CN215419322U - Direct insertion type diversion clamp - Google Patents

Abstract

The utility model discloses a direct-insert type diversion clamp, which comprises a contact head which is lapped with a distribution box bus bar to realize conduction, wherein an insulating rod is arranged on the contact head, the contact head comprises a U-shaped main body, a sliding block and a push rod for driving the sliding block to move in the main body, the main body is provided with a first support arm, a second support arm and a connecting arm for connecting the first support arm and the second support arm, which are opposite, a movable space is formed between the first support arm and the connecting arm, the sliding block is arranged in the movable space, the sliding block is hinged with the first support arm so that the sliding block can move up and down in the movable space and press and clamp the bus bar after approaching the second support arm, a limit stop block is arranged at one end of the first support arm or the second support arm, which is far away from the connecting arm, and an insertion opening is formed between the limit stop block and the second support arm or the first support arm. Compared with the prior art, the operation is convenient, the operation safety is improved, and the load requirement can be ensured due to the adoption of surface contact.

Description

Direct insertion type diversion clamp

Technical Field

The utility model relates to power grid maintenance equipment, in particular to a direct-insertion type diversion clamp for a power distribution cabinet.

Background

The low-voltage bypass power supply method is that equipment needs to be stopped due to reconstruction or maintenance of the power supply equipment, a bypass cable is additionally laid before the equipment is stopped, and a load transfer vehicle or a generator car provides a power supply to replace the original power supply facility for continuous power supply, just like a heart bridging operation; after the work is finished, the bypass facility is dismantled again to recover the normal power supply.

The existing low-voltage bypass power supply is divided into two types, one type is operated on an overhead line, and the existing domestic basic power supply can be accessed in a live way; the second type is to work on electrical equipment, a low-voltage power distribution cabinet is required to be connected, at present, a standby air switch is connected domestically, and then power is reversely transmitted to a low-voltage bus, and the problems that the standby switch is not very standby and the power supply capacity is limited exist, so that the standby air switch is hardly adopted at present; in order to solve the problems, a busbar lock rod is connected to a busbar copper bar of a power distribution cabinet to realize power transmission, the power distribution cabinet requires that the busbar copper bar is wrapped by insulating materials, only the position where a down lead enters a groove-shaped protection box is exposed, and the position has a condition of point access, the existing busbar lock rod is meshed on the busbar copper bar after the insulating materials are punctured by a needle-shaped contact to realize contact conduction, the process of meshing needs a human hand to operate an adjusting screw to enable the needle-shaped contact to move towards the busbar copper bar, but the space of the power distribution cabinet is limited, when the busbar lock rod is connected and conducted with the position, the busbar lock rod is difficult to be smoothly connected to the down lead, and the adjusting screw is difficult to operate, so that a tapered end of the busbar lock rod easily touches a cabinet body or an exposed metal part of the power distribution cabinet, causing a short circuit; and the bus bar is easy to obstruct operation and the operator is easy to touch the lock head due to the fact that the leading-out cable of the bus bar is exposed on the lock head, so that the operator gets an electric shock.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a straight-inserting type diversion clamp, which aims to solve the technical problems of convenience in operation and improvement of operation safety.

In order to solve the problems, the utility model adopts the following technical scheme: a direct-insertion type diversion clamp comprises a contact head which is lapped with a distribution box bus bar to realize conduction, an insulating rod is arranged on the contact head, the contact head comprises a U-shaped main body, a sliding block and a push rod which drives a sliding block to move in the main body, the main body is provided with a first supporting arm, a second supporting arm and a connecting arm which is connected with the first supporting arm and the second supporting arm, the first supporting arm, the second supporting arm and the connecting arm form a movable space, the sliding block is arranged in the movable space, the sliding block is hinged with the first supporting arm, so that the sliding block can move up and down in the moving space and press and clamp the busbar after approaching the second support arm, a limit stop is arranged at one end of the first support arm or the second support arm far away from the connecting arm, and an insertion opening is formed between the limit stop and the second support arm or the first support arm so as to stop and limit the moving position of the sliding block and insert the sliding block on the busbar through the insertion opening; the main body is provided with a connecting part which is used for being electrically connected with a cable accessed by a bypass, and the other parts of the main body are insulated except for the end surface of one end of the second support arm opposite to the sliding block, so that the end surface of one end of the second support arm opposite to the sliding block forms a conductive surface; the push rod is connected and fixed on the insulating rod, a threaded hole penetrating through the connecting arm is formed in the connecting arm, external threads matched with the threaded hole are formed in the outer wall of the push rod, so that the push rod and the connecting arm are in threaded connection through the external threads and the threaded hole and extend into the movable space to be abutted against the sliding block, when the insulating rod is rotated, the push rod is driven to rotate, and the push rod can vertically move in the movable space and can move up and down to push the sliding block to move up and down in the movable space.

