CN217507670U - Bus bar connecting device - Google Patents

Abstract

A bus bar connecting device comprises clamping pieces which are oppositely arranged and a fastening piece which is arranged between the clamping pieces, the outer sides of the clamping pieces are respectively provided with a threaded piece, the clamping pieces are respectively provided with a mounting hole, two ends of the fastening piece are respectively inserted into the mounting holes to be connected with the threaded piece, the mounting hole on at least one clamping piece is provided with a plurality of fastening surfaces along the circumferential direction, one end of each fastening surface is respectively provided with a protruding structure matched with the fastening piece, one end of each fastening surface, far away from the protruding structure, forms a movable gap with the fastening piece at intervals, not only can the movable gap causing the follow-up rotation problem of the fastening piece be utilized, so that the fastening piece can be easily inserted into the mounting hole along the movable gap, and when the trend that follows the commentaries on classics appears in the fastener, can support spacing on the fastener through protruding structure, stop the fastener and follow the screw member rotation of its one end, guarantee that the screw member of the other end also can easily aim at the fastener.

Description

Bus bar connecting device

Technical Field

The utility model relates to an electric field especially relates to a generating line row connecting device.

Background

With the continuous expansion of the investment scale of the national smart grid project and the promotion of the government on the infrastructure investment and the urbanization construction, the demand of the power distribution market on the low-voltage cabinet is steadily increased. When current low-voltage cabinet passes through the fixed generating line row of holder, can use the fastener to connect at the holder, but the fastener can produce when being connected with the holder of one end and follow the commentaries on classics, leads to the unable installation of holder of fastener and the other end. In addition, the holder of current low-voltage cabinet is out of shape easily, and the holder just produces very big stress at the in-process of installation, like the electric current increase that passes through, will increase to the bearing stress of holder, and too big stress reduces the life of holder, is unfavorable for equipment normal operating, also causes the hidden danger to the biography personnel safety.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a can prevent that the fastener from following the generating line row connecting device who changes and reduce the holder atress.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a connecting device is arranged to generating line, its includes the holder that sets up relatively to and the fastener of setting between the holder, be equipped with the screw respectively in the outside of holder, be equipped with the mounting hole on the holder respectively, the both ends of fastener are inserted respectively in the mounting hole and are connected with the screw, and the mounting hole on at least one holder is equipped with a plurality of fastening surfaces along circumference, and the one end of a plurality of fastening surfaces is equipped with respectively with fastener complex protruding structure, and the one end that protruding structure was kept away from to a plurality of fastening surfaces forms the clearance with the fastener interval.

Preferably, the fastener includes the supporting part and sets up the connecting portion at the supporting part both ends, and connecting portion are equipped with the screw hole of being connected with the screw, the mounting hole of holder is including spacing hole and the connecting hole of intercommunication, and spacing hole and connecting hole are used for holding the supporting part and the connecting portion of fastener respectively, the fastening face sets up in spacing downthehole and the supporting part cooperation of fastener.

Preferably, the supporting part is in a regular prism shape, a plurality of supporting surfaces are arranged on the periphery of the supporting part, a plurality of fastening surfaces corresponding to the plurality of supporting surfaces respectively are arranged in the mounting hole, and the protruding structures on the plurality of fastening surfaces are arranged in a central symmetry mode through the axis of the mounting hole.

Preferably, protruding structure is the boss shape, protruding structural being equipped with the spacing face of fastener contact, protruding structure is equipped with the face of stepping down in the one side that is close to corresponding clearance, and the face of stepping down is connected between spacing face and fastening surface, and spacing face meets with adjacent fastening surface in the one side of keeping away from corresponding clearance.

Preferably, one end of the protruding structure, which is far away from the corresponding connecting hole, is provided with a guide surface connected between the limiting surface and the fastening surface, and the guide surface and the limiting surface are in oblique angle arrangement.

Preferably, the protruding structures are arranged in the mounting holes of the two clamping pieces.

