FR2458918A1 - Self closing compression claw connector - hooks onto overhead cable and comprises fixed body and moving jaw guided by four point contact with body - Google Patents

Self closing compression claw connector - hooks onto overhead cable and comprises fixed body and moving jaw guided by four point contact with body Download PDF

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Publication number
FR2458918A1
FR2458918A1 FR7914918A FR7914918A FR2458918A1 FR 2458918 A1 FR2458918 A1 FR 2458918A1 FR 7914918 A FR7914918 A FR 7914918A FR 7914918 A FR7914918 A FR 7914918A FR 2458918 A1 FR2458918 A1 FR 2458918A1
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FR
France
Prior art keywords
fixed body
movable jaw
jaw
clamp
wings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7914918A
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French (fr)
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FR2458918B3 (en
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR7914918A priority Critical patent/FR2458918A1/en
Publication of FR2458918A1 publication Critical patent/FR2458918A1/en
Application granted granted Critical
Publication of FR2458918B3 publication Critical patent/FR2458918B3/fr
Granted legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12—End pieces terminating in an eye, hook, or fork
    • H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail

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  • Clamps And Clips (AREA)

Abstract

The self-closing claw contact is for use with grounding and short circuiting links to overhead power cables. It consists of a fixed body (2) and a moving jaw (13) guided by four contact with the body. The cable is wedged between the body and the jaw. The greater the pull on the body the greater is the compression of the jaw on the cable. A stub at the base of the body may be connected to an insulating pole. The jaw is hook shaped with an extended neck acting against the insulated rod and a bell shaped tip where the cable is gripped. The jaw slides between two lugs in the body in a slotted window parallel to the front face of the body.

Description

L'invention a trait à une pince de contact a serrage par auto-blocage équipant, en particulier, des dispositifs de mise à la terre et en court-circuit depuis le sol de réseaux aériens. The invention relates to a self-locking clamping contact clamp fitted, in particular, with earthing and short-circuiting devices from the ground of overhead networks.

On connaît déjà des pinces de contact équipant, en particulier, des dispositifs de mise à la terre. Le serrage de ces pinces connues est réalisé en général, soit par des ressorts, soit par des vis de serrage. L'écoulement de l'intensité de court-circuit est consécutif, en dehors de la section électrique convenable des pinces, de la force de contact. Contact clamps are already known which equip, in particular, earthing devices. The tightening of these known clamps is generally carried out either by springs or by clamping screws. The flow of the short-circuit current is consecutive, outside the suitable electrical cross-section of the clamps, of the contact force.

I1 est connu que 1'nn ne peut pas dépasser un couple de serrage de 4 kg/mètre à distance par une perche isolante ayant une certaine longueur. Pour faire face à des court-circuits atteignant ou dépassant les quarante mille ampères/seconde, il est difficile et surtout incertain de réaliser cette puissance de serrage et de blocage des pinces de contact connues à ce jour à distance, à l'aide d'une perche isolante. It is known that 1'nn cannot exceed a tightening torque of 4 kg / meter at a distance by an insulating pole having a certain length. To cope with short circuits reaching or exceeding forty thousand amps / second, it is difficult and above all uncertain to achieve this clamping and blocking power of the contact clamps known to date remotely, using an insulating pole.

Or, on sait que, dans le cas d'un court-circuit, il y a automatiquement une traction momentanee qui s'exerce vers la terre et, par conséquent, il y a une traction momentanée sur la pince de contact. However, it is known that, in the case of a short circuit, there is automatically a momentary traction which is exerted towards the ground and, consequently, there is a momentary traction on the contact clamp.

La présente invention a pour but de fournir une pince de contact conçue de telle façon que l'on met à profit ce phénomene de traction momentanée exercée sur la pince de contact en cas d'un court-circuit. The object of the present invention is to provide a contact clamp designed in such a way that this phenomenon of momentary traction exerted on the contact clamp is taken advantage of in the event of a short circuit.

A cet effet, l'invention concerne une pince de contact a serrage par auto-blocage équipant, en particulier, des dispositifs de mise a la terre et en court-circuit depuis le sol de réseaux aériens caractérsée en ce qu'elle conr porte un corps fixe et une mâchoire mobile guidée en quatre points par le corps fixe, le conducteur étant coincé entre le corps fixe et la mâchoire mobile avec une force de serrage d'autant plus élevée que la force de traction exercée sur le corps fixe sera grande. To this end, the invention relates to a self-locking clamping contact clamp fitted, in particular, with earthing devices and in short-circuit from the ground with overhead networks, characterized in that it carries a fixed body and a movable jaw guided at four points by the fixed body, the conductor being wedged between the fixed body and the movable jaw with a clamping force the higher the greater the tensile force exerted on the fixed body.

