CN112696002A

CN112696002A - Scaffold wall connecting piece manufacturing system

Info

Publication number: CN112696002A
Application number: CN202011587588.7A
Authority: CN
Inventors: 曹晓良
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-04-23

Abstract

The invention discloses a scaffold wall connecting piece manufacturing system which comprises a template, a wall connecting anchor seat and a wall connecting anchor tool, wherein the wall connecting anchor tool is a tube body, the tube body is provided with a 1 fluorescent tube thread internal thread, the wall connecting anchor seat is provided with an inserting section and a fixing section, the inserting section is provided with a 1 fluorescent tube thread external thread matched with the tube thread internal thread, and the fixing section is fixed with the template. By using the sleeve system, the wall connecting anchor can be completely embedded in a building structure without damage, so that the wall connecting anchor has a higher anti-pulling function, and the reserved hole can enable the wall connecting horizontal rod to be directly inserted into and connected with the wall connecting anchor, so that an intermediate connector is omitted, the rigidity and tensile strength of the wall connecting horizontal rod are improved, the seamless connection of the wall connecting horizontal rod and the wall connecting anchor is realized, and the real rigid connection is realized.

Description

Scaffold wall connecting piece manufacturing system

Technical Field

The invention relates to the field of construction and construction, in particular to a scaffold wall connecting piece manufacturing system.

Background

The following background is provided to aid the reader in understanding the present invention and is not admitted to be prior art.

The scaffold is wall spare even for being connected scaffold body and building major structure in building engineering, the component that can transmit pulling force and shear force. The wall attachment connection realized by the wall connecting piece plays an important role in strengthening the integral rigidity and stability of the scaffold, improving the stable bearing capacity of the scaffold and avoiding major accidents such as toppling or collapsing.

However, the conventional wall connecting piece of the scaffold generally comprises rigid pull rods or members such as steel pipes, fasteners, embedded pieces (pre-embedded pipes) and the like, and the design has some disadvantages. Firstly, the embedded parts in the wall connecting parts are usually steel pipes and are basically poured in the beams or the walls, the embedded parts and the wall connecting horizontal rods are usually fasteners, but the wall connecting horizontal rods are easy to loosen and even slide out under the shaking of strong storms and the erosion of rain and snow. The anti-drawing force is weak, so that the scaffold is deformed or collapsed, and unnecessary economic loss and safety accidents are possibly brought to construction enterprises. Secondly, after the masonry construction is completed, the steel pipes and the fasteners in the wall connecting pieces cannot be integrally detached due to the fact that the steel pipes and the fasteners are arranged in the wall (poured), only one section of the exposed wall can be cut off, and the cut steel pipes and the cut fasteners cannot be reused, so that the cost is increased. And thirdly, the reserved wall connecting piece for wall building has deep and long holes, so that the wall connecting piece is not easy to inlay and compact, and rainwater is easy to permeate into the wall along the residual steel pipe in the later house using process, so that the indoor damp and mildew are caused, and the living is influenced.

In addition, the traditional wall connecting piece manufacturing system is not convenient enough to manufacture the wall connecting piece, low in efficiency, high in cost and limited in large-scale popularization and use.

Disclosure of Invention

The invention aims to provide a scaffold wall connecting piece manufacturing system, by using the sleeve system, not only can a wall connecting anchor be completely and nondestructively embedded in a building structure, so that the wall connecting anchor has a higher pulling-resistant function, but also a reserved hole can enable a wall connecting horizontal rod to be directly inserted into and connected with the wall connecting anchor, an intermediate connector is omitted, the rigidity and the tensile strength of the wall connecting horizontal rod are improved, the seamless connection between the wall connecting horizontal rod and the wall connecting anchor is realized, and the true rigid connection is realized.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a scaffold frame is wall spare manufacturing system even, includes template, even wall anchor seat and even wall anchor utensil, even wall anchor utensil is the body, and the body is equipped with 1 fluorescent tube screw thread internal thread, and even wall anchor seat has a run-in section and a canned paragraph, and the run-in section is equipped with 1 fluorescent tube screw thread external thread anastomotic with the pipe thread internal thread, and the canned paragraph is fixed with the template.

The scaffold wall connecting piece manufacturing system comprises a template, a wall connecting anchor seat and a wall connecting anchor, and is used for embedding the wall connecting anchor and a preformed hole in a building structure. And screwing the wall-connected anchor into the wall-connected anchor seat insertion section, fixing the wall-connected anchor seat and the template, removing the template after concrete pouring is condensed, removing the wall-connected anchor seat, or removing the wall-connected anchor seat and the template simultaneously, cleaning a hole for inserting the wall-connected horizontal rod, and pouring the wall-connected anchor with the anti-pulling effect into the building structure for connecting the wall-connected horizontal rod. By using the sleeve system, the wall connecting anchor can be completely embedded in a building structure without damage, so that the wall connecting anchor has a higher anti-pulling function, and the reserved hole can enable the wall connecting horizontal rod to be directly inserted into and connected with the wall connecting anchor, so that an intermediate connector is omitted, the rigidity and tensile strength of the wall connecting horizontal rod are improved, the seamless connection of the wall connecting horizontal rod and the wall connecting anchor is realized, and the real rigid connection is realized. The system is simple in structure, easy to manufacture and low in cost of all components. If the wall-connected anchor seat can be repeatedly recycled, the number of recycling times can reach 30-50. And under the use of the set of system, the manufacturing process of the scaffold wall connecting piece is simpler, and the manufacturing cost is lower.

