CN214134719U

CN214134719U - Steel fixing structure for high-rise steel structure machining

Info

Publication number: CN214134719U
Application number: CN202120041254.3U
Authority: CN
Inventors: 马水芹; 张达晨; 张尧; 俞卫东
Original assignee: Zhejiang Hongding Steel Structure Engineering Co ltd
Current assignee: Zhejiang Hongding Steel Structure Engineering Co ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-09-07
Anticipated expiration: 2031-01-06

Abstract

The utility model provides a steel fixed knot constructs for high-rise steel construction processing belongs to high-rise steel construction processing technology field. This steel fixed knot constructs is used in high-rise steel construction processing, including supporting the base, coupling assembling and fixed subassembly, during the use, make the threaded rod drive first support piece and then drive first splint and remove to the second splint, then alright process steel, when needs rotatory steel, make anchor clamps not at fixed gag lever post, then alright rotatory gag lever post, and then drive the second splint and rotate, and then alright drive steel and rotate, and then can process other faces of steel, need not to dismantle steel alright drive steel rotatory, and then can be comparatively quick drive steel and rotate, therefore can save a large amount of time, and then the efficiency when multiplicable processing screw hole to steel, make the efficiency of steel processing screw hole higher.

Description

Steel fixing structure for high-rise steel structure machining

Technical Field

The utility model relates to a high-rise steel construction processing field particularly, relates to a steel fixed knot constructs for high-rise steel construction processing.

Background

High-rise steel construction generally indicates six layers or more, mainly adopts shaped steel, steel sheet to connect or weld into the component, through the structural system who connects, welds and form again, for the convenience of later stage connection, when the steel that high-rise steel construction used is processed, all set up the screw hole on a plurality of surfaces of steel mostly, and need use fixed knot structure to fix steel when processing the screw hole to steel.

But the unable quick steel that drives of steel fixed knot structure is used in the processing of the high-rise steel construction of present majority is rotatory mostly, when the screw hole is seted up to other faces of steel, mostly need pull down steel then rotatory steel again, then fix steel, and then can waste a large amount of time, and then make the efficiency when processing the screw hole to steel comparatively low.

SUMMERY OF THE UTILITY MODEL

In order to compensate above not enough, the utility model provides a steel fixed knot constructs for high-rise steel construction processing aims at improving the comparatively low problem of efficiency when processing the screw hole to steel.

The utility model discloses a realize like this:

the utility model provides a steel fixed knot constructs is used in high-rise steel construction processing, including supporting base, coupling assembling and fixed subassembly.

Coupling assembling includes connecting plate and threaded rod, the bottom surface of connecting plate with the last fixed surface who supports the base is connected, the threaded rod rotate connect in the upper surface that supports the base.

The fixing component comprises a first supporting piece, a second supporting piece, a first clamping plate, a second clamping plate, a first supporting rod, a limiting rod, a telescopic piece and a clamp, the bottom end of the first supporting piece is connected to the upper surface of the connecting plate in a sliding mode, the bottom end of the first supporting piece is in threaded connection with the threaded rod, the bottom end of the second supporting piece is fixedly connected with the upper surface of the connecting plate, one surface of the first clamping plate is rotatably connected with the top end of the first supporting piece, the center of one surface of the second clamping plate is fixedly connected with one end of the first supporting rod, the second clamping plate is arranged corresponding to the first clamping plate, the rod body of the first supporting rod is rotatably connected with the top end of the second supporting piece, one end of the limiting rod is fixedly connected with the other end of the first supporting rod, and the bottom end of the telescopic piece is fixedly connected with the upper surface of the connecting plate, the fixture is connected to the top end of the telescopic piece, and the limiting rod penetrates through the inside of the fixture.

The utility model discloses an in one embodiment, the spout has been seted up to the upper surface of connecting plate, the threaded rod rotate connect in the inside of spout, the one end of threaded rod rotate run through in one side of spout, the other end of threaded rod with the opposite side of spout rotates to be connected.

In an embodiment of the present invention, the threaded rod is fixedly connected to a first rotating handwheel, and the edge of one side of the first rotating handwheel is connected to a first rotating handle.

In an embodiment of the present invention, the first supporting member includes a first fixing rod, a first connecting rod and a first fastening bolt, the bottom thread of the first fixing rod is sleeved on the rod body of the threaded rod, the bottom sliding connection of the first fixing rod is in the inside of the chute, the first chute is disposed in the inside of the first connecting rod, the first fixing rod is slidably inserted in the inside of the first chute, the first fastening bolt thread runs through the side wall of the bottom of the first connecting rod, and one end of the first fastening bolt is abutted against the first fixing rod.