Furthermore, limit stop locates on first support arm.

Further, the sliding block is hinged with the first supporting arm through hinge pieces symmetrically arranged at two opposite ends of the sliding block.

Further, the hole center of the hinge through hole on the sliding block is adjacent to the central line of the sliding block.

Further, first arm includes the first face relative with the slider, with two second faces that first face is adjacent, the symmetry is provided with the depressed slot on two second faces to form articulated piece linking arm between two depressed slots, articulated piece is located in the depressed slot, the one end of articulated piece is passed through the bolt and is articulated with articulated piece linking arm.

Further, there are two hinge tabs on each end.

Further, the connecting portion extends toward an end of the connecting arm away from the second arm.

Further, the insulating rod is made of D30 epoxy resin material.

Compared with the prior art, the bus copper bar clamping device has the advantages that the push rod which is in threaded connection with the U-shaped main body is arranged, the hinged slide block is arranged on the first support arm of the main body, so that when the insulating rod rotates, the slide block can be close to the first support arm or the second support arm when the push rod rotates, and when the slide block is close to the second support arm, the bus copper bar is clamped between the slide block and the second support arm; except that the second support arm all the other surfaces all insulating with the slider relative one end surface in the main part, realize insulating, prevent that the main part from touching the switch board cabinet body and leading to ground connection or alternate short circuit or the problem of electrocuting when operating personnel improper operation touches the main part, through rotating the insulator spindle, realized can operating in the downlead department of keeping away from the generating line copper bar, the operation of not only being convenient for, but also the security of operation has been improved, owing to what adopt is the face contact, can guarantee the load requirement.

Drawings

Fig. 1-1 is a schematic view of the structure of the present invention.

Fig. 1-2 are schematic views of the slider of the present invention away from a positive stop.

Fig. 2 is a right side view of the present invention.

Fig. 3 is a schematic view of the internal structure of the present invention.

Fig. 4 is a schematic structural diagram of the insulating isolation cover of the present invention.

Fig. 5 is a sectional view taken along a-a of fig. 4.

Fig. 6 is a schematic view of a first use of the contact of the present invention.

Fig. 7 is a schematic view of a second use of the contact of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1-1, fig. 1-2, fig. 3 and fig. 6, the utility model discloses a direct-insertion type diversion clamp, which comprises a contact head 1 and an insulating rod 7, wherein the contact head is lapped with a distribution box busbar (busbar copper bar) to realize conduction, in the utility model, the contact head 1 is made of copper material, the contact head 1 comprises a U-shaped main body 2, a slide block 3 and a driving slide block 3, a push rod 4 moving in the main body 2, the main body 2 is provided with a first support arm 21, a second support arm 22 and a connecting arm 23 connecting the first support arm 21 and the second support arm 22 which are opposite, a moving space 24 is formed between the first support arm 21 and the connecting arm 23, the slide block 3 is arranged in the moving space 24, the slide block 3 is hinged with the first support arm 21, so that the sliding block 3 can move up and down in the moving space 24 and press and clamp the busbar between the sliding block 3 and the second support arm 22 after approaching the second support arm 22; a limit stop 25 is arranged at one end of the first support arm 21 or the second support arm 22 far away from the connecting arm 23, and when the plate block 25 and the second support arm 22 or the first support arm 21 are limited, an insertion opening 8 is formed between the plate block 25 and the first support arm 21 so as to stop and limit the moving position of the sliding block 3 and lead wires inserted into the busbar through the insertion opening 8 to enter the exposed position of the groove-shaped protection box; when the sliding block 3 is pushed to be close to the second support arm 22 by the push rod 4, the limit stop 25 is abutted against the sliding block 3 to prevent the sliding block 3 from continuously approaching the second support arm 22, so that the limit is realized; the main body 2 is provided with a connecting part 6, the connecting part 6 is used for electrically connecting with a cable accessed by a bypass, and the rest parts in the main body 2 are insulated at least except for the end surface of one end of the second support arm 22 opposite to the sliding block 3, so that the end surface of one end of the second support arm 22 opposite to the sliding block 3 forms a conductive surface 27, thereby realizing the surface contact with a bus copper bar, and the rest parts are insulated to prevent short circuit when the cable is electrically connected with the bypass; the push rod 4 is arranged on the insulating rod 7, the connecting arm 23 is provided with a threaded hole 26 penetrating through the connecting arm 23, the outer wall of the push rod 4 is provided with an external thread matched with the threaded hole 26, so that the push rod 4 is in threaded connection with the threaded hole 26 through the external thread and the connecting arm 23 and extends into the movable space 24 to be abutted against the sliding block 3, when the insulating rod 7 is rotated, the push rod 4 is driven to rotate, the push rod 4 can stretch in the movable space 24, and the sliding block 3 can vertically move up and down in the movable space 24 and is pushed to move up and down in the movable space 24.