Scaffold wall connecting piece

In the construction engineering of buildings, the existing wall connecting part of the scaffold generally comprises rigid pull rods or members such as embedded parts (generally steel pipes), vertical rods and fasteners. The embedded parts are also generally vertical rods, and are partially embedded in building structures such as concrete poured structural beams, structural columns, walls and the like. The inner end of the wall connecting horizontal rod is connected with a building embedded component (fastener), and the outer end of the wall connecting horizontal rod is connected and fixed with the vertical upright rod of the scaffold through the fastener to form a drawknot.

Form panel

The template is used for fixing the wall-connected anchor seat. The template can adopt one of plank sheathing, plywood template, steel form, aluminum alloy template, plastic formwork, and the template is all the plane in the inside and outside, and the template thickness of different materials is different, and plank sheathing, plywood template, plastic formwork are general thick 12~18mm, and steel, aluminum formwork are general thick 3~5 mm. The template belongs to the prior art, and the selection of the template can be determined according to requirements.

Wall-connected anchor

The wall connecting anchor is pre-embedded in a building structure and is used for connecting a wall connecting horizontal rod. The building structure is formed from concrete casting, including but not limited to, structural beams, structural columns, walls, and the like.

Preferably, the wall connecting anchor is made of steel.

The wall-connecting anchorage device is a tube body which is provided with a 1 south tube thread internal thread. The 1 Be pipe thread is a taper thread with a thread form angle of 55 degrees, a large diameter 47.803, a small diameter 44.845, a thread pitch of 2.309 and a thread height of 1.479. The 1 GE pipe thread is adopted, and the 1 GE pipe thread of the specification is matched with the sizes of the scaffold steel pipe and the connecting fastener in size, so that the market applicability is strong. The 1 Be pipe thread is arranged on the inner wall of the pipe body instead of the outer wall of the pipe body, so that the contact area between the surface of the pipe body and concrete is increased, the friction force between the wall-connecting anchor and a building structure is enhanced, and the anti-drawing performance of the wall-connecting anchor is improved.

Preferably, the tube body is axially through-going. That is to say, the pipe body afterbody port need not to seal, saves the cost.

Preferably, the outer wall of the pipe body is provided with a bulge. The protrusions on the wall connecting anchor are matched with the clamping grooves formed by the concrete pouring wall connecting anchor to form an anti-pulling structure, and the anti-pulling effect is good.

The arrangement of the projections can be provided in a variety of ways,

the first method comprises the following steps:

the protrusions are arranged in a ring shape along the circumference of the tube body. Therefore, the contact area between the wall connecting anchorage and the clamping groove of the building structure is increased, and the anti-pulling effect is enhanced.

Preferably, the number of the convex rings is one or more. When the pulling resistance is one, the protruding ring is arranged at the tail part of the pipe body, so that the pulling resistance is stronger. When a plurality of the anti-pulling rings are arranged, the protruding rings can be arranged at equal intervals, so that the anti-pulling effect is better and the stress is uniform. It will be appreciated that the number of raised rings is not limiting. The tail of the pipe body is the end close to the concrete.

Preferably, the distance between the bulge ring and the tail end face of the pipe body is 3.0 mm. That is, when one bulge loop is provided, the distance between the bulge loop and the end surface of the tail part of the pipe body is 3.0 mm; when a plurality of protruding rings are arranged, the protruding rings which are arranged outwards as required and close to the tail of the pipe body are 3.0mm away from the end face of the tail of the pipe body.

Preferably, the bulge loop is made of a steel material with the diameter of 3-6 mm.

Preferably, the raised ring is welded to the outer wall of the tube body.

The production process of the scheme wall-connected anchor comprises the following steps:

the pipe body and the bulges are respectively processed firstly, and then the bulges are welded on the pipe body. The production process of the scheme is simple, and the produced wall-connected anchor has a good anti-pulling effect.

And the second method comprises the following steps: the bulge is in a multi-petal horn shape and is arranged at the tail part of the tube body.

Preferably, the inclination angle of the protrusion is 30-75 degrees. The inclined angle of the bulge is preferably 30-75 degrees, and the anti-pulling effect of the wall connecting anchorage device is good.

Preferably, the protrusion is formed by one-time forging and pressing.

The production process of the wall-connected anchor comprises the following steps:

the convex forging and pressing molding needs to be completed simultaneously by the processes of notching and forging and pressing molding, and additional materials are not needed. The production process of the scheme is simple, and the produced wall-connected anchor has the optimal anti-pulling effect.