Preferably, the height H1 of the connection part is greater than or equal to the depth H2 of the connection hole.

Preferably, the screw member is provided with a flat pad contacting the holder.

Preferably, the screw thread spare is the screw, the screw thread spare includes pole portion and head flat pad cover is equipped with the bullet pad between head and flat pad in pole portion, the supporting part was kept away from to connecting portion one end can with the interior edge contact of flat pad, the outer edge of flat pad and holder contact spacing.

Preferably, be equipped with the support between holder and the flat pad, be equipped with the first through-hole that is used for dodging screw spare pole portion on the support, the height H1 of connecting portion is more than or equal to the degree of depth H2 of connecting hole, the supporting part was kept away from to connecting portion one end can with the support is kept away from one side contact of flat pad, and one side that the flat pad was kept away from to the support is spacing with holder contact.

Preferably, be equipped with the support between holder and the flat pad, be equipped with the second through-hole that is used for dodging the connecting portion on the support, the height H1 of connecting portion, the degree of depth H2 that is greater than or equal to corresponding connecting hole plus the thickness H3 of support, the connecting portion passes the interior edge contact of support and flat pad from the second through-hole, the outer edge of flat pad is spacing with the support contact, and is spacing with the holder contact.

The utility model discloses a connecting device is arranged to generating line, one end through the fastening face at the mounting hole sets up protruding structure, and form the clearance between the one end of keeping away from protruding structure at the fastening face and the fastener, not only can utilize the current clearance that leads to the fastener to appear following the commentaries on classics problem, make the fastener can follow the clearance and easily insert in the mounting hole, and when the trend that follows the commentaries on classics appears in the fastener, can support spacing on the fastener through protruding structure, it rotates to block the screw member that the fastener follows its one end, guarantee that the screw member of the other end also can easily aim at the fastener, can enough prevent following the commentaries on classics problem, can not improve the degree of difficulty of assembly again. In addition, the height H1 of connecting portion is greater than or equal to the degree of depth H2 of connecting hole, the one end that the connecting portion kept away from the supporting part can with the interior edge contact of flat pad, and the outer edge of flat pad contacts spacing with the generating line row, and the fastening force of screw all acts on the fastener, can not exert pressure to the holder, can prevent that the holder warp.

Drawings

Fig. 1 is an exploded view of the bus bar connecting device of the present invention;

fig. 2 is a cross-sectional view of the bus bar connection device of the present invention;

FIG. 3 is a schematic structural view of the lower clamping member of the present invention;

fig. 4 is a schematic structural view of the upper clamping member of the present invention;

fig. 5 is a schematic structural view of the lower connecting part of the present invention;

fig. 6 is a schematic structural view of the upper connecting part of the present invention;

fig. 7 is a cross-sectional view B-B of fig. 2 in accordance with the present invention;

fig. 8 is a cross-sectional view a-a of fig. 2 according to the present invention.

Detailed Description

The following description will further describe a specific embodiment of the bus bar connecting device of the present invention with reference to the embodiments shown in fig. 1 to 8. The bus bar connecting device of the present invention is not limited to the description of the following embodiments.

As shown in fig. 1-8, the utility model discloses a bus bar connecting device, including the holder 1 of relative setting to and set up fastener 2 between holder 1, be equipped with screw 3 respectively in the outside of holder 1, be equipped with mounting hole 4 on holder 1 respectively, the both ends of fastener 2 are inserted respectively in mounting hole 4 and are connected with screw 3, and mounting hole 4 on at least one holder 1 is equipped with a plurality of fastening surfaces 5 along circumference, and the one end of a plurality of fastening surfaces 5 is equipped with respectively and forms clearance 7 (fig. 7-8) with fastener 2 complex protruding structure 6, and the one end that a plurality of fastening surfaces 5 kept away from protruding structure 6 forms clearance 7 (fig. 7-8) with fastener 2 interval.

