CN217062552U

CN217062552U - Special-shaped parallel groove clamp

Info

Publication number: CN217062552U
Application number: CN202220934691.2U
Authority: CN
Inventors: 陈龙; 陈志财; 章晓鸣; 施存军; 李月琅; 赵德福
Original assignee: Ningbo Fengxin Electric Power Industrial Co ltd
Current assignee: Ningbo Fengxin Electric Power Industrial Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-07-26
Anticipated expiration: 2032-04-21

Abstract

The utility model relates to a heterotypic parallel groove clamp, relate to electric power accessory technical field, it includes lower plate and two at least punch holder, the punch holder groove has been seted up to one side that the punch holder is close to the lower plate, the lower plate has been close to one side of punch holder and has been seted up down the clamp groove, one side of keeping away from the lower plate on the punch holder is provided with the installation piece, one side an organic whole that the installation piece is close to the lower plate is provided with the screw thread post, first wear to establish the hole has all been seted up on punch holder and the lower plate, one side that the punch holder was kept away from to the lower plate is provided with the mounting nut that is used for with screw thread post threaded connection, one side that the lower plate was kept away from to the punch holder is provided with the mounting panel, set up on the mounting panel and supply the installation piece to place and pivoted rotation groove, set up the second that supplies the screw thread post to wear to establish the hole on the mounting panel, rotation groove and second wear to communicate mutually, be provided with the runner assembly who rotates to be connected with a plurality of installation piece on the mounting panel. This application has the wire that makes things convenient for the operator to heterotypic parallel groove clamp department and maintains, improves the effect of dismouting efficiency.

Description

Special-shaped parallel groove clamp

Technical Field

The application relates to the technical field of power accessories, in particular to a special-shaped parallel groove clamp.

Background

In the process of transmitting electric power through the wires, generally, a wire clamp made of iron or aluminum metal is fixed on the wires, the two wires are connected through the wire clamp, the wire clamp bears tension or the good contact in the electrical aspect is guaranteed, and the parallel groove wire clamp can be used for connecting the two parallel wires.

In the related art, the special-shaped parallel groove clamp is one of bolt-type parallel groove clamps, and an upper clamp plate and a lower clamp plate are pressed by fastening pressure of bolts, so that a connected wire is fixed between the upper clamp plate and the lower clamp plate. In the use process of the special-shaped parallel groove clamp, in order to ensure that the clamp has enough and even pressure on a wire, a two-bolt or three-bolt structure is generally adopted.

With respect to the related art in the above, the inventors consider that: when two wires at the special-shaped parallel groove clamp need to be maintained, an operator needs to screw off the bolts one by one, so that the wires compressed between the upper clamping plate and the lower clamping plate are exposed, the consumed time is long, and the improvement space is provided.

SUMMERY OF THE UTILITY MODEL

In order to make things convenient for the operator to maintain the wire of heterotypic parallel groove clamp department, improve dismouting efficiency, this application provides a heterotypic parallel groove clamp.

The application provides a pair of heterotypic parallel groove clamp adopts following technical scheme:

the utility model provides a heterotypic parallel groove clamp, includes punch holder and lower plate, the punch holder is provided with two at least, the punch holder is close to the last groove that presss from both sides has been seted up to one side of lower plate, the lower plate is close to lower groove, its characterized in that have been seted up to one side of punch holder: an installation block is arranged on one side, away from the lower clamping plate, of the upper clamping plate, a threaded column is integrally arranged on one side, close to the lower clamping plate, of the installation block, first through holes for the threaded column to penetrate through are formed in the upper clamping plate and the lower clamping plate, and an installation nut used for being in threaded connection with the threaded column is arranged on one side, away from the upper clamping plate, of the lower clamping plate;

the punch holder is kept away from one side of lower plate is provided with the mounting panel, seted up on the mounting panel and supplied the installation piece is placed and the pivoted rotation groove, set up on the mounting panel and supplied the second that the screw thread post wore to establish wears to establish the hole, rotate the groove with the second wears to establish the hole intercommunication of each other, be provided with on the mounting panel be used for with a plurality of the installation piece rotates the rotating assembly who is connected, rotating assembly drives a plurality ofly the installation piece syntropy rotates.