And the third is that: a groove is formed along the outer wall of the pipe body in a slotting mode, the side wall of the groove is a protrusion, and the distance between the groove and the tail end face of the pipe body is 3.0 mm.

Preferably, the groove is a ring-shaped groove. Namely, the groove is formed along the circumference of the pipe body to form a ring shape, and the drawing resistance effect is good.

Preferably, the width of the annular groove is 3-5 mm, and the depth of the annular groove is 2 mm. That is, the height of the projection formed by the side wall of the groove was 2 mm.

Preferably, the annular grooves are one or more, and when the annular grooves are multiple, the annular grooves are distributed along the axial direction of the pipe body. When the pull-out resistance is one, the annular groove is formed in the tail of the pipe body, so that the pull-out resistance is stronger. When a plurality of annular grooves are arranged, the annular grooves can be arranged at equal intervals, so that the stress is uniform, and the anti-pulling effect is better. It is to be understood that the number of ring-shaped grooves is not limited.

and cutting a groove with the width of 3-5 mm and the depth of 2mm on the outer wall of the pipe body. The scheme has the advantages of simple production process, no additional material, higher processing efficiency and better anti-drawing effect of the produced wall connecting anchor. And the cost is low, and the investment of the material of the convex steel ring can be saved.

In the three schemes:

the length of the tube body is 30-60 mm, the wall thickness is 3.5-4.5 mm, the outer diameter is 51-53 mm, and the inner diameter is 42-44 mm. The wall connecting anchor is most economical when the length is 30-60 mm, the using function can be met, the length can be lengthened, and the cost is correspondingly increased. The wall-connected anchor is most economical when the outer diameter is 51-53 mm, the use requirement can be met, the cost is lowest, the wall-connected anchor is not economical when the outer diameter is larger than 53mm, and the processed wall is too thin and easy to deform when the outer diameter is smaller than 51 mm.

Preferably, the thread inner thread of the 1 Be tube has the depth of 25-30 mm.

Wall-connected anchor seat

The wall-connected anchor seat is poured in a building structure by concrete, and is dismantled after the concrete is solidified, and a hole for inserting the wall-connected horizontal rod is reserved, so that the wall-connected horizontal rod inserting hole is in threaded connection with the wall-connected anchor.

In some preferred schemes, the wall connecting anchor seat is made of plastic and is formed by one-time injection molding. The wall-connected anchor block made of plastic is not suitable for being bonded with concrete, and the circular hole and the square sleeve wrench socket can be slightly deformed and not damaged under the action of external force when being detached, so that the detachment is facilitated.

In some preferred schemes, the wall-connected anchor seat is axially provided with a square sleeve wrench socket, and the square sleeve wrench socket is positioned at the belly of the wall-connected anchor seat. The square socket wrench socket is convenient for the wrench to rotate and not slide when the wall-connected anchor seat is detached. Preferably, the square socket wrench socket is 31mm x 31mm deep by 30 mm.

Preferably, set up the circular port that the aperture is greater than it at square socket wrench socket front end, make things convenient for the spanner to insert. When the wall-connected anchor seat is dismantled, the wrench firstly passes through the circular hole and then is inserted into the socket of the square socket wrench.

In some preferred embodiments, the insertion section is tubular, with a closed caudal port, 30mm long and 2.0mm wall thickness, and is provided with a 1 North tubular threaded outer filament, 30mm long. The 1 WD tubular threads on the outer wall of the insertion section are matched with the 1 WD tubular threads on the inner wall of the wall anchor, so that the insertion section can be screwed into the wall anchor. The wall connecting anchor seat is not axially through and seals the tail end port of the wall connecting anchor seat, so that the whole circular hole and the square sleeve wrench socket are prevented from being filled during concrete construction.

In some preferred embodiments, the pipe thread external thread covers the entire insertion section.

In some preferred embodiments, the retaining segment is cylindrical, 25mm long, 2.0mm wall thickness, and 54mm outer diameter.

In some preferred schemes, a middle section is arranged between the fixed section and the insertion section, the middle section is conical, and the middle section is retracted inwards from the direction of the fixed section to the direction of the insertion section. The middle section is set to be a conical body, so that the wall-connected anchor seat can be conveniently detached.

Preferably, the middle section is 30mm long, the wall thickness is 2.0mm, the major diameter is 52mm, the minor diameter is 50mm, the major diameter of the middle section is smaller than the outer diameter of the fixed section, and the minor diameter of the middle section is larger than the outer diameter of the inserting section. Big footpath is the one end that is close to the canned paragraph, and the path is the one end that is close to the inserted section, so choose for use 50mm of path, because standard scaffold steel pipe external diameter is 48.3mm, plus-minus tolerance external diameter can not exceed 49mm, so the design is 50mm, even wall horizon bar inserts and can not receive the influence, and lateral wall concrete can retrain even wall horizon bar and warp when simultaneously the outer frame concentrates to pile and carries the atress, ensures the safe handling of pipe thread connection point.