Le poids du câble de branchement ou de la perche isolante exerce une traction sur le corps fixe, au moment de la pose de la pince, conforme à l'invention, sur le conducteur électrique aérien, ce qui assure le blocage automatique de la pince sur le conducteur électrique. La force de serrage augmente par la traction vers la terre. Cette force de serrage est fonction de la traction exercée vers la terre, traction qui, elle-même, est fonction de la puissance du court-circuit. The weight of the connection cable or of the insulating pole exerts a traction on the fixed body, at the time of the installation of the clamp, according to the invention, on the overhead electrical conductor, which ensures the automatic locking of the clamp on the electrical conductor. The clamping force increases by pulling towards the earth. This clamping force is a function of the traction exerted towards the ground, traction which, itself, is a function of the power of the short circuit.

L'invention sera bien comprise en se référant à la description suivante faite à titre d'exemple non limitatif et au dessin ci-annexé dans lequel - la figure I est une vue en élévation de la pince de contact conforme à l'invention, - la figure 2 est une vue latérale de la figure 1. The invention will be better understood by referring to the following description given by way of nonlimiting example and to the attached drawing in which - FIG. I is an elevation view of the contact clip according to the invention, - Figure 2 is a side view of Figure 1.

On se réfère aux deux figures. We refer to the two figures.

La pince 1 comporte un corps fixe 2 pourvu d'un axe 3 permettant soit un montage direct de la pince 1 sur une perche isolante 4, soit un montage amovible sur un embout approprié. Ce corps fixe 2, présentant sur ses chants avant et arriere 5, 6 des levres 7, 8 ayant une forme arrondie, comporte une fente 9 située dans l'axe médian 10 de la pince 1. De ce fait, on obtient deux ailes paralleles Il et 12 entre lesquelles on insere une mâchoire mobile 13. Chaque aile parallele 11, 12 présente une lumiere 14 sensiblement parallele au chant latéral 6. Dans cette lumiere 14 coulisse un axe transversal 15 faisant saillie par rapport aux faces externes 16, 17 de la mâchoire mobile 13. The clamp 1 comprises a fixed body 2 provided with a pin 3 allowing either a direct mounting of the clamp 1 on an insulating pole 4, or a removable mounting on an appropriate end-piece. This fixed body 2, having on its front and rear edges 5, 6 lips 7, 8 having a rounded shape, has a slot 9 located in the median axis 10 of the clamp 1. As a result, two parallel wings are obtained It and 12 between which a movable jaw is inserted 13. Each parallel wing 11, 12 has a lumen 14 substantially parallel to the lateral edge 6. In this lumen 14 slides a transverse axis 15 projecting relative to the external faces 16, 17 of the movable jaw 13.

La mâchoire mobile 13, ayant la forme approximative d'un crochet, conr porte une queue allongée 18 prenant appui contre la face externe 19 soit de la perche isolante 4, soit de l'embout approprié. Les faces externes 20, 21 de cette queue allongée t8 sont pourvues d'un épaulement 22 sensiblement parallele au chant 6 du corps fixe 2. A l'oppose de cette queue allongée 18, la mâchoire mobile 13 présente une extrémité 23 s'évasant vers l'extérieur, ce qui permet d'accrocher facilement la pince 1 sur le câble conducteur 24. Ce dernier est donc emprisonné entre la face externe 25 de la levre 7 du corps fixe 2 et la face interne 26 de I'extrémité évasée 23 de la mâchoire mobile 13. The movable jaw 13, having the approximate shape of a hook, conr carries an elongated tail 18 bearing against the external face 19 either of the insulating pole 4, or of the appropriate tip. The external faces 20, 21 of this elongated tail t8 are provided with a shoulder 22 substantially parallel to the edge 6 of the fixed body 2. Opposite this elongated tail 18, the movable jaw 13 has one end 23 widening towards the outside, which makes it easy to hang the clamp 1 on the conductive cable 24. The latter is therefore trapped between the external face 25 of the lip 7 of the fixed body 2 and the internal face 26 of the flared end 23 of the movable jaw 13.

Ainsi, la mâchoire 13 est guidée en quatre points. En premier lieu, par l'axe 15 solidaire de la mâchoire 13 coulissant dans les lumieres 14 du corps fixe 2, et, en second lieu, il y a coopération entre la face externe 27 des butées 22 de la mâchoire 13 et les levres 8 du corps fixe 2, ce qui permet d'obtenir un entrefer 28 évitant tout basculement intempestif de la mâchoire 13. Thus, the jaw 13 is guided at four points. Firstly, by the axis 15 integral with the jaw 13 sliding in the slots 14 of the fixed body 2, and, secondly, there is cooperation between the external face 27 of the stops 22 of the jaw 13 and the lips 8 of the fixed body 2, which makes it possible to obtain an air gap 28 avoiding any untimely tilting of the jaw 13.

