation in sampling circuit, by the trigger shrapnel on opening and closing hanger, sampling terminal can pass through fixed spring cramp It automatically retracts, locking sampling terminal.

Automatic electricity getting supply sampling is whole in the case of the utility model can be realized low current (>=5A) by induction electricity taking coil End uses.

The utility model has the beneficial effects that being rapidly assembled and disassembled indicating fault in the case of solving prior art electrification Device samples the problem of terminal, to reach quick, efficiently install purpose, has ensured that the personal safety of operating personnel is also electricity simultaneously Net stability provides support.

Detailed description of the invention

Fig. 1 is the utility model schematic structural cross-sectional view；

Fig. 2 is the upper extension mode top view of Fig. 1；

Fig. 3 is the getting mode top view of Fig. 1；

Fig. 4 is the upper extension pattern diagram of Fig. 1；

Fig. 5 is opening and closing hanger schematic diagram main view；

Fig. 6 is the cross-sectional view of Fig. 5；

Fig. 7 is the top view of Fig. 5；

Fig. 8 is the A-A partial sectional view of Fig. 7；

Fig. 9 is the schematic cross-sectional view of shell；

Figure 10 is the top view of Fig. 9.

Specific embodiment

See Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of transient state recording fault detector sampling terminal automatic electricity getting bayonet unit, including consolidates Surely the automatic electricity getting being connected in transient state recording fault detector sampling terminal buckles and for opening or closing automatic electricity getting buckle Open and close hanger；Wherein:

See that Fig. 9, Figure 10, the automatic electricity getting buckle include a shell 10 and be connected to shell by pulling formula return spring 8 Half ring set 13 on 10, upper half induction electricity taking coil 3 are located in half ring set 13, transient state recording fault detector sampling unit 11 It is located in shell 10, block button base 9 is set as at the top of shell 10,9 structure of block button base is 9.1 two sides of Intermediate Gray semi arch It is symmetrical two-by-two on the two sides platform 9.2 of block button base 9 to be fixed with 4 spring frames 12 if platform 9.2；It is pulled using 4 Formula snak link 1.1,1.2,1.3,1.4 is connected in 4 spring frames 12 by spring fixed screw 2 respectively, and 4 are pulled formula snak link Spring arm be correspondingly arranged and be pressed against in the semi arch 9.1 among block button base 9 two-by-two；Half ring set 13 passes through return spring 8 In two spring frames 12 being hinged and connected in identical platform 9.2 with hinged shaft 22, upper half incudes electricity taking coil 3 using the fixed spiral shell of coil Bolt 5 is fixed in half ring set 13 and the coil limit film 4 by being respectively provided at 4 spring frames, 12 inside is limited；Half ring set A step 13.1 is stretched out at upper half induction 3 both ends of electricity taking coil in 13, the lower half induction electricity taking coil being located in 10 lower part of shell Expose on platform 9.2 at 15 both ends；Incude electricity taking coil 3 by upper half to connect to form CT with lower half induction 15 ring of electricity taking coil Induction coil realizes electric current current-taking function；It is symmetrically arranged with protrusion 13.1 in half ring set, 13 ridge two sides, for hanging with the opening and closing Frame resists and supports half ring set 13 of opening when cooperating；

See that Fig. 5, Fig. 6, Fig. 7, Fig. 8, the opening and closing hanger include that an internal diameter is greater than the cylinder 16 of 10 diameter of shell and consolidates It is scheduled on the fixture block seat 18 for compressing spring 17 and being connected on cylinder 16 of cylinder inboard wall lower part；It is symmetrically offered on cylinder 16 To the crossed beam trunking 16.1 of cylinder waist, the vertically annular groove 16.2 with crossed beam trunking 16.1 is also symmetrically offered on cylinder 16；? It is bolted fixture block seat 18 respectively positioned at the cylinder upper side of two annular grooves 16.2, opens up annular groove of withing a hook at the end on fixture block seat 18 The groove 18.1 of 16.2 positions, 18 upper end of fixture block seat, which is located at 18.1 two sides of groove and is respectively equipped with, to be higher by 16 end face one of cylinder and cuts, Described be higher by one section of this section is set as a U-shaped link slot 18.2, is hinged on U-shaped link slot 18.2 and is connected to fixture block 19, fixture block 19 end is equipped with the stop head 19.1 of a dog-ear, a fixture block 19 is respectively provided in 18 two sides of fixture block seat, in two symmetrical fixture blocks It being set altogether on seat 18 there are four fixture block 19, entire 19 width of fixture block is higher than 16 end face of cylinder, when fixture block 19 turns on the inside of cylinder, Side bottom leans against in body end surface；Annular groove 16.2, which is symmetrical with, in U-shaped 18.2 lower position of link slot is connected with stud 18.3, For blocking the protrusion 13.1 on half ring set 13；Bayonet lock item is symmetrically being offered on fixture block the seat 18 wherein cylinder 16 of side Shape hole 16.3 pulls the hinge of formula spring 20 using a bayonet lock in the position of the corresponding bayonet lock strip-shaped hole 16.3 of fixture block seat 18 and is connected to bayonet lock 21,16.3 lower inside of bayonet lock strip-shaped hole is located on fixture block seat 18 and is equipped with the stud 18.3 of a protruding fritter for putting down Bayonet lock 21 is often blocked, the side of bayonet lock 21 is against 16.3 top of bayonet lock strip-shaped hole, and two bayonet locks 21 are in symmetrically to set on cylinder 16 It sets.