Preferably, the minor diameter of the middle section is smaller than the outer diameter of the pipe body. When the insertion section is inserted into the pipe body, the small diameter of the middle section is slightly smaller than the outer diameter of the pipe body, so that the outer end face of the pipe body is restrained on concrete, and the tensile drawing strength of the wall connecting anchor is enhanced.

Preferably, the intermediate section has a smooth surface. The smooth surface is convenient for the removal of the wall-connected anchor seat.

The fixed section is provided with a fixed part, the fixed section is fixed with the template through the fixed part, the arrangement scheme of the fixed part is various,

the first method comprises the following steps:

the fixed section port edge sets up the flange, and the flange is equipped with the screw hole, and the fixed part is screw hole and screw.

When the wall-connected anchor seat is installed, the template is installed firstly, then the wall-connected anchor seat is tightly attached to the inner side of the template, and the wall-connected anchor seat is screwed and fixed on the inner side of the template through the template and the screw holes by using 4M4 self-tapping screws. The fixing method does not need to damage the template, the template can be repeatedly recycled, the construction cost is reduced, and the template dismounting operation is convenient and fast.

Or, firstly, a circular hole with the diameter of 55mm is formed in the template, then the wall-connected anchor seat is inserted into the circular hole, and the wall-connected anchor seat is fixed on the outer side of the template through a screw hole on the flange by using a 4M4 self-tapping screw, and at the moment, the template is fixed with the wall-connected anchor seat. The fixing method is not influenced by a template dismantling process, the wall-connected anchor seat can be dismantled under the condition that the template is not dismantled, the wall-connected horizontal rod is arranged, the potential safety hazard that the operation surface is higher than the outer frame is eliminated, and the risk of high falling at the edge is eliminated. Meanwhile, the fixing method of the damaged wall-connected anchor seat of the template can effectively prevent slurry from permeating into the circular hole of the wall-connected anchor seat and the square sleeve wrench socket during concrete pouring construction.

Preferably, the flange is an annular shaped flange. Preferably, the annular flange has a wall thickness of 4.0mm and an outer diameter of 70 mm.

Preferably, the screw holes are circumferentially arranged in a plurality at equal intervals. Preferably, four screw holes are circumferentially arranged at equal intervals.

Preferably, the end face of the annular flange is provided with an anti-slip groove along the circumferential direction, and the screw hole is formed in the anti-slip groove. That is to say

And the groove is formed along the circumferential direction of the position of the screw hole. The anti-slip groove prevents the screw hole from being damaged in the using process and avoids the screw from slipping when the fixed position is changed.

Preferably, the non-slip groove has a width of 3.0mm, a depth of 1.0mm and an outer diameter of 64mm, which is 1mm lower than the top of the flange. The anti-slip groove is slightly lower than the flange plane, and the contact surface with the template can be tighter after the fixing screw is screwed down, so that the slurry seeping in the socket of the square sleeve wrench of the wall-connected anchor seat during concrete construction is reduced.

In some preferred schemes, the outer surface of the fixed section is provided with screw threads. The arrangement of the thread of the fixed section is more favorable for the dismantling of the wall-connected anchor seat.

In some preferred embodiments, the form panel is damaged and fixed with the wall anchor seat, that is, when the wall anchor seat is inserted into the circular hole of the form panel, the fixing section is preferably longer than the thickness of the form panel, the contact surface of the form panel and the fixing section is a smooth surface, and the non-contact surface is provided with threads. Therefore, the inner thread is formed by bonding the concrete on the side wall of the hole and the thread surface of the fixed section, and the wall-connected anchor seat is convenient to detach.

The fixed part is screw hole and screw, and when the template was harmless even the wall anchor seat is fixed, the scaffold was even the preparation technology of wall spare does:

(1) screwing the wall connecting anchor into the wall connecting anchor seat and screwing tightly;

(2) 4M4 self-tapping screws 40 are adopted at the arrangement position of the wall connecting horizontal rod 6 from the outer side of the template to the inner side, and the wall connecting anchor seat 2 is fixed at the inner side of the template 1 and is screwed and fixed;

(3) after concrete is poured for 12 hours (initial setting), the screws for fixing the wall connecting anchor seat and the template are removed;

(4) after concrete is poured for 24 hours, the template and the wall connecting anchor seat are removed, holes are reserved, and wall connecting anchors are embedded

Within the concrete;

(5) a wall-connecting horizontal rod with an outer diameter of 48.3mm, a wall thickness of 3.0-3.6 mm and a 1 floor pipe thread outer thread at one end is inserted into a hole, screwed into the wall-connecting anchor and tightened.