Through adopting above-mentioned technical scheme, set up the runner assembly on the mounting panel, rotate a plurality of installation pieces through the runner assembly and connect, when one of them installation piece rotated, all the other installation pieces took place to rotate simultaneously, make the operator carry out the syntropy rotation to a plurality of installation pieces simultaneously, thereby set up screw thread post and mounting nut threaded connection on the installation piece with an organic whole, make things convenient for the operator to install or dismantle lower plate and punch holder, thereby make things convenient for the operator to maintain the wire between lower plate and the punch holder.

Optionally, the mounting panel is kept away from one side of punch holder is provided with the limiting plate, the limiting plate be used for with the installation piece spacing in rotate the inslot, the installation piece is kept away from supply the instrument to insert and pivoted operation groove has been seted up to one side of screw thread post, set up on the limiting plate and supply the instrument to wear to establish and insert to operation hole in the operation groove.

Through adopting above-mentioned technical scheme, set up the limiting plate on the mounting panel, will install the piece through the limiting plate and spacing in the rotating groove to when the operator carries out threaded connection with threaded column and mounting nut, the installation piece is difficult to drop from the mounting groove.

Optionally, the rotating assembly includes a fixing column, a bearing and a transmission gear, the fixing column is disposed on one side of the mounting plate away from the upper clamping plate, the fixing column is located at the bottom of the rotating groove, the bearing is sleeved and fixed on the fixing column, the transmission gear is sleeved and rotatably connected to the bearing, the mounting block is provided with a plurality of driving teeth engaged with the transmission gear, and the transmission gear drives the driving teeth to rotate in the same direction.

Through adopting above-mentioned technical scheme, be provided with initiative tooth spare on the installation piece, mesh through initiative tooth spare and drive gear, all rotate between messenger's a plurality of installation pieces and be connected to when the operator rotates one of them installation piece, a plurality of installation pieces rotate simultaneously and syntropy.

Optionally, the cover is equipped with flat gasket on the screw thread post, flat gasket is located the mounting panel with between the installation piece, just one side of flat gasket with the tank bottom butt in groove rotates, the opposite side of flat gasket with the installation piece butt.

Through adopting above-mentioned technical scheme, the flat gasket is established to the cover on the screw thread post, increases the area of contact between installation piece and the mounting panel through the flat gasket, and makes the tank bottom of installation piece and rotation groove not direct contact, reduces the wearing and tearing between the tank bottom of rotation groove and the installation piece, prolongs the life of installation piece and mounting panel.

Optionally, a spring gasket is sleeved on the threaded column, the spring gasket is located between the flat gasket and the mounting block, one side of the spring gasket is abutted against the flat gasket, and the spring gasket is abutted against the mounting block.

Through adopting above-mentioned technical scheme, the spring shim is established to the cover on the screw thread post, through the pretension of spring shim self, makes screw thread post and mounting nut screw-thread fit back, and the screw thread post is difficult to drop from mounting nut department.

Optionally, a reinforcing strip is integrally arranged on one side of the lower clamping plate, which is far away from the upper clamping plate.

Through adopting above-mentioned technical scheme, set up the enhancement strip on the lower plate, through the structural strength who strengthens the strip and increase the lower plate, make the lower plate be difficult for damaging when using to increase the life of lower plate.

Optionally, a placing groove for placing and fixing the mounting nut is formed in the reinforcing bar.

Through adopting above-mentioned technical scheme, set up the standing groove on strengthening the strip, through placing mounting nut in the standing groove to on being fixed in the lower plate with mounting nut, make mounting nut be difficult to drop from the lower plate, and reduce shared overall volume between lower plate and the mounting nut.

Optionally, the lower plate is close to one side of punch holder is provided with the sand grip, the punch holder is close to one side of lower plate has seted up the confession the recess that the sand grip inserted and placed.

Through adopting above-mentioned technical scheme, set up the sand grip on the lower plate, through inserting the sand grip in the recess to increase the area of contact between punch holder and the lower plate, make and be difficult to drop between punch holder and the lower plate.

Optionally, the groove bottom of the upper clamping groove and the groove bottom of the lower clamping groove are both provided with anti-skid grains.

Through adopting above-mentioned technical scheme, the tank bottom that presss from both sides the groove under sets up anti-skidding line, through the frictional force between anti-skidding line increase wire and the lower plate, sets up anti-skidding line at the tank bottom that presss from both sides the groove last, increases the frictional force between wire and the punch holder, when making the wire place and compress tightly in last clamp groove and lower clamp inslot, the wire is difficult to take place to drop.