In the present invention, the slider 3 is made of a metal material.

Compared with the point contact of the needle-shaped contact in the prior art, the surface contact is adopted, the contact area is increased, the stability of low-voltage bypass access is improved, and the use in different scenes is realized due to the adoption of a horizontal insertion mode or a vertical insertion mode.

As shown in fig. 1-1, 1-2 and 7, in the present invention, when the sliding block 3 moves to abut against the limit stop 25, the central line of the sliding block 3 deviates from the axis of the push rod 4, so as to implement bus bar copper bars for different thicknesses, specifically, the hole center of the hinge hole 31 on the sliding block 3 is disposed adjacent to the central line of the sliding block 3, that is, the extension line of the hole center does not intersect with the central line of the sliding block 3, as shown in fig. 1-1 and 1-2, when in use, after the hinge hole 31 is installed to be close to the first arm 21, when the sliding block 3 moves to abut against the limit stop 25, the central line of the sliding block 3 is close to the second arm 22, and at this time, the distance between the sliding block 3 and the second arm 22 is defined as a first distance; as shown in fig. 6 and 7, after the hinge hole 31 is installed near the second arm 22, when the slider 3 moves to abut against the limit stop 25, the center line of the slider 3 is close to the first arm 21, and at this time, the distance between the slider 3 and the second arm 22 is defined as a second distance, which is greater than the first distance, so that the contact 1 can be used in bus copper rows with different thicknesses, thereby realizing two different use modes.

As shown in fig. 1-1 and fig. 1-2, the sliding block 3 is hinged to the first support arm 21 through the hinge pieces 5 symmetrically arranged on the end surfaces of the two opposite ends of the sliding block 3, specifically, in order to ensure the stability of the sliding block 3, two hinge pieces 5 are arranged at each end, the two hinge pieces 5 are arranged in parallel up and down, one end of each hinge piece 5 is hinged to the first support arm 21, and the other end of each hinge piece 5 is hinged to the sliding block 3; the hinged sheet 5 is connected with the sliding block 3 and the first support arm 21 through bolts, so that the moving stability of the sliding block 3 is further ensured.

As shown in fig. 1-1 and 1-2, as an embodiment of the present invention, the limit stopper 25 is disposed on the first support arm 21, specifically, the limit stopper 25 is formed by a protrusion extending toward the second support arm 22 and disposed at an end of the first support arm 21 away from the connection arm 23, and an end surface of the limit stopper 25 away from the connection portion 23 is flush with an end surface of the first support arm 21 away from the connection portion 23.

As shown in fig. 2, the connecting portion 6 extends toward an end of the connecting arm 23 away from the second arm 32 as shown in fig. 2; more specifically, the connecting portion 6 extends towards the end of the connecting arm 23 away from the second arm 32 and also extends towards the end face of the connecting arm 23 adjacent to the conductive surface 27, so that the connecting portion protrudes out of the main body 2, a connecting hole 61 is formed in the connecting portion 6, the bypass access cable 200 is connected in the connecting hole 61, specifically, the rest of the connecting portion 6 except the connecting hole 61 is insulated, and the connecting portion 6 is of a sheet structure and is connected with the main body 2 to form a whole.

In the utility model, the insulation is to coat an insulating material or cover an insulating glue.

As shown in fig. 1-1, 1-2 and 2, the first support arm 21 includes a first end 211 opposite to the slider 3, two second faces 212 adjacent to the first face 211, two concave grooves 28 are symmetrically formed on the two second faces 212 to form a hinge plate connecting arm 281 between the two concave grooves 28, the hinge plate 5 is disposed in the concave groove 28, one end of the hinge plate 5 is hinged to the hinge plate connecting arm 281 through a bolt, so that the surface of the bolt is lower than the surfaces of the two second faces 212, and the bolt is prevented from contacting with the adjacent busbar, thereby causing the problem of conductive short circuit.

As shown in fig. 4 and 5, the in-line type diversion clamp further includes an insulating isolation cover 11, the insulating isolation cover 11 includes a top surface 111, a back surface 112 perpendicular to the top surface 111, and a side surface 113 disposed on the top surface 111 and adjacent to the back surface 112, and the insulating isolation cover 11 serves as an insulating protection for the contact 1, so as to further ensure the safety of the operator during operation.

In the utility model, the length of the insulating rod 7 is 900mm, and the insulating rod is made of D30 epoxy resin material; the top surface 111 of the insulating isolation cover 11 has a length of 120mm and a width of 120 mm; the back 112 has a length of 280mm and a width of 120 mm; the length of the side 113 is 280mm and the width is 60 mm; the thickness of the insulating isolation cover 11 is 3 mm.