In an embodiment of the present invention, the second supporting member includes a second fixing rod, a second connecting rod and a second fastening bolt, the bottom end of the second fixing rod is fixedly connected to the upper surface of the connecting plate, a second sliding groove is formed in the second connecting rod, the top end of the second fixing rod is slidably inserted into the second sliding groove, a thread of the second fastening bolt is penetrated through the side wall of the bottom of the second connecting rod, one end of the second fastening bolt is abutted against the second connecting rod, and the first supporting rod is rotated and penetrated through the top end of the second connecting rod.

In an embodiment of the present invention, one side of the first clamping plate is connected to a second supporting rod, and one end of the second supporting rod is connected to the top end of the first connecting rod.

In an embodiment of the present invention, the limiting rod is far away from one end of the first supporting rod is connected to a second rotating handwheel, and the edge of one side of the second rotating handwheel is connected to a second rotating handle.

In an embodiment of the present invention, the telescopic member includes a limiting rod and a sliding rod, the bottom of the limiting rod is fixedly connected to the upper surface of the connecting plate, a limiting groove is formed inside the sliding rod, and the limiting groove is slidably sleeved on the limiting rod.

In an embodiment of the present invention, the clamp includes a fixing sleeve ring, a third fastening bolt and a clamping plate, the bottom of the fixing sleeve ring is fixedly connected to the top of the sliding rod, a thread of the third fastening bolt runs through the top wall of the fixing sleeve ring, the clamping plate is located inside the fixing sleeve ring, and the upper surface of the clamping plate is rotatably connected to one end of the third fastening bolt.

In an embodiment of the present invention, the second clamping plate is close to one side of the first clamping plate is provided with anti-slip patterns, and the first clamping plate is close to one side of the second clamping plate is also provided with anti-slip patterns.

The utility model has the advantages that: the utility model relates to a steel fixing structure for high-rise steel structure processing, when in use, the limiting rod is fixed by the clamp, then the steel is placed between the first clamping plate and the second clamping plate, then the threaded rod is rotated, the threaded rod drives the first supporting piece and further drives the first clamping plate to move towards the second clamping plate, then the steel can be clamped and fixed, then the steel can be processed, when the steel needs to be rotated, the clamp is not used for fixing the limiting rod, then the limiting rod can be rotated, and further the second clamping plate is driven to rotate, so that the steel can be driven to rotate, further other faces of the steel can be processed, the steel can be driven to rotate without disassembling the steel, further the steel can be driven to rotate relatively quickly, thereby saving a large amount of time, and further increasing the efficiency of the steel when processing a threaded hole, the efficiency of processing the threaded hole by the steel is higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of the overall structure of a steel fixing structure for processing a high-rise steel structure according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a part of the supporting base and the connecting assembly provided in the embodiment of the present invention;

fig. 3 is a schematic structural view of a part of the connecting assembly and the fixing assembly provided in the embodiment of the present invention;

fig. 4 is a schematic structural view of a first support member and a first splint portion according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a second supporting member and a second clamping plate part provided in an embodiment of the present invention;

fig. 6 is a schematic structural view of a second supporting member according to an embodiment of the present invention;

fig. 7 is a schematic structural view of an expansion member according to an embodiment of the present invention.

In the figure: 100-a support base; 200-a connection assembly; 210-a connecting plate; 211-a chute; 220-a threaded rod; 221-a first rotating handle; 300-a stationary component; 310-a first support; 311-a first fixing bar; 312-a first connecting rod; 3121-a first chute; 313-a first fastening bolt; 320-a second support; 321-a second fixing bar; 322-a second connecting rod; 3221-a second chute; 323-second fastening bolt; 330-a first splint; 331-a second support bar; 340-a second splint; 350-a first support bar; 360-a limiting rod; 361-a second rotating handwheel; 362-a second rotary handle; 370-a telescoping member; 371-gag lever post; 372-a slide bar; 3721-limit groove; 380-a clamp; 381-a fixed collar; 382-a third fastening bolt; 383-splint.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides a steel fixing structure for processing a high-rise steel structure, which includes a supporting base 100, a connecting assembly 200 and a fixing assembly 300.