The utility model discloses a connecting device is arranged to generating line, one end through the fastening face 5 at mounting hole 4 sets up protruding structure 6, and keep away from forming movable gap 7 between protruding structure 6's one end and the fastener 2 at fastening face 5, not only can utilize the current movable gap 7 that leads to fastener 2 to appear following the commentaries on classics problem, make fastener 2 can follow movable gap 7 and easily insert mounting hole 4 in, and when fastener 2 appears following the trend of commentaries on classics, can support spacing on fastener 2 through protruding structure 6, it rotates to block fastener 2 to follow the screw member 3 of its one end, guarantee that screw member 3 of the other end also can easily aim at fastener 2, can enough prevent following the commentaries on classics problem, can not improve the degree of difficulty of assembly again.

As shown in fig. 1-3, in the present embodiment, the two clamping members 1 are provided with guide grooves 11 for limiting bus bars 12, the two clamping members 1 can fix four sets of bus bars, the two clamping members 1 have the same structure, the mounting holes 4 of the two clamping members 1 are provided with the protruding structures 6, two fastening members 2 are provided between the clamping members 1, each clamping member 1 is provided with three mounting holes 4, each fastening member 2 includes a supporting portion 21 and connecting portions 22 provided at two ends of the supporting portion 21, each connecting portion 22 is provided with a threaded hole 23 connected to the corresponding threaded member 3, the mounting holes 4 of the clamping members 1 include communicated limiting holes 41 and connecting holes 42, the limiting holes 41 and the connecting holes 42 are respectively used for accommodating the supporting portions 21 and the connecting portions 22 of the fastening members 2, and the fastening surfaces 5 are provided in the limiting holes 41 and are matched with the supporting portions 21 of the fastening members 2. Of course, the number of the fastening members 2 can be adjusted to be odd or even, and the number of the mounting holes 4 on each clamping member 1 and the number of the fastening members 2 are odd or even.

As shown in fig. 3 to 8, the supporting portion 21 is in a regular prism shape, a plurality of supporting surfaces 20 (fig. 5) are arranged around the supporting portion 21, a plurality of fastening surfaces 5 corresponding to the plurality of supporting surfaces 20 are arranged in the mounting hole 4, the protruding structures 6 on the plurality of fastening surfaces 5 are arranged in a central symmetry manner with respect to the axis of the mounting hole 4 (fig. 7 to 8), in the circumferential direction of the mounting hole 4, the plurality of fastening surfaces 5 are in contact fit with one end of the corresponding supporting surface 20 through the protruding structures 6, the plurality of fastening surfaces 5 and one end of the supporting surface 20 far away from the protruding structures 6 form a movable gap 7 at an interval, the protruding structures 6 only occupy a part of the circumferential direction of the fastening surfaces 5, and the other part forms the movable gap 7.

The supporting portion 21 of this embodiment is a regular hexagonal prism, six supporting surfaces 20 are arranged around the supporting portion 21, six fastening surfaces 5 corresponding to the six supporting surfaces 20 are arranged in the mounting hole 4, and the radial cross-sectional shapes of the supporting portion 21 and the mounting hole 4 are regular hexagons. It will be appreciated that other numbers of regular prisms may be used for the support portion 21, such as three, four or more support surfaces 20, and that the fastening surface 5 in the mounting hole 4 corresponds to the support surface 20, so as to ensure that the mounting hole 4 and the support portion 21 are in the same shape.