Ces butées 22 sont dimensionnées de telle façon qu'elles agissent de maniera de contre-poids par rapport a l'axe 15 formant pivot de façon a maintenir 1 'extrémité 29 de la queue allongée 18 de la mâchoire 13 en contact avec la perche isolante 4 ou l'embout approprié sur lequel est monté le corps fixe 2.These stops 22 are dimensioned in such a way that they act as a counterweight relative to the axis 15 forming a pivot so as to keep the end 29 of the elongated tail 18 of the jaw 13 in contact with the insulating pole. 4 or the appropriate nozzle on which the fixed body 2 is mounted.

Lors du blocage de la pince 1 sur le conducteur 24, une action de force due au poids de ltensemble pince, perche isolante et câble de liaison a la ter re, s'exerce selon la fleche 30. Le conducteur 24 retiendra la mâchoire mobile 13 qui, selon unedéveloppante butée 22 - extrémité 29, viendra coincer le conducteur avec une force de serrage d'autant plus élevée que la force de traction 30 sera grande. La force de serrage exercée sur le conducteur 24 est, d'une part, définie par la forme arrondie des levres 7 et, d'autre part, par l'extré- mité 29.Cette extrémité 29, lors de la mise en place de la pince 1, fera ltef- fet d'un bras de levier avec commue pivot l'axe 15 et aura donc tendance à provoquer un blocage encore plus vigoureux sur le conducteur 24. Finalement, la mâchoire 13 est guidée entre les deux ailes 11, 12 du corps fixe 2. When the clamp 1 is blocked on the conductor 24, a force action due to the weight of the clamp assembly, insulating pole and ground connection cable, is exerted according to the arrow 30. The conductor 24 will retain the movable jaw 13 which, according to a developing stop 22 - end 29, will jam the conductor with a clamping force the higher the greater the traction force 30. The clamping force exerted on the conductor 24 is, on the one hand, defined by the rounded shape of the lips 7 and, on the other hand, by the end 29. This end 29, during the positioning of the clamp 1 will act as a lever arm with the pivot axis 15 and will therefore tend to cause an even more vigorous blocking on the conductor 24. Finally, the jaw 13 is guided between the two wings 11, 12 of the fixed body 2.

Le choc électrodynamique, provoqué au moment du court-circuit, a tendance a arracher la pince 1 du conducteur 24. Il se passe, a ce moment, une traction selon flèche 30 ayant comme effet le serrage du corps fixe 2 sur le conducteur 24. La mâchoire 13 aura comme effet de serrer également le conducteur 24. Ainsi, au moment des chocs électriques, est réalisés un autoblocage du conducteur 24 par la coopération du corps fixe 2 et de la mâchoire mobile 13. The electrodynamic shock, caused at the time of the short-circuit, tends to tear the clamp 1 from the conductor 24. At this moment, a pull along arrow 30 occurs, having the effect of clamping the fixed body 2 on the conductor 24. The jaw 13 will also have the effect of clamping the conductor 24. Thus, at the time of the electric shocks, self-locking of the conductor 24 is produced by the cooperation of the fixed body 2 and of the movable jaw 13.

Bien que l'invention ait été décrite à propos d'une forme de réalisation particuliere, il est bien entendu qu'elle n'y est nullement limitée et qu'on peut y apporter diverses modifications de formes, de matériaux et de conr binaisons de ces divers éléments sans pour cela s'éloigner du cadre et de l'esprit de l'invention. Although the invention has been described with reference to a particular embodiment, it is understood that it is in no way limited thereto and that it is possible to make various modifications to it in terms of shapes, materials and combinations of these various elements without departing from the scope and spirit of the invention.