During the use, install insulating cage 11 earlier in the position department of treating the generating line copper bar 100 that inserts, isolate out insulation space with the switch board, then as shown in fig. 6 or fig. 7, insert the bypass cable junction in connecting hole 61, adjust slider 3 again to be close to first support arm 21, make the position between slider 3 and the second support arm 22 insert on generating line copper bar 100, then rotate insulator spindle 7, make push rod 4 move towards activity space 24 direction, promote slider 3 simultaneously and be close to second support arm 22 gradually, when being close to second support arm 22, firm centre gripping between slider 3 and the second support arm 22 is on generating line copper bar 100, conducting surface 27 switches on with generating line copper bar 100 this moment.

According to the bus copper bar clamping device, the push rod which is in threaded connection with the U-shaped main body is arranged, the slide block which is hinged to the first support arm of the main body is arranged, so that the slide block can be close to the first support arm or the second support arm when the push rod is rotated, and the bus copper bar is clamped between the slide block and the second support arm when the slide block is close to the second support arm; except that the slider all the other surfaces all insulate with the relative one end surface of second support arm in main part and the slider to realize insulating, prevent that the main part from touching the switch board cabinet body and leading to ground connection or alternate short circuit or the problem of electrocuting when operating personnel improper operation touches the main part, improved the security of operation.

Claims (8)

1. The utility model provides a cut straightly formula water conservancy diversion pincers, includes contact head (1) that realizes switching on with female overlap joint of arranging of block terminal, its characterized in that: an insulating rod (7) is arranged on the contact head (1), the contact head (1) comprises a U-shaped main body (2), a sliding block (3) and a push rod (4) for driving the sliding block (3) to move in the main body (2), the main body (2) is provided with a first supporting arm (21), a second supporting arm (22) and a connecting arm (23) for connecting the first supporting arm (21) and the second supporting arm (22) which are opposite, a movable space (24) is formed between the first supporting arm (21) and the connecting arm (23) and between the second supporting arm (22) and the connecting arm (23), the sliding block (3) is arranged in the movable space (24), the sliding block (3) is hinged with the first supporting arm (21) so that the sliding block (3) can move up and down in the movable space (24) and press and clamp a busbar after approaching the second supporting arm (22), and a limit stop (25) is arranged at one end of the first supporting arm (21) or the second supporting arm (22) far away from the connecting arm (23), an insertion opening (8) is formed between the limit stop (25) and the second support arm (22) or the first support arm (21) so as to stop and limit the moving position of the sliding block (3) and insert the sliding block on the busbar through the insertion opening (8); the main body (2) is provided with a connecting part (6), the connecting part (6) is used for being electrically connected with a cable accessed by a bypass, and the other parts of the main body (2) are insulated except for at least one end surface of the second support arm (22) opposite to the sliding block (3), so that the end surface of one end of the second support arm (22) opposite to the sliding block (3) forms a conductive surface (27); push rod (4) are connected and are fixed on insulator spindle (7), be equipped with screw hole (26) that run through connecting arm (23) on connecting arm (23), be equipped with the external screw thread with screw hole (26) looks adaptation on the outer wall of push rod (4), so that offset with slider (3) in making between push rod (4) and connecting arm (23) through external screw thread and screw hole (26) threaded connection and stretching into activity space (24), when rotating insulator spindle (7), it is rotatory to drive push rod (4), push rod (4) can reciprocate perpendicularly in activity space (24) and promote slider (3) and reciprocate in activity space (24).

2. An in-line pliers according to claim 1 wherein: the limit stop (25) is arranged on the first support arm (21).

3. An in-line airguide clamp according to claim 1 or 2, wherein: the sliding block (3) is hinged with the first support arm (21) through hinge pieces (5) symmetrically arranged at two opposite ends of the sliding block (3).

4. An in-line pliers according to claim 3 wherein: the center of the hinge through hole (31) on the sliding block (3) is adjacent to the center line of the sliding block (3).

5. An in-line pliers according to claim 3 wherein: first support arm (21) include with slider (3) relative first face (211), two second faces (212) adjacent with first face (211), the symmetry is provided with depressed groove (28) on two second faces (212) to form articulated piece linking arm (281) between two depressed groove (28), during depressed groove (28) were located in articulated piece (5), the one end of articulated piece (5) was passed through the bolt and is articulated with articulated piece linking arm (281).

6. An in-line airguide clamp according to claim 5, wherein: two hinged flaps (5) are provided at each end.

7. An in-line pliers according to claim 1 wherein: the connecting portion (6) extends towards the end of the connecting arm (23) remote from the second arm (22).

8. An in-line pliers according to claim 1 wherein: the insulating rod (7) is made of D30 epoxy resin material.

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