Referring to fig. 1 and 2, the connection assembly 200 includes a connection plate 210 and a threaded rod 220, a bottom surface of the connection plate 210 is fixedly connected to an upper surface of the support base 100, the bottom surface of the connection plate 210 is connected to the upper surface of the support base 100 by welding, the threaded rod 220 is rotatably connected to the upper surface of the support base 100, a sliding groove 211 is formed in the upper surface of the connection plate 210, the threaded rod 220 is rotatably connected to the inside of the sliding groove 211, one end of the threaded rod 220 is rotatably penetrated to one side of the sliding groove 211 by a bearing, one end of the threaded rod 220 is fixedly connected to a first rotating handle disc, one side of the first rotating handle disc is connected to a first rotating handle 221, the first rotating handle 221 is convenient to rotate the threaded rod 220, the other end of the threaded rod 220 is rotatably connected to the other side of the sliding groove 211, and the other end of the threaded rod 220 is rotatably connected to the other side of the sliding groove 211 by a bearing.

Referring to fig. 1-7, the fixing assembly 300 includes a first supporting member 310, a second supporting member 320, a first clamping plate 330, a second clamping plate 340, a first supporting rod 350, a limiting rod 360, an expansion member 370 and a clamp 380, wherein a bottom end of the first supporting member 310 is slidably connected to an upper surface of the connecting plate 210, a bottom end of the first supporting member 310 is in threaded connection with the threaded rod 220, the first supporting member 310 includes a first fixing rod 311, a first connecting rod 312 and a first fastening bolt 313, a bottom end of the first fixing rod 311 is in threaded connection with a rod body of the threaded rod 220, a bottom end of the first fixing rod 311 is slidably connected to an inner portion of the sliding groove 211, the threaded rod 220 is rotated to drive the first fixing rod 311 to move, a first sliding groove 3121 is formed in the first connecting rod 312, the first fixing rod 311 is slidably inserted into the first sliding groove 3121, the first fastening bolt 313 is in threaded connection with a side wall of a bottom of the first connecting rod 312, one end of the first fastening bolt 313 abuts against the first fixing rod 311, the first fastening bolt 313 is rotated to prevent the first fastening bolt 313 from abutting against the first fixing rod 311, and then the first connecting rod 312 can be moved up and down.

When the concrete setting is performed, the bottom end of the second supporting member 320 is fixedly connected with the upper surface of the connecting plate 210, the second supporting member 320 includes a second fixing rod 321, a second connecting rod 322 and a second fastening bolt 323, the bottom end of the second fixing rod 321 is fixedly connected with the upper surface of the connecting plate 210, the bottom end of the second fixing rod 321 is connected with the upper surface of the connecting plate 210 by welding, a second sliding groove 3221 is formed in the second connecting rod 322, the top end of the second fixing rod 321 is slidably inserted into the second sliding groove 3221, one end of the second fastening bolt 323 penetrates through the side wall of the bottom of the second connecting rod 322, one end of the second fastening bolt 323 abuts against the second connecting rod 322, and the second fastening bolt 323 is rotated to prevent the second fastening bolt 323 from abutting against the second connecting rod 322, so that the second connecting rod 322 can move up and down.

In this application, one side of the first clamping plate 330 is rotatably connected to the top end of the first supporting member 310, one side of the first clamping plate 330 is connected to the second supporting rod 331, one end of the second supporting rod 331 is rotatably connected to the top end of the first connecting rod 312 through a turntable bearing, the center of one side of the second clamping plate 340 is fixedly connected to one end of the first supporting rod 350, the rod body of the first supporting rod 350 is rotatably connected to the top end of the second supporting member 320, the rod body of the first supporting rod 350 is rotatably penetrated to the top end of the second connecting rod 322 through a turntable bearing, the cross section of the first supporting rod 350 is circular, the circular shape facilitates the rotation of the rod body of the first supporting rod 350 through a turntable bearing, and the second clamping plate 340 is correspondingly disposed to the first clamping plate 330.

In this embodiment, the rotating screw rod 220 drives the first fixing rod 311 to move, and further drives the first connecting rod 312 to move, thereby driving the first clamping plate 330 to move, and further driving the first clamping plate 330 to move toward the second clamping plate 340, thereby clamping and fixing the object between the first clamping plate 330 and the second clamping plate 340, steel can be placed between the first clamping plate 330 and the second clamping plate 340, so that the first clamping plate 330 and the second clamping plate 340 clamp and fix the steel, the surface of the second clamping plate 340 close to the first clamping plate 330 is provided with anti-slip lines, the surface of the first clamping plate 330 close to the second clamping plate 340 is also provided with anti-slip lines, the anti-slip lines are used for preventing slipping, when the first clamping plate 330 and the second clamping plate 340 clamp and fix the steel, the anti-slip threads can make the fixation more firm, and the first connecting rod 312 and the second connecting rod 322 can move up and down, so that the first clamping plate 330 and the second clamping plate 340 can clamp steel materials with different specifications.