The fixing part is a screw hole and a screw, and when the template is fixed by the wall connecting anchor seat, the scaffold is connected with the wall member

The process comprises the following steps:

(2) firstly, forming a circular hole with the diameter of 55mm on the template at the position where the horizontal rod of the wall is arranged, then inserting the anchor seat of the wall into the circular hole, and fixing the anchor seat of the wall outside the template by using a 4M 4-40 self-tapping screw;

(3) removing screws for fixing the wall anchor seat and the template after concrete pouring for 12 hours (initial setting), removing the wall anchor seat after concrete pouring for 24 hours, and then removing the template, or removing the wall anchor seat and the template after concrete pouring for 24 hours, reserving holes, and pre-burying the wall anchor in concrete;

(4) a wall-connecting horizontal rod with an outer diameter of 48.3mm, a wall thickness of 3.0-3.6 mm and a 1 floor pipe thread outer thread at one end is inserted into a hole, screwed into the wall-connecting anchor and tightened.

And the second method comprises the following steps:

the fixed part includes the flange that sets up along the canned paragraph port, along the screw thread and the nut that the canned paragraph surface set up press from both sides tight seat, and nut presss from both sides tight seat and is equipped with the internal thread with canned paragraph surface screw thread matched with.

When the wall connecting anchor seat is installed, a circular hole with the diameter of 55mm is formed in the template, then the wall connecting anchor seat is inserted into the circular hole, the thread surface of the fixing section of the wall connecting anchor seat is contacted with the template, the nut clamping seat is screwed from inside to outside to fix the template between the flange and the nut clamping seat, and the wall connecting anchor seat is fixed. Compared with the first scheme which needs screw fixation, the scheme does not need self-tapping screws. The screw thread of the fixed section is matched with the nut clamping seat for screwing the nut clamping seat to fasten the template, so that the template is more firmly fixed with the wall-connected anchor seat. Therefore, under the dual action of the thread and the nut clamping seat, the wall connecting anchor seat is not easy to damage, deform and shift under the action of external force, and the wall connecting anchor seat is more firmly and reliably fixed.

Preferably, the nut clamping seat is conical, and the outer diameter of the head part is larger than that of the tail part. The head is the end near the opening of the hole. The conical nut clamping seat is convenient to remove. When the template is clamped, the head of the nut clamping seat is attached to the template, and a certain attaching plane is arranged between the nut clamping seat and the template, so that the effect of clamping the template can be achieved.

Preferably, the nut clamping seat is made of plastic. The plastic nut clamping seat can be used repeatedly without limit, and is low in cost and easy to detach.

When the fixing part is a flange, a thread and a nut clamping seat, the manufacturing process of the scaffold wall connecting piece is as follows:

(2) firstly, forming a circular hole with the diameter of 55mm on the template at the position where the horizontal rod is arranged on the wall, then inserting the wall-connected anchor seat into the circular hole, enabling the thread surface of the fixing section of the wall-connected anchor seat to be in contact with the template, screwing the nut clamping seat from inside to outside to fix the template between the flange and the nut clamping seat, and fixing the wall-connected anchor seat;

(3) after concrete is poured for 24 hours, removing the wall connecting anchor seat and the template, removing the nut clamping seat, reserving a hole, and pre-embedding the wall connecting anchor in the concrete;

The invention has the beneficial effects that:

1. by using the sleeve system, the wall connecting anchor can be completely embedded in a building structure without damage, so that the wall connecting anchor has a higher anti-pulling function, and the reserved hole can enable the wall connecting horizontal rod to be directly inserted into and connected with the wall connecting anchor, so that an intermediate connector is omitted, the rigidity and tensile strength of the wall connecting horizontal rod are improved, the seamless connection of the wall connecting horizontal rod and the wall connecting anchor is realized, and the real rigid connection is realized.

2. The wall connecting horizontal rod is in threaded connection with the wall connecting anchor, and the wall connecting horizontal rod can be detached and reused for many times, so that the construction cost is greatly reduced.

3. After the building construction is finished, the wall connecting horizontal rod is screwed out to fill the hole, and the wall connecting anchor is plugged in the building structure, so that rainwater is prevented from permeating into the wall.

4. The wall-connected anchor seat can be repeatedly recycled, and the number of recycling times can reach 30-50 times.

Drawings

FIG. 1 is a block diagram of the present invention.

FIG. 2 is an exploded view of the manufacturing system.

Fig. 3 is a structural view of the wall connecting horizontal rod inserted into the wall connecting anchor.

Fig. 4 is a structural view of a first embodiment of a wall anchor.

FIG. 5 is a cross-sectional view of a first alternative wall anchor.

Fig. 6 is a structural view of a second embodiment of the wall anchor.

Fig. 7 is a cross-sectional view of a second embodiment of the wall anchor.

Fig. 8 is a structural view of a third embodiment of the wall anchor.

Fig. 9 is a cross-sectional view of a third embodiment of the wall anchor.

Fig. 10 is a front view of the wall anchor base.

Fig. 11 is a side view of the wall anchor base.

Fig. 12 is a structural view illustrating a method of fixing a template damaged wall anchor base.

Fig. 13 is a block diagram of another method of securing a template lossy wall anchor base.

The labels in the figure are: template 1 even wall anchor seat 2 even wall anchor utensil 3, hole 4, draw-in groove 5 even wall horizontal rod 6, inserts section 21, canned paragraph 22, interlude 23, square sleeve wrench socket 24, circular port 25, screw 221, flange 222, screw hole 223, antiskid groove 224, nut presss from both sides tight seat 225, body 31, arch 32, recess 33.