Further, protruding structure 6 is the boss shape, be equipped with the spacing face 61 with the contact of holding surface 20 on protruding structure 6, protruding structure 6 is equipped with the face of stepping down 62 near the one side that corresponds clearance 7, and the face of stepping down 62 is connected between spacing face 61 and fastening face 5, and spacing face 61 meets with adjacent fastening face 5 in the one side of keeping away from corresponding clearance 7, and the one end of keeping away from corresponding connecting hole 42 at protruding structure 6 is equipped with the spigot surface 63 of connection between spacing face 61 and fastening face 5, spacing face 61 is the plane shape, spigot surface 63 with spacing face 61 is the oblique angle setting. The planar limiting surface 61 can be in full contact with the fastening piece 2, the guide surface 63 can play a role in guiding, the supporting part 21 can be conveniently inserted into the limiting hole 41, the protruding structure 6 is connected with the adjacent fastening surface 5, and the difficulty in machining and forming the clamping piece 1 can be reduced. Of course, the protruding structure 6 and the adjacent fastening surface 5 may not be connected, and the guiding surface 63 may not be provided on the protruding structure 6, all belonging to the protection scope of the present invention. It is understood that the protrusion structure 6 may also take other shapes, such as convex hull, block, bar, protrusion or bulge, and the limiting surface 61 may also be in line contact with and in point contact with the fastening member 2, all falling within the scope of the present invention.

As shown in fig. 5 to 6, the connecting portion 22 of the fastening member 2 has a cylindrical shape, an elliptic cylindrical shape, or a regular prism shape, and the other end of the connecting portion 22 connected to the supporting portion 21 is provided with a threaded hole 23 connected to the screw member 3. The connection part 22 of the present embodiment has a cylindrical shape, and when the connection part 22 has a regular prism shape, the connection part 22 preferably has a symmetrical structure.

As shown in fig. 1-2, the screw member 3 is a screw, the screw member 3 includes a rod 31 and a head 32, the rod 31 is sleeved with an elastic pad 33 and a flat pad 34, the elastic pad 33 is located between the flat pad 34 and the head 32, the radius of the flat pad 34 is greater than the radius of the connecting hole 42, and the outer edge of the flat pad 34 is in contact with the clamping member 1 for limiting. Of course, the elastic pad 33 may not be provided, and the flat pad 34 may be provided between the head 32 and the holder 1.

Further, the height H1 of connecting portion 22 is greater than or equal to the degree of depth H2 of connecting hole 42, connecting portion 22 is equipped with the connection face 24 in the one end of keeping away from supporting portion 21, connect the face 24 can with the interior contact of following of flat pad 34 to flush with the surface that another holder 1 was kept away from to holder 1, the fastening force of screw 3 all is used in fastener 2, can not exert pressure to holder 1, can prevent holder 1 and warp, supporting portion 21 is equipped with protruding step 25 with the junction of both ends connecting portion 22 respectively, connecting hole 42 in the mounting hole 4 is equipped with concave step 43 with spacing hole 41's junction.

When the height H1 of connecting portion 22 equals during the degree of depth H2 of connecting hole 42, connect face 24 and holder 1 respectively with flat pad 34 contact, and flat pad 34 with just be in the zero limit state between being connected face 24 and the holder 1, the outside surface of being connected face 24 and holder 1 flushes, protruding step 25 on the supporting part 21 also just is in the zero limit state with the concave step 43 in the mounting hole 4 simultaneously, screw 3 only to the powerful effect of fastener 2 after screwing up, to the effect of holder 1 outward appearance inofficacy, fastener 2 also can not extrude holder 1 and lead to the deformation.

When the height H1 of connecting portion 22 is greater than when the degree of depth H2 of connecting hole 42, holder 1 can move up and down along connecting portion 22, when generating line row 12 was adorned between holder 1, because the support of generating line row 12, open holder 1 of upper and lower both sides, make the connecting surface 24 and the flat pad 34 contact at fastener 2 both ends, and make connecting surface 24 level with the surface of holder 1, threaded component 3 screws up the back and just has the effect that makes power to fastener 2 equally, to the effect of holder 1 outward appearance inoffectiveness, fastener 2 also can not extrude holder 1 and lead to the deformation.

Further, a support 8 is further arranged on the outer side of one of the clamping members 1, the support 8 is located between the clamping members 1 and the flat pad 34, a first through hole 81 for avoiding the rod portion 31 of the threaded member 3 is formed in the support 8, the rod portion 31 of the threaded member 3 penetrates through the first through hole 81 to be connected with the fastening member 2, when the connecting surface 24 is flush with the outer surface of the clamping member 1, the corresponding connecting surface 24 is in contact with one side of the support 8 away from the flat pad 34, namely, the support 8 is used for replacing the flat pad 34 to be in contact with the connecting surface 24.