Claims (7)

RevendicationsClaims 1. Pince de contact a serrage par auto-blocage équipant en particulier des dispositifs de mise a la terre et en court-circuit depuis le sol de réseaux aériens caractérisée en ce qu'elle comporte un corps fixe et une mâchoire mobile guidée en quatre points par le corps fixe, le conducteur étant coincé entre le corps fixe et la mâchoire mobile avec une force de serrage d'autant plus élevée que la force de traction exercée sur le corps fixe sera grande. 1. Self-locking clamping contact clamp fitted in particular with earthing and short-circuiting devices from the ground with overhead networks, characterized in that it comprises a fixed body and a movable jaw guided in four points by the fixed body, the conductor being wedged between the fixed body and the movable jaw with a clamping force the higher the greater the tensile force exerted on the fixed body. 2. Pince selon la revendication 1 caractérisée en ce que le corps fixe, présentant un axe soit pour son montage direct sur une perche isolante, soit pour un montage amovible sur un embout approprié, comporte sur ses chants avant et arriere des levres arrondies. 2. Pliers according to claim 1 characterized in that the fixed body, having an axis either for its direct mounting on an insulating pole, or for a removable mounting on an appropriate end piece, has on its front and rear edges rounded lips. 3. Pince selon la revendication 1 caractérisée en ce que le corps fixe comporte une fente située dans l'axe médian de la pince permettant d'obtenir deux ailes paralleles entre lesquelles on insere la mâchoire mobile. 3. Clamp according to claim 1 characterized in that the fixed body has a slot located in the median axis of the clamp making it possible to obtain two parallel wings between which the movable jaw is inserted. 4. Pince selon les revendications 1 et 3 caractérisée en ce que chaque aile comporte une lumiere sensiblement parallele au chant arriere. 4. Clamp according to claims 1 and 3 characterized in that each wing has a light substantially parallel to the rear edge. 5. Pince selon la revendication 1 caractérisée en ce que la mâchoire mobile ayant la forme approximative d'un crochet, comporte une queue allongée dont l'extrémité coopère avec la face externe soit de la perche isolante, soit de l'embout approprié, et une extrémité évasée coopérant avec le conducteur électrique. 5. Pliers according to claim 1 characterized in that the movable jaw having the approximate shape of a hook, comprises an elongated tail whose end cooperates with the external face either of the insulating pole, or of the appropriate tip, and a flared end cooperating with the electrical conductor. 6. Pince selon les revendications 1 et 5 caractérisée en ce que les faces externes de la queue allongée comportent une butée formant avec la lumière des ailes du corps fixe un entrefer et coopérant avec les levres arrondies carrière du corps fixe. 6. Pliers according to claims 1 and 5 characterized in that the external faces of the elongated tail comprise a stop forming with the light of the wings of the fixed body an air gap and cooperating with the rounded lips career of the fixed body. 7. Pince selon la revendication 1 caractérisée en ce que la mâchoire mobile comporte un axe transversal faisant saillie par rapport aux faces externes de la mâchoire mobile et coopérant avec les lumieres pratiquées dans les ailes du corps fixe. 7. Pliers according to claim 1 characterized in that the movable jaw has a transverse axis projecting with respect to the external faces of the movable jaw and cooperating with the lumieres made in the wings of the fixed body.
FR7914918A 1979-06-05 1979-06-05 Self closing compression claw connector - hooks onto overhead cable and comprises fixed body and moving jaw guided by four point contact with body Granted FR2458918A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7914918A FR2458918A1 (en) 1979-06-05 1979-06-05 Self closing compression claw connector - hooks onto overhead cable and comprises fixed body and moving jaw guided by four point contact with body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7914918A FR2458918A1 (en) 1979-06-05 1979-06-05 Self closing compression claw connector - hooks onto overhead cable and comprises fixed body and moving jaw guided by four point contact with body

Publications (2)

Publication Number Publication Date
FR2458918A1 true FR2458918A1 (en) 1981-01-02
FR2458918B3 FR2458918B3 (en) 1982-03-26

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FR7914918A Granted FR2458918A1 (en) 1979-06-05 1979-06-05 Self closing compression claw connector - hooks onto overhead cable and comprises fixed body and moving jaw guided by four point contact with body

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FR (1) FR2458918A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585517A1 (en) * 1985-07-23 1987-01-30 Fameca Sa Self-locking contact clamp for earthing or short-circuiting electrified overhead lines
FR2600829A1 (en) * 1986-06-30 1987-12-31 Catu Ets Electrical contact clamp with automatic clamping, especially for earthing overhead electrical conductors
CN112151982A (en) * 2020-08-14 2020-12-29 河北省金具电力有限公司 Clamping structure and clamping method of high-voltage grounding wire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585517A1 (en) * 1985-07-23 1987-01-30 Fameca Sa Self-locking contact clamp for earthing or short-circuiting electrified overhead lines
FR2600829A1 (en) * 1986-06-30 1987-12-31 Catu Ets Electrical contact clamp with automatic clamping, especially for earthing overhead electrical conductors
CN112151982A (en) * 2020-08-14 2020-12-29 河北省金具电力有限公司 Clamping structure and clamping method of high-voltage grounding wire

Also Published As

Publication number Publication date
FR2458918B3 (en) 1982-03-26

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