Detailed Description

The present invention will be further described with reference to the structures or terms used herein. The description is given for the sake of example only, to illustrate how the invention may be implemented, and does not constitute any limitation on the invention.

The invention is further described with reference to the following figures and detailed description. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the positions or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus are not to be construed as limitations of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "fixed" are to be understood broadly, for example, "fixed" may be a fixed connection, a detachable connection, or an integral body; either directly or indirectly through intervening media, or may be interconnected between two elements or in a relationship wherein the two elements interact, unless expressly limited otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

1-13, a scaffolding wall accessory making system includes a form 1, a wall anchor base 2 and a wall anchor 3, the wall anchor 3 including a tubular body 31, the tubular body 31 having a 1 WI tube threaded inner filament, the wall anchor base 2 having a stinger 21 and a fixed section 22, the stinger 21 having a 1 WI tube threaded outer filament mating with the tube threaded inner filament, the fixed section 22 being fixed to the form 1.

The scaffold wall connecting piece manufacturing system comprises a template 1, a wall connecting anchor seat 2 and a wall connecting anchor 3, and is used for embedding the wall connecting anchor 3 and a preformed hole 4 in a building structure. And screwing the wall-connected anchor 3 into the wall-connected anchor seat insertion section 21 and screwing the wall-connected anchor seat insertion section tightly, fixing the wall-connected anchor seat 2 with the template 1, removing the template 1 firstly after concrete pouring and condensation, then removing the wall-connected anchor seat 2, or removing the wall-connected anchor seat 2 firstly, then removing the template 1, cleaning a hole 4 for inserting the wall-connected horizontal rod 6, and pouring the wall-connected anchor 3 with the anti-pulling effect into the building structure for connecting the wall-connected horizontal rod 6. Through using this cover system, not only make even wall anchorage device 3 can be complete, do not have pre-buried in building structure with destruction, make it possess higher tensile, shear function, hole 4 reserved moreover can make even wall horizontal rod 6 disect insertion connect even wall anchorage device 3, exempt from to set up the intermediate junction body, improve the rigidity and the tensile shear strength of even wall horizontal rod 6, realize even wall horizontal rod 6 and the seamless connection of even wall anchorage device 3, play real rigid connection. The system is simple in structure, easy to manufacture and low in cost of all components. If even wall anchor seat 2 can repeatedly have enough to meet the need the utilization, the number of times of having enough to meet the need can reach 30~50 times. And under the use of the set of system, the manufacturing process of the scaffold wall connecting piece is simpler, and the manufacturing cost is lower.

Scaffold wall connecting piece

In the construction engineering of buildings, the existing wall connecting part of the scaffold generally comprises rigid pull rods or members such as embedded parts (generally steel pipes), vertical rods and fasteners. The embedded parts are also vertical rods and are embedded in building structures such as concrete poured structural beams, structural columns, wall bodies and the like. The inner end of the wall connecting horizontal rod is fixedly connected with a building embedded component (fastener), and the outer end of the wall connecting horizontal rod is connected and fixed with the vertical upright rod of the scaffold through the fastener to form a drawknot.

Form panel

As shown in fig. 1, a formwork 1 is used to secure a wall anchorage. The template 1 can adopt one of a wood template, a plywood template, a steel template, an aluminum alloy template and a plastic template, the inside and the outside of the template are planes, the thickness of the templates made of different materials is different, the thickness of the wood template, the thickness of the plywood template and the thickness of the plastic template are 12-18 mm, and the thickness of the steel template and the aluminum template are 3-5 mm. The template belongs to the prior art, and the selection of the template can be determined according to requirements.

Wall-connected anchor

As shown in fig. 3, the wall anchor 3 is pre-embedded in the building structure for connecting to the wall horizontal bar 6. The building structure is formed from concrete casting, including but not limited to, structural beams, structural columns, walls, and the like.

In some embodiments, the wall anchor 3 is made of steel.

The wall anchor 3 is a tube 31, and the tube 31 is provided with a 1 cellular thread internal thread. The 1 Be pipe thread is a taper thread with a thread form angle of 55 degrees, a large diameter 47.803, a small diameter 44.845, a thread pitch of 2.309 and a thread height of 1.479. Because the 1 Be pipe thread of this specification matches with scaffold steel pipe, connecting fastener size homogeneous phase, and market suitability is strong. The 1 Be pipe thread is arranged on the inner wall of the pipe body instead of the outer wall of the pipe body, so that the contact area between the surface of the pipe body and concrete is increased, the friction force between the wall connecting anchor 3 and a building structure is enhanced, and the anti-pulling performance of the wall connecting anchor 3 is improved.

In some embodiments, the tube 31 extends axially therethrough. That is, the tail end of the tube 31 does not need to be closed, so that the cost is saved.