Or, set up the second through-hole (not shown in the figure) on support 8 and replace first through-hole 81, the radius of second through-hole is bigger, can let connecting portion 22 pass to increase the height H1 (not shown in the figure) that corresponds connecting portion 22, make the height H1 that corresponds connecting portion 22, be greater than or equal to the degree of depth H2 that corresponds connecting hole 42 plus support 8's thickness H3, connecting portion 22 passes support 8 and the contact of the interior edge of flat pad 34 from the second through-hole, the outer edge of flat pad 34 contacts spacing with support 8, and support 8 keeps away from one side of flat pad 34 and holder 1 contact spacing, all belong to the protection scope of the utility model.

As shown in fig. 2, the clamping members 1 are an upper clamping member 101 and a lower clamping member 102, the bracket 8 is disposed on a side of the lower clamping member 102 away from the upper clamping member 101, fig. 3 is a schematic structural diagram of the lower clamping member 102, fig. 4 is a schematic structural diagram of the upper clamping member 101, and the structures of the lower clamping member 102 and the upper clamping member 101 are the same.

As shown in fig. 2, the connecting portions 22 at the two ends of the fastening member 2 are an upper connecting portion 221 and a lower connecting portion 222, respectively, fig. 5 is a schematic structural view of the lower connecting portion 222, fig. 6 is a schematic structural view of the upper connecting portion 221, and the structures of the lower connecting portion 222 and the upper connecting portion 221 are the same.

Fig. 7 is a schematic view of the fastener 2 and the lower clamping member 102, fig. 8 is a schematic view of the fastener 2 and the upper clamping member 101, and the screw member 3 connected to the lower connecting portion 222 may be rotated counterclockwise or clockwise when being tightened. Similarly, the screw member 3 connected to the upper connecting portion 221 may rotate counterclockwise or clockwise when being screwed down, which all belong to the protection scope of the present invention.

The installation process is as follows:

the method comprises the following steps: the screw member 3 connected to the lower connecting portion 222 is screwed with the fastening member 2 through the bracket 8 and through the mounting hole 4 of the lower clamp member 102.

Step two: the bus bar 12 is placed in the guide groove 11 of the lower clamping member 102, and the guide groove 11 of the upper clamping member 101 is fitted with the bus bar 12, while the upper connecting portion 221 of the fastening member 2 is aligned and inserted into the mounting hole 4 of the upper clamping member 101, so that the bus bar 12 is clamped between the upper clamping member 101 and the lower clamping member 102.

Step three: the screw member 3 connected to the upper connecting portion 221 is connected to the fastening member 2 through the mounting hole 4 of the upper clamp 101.

As shown in fig. 2, in the first step, when the screw member 3 connected to the lower connecting portion 222 is rotated in a counterclockwise direction, the fastening member 2 of the prior art rotates, so that the fastening member cannot be aligned with the hole in the upper clamping member 101 after the fastening member is rotated by a certain angle.

When the following rotation trend of the fastener 2 occurs, the fastener 2 is limited by the protruding structure 6 to continue rotating, the fastener 2 does not interfere with the mounting hole 4 of the clamping piece 1, and the upper connecting part 221 of the fastener 2 and the upper clamping piece 101 can be aligned to be smoothly mounted.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (11)

1. The utility model provides a connecting device is arranged to generating line which characterized in that: including holder (1) that sets up relatively to and fastener (2) of setting between holder (1), be equipped with screw (3) respectively in the outside of holder (1), be equipped with mounting hole (4) on holder (1) respectively, the both ends of fastener (2) are inserted respectively in mounting hole (4) and are connected with screw (3), and mounting hole (4) on at least one holder (1) are equipped with a plurality of fastening surfaces (5) along circumference, and the one end of a plurality of fastening surfaces (5) is equipped with respectively with fastener (2) complex protruding structure (6), and the one end that protruding structure (6) were kept away from in a plurality of fastening surfaces (5) forms clearance (7) with fastener (2) interval.