When specifically setting up, the one end of gag lever post 360 and first bracing piece 350's other end fixed connection, rotatory gag lever post 360 alright drive first bracing piece 350 rotatory, and then alright drive second splint 340 and rotate, the one end that first bracing piece 350 was kept away from to gag lever post 360 is connected with the rotatory hand dish 361 of second, the edge connection of the rotatory hand dish 361 one side of second has second twist grip 362, the rotatory hand dish 361 of second and second twist grip 362 conveniently rotate gag lever post 360, and then conveniently rotate second splint 340.

In this application, the bottom of extensible member 370 is connected with the last fixed surface of connecting plate 210, and extensible member 370 includes gag lever post 371 and slide bar 372, and the bottom of gag lever post 371 is connected with the last fixed surface of connecting plate 210, and spacing groove 3721 is seted up to the inside of slide bar 372, and spacing groove 3721 slides and cup joints in gag lever post 371.

In this embodiment, the clamp 380 is connected to the top end of the telescopic member 370, the clamp 380 includes a fixing collar 381, a third fastening bolt 382 and a clamping plate 383, the bottom of the fixing collar 381 is fixedly connected to the top of the sliding rod 372, the fixing collar 381 is connected to the top of the sliding rod 372 by welding, one end of the third fastening bolt 382 is threaded through the top wall of the fixing collar 381, the clamping plate 383 is located inside the fixing collar 381, the upper surface of the clamping plate 383 is rotatably connected to one end of the third fastening bolt 382 by a turntable bearing, the stopper rod 360 is threaded through the clamp 380, the stopper rod 360 is threaded through the fixing collar 381, the third fastening bolt 382 is rotated to drive the clamping plate 383 to move downward, so as to fix the stopper rod 360, and further prevent the second clamping plate 340 from rotating, the cross section of the limiting rod 360 is square, so that the effect of fixing the limiting rod 360 by the clamping plate 383 is better and firmer.

Specifically, this high-rise steel structure processing is with steel fixed knot structure's theory of operation: when the steel bar processing device is used, the third fastening bolt 382 is rotated to enable the third fastening bolt 382 to drive the clamping plate 383 to move downwards, so that the clamping plate 383 fixes the limiting rod 360, then steel is placed between the first clamping plate 330 and the second clamping plate 340, then the threaded rod 220 is rotated to enable the threaded rod 220 to drive the first fixing rod 311 to move towards the second fixing rod 321, so that the first clamping plate 330 is driven to move towards the second clamping plate 340, the steel can be clamped and fixed, then the steel can be processed, when the steel is required to be rotated, the third fastening bolt 382 is rotated to enable the third fastening bolt 382 to drive the clamping plate 383 to move upwards, so that the clamping plate 383 does not clamp and fix the limiting rod 360, then the second rotating handle 362 can be rotated to drive the limiting rod 360 to rotate, so that the second clamping plate 340 can be rotated, so that the steel can be driven to rotate, and other faces of the steel can be processed, need not to dismantle steel alright drive steel rotatory, and then can be comparatively quick drive steel rotate, therefore can save a large amount of time, and then the multiplicable efficiency when processing the screw hole to steel for steel processing screw hole's efficiency is higher.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel fixing structure for processing a high-rise steel structure is characterized by comprising

A support base (100);

the connecting assembly (200) comprises a connecting plate (210) and a threaded rod (220), the bottom surface of the connecting plate (210) is fixedly connected with the upper surface of the supporting base (100), and the threaded rod (220) is rotatably connected with the upper surface of the supporting base (100);

a fixing assembly (300), the fixing assembly (300) includes a first supporting member (310), a second supporting member (320), a first clamping plate (330), a second clamping plate (340), a first supporting rod (350), a limiting rod (360), a telescopic member (370) and a clamp (380), the bottom end of the first supporting member (310) is slidably connected to the upper surface of the connecting plate (210), the bottom end of the first supporting member (310) is in threaded connection with the threaded rod (220), the bottom end of the second supporting member (320) is fixedly connected to the upper surface of the connecting plate (210), one surface of the first clamping plate (330) is rotatably connected to the top end of the first supporting member (310), the center of one surface of the second clamping plate (340) is fixedly connected to one end of the first supporting rod (350), and the second clamping plate (340) is correspondingly arranged to the first clamping plate (330), the body of rod of first bracing piece (350) with the top of second bracing piece (320) is rotated and is connected, the one end of gag lever post (360) with the other end fixed connection of first bracing piece (350), the bottom of extensible member (370) with the last fixed surface of connecting plate (210) is connected, anchor clamps (380) connect in the top of extensible member (370), gag lever post (360) run through in the inside of anchor clamps (380).