As shown in fig. 2, 4-9, the outer wall of the tube 31 is provided with a protrusion 32. The bulge 32 on the wall connecting anchor is matched with the clamping groove 5 formed by the concrete pouring wall connecting anchor to form an anti-pulling structure, and the anti-pulling effect is good.

The provision of the projections 32 has a number of solutions,

the first method comprises the following steps:

as shown in fig. 4 and 5, the protrusions 32 are provided in a ring shape along the circumference of the tube body 31. So, increased the area of contact of even wall anchor 3 with building structure draw-in groove, the effect reinforcing is pulled out to the tensile.

In some embodiments, the raised ring is one or more. When the number of the protrusions is one, the protrusions are annularly arranged at the tail of the tube body 31, so that the anti-drawing force is stronger. When a plurality of the anti-pulling rings are arranged, the protruding rings can be arranged at equal intervals, so that the anti-pulling effect is better and the stress is uniform. It will be appreciated that the number of raised rings is not limiting. The tail refers to the end near the concrete.

In some embodiments, the raised ring is 3.0mm from the trailing end face of the tube 31. That is, when there is one protrusion ring, the protrusion ring is 3.0mm away from the end surface of the tail part of the tube body 31; when the number of the convex rings is multiple, the convex rings which are arranged outwards as required and close to the tail part of the pipe body 31 are 3.0mm away from the end surface of the tail part of the pipe body 31.

In some embodiments, the raised ring is machined from a steel material with a diameter of 3-6 mm.

In some embodiments, the raised ring is welded to the outer wall of the tube 31.

the tube 31 and the projection 32 are first processed separately, and then the projection 32 is welded to the tube 31. The production process of the scheme is simple, and the produced wall-connected anchor has a good anti-pulling effect.

And the second method comprises the following steps: as shown in fig. 6 and 7, the protrusion 32 is in the shape of a multi-lobed horn and is provided at the end of the tube.

In some embodiments, the angle of inclination of the protrusions 32 is 30-75 degrees. The inclined angle of the bulge is preferably 30-75 degrees, and the anti-pulling effect of the wall connecting anchor 3 is good.

In some embodiments, the projections 32 are formed as a single forging.

the protrusions 32 are formed by forging, and the processes of cutting and forging are completed at the same time without additional materials. The scheme has simple production process, and the produced wall-connected anchor has optimal anti-pulling effect.

And the third is that: as shown in fig. 9 and 10, a groove 33 is formed along the outer wall of the tube 31, the groove side wall of the groove 33 is a protrusion 32, and the groove 33 is 3.0mm from the end face of the tail part of the tube 31.

In some embodiments, the groove 32 is an annular shaped groove. Namely, the groove is formed along the circumference of the pipe body to form a ring shape, and the drawing resistance effect is good.

In some embodiments, the annular grooves are 3-5 mm wide and 2mm deep. That is, the projections 32 formed on the side walls of the groove have a height of 2 mm.

In some embodiments, one or more, and in some cases, a plurality of annular grooves are provided, axially distributed along the tubular body 31. When the number of the grooves is one, the ring-shaped groove is formed at the tail part of the tube body 31, so that the drawing resistance is stronger. When a plurality of annular grooves are arranged, the annular grooves can be arranged at equal intervals, so that the stress is uniform, and the anti-pulling effect is better. It is to be understood that the number of ring-shaped grooves is not limited.

and cutting a groove with the width of 3-5 mm and the depth of 2mm on the outer wall of the pipe body 31. The scheme has the advantages of simple production process, no additional material, higher processing efficiency and better anti-drawing effect of the produced wall connecting anchor 3. And the cost is low, and the investment of the material of the convex steel ring can be saved.

In the three schemes described above, the first and second light sources,

in some embodiments, the tube 31 has a length of 30-60 mm, a wall thickness of 3.5-4.5 mm, an outer diameter of 51-53 mm, and an inner diameter of 42-44 mm. The wall connecting anchor 3 is most economical when the length is 30-60 mm, the use function can be met, the length can be lengthened, and the cost is correspondingly increased. The wall connecting anchor 3 is most economical when the outer diameter is 51-53 mm, the use requirement can be met, the cost is lowest, the outer diameter is uneconomical when being larger than 53mm, and the product wall is too thin and easy to deform when being smaller than 51 mm.

In some embodiments, the 1 style tube thread is 25-30 mm deep.

Wall-connected anchor seat

As shown in fig. 10 and 11, the wall anchor base 2 is cast in the building structure with concrete, and is removed after the concrete is solidified, so as to reserve the hole 4. In this way, the inserting hole 4 of the wall connecting horizontal rod 6 is in threaded connection with the wall connecting anchor 3, and the wall connecting horizontal rod 6 can be repeatedly used due to detachable connection, so that the construction cost is greatly reduced.

In some embodiments, the wall anchor base 2 is axially provided with a square socket wrench socket 24, and the square socket wrench socket 24 is positioned at the belly of the wall anchor base 2. The square socket wrench socket 24 is convenient for the wrench to rotate and not slide when the wall-connected anchor seat 2 is detached.