Optionally, a partition plate is sleeved on the threaded column and located between the mounting plate and the upper clamping plate, one side of the partition plate is abutted to the mounting plate, the other side of the partition plate is abutted to the upper clamping plate, and a third penetrating hole for the threaded column to penetrate is formed in the partition plate.

Through adopting above-mentioned technical scheme, the cover is equipped with the baffle on the screw thread post, makes not direct contact between mounting panel and the punch holder through the baffle to reduce the wearing and tearing between mounting panel and the punch holder, prolong the life of mounting panel and punch holder.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the plurality of mounting blocks are rotatably connected through the rotating assembly, when one mounting block rotates, the other mounting blocks rotate simultaneously, so that an operator can simultaneously rotate the plurality of mounting blocks in the same direction, a threaded column integrally arranged on the mounting blocks is in threaded connection with a mounting nut, the operator can conveniently mount or dismount the lower clamping plate and the upper clamping plate, and the operator can conveniently maintain a wire between the lower clamping plate and the upper clamping plate;

2. the mounting block is limited in the rotating groove through the limiting plate, so that the mounting block is not easy to fall off from the mounting groove when an operator connects the threaded column and the mounting nut in a threaded manner;

3. through initiative tooth spare and drive gear mesh, all rotate between messenger's a plurality of installation pieces and be connected to when the operator rotated one of them installation piece, a plurality of installation pieces were simultaneously and the syntropy rotated.

Drawings

Fig. 1 is a schematic view of the overall structure of the special-shaped parallel groove clamp in the embodiment of the present application.

Fig. 2 is an exploded view illustrating the upper clamp plate, the lower clamp plate, the mounting plate, the limiting plate, the mounting nut, the mounting block and the rotating assembly according to the embodiment of the present application.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an exploded view of the upper clamp plate, the lower clamp plate, the mounting plate, the limiting plate, the mounting nut, the mounting block and the rotating assembly according to the embodiment of the present application.

Description of the reference numerals: 1. an upper splint; 2. a lower splint; 3. an upper clamping groove; 4. a lower clamping groove; 5. mounting blocks; 6. a threaded post; 7. a first through hole; 8. mounting a nut; 9. mounting a plate; 10. a rotating groove; 11. a second through hole; 12. a rotating assembly; 13. a limiting plate; 14. an operation slot; 15. an operation hole; 16. fixing the column; 17. a bearing; 18. a transmission gear; 19. a driving gear; 20. a flat gasket; 21. a spring washer; 22. a reinforcing strip; 23. a placement groove; 24. a convex strip; 25. a groove; 26. anti-skid lines; 27. a partition plate; 28. and a third through hole.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Referring to fig. 1 and 2, the embodiment of the application discloses a special-shaped parallel groove clamp, which comprises an upper clamp plate 1 and a lower clamp plate 2, wherein at least two upper clamp plates 1 are arranged. One side that punch holder 1 is close to lower plate 2 is seted up and is supplied the last double-layered groove 3 that the wire was placed, lower plate 2 is close to one side of punch holder 1 and is seted up the lower double-layered groove 4 that supplies the wire to place, one side that punch holder 1 kept away from lower plate 2 is installed installation piece 5, one side an organic whole that installation piece 5 is close to lower plate 2 is provided with screw thread post 6, the diameter of installation piece 5 is greater than the diameter of screw thread post 6, all set up the first hole 7 of wearing to establish that supplies screw thread post 6 to wear to the punch holder 1 on punch holder 1 and the lower plate 2, lower plate 2 keeps away from one side of punch holder 1 and installs and be used for with 6 screw-thread fit's of screw thread post mounting nut 8, through mounting

nut

8 and 6 screw-thread fit of screw thread post, with punch holder 1 and lower plate 2 all spacing between mounting nut 8 and installation piece 5, thereby be fixed in lower double-layered groove 4 and the last double-layered inslot 3 with the wire. In the present embodiment, the upper splint 1 is provided with three in total.

Referring to fig. 1 and 2, the bottom of the lower clamping groove 4 and the bottom of the upper clamping groove 3 are integrally provided with anti-slip lines 26, the contact area between the bottom of the lower clamping groove 4 and the wire is increased by the anti-slip lines 26, and the contact area between the bottom of the upper clamping groove 3 and the wire is increased by the anti-slip lines 26, so that the wire placed between the lower clamping groove 4 and the upper clamping groove 3 is not easy to fall off.