2. The steel fixing structure for the high-rise steel structure machining according to claim 1, wherein a sliding groove (211) is formed in the upper surface of the connecting plate (210), the threaded rod (220) is rotatably connected to the inside of the sliding groove (211), one end of the threaded rod (220) is rotatably penetrated through one side of the sliding groove (211), and the other end of the threaded rod (220) is rotatably connected to the other side of the sliding groove (211).

3. The steel fixing structure for the machining of the high-rise steel structure as claimed in claim 1, wherein one end of the threaded rod (220) is fixedly connected with a first rotating hand disc, and a first rotating handle (221) is connected with the edge of one surface of the first rotating hand disc.

4. The steel fixing structure for the machining of the high-rise steel structure as claimed in claim 2, wherein the first supporting member (310) comprises a first fixing rod (311), a first connecting rod (312) and a first fastening bolt (313), the bottom end of the first fixing rod (311) is in threaded sleeve connection with the rod body of the threaded rod (220), the bottom end of the first fixing rod (311) is in sliding connection with the inside of the sliding groove (211), a first sliding groove (3121) is formed in the inside of the first connecting rod (312), the first fixing rod (311) is in sliding insertion connection with the inside of the first sliding groove (3121), the first fastening bolt (313) is in threaded penetrating through the side wall of the bottom of the first connecting rod (312), and one end of the first fastening bolt (313) abuts against the first fixing rod (311).

5. The steel fixing structure for high-rise steel structure processing according to claim 1, the second support (320) includes a second fixing rod (321), a second connecting rod (322), and a second fastening bolt (323), the bottom end of the second fixed rod (321) is fixedly connected with the upper surface of the connecting plate (210), a second sliding groove (3221) is formed in the second connecting rod (322), the top end of the second fixing rod (321) is inserted into the second sliding groove (3221) in a sliding manner, one end of the second fastening bolt (323) penetrates through the side wall of the bottom of the second connecting rod (322) in a threaded manner, one end of the second fastening bolt (323) is abutted against the second connecting rod (322), the rod body of the first supporting rod (350) is rotatably penetrated at the top end of the second connecting rod (322).

6. The steel fixing structure for machining the high-rise steel structure as claimed in claim 4, wherein a second support bar (331) is connected to one surface of the first clamping plate (330), and one end of the second support bar (331) is rotatably connected to the top end of the first connecting bar (312).

7. The steel fixing structure for the machining of the high-rise steel structure as claimed in claim 1, wherein one end of the limiting rod (360) far away from the first supporting rod (350) is connected with a second rotating hand disc (361), and the edge of one surface of the second rotating hand disc (361) is connected with a second rotating handle (362).

8. The steel fixing structure for the high-rise steel structure machining is characterized in that the telescopic piece (370) comprises a limiting rod (371) and a sliding rod (372), the bottom end of the limiting rod (371) is fixedly connected with the upper surface of the connecting plate (210), a limiting groove (3721) is formed in the sliding rod (372), and the limiting groove (3721) is sleeved on the limiting rod (371) in a sliding mode.

9. The steel fixing structure for the machining of the high-rise steel structure is characterized in that the clamp (380) comprises a fixing sleeve ring (381), a third fastening bolt (382) and a clamping plate (383), the bottom of the fixing sleeve ring (381) is fixedly connected with the top of the sliding rod (372), one end of the third fastening bolt (382) penetrates through the top wall of the fixing sleeve ring (381), the clamping plate (383) is located inside the fixing sleeve ring (381), and the upper surface of the clamping plate (383) is rotatably connected with one end of the third fastening bolt (382).

10. The steel fixing structure for machining the high-rise steel structure as claimed in claim 1, wherein the surface of the second clamping plate (340) close to the first clamping plate (330) is provided with anti-slip lines, and the surface of the first clamping plate (330) close to the second clamping plate (340) is also provided with the anti-slip lines.