The utility model is pulled formula snak link 1.1,1.2,1.3,1.4 at 4 and is wherein installed on any one of snak link There is trigger shrapnel 6,6 cantilever of trigger shrapnel is on semi arch 9.1.

The utility model is equipped with insulating bar engaging lug 14 in 16 lower part of cylinder, for connecting with insulating bar 23.

The utility model is equipped with the improved mat 7 of rubber material at 9.1 sections of semi arch, and equal in 7 rubbing surface of improved mat It is laid with the friction nail 7.1 of spike, stud 7.2 is equipped in 7 bottom of improved mat, for what is opened up on semi arch 9.1 On embedding hole 7.3.

Principle is installed and installation operating process is, first compressing the whole merging cylinder 16 of shell 10 on spring 17, semi-ring 13 alignment annular groove 16.2 of set and groove 18.1, crossed beam trunking 16.1 is also directed at semi arch 9.1 at the same time；Half on shell 10 Ring set 13 opens half ring set 13 by pulling formula return spring 8, and the protrusion 13.1 of half ring set, 13 ridge two sides is supported in compression 18.3 position of stud on groove 18.1 is slided in pressing spring 17 and simultaneously rotation, makes half ring set 13 in deployed position by stud 18.3 withstand；Then four fixture blocks 19 are gone into 16 inside of cylinder respectively, then pull formula snak link 1.1,1.2,1.3,1.4 for 4 The spring arm rotate and be buckled in the stop head 19.1 of fixture block 19 respectively, make the semicircle among the block button base 9 on shell 10 Arc 9.1 is in open；When entire cylinder 16, which drives semi arch 9.1 up to move, withstands the conducting wire 24 of transmission line of electricity, shell 10 are pressed down along compressing spring 17, and when pressing to certain position, 4 are pulled the bullet of formula snak link 1.1,1.2,1.3,1.4 Spring arm leaves four fixture blocks 19 simultaneously, covers conducting wire 24 on the semi arch 9.1 that rebounds, at this time the protrusion 13.1 of half ring set 13 Stud 18.3 is left in compressing 17 compression process of spring, under the action of return spring 8, half ring set 13 is back to home position, Closing coil formation CT induction coil, which is formed, with the lower half induction electricity taking coil 15 being located in 10 lower part of shell realizes that electric current takes electricity Functional mode.

When needing to remove shell 10, the bayonet lock 21 on the cylinder 16 is swung to the right in bayonet lock strip-shaped hole 16.3, Two symmetrically set bayonet lock 21 is set to pop up because bayonet lock pulls the effect of formula spring 20 and be vertically stretched outside 16 inner wall of cylinder, by shell 10 Alignment 16 inner wall of cylinder pushing compresses spring 17, pulls formula spring 20 due to the bayonet lock of bayonet lock 21 and is merely able to rotate down, so working as Shell 10 is pressed to lower than 21 lower end position of bayonet lock, and bayonet lock 21 is pulled the effect of formula spring 20 in bayonet lock and suppressed on shell 10 next time Block button base 9, make entire shell 10 that can not be stuck in 16 inner wall of cylinder.The opening and closing hanger is pulled downward at this time, makes to be located at Semi arch 9.14 spring arms for pulling formula snak link 1.1,1.2,1.3,1.4 are together with return spring 8 in the upper of hard conducting wire Being strutted under the effect of top by conducting wire makes conducting wire 24 leave shell 10 and its opening and closing hanger.

The process that bayonet lock 21 is swung in bayonet lock strip-shaped hole 16.3 to from left to right are as follows: be hinged and connected to hinge pin axis using bayonet lock 21 The loosening position for pulling formula spring 20 on 22 with its bayonet lock is formed in bayonet lock strip-shaped hole 16.3 to swing, and makes 21 lower part of bayonet lock It is stuck on stud 18.3 when to left swing, bayonet lock 21 pops up when putting to the right.

In the operation for hanging up or removing, when grid locational is relatively high, cylinder 16 is connected to using insulating bar 23 On the engaging lug 14 of lower part, the place directly operation mounting of transmission line of electricity is got in insulating bar 23 by operator.

The utility model can be sampled fault detector under live state by opening and closing hanger and insulating bar 23 Terminal Fast Installation is in sampling circuit, and by the trigger shrapnel 6 on opening and closing hanger, sampling terminal can pass through fixed spring cramp 1.1,1.2,1.3,1.4 automatic drawing back, locking sampling terminal.

Automatic electricity getting supply sampling is whole in the case of the utility model can be realized low current [>=5A] by induction electricity taking coil 3 End uses.

Specific embodiment of the present utility model is elaborated in conjunction with attached drawing above, but the utility model is not Be limited to above embodiment, within the knowledge of a person skilled in the art, can also do not depart from it is practical Various changes can be made under the premise of novel objective.