Referring to fig. 1 and 2, one side an organic whole that lower plate 2 is close to punch holder 1 is provided with sand grip 24, the length direction of sand grip 24 is unanimous with the length direction of lower plate 2, punch holder 1 is close to one side of lower plate 2 and has been offered the recess 25 that supplies sand grip 24 to insert and place, through inserting sand grip 24 and placing in recess 25, thereby reduce the space between lower clamp groove 4 and the last clamp groove 3, make the wire of placing between lower clamp groove 4 and the last clamp groove 3 be difficult to drop.

Referring to fig. 2 and 3, a mounting plate 9 is installed on one side of the upper plate 1, which is far away from the lower plate 2, a rotating groove 10 for placing and rotating the mounting block 5 is formed in one side of the mounting plate 9, which is far away from the upper plate 1, and the depth of the rotating groove 10 is equal to the thickness of the mounting block 5, so that when the mounting block 5 is placed in the rotating groove 10, the mounting block 5 is flush with the mounting plate 9. Offer the second wear to establish hole 11 that supplies 6 wears to establish of screw thread post on the mounting panel 9, second wear to establish hole 11 and rotate groove 10 intercommunication each other, and the diameter of second wear to establish hole 11 is greater than the diameter of screw thread post 6 to when screw thread post 6 rotates, be difficult to produce wearing and tearing between screw thread post 6 and the mounting panel 9, prolong the life of screw thread post 6 and mounting panel 9. And a rotating assembly 12 which is rotatably connected with the mounting blocks 5 is mounted on one side of the mounting plate 9, which is far away from the upper clamping plate 1, and the rotating assembly 12 is used for enabling the mounting blocks 5 to rotate in the same direction. Make a plurality of installation pieces 5 rotate simultaneously through rotating assembly 12 to set up integrative screw thread post 6 and the 8 threaded connection of mounting nut on installation piece 5, make things convenient for the operator to install or dismantle lower plate 2 and punch holder 1, thereby make things convenient for the operator to maintain the wire between lower plate 2 and the punch holder 1. In the present embodiment, two rotating assemblies 12 are provided, and the rotating assemblies 12 are located between two adjacent mounting blocks 5.

Referring to fig. 2 and 3, the rotating assembly 12 includes a transmission gear 18, a fixing column 16 and a bearing 17, the fixing column 16 is integrally disposed on one side of the mounting plate 9 away from the upper clamp plate 1, the fixing column 16 is located at the bottom of the rotating groove 10, the bearing 17 is sleeved on the fixing column 16, and an inner ring of the bearing 17 is in interference fit with the fixing column 16. The transmission gear 18 is sleeved on the bearing 17, and the outer ring of the bearing 17 is in transition fit with the transmission gear 18. When the transmission gear 18 rotates through the bearing 17, friction between the transmission gear 18 and the fixed column 16 is reduced, abrasion between the transmission gear 18 and the fixed column 16 is reduced, and service lives of the transmission gear 18 and the fixed column 16 are prolonged. The driving tooth piece 19 used for being meshed with the transmission gear 18 is welded on the circumferential outer side face of the mounting block 5, and the plurality of mounting blocks 5 are enabled to rotate simultaneously and in the same direction through mutual meshing between the transmission gear 18 and the driving tooth piece 19, so that the threaded columns 6 are simultaneously in threaded fit with the mounting nuts 8, and the operation efficiency is improved. In the present embodiment, the shape of the rotation slot 10 matches the shape of the transmission gear 18 and the driving gear 19, and a gap is left between the slot wall of the rotation slot 10 and the transmission gear 18, and a gap is left between the slot wall of the rotation slot 10 and the driving gear 19.

Referring to fig. 2 and 3, a limiting plate 13 is mounted on one side of the mounting plate 9 away from the upper clamp plate 1 through a hexagon bolt, and the limiting plate 13 is used for limiting the mounting block 5 and the transmission gear 18 in the rotating groove 10. Installation piece 5 is kept away from one side of screw post 6 and is seted up and supply instrument male operation groove 14, through inserting the instrument in operation groove 14, thereby make things convenient for the operator to rotate installation piece 5, set up on the limiting plate 13 and supply the instrument to wear to establish and insert the handle hole 15 to the operation inslot 14, the cross-sectional area of handle hole 15 is less than the cross-sectional area of installation piece 5, thereby it is spacing mutually between 15 and the installation piece 5 through the handle hole, make installation piece 5 be difficult to drop from mounting panel 9.