2. The bus bar connection device according to claim 1, wherein: fastener (2) are including supporting part (21) and set up connecting portion (22) at supporting part (21) both ends, and connecting portion (22) are equipped with screw hole (23) of being connected with screw (3), mounting hole (4) of holder (1) are used for holding supporting part (21) and connecting portion (22) of fastener (2) respectively including spacing hole (41) and connecting hole (42) of intercommunication, spacing hole (41) and connecting hole (42), fastening face (5) set up in spacing hole (41) with supporting part (21) cooperation of fastener (2).

3. The bus bar connection arrangement according to claim 2, wherein: the supporting part (21) is in a regular prism shape, a plurality of supporting surfaces (20) are arranged on the periphery of the supporting part (21), a plurality of fastening surfaces (5) corresponding to the supporting surfaces (20) respectively are arranged in the mounting hole (4), and the protruding structures (6) on the fastening surfaces (5) are symmetrically arranged with the axis of the mounting hole (4).

4. The bus bar connection device according to claim 1, wherein: protruding structure (6) are the boss shape, be equipped with spacing face (61) with fastener (2) contact on protruding structure (6), protruding structure (6) are equipped with face of stepping down (62) in the one side that is close to corresponding clearance (7), and face of stepping down (62) are connected between spacing face (61) and fastening face (5), and one side of keeping away from corresponding clearance (7) of spacing face (61) meets with adjacent fastening face (5).

5. The bus bar connection arrangement according to claim 4, wherein: protruding structure (6) are kept away from the one end that corresponds connecting hole (42) and are equipped with guide surface (63) of connection between spacing face (61) and fastening surface (5), guide surface (63) with spacing face (61) are the oblique angle setting.

6. The bus bar connection device according to any one of claims 1 to 5, wherein: the mounting holes (4) of the two clamping pieces (1) are internally provided with the protruding structures (6).

7. The bus bar connection arrangement according to claim 2, wherein: the height H1 of the connecting part (22) is greater than or equal to the depth H2 of the connecting hole (42).

8. The bus bar connection device according to claim 7, wherein: and a flat pad (34) which is in contact with the clamping piece (1) is arranged on the threaded piece (3).

9. The bus bar connection device according to claim 8, wherein: screw member (3) are the screw, screw member (3) include pole portion (31) and head (32), flat pad (34) cover is on pole portion (31), is equipped with between head (32) and flat pad (34) and plays pad (33), connecting portion (22) keep away from the one end of supporting part (21) can with the interior edge contact of flat pad (34), the outer edge and holder (1) contact of flat pad (34) are spacing.

10. The bus bar connection device according to claim 8, wherein: be equipped with support (8) between holder (1) and flat pad (34), be equipped with on support (8) and be used for dodging first through-hole (81) of screw member (3) pole portion (31), the height H1 of connecting portion (22) is greater than or equal to the degree of depth H2 of connecting hole (42), the one end that supporting part (21) were kept away from in connecting portion (22) can with one side contact of flat pad (34) is kept away from in support (8), and one side and holder (1) contact spacing of flat pad (34) are kept away from in support (8).

11. The bus bar connection device according to claim 8, wherein: be equipped with support (8) between holder (1) and flat pad (34), be equipped with the second through-hole that is used for dodging connecting portion (22) on support (8), the height H1 of connecting portion (22), the degree of depth H2 that is greater than or equal to corresponding connecting hole (42) adds the thickness H3 of support (8), connecting portion (22) pass the interior edge contact of support (8) and flat pad (34) from the second through-hole, the outer edge of flat pad (34) contacts spacingly with support (8), and it is spacing with holder (1) contact.

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