Claims (4)

1. a kind of transient state recording fault detector samples terminal automatic electricity getting bayonet unit, which is characterized in that including being fixedly connected on Automatic electricity getting buckle in transient state recording fault detector sampling terminal and the opening and closing hanger for opening or closing automatic electricity getting buckle； Wherein:

The automatic electricity getting buckle includes a shell (10) and the semi-ring being connected on shell (10) by pulling formula return spring (8) It covers (13), upper half induction electricity taking coil (3) is located in half ring set (13), and transient state recording fault detector sampling unit (11) is located at In shell (10), block button base (9) are equipped at the top of shell (10), block button base (9) structure is Intermediate Gray semi arch (9.1) two Side sets platform (9.2), symmetrical two-by-two on the two sides platform (9.2) of block button base (9) to be fixed with 4 spring frames (12)； It pulls formula snak link (1) using 4 to be connected in 4 spring frames (12) by spring fixed screw (2) respectively, 4 are pulled formula spring The spring arm of button is correspondingly arranged two-by-two and is pressed against in the intermediate semi arch (9.1) of block button base (9)；Half ring set (13) passes through back Position spring (8) and hinged shaft (5) are hinged and connected to two spring frames (12) on identical platform (9.2) Nei, and upper half incudes electricity taking coil (3) it is fixed in half ring set (13) using hinged shaft (5) and the coil limit film by being respectively provided on the inside of 4 spring frames (12) (4) it is limited；A step (3.1) are stretched out at upper half induction electricity taking coil (3) both ends in half ring set (13), are located at shell (10) Expose on platform (9.2) at lower half induction electricity taking coil (15) both ends in lower part；Through upper half induction electricity taking coil (3) under Half induction electricity taking coil (15) ring connects to form CT induction coil realization electric current current-taking function；In half ring set (13) ridge two sides pair Claim to be equipped with raised (13.1), resists and support half ring set (13) of opening when for cooperating with the opening and closing hanger；

The opening and closing hanger includes that an internal diameter is greater than the cylinder (16) of shell (10) diameter and is fixed on cylinder inboard wall lower part The fixture block seat (18) for compressing spring (17) and being connected on cylinder (16)；It is symmetrically offered on cylinder (16) to cylinder waist Crossed beam trunking (16.1), the annular groove (16.2) vertically with crossed beam trunking (16.1) is also symmetrically offered on cylinder (16)；In place It is bolted respectively fixture block seat (18) in the cylinder upper side of two annular grooves (16.2), fixture block seat opens up card of withing a hook at the end on (18) The groove (18.1) of annular groove (16.2) position, fixture block seat (18) upper end, which is located at groove (18.1) two sides and is respectively equipped with, is higher by cylinder (16) end face one is cut, and a U-shaped link slot (18.2) is set as in described be higher by one section of this section, on U-shaped link slot (18.2) Hinge is connected to fixture block (19), and the end of fixture block (19) is equipped with the stop head (19.1) of a dog-ear, is respectively set in fixture block seat (18) two sides There are a fixture block (19), is set altogether on two symmetrical fixture block seats (18) there are four fixture block (19), entire fixture block (19) width is higher than Cylinder (16) end face, when fixture block (19) turn on the inside of cylinder, side bottom is leaned against in body end surface；In U-shaped link slot (18.2) lower position is symmetrical with annular groove (16.2) and is connected with stud (18.3), for blocking the protrusion on half ring set (13) (13.1)；Bayonet lock strip-shaped hole (16.3) are symmetrically being offered on fixture block seat (18) the wherein cylinder (16) of side, in fixture block The position of seat (18) corresponding bayonet lock strip-shaped hole (16.3) pulls formula spring (20) hinge using a bayonet lock and is connected to bayonet lock (21), in fixture block It is located at bayonet lock strip-shaped hole (16.3) lower inside on seat (18) and is equipped with the stud (18.3) of a protruding fritter for usual It blocks bayonet lock (21), the side of bayonet lock (21) is against bayonet lock strip-shaped hole (16.3) top, and two bayonet locks (21) are on cylinder (16) It is symmetrical set.

2. a kind of transient state recording fault detector according to claim 1 samples terminal automatic electricity getting bayonet unit, feature It is: pulls formula snak link (1) at 4 and be wherein equipped with trigger shrapnel (6) on any one of snak link, trigger shrapnel (6) Cantilever is on semi arch (9.1).

3. a kind of transient state recording fault detector according to claim 1 samples terminal automatic electricity getting bayonet unit, feature It is: is equipped with insulating bar engaging lug in cylinder (16) lower part.

4. a kind of transient state recording fault detector according to claim 1 samples terminal automatic electricity getting bayonet unit, feature It is: is equipped with the improved mat (7) of rubber material in semi arch (9.1) section, and is laid with nail in improved mat (7) rubbing surface (7.1) are followed closely in the friction of shape, stud (7.2) are equipped in improved mat (7) bottom, for what is opened up on semi arch (9.1) On embedding hole (7.3).