Referring to fig. 2 and 3, a flat gasket 20 is sleeved on the threaded column 6, the flat gasket 20 is located between the mounting block 5 and the mounting plate 9, one side of the flat gasket 20 abuts against the mounting block 5, the other side of the flat gasket 20 abuts against the bottom of the rotating groove 10, and the outer diameter of the flat gasket 20 is larger than the diameter of the mounting block 5, so that the contact area between the mounting block 5 and the mounting plate 9 is increased. And the flat gasket 20 prevents the mounting block 5 from directly contacting the bottom of the rotating groove 10, thereby reducing the abrasion between the bottom of the rotating groove 10 and the mounting block 5 and prolonging the service life of the mounting plate 9 and the mounting block 5.

Referring to fig. 2 and 3, a spring washer 21 is sleeved on the threaded column 6, the spring washer 21 is located between the mounting block 5 and the flat washer 20, one side of the spring washer 21 abuts against the mounting block 5, the other side of the spring washer 21 abuts against the flat washer 20, and after the threaded column 6 is in threaded fit with the mounting nut 8 through the spring washer 21, looseness is not prone to occurring between the threaded column 6 and the mounting nut 8.

Referring to fig. 2 and 4, baffle 27 is installed to one side that the punch holder 1 is close to mounting panel 9, baffle 27 is located between punch holder 1 and the mounting panel 9, and one side and the punch holder 1 butt of baffle 27, the opposite side and the mounting panel 9 butt of baffle 27, baffle 27 cover is located on the screw thread post 6, set up the third through holes 28 that supply screw thread post 6 to wear to establish on the baffle 27, the diameter of third through holes 28 is greater than the diameter of screw thread post 6, thereby when screw thread post 6 rotates, be difficult to produce wearing and tearing between screw thread post 6 and the baffle 27, prolong the life of screw thread post 6 and baffle 27.

Referring to fig. 2 and 4, a reinforcing strip 22 is integrally arranged on one side of the lower clamp plate 2 away from the upper clamp plate 1, and the structural strength of the lower clamp plate 2 is increased through the reinforcing strip 22, so that the lower clamp plate 2 is not easy to damage. One side of the reinforcing bar 22 far away from the upper clamping plate 1 is provided with a placing groove 23 for placing the mounting nut 8, and the groove wall of the placing groove 23 and the mounting nut 8 are in interference fit, so that the mounting nut 8 is not easy to fall off from the reinforcing bar 22, and the mounting nut 8 is fixed on the reinforcing bar 22 through epoxy resin glue when necessary.

The installation process of the special-shaped parallel groove clamp in the embodiment of the application is as follows:

1. the mounting nut 8 is mounted and fixed in the placement groove 23.

2. Two wires to be spliced are placed in the lower clamping groove 4, the upper clamping plate 1 is placed on the lower clamping plate 2, the raised strips 24 are inserted into the grooves 25 at the moment, and the two wires to be spliced are positioned in the lower clamping groove 4 and the upper clamping groove 3.

3. The partition plate 27 is placed on the side of the upper clamp plate 1 away from the lower clamp plate 2, and the mounting plate 9 is placed on the side of the partition plate 27 away from the upper clamp plate 1.

4. The spring gasket 21 and the flat gasket 20 are sequentially sleeved on the threaded column 6, and the threaded column 6 sequentially passes through the second through hole 11, the third through hole 28 and the first through hole 7, so that the mounting block 5 is placed in the rotating groove 10, and at the moment, the driving gear 19 is meshed with the transmission gear 18.

5. The limit plate 13 is placed on the side of the mounting plate 9 far away from the partition plate 27, and the limit plate 13 is fixed on the mounting plate 9 through bolts.