Specifically, the size of the square socket wrench socket 24 is 31mm multiplied by 31mm, and the depth is 30 mm.

In some embodiments, the front end of the square socket wrench inserting hole 24 is a circular hole 25, the diameter of the circular hole 25 is 48mm, and the depth of the circular hole is 27 mm. The front end of the square socket wrench inserting opening 24 is provided with a round hole 25 with a hole diameter larger than that of the socket wrench inserting opening, so that a wrench can be conveniently inserted. When the wall anchor seat 2 is removed, the wrench firstly passes through the circular hole 25 and then is inserted into the square socket wrench inserting hole 24.

In some embodiments, the wall anchor seat 2 is made of plastic and is formed by one-step injection molding. The wall-connected anchor seat 2 made of plastic is not easy to be bonded with concrete, and the circular hole 25 and the square sleeve wrench socket 24 can be slightly deformed and not damaged under the action of external force when being detached, so that the detachment is facilitated.

In some embodiments, insertion section 21 is tubular, with a closed caudal port, 30mm long and 2.0mm wall thickness, and insertion section 21 is provided with a 1 North tubular threaded outer filament, 30mm long. The 1 WD tubular threads on the outer wall of the insertable portion 21 mate with the 1 WD tubular threads on the inner wall of the wall anchor 3 to allow the insertable portion 21 to be threaded into the wall anchor 3. The wall anchor seat 2 is not axially through, and the tail end port of the wall anchor seat is sealed, so that the whole circular hole 25 and the square sleeve wrench socket 24 are prevented from being filled during concrete construction.

In some embodiments, the pipe thread external thread covers the entire insertion section 21.

In some embodiments, the fixed segment 22 is cylindrical, 25mm long, 2.0mm wall thickness, and 54mm outer diameter.

In some embodiments, an intermediate section 23 is disposed between the fixing section 22 and the insertion section 21, and the intermediate section 23 is tapered and is retracted from the fixing section 22 toward the insertion section 21. The middle section 23 is provided with a conical body to facilitate the removal of the wall anchor base 2.

In some embodiments, the intermediate section 23 is 30mm long, 2.0mm thick and 52mm large diameter, with a 50mm small diameter, the intermediate section 23 being smaller in large diameter than the outer diameter of the fixed section 22 and the intermediate section 23 being smaller in small diameter than the outer diameter of the insertion section 21. Big footpath is the one end that is close to canned paragraph 22, and the path is the one end that is close to insertion section 21, so choose for use 50mm for the path, because standard scaffold steel pipe external diameter is 48.3mm, plus-minus tolerance external diameter can not exceed 49mm, so design is 50mm, even wall horizon bar 6 inserts and can not receive the influence, lateral wall concrete can restrain even wall horizon bar 6 and warp when the atress is concentrated to the outrigger simultaneously, ensures the safe handling of pipe thread connection point.

In some embodiments, the intermediate section 23 is smaller than the outer diameter of the tube 31. When the insertion section 21 is inserted into the pipe body 31, the small diameter of the middle section 23 is slightly smaller than the outer diameter of the pipe body 31, so that the outer end face of the pipe body 31 is restrained on concrete, and the tensile strength of the wall-connected anchor 3 is enhanced.

In some embodiments, the intermediate section 23 is a smooth surface. The smooth surface facilitates the removal of the wall anchor seat 2.

The fixed section 22 is provided with a fixed part, the fixed section 22 is fixed with the template 1 through the fixed part, the arrangement scheme of the fixed part is various,

the first method comprises the following steps:

as shown in FIG. 10, a flange 222 is provided at the end of the fixing section 22, and the flange 222 is provided with a screw hole 223 for fixing

The fixed part is a screw hole 223 and a screw 221.

When the wall-connected anchor seat is installed, the template 1 is installed firstly, then the wall-connected anchor seat 2 is tightly attached to the inner side of the template 1, and the wall-connected anchor seat 2 and the template 1 are screwed and fixed through the screw holes 223 by using 4M 4-40 self-tapping screws. The fixing method does not need to damage the template, the template 1 can be repeatedly recycled, the construction cost is reduced, and the template 1 is convenient and quick to detach.

Alternatively, a circular hole having a diameter of 55mm is formed in the form 1, the wall anchor base 2 is inserted into the circular hole, and the wall anchor base 2 is fixed to the outside of the form 1 by a 4M 4-40 self-tapping screw through the screw hole 223 of the flange 222, thereby fixing the wall anchor base to the form. The fixing method is not influenced by the dismantling process of the template 1, the wall-connected anchor seat 2 can be dismantled under the condition that the template 1 is not dismantled, the wall-connected horizontal rod 6 is arranged, the potential safety hazard that the operation surface is higher than an outer frame is eliminated, and the high falling risk of the edge is eliminated. Meanwhile, the fixing method of the damaged wall-connected anchor seat of the template can effectively prevent slurry from permeating into the circular hole 25 and the square sleeve wrench socket 24 of the wall-connected anchor seat