6. The installation block 5 is rotated through tools such as an inner hexagonal wrench, the transmission gear 18 is driven to rotate, the transmission gear 18 drives the other installation block 5 to rotate, and therefore the bolts are driven to rotate simultaneously until the upper clamping plate 1 and the lower clamping plate 2 compress and fix the lead together.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a heterotypic parallel groove clamp, includes punch holder (1) and lower plate (2), punch holder (1) is provided with two at least, punch holder (1) is close to last double-layered groove (3) have been seted up to one side of lower plate (2), lower plate (2) are close to lower double-layered groove (4), its characterized in that have been seted up to one side of punch holder (1): an installation block (5) is arranged on one side, far away from the lower clamping plate (2), of the upper clamping plate (1), a threaded column (6) is integrally arranged on one side, close to the lower clamping plate (2), of the installation block (5), first through holes (7) for the threaded column (6) to penetrate through are formed in the upper clamping plate (1) and the lower clamping plate (2), and an installation nut (8) used for being in threaded connection with the threaded column (6) is arranged on one side, far away from the upper clamping plate (1), of the lower clamping plate (2);

keep away from punch holder (1) one side of lower plate (2) is provided with mounting panel (9), the confession has been seted up on mounting panel (9) installation piece (5) are placed and pivoted rotation groove (10), the confession has been seted up on mounting panel (9) second wearing to establish hole (11) that threaded post (6) were worn to establish, rotation groove (10) with second wearing to establish hole (11) intercommunication each other, be provided with on mounting panel (9) be used for with a plurality of installation piece (5) rotate runner assembly (12) of connecting, runner assembly (12) drive a plurality of installation piece (5) syntropy is rotated.

2. The special-shaped parallel groove clamp according to claim 1, wherein: keep away from mounting panel (9) one side of punch holder (1) is provided with limiting plate (13), limiting plate (13) be used for with installation piece (5) spacing in rotate in groove (10), installation piece (5) are kept away from supply instrument to insert and pivoted operation groove (14) have been seted up to one side of screw thread post (6), set up on limiting plate (13) and supply the instrument to wear to establish and insert to operation hole (15) in operation groove (14).

3. The profiled parallel groove clamp of claim 2, wherein: the rotating assembly (12) comprises a fixing column (16), a bearing (17) and a transmission gear (18), the fixing column (16) is arranged on one side, away from the upper clamping plate (1), of the mounting plate (9), the fixing column (16) is located at the bottom of the rotating groove (10), the bearing (17) is sleeved and fixed on the fixing column (16), the transmission gear (18) is sleeved and rotatably connected to the bearing (17), a plurality of driving tooth pieces (19) meshed with the transmission gear (18) are arranged on the mounting block (5), and the transmission gear (18) drives the driving tooth pieces (19) to rotate in the same direction.

4. The profiled parallel groove clamp of claim 1, wherein: the cover is equipped with flat gasket (20) on screw thread post (6), flat gasket (20) are located mounting panel (9) with between installation piece (5), just one side of flat gasket (20) with the tank bottom butt of rotating groove (10), the opposite side of flat gasket (20) with installation piece (5) butt.

5. The special-shaped parallel groove clamp according to claim 4, wherein: the threaded column (6) is sleeved with a spring gasket (21), the spring gasket (21) is located between the flat gasket (20) and the mounting block (5), one side of the spring gasket (21) is abutted to the flat gasket (20), and the spring gasket (21) is abutted to the mounting block (5).

6. The special-shaped parallel groove clamp according to claim 1, wherein: one side of the lower clamping plate (2) far away from the upper clamping plate (1) is integrally provided with a reinforcing strip (22).

7. The special-shaped parallel groove clamp according to claim 6, wherein: and a placing groove (23) for placing and fixing the mounting nut (8) is formed in the reinforcing strip (22).

8. The special-shaped parallel groove clamp according to claim 1, wherein: lower plate (2) are close to one side of punch holder (1) is provided with sand grip (24), punch holder (1) are close to the confession has been seted up to one side of lower plate (2) sand grip (24) insert and recess (25) placed.

9. The special-shaped parallel groove clamp according to claim 1, wherein: the bottom of the upper clamping groove (3) and the bottom of the lower clamping groove (4) are both provided with anti-skid grains (26).

10. The profiled parallel groove clamp of claim 1, wherein: the cover is equipped with baffle (27) on screw thread post (6), baffle (27) are located mounting panel (9) with between punch holder (1), one side of baffle (27) with mounting panel (9) butt, the opposite side of baffle (27) with punch holder (1) butt, the confession has been seted up on baffle (27) the third hole of wearing to establish (28) of screw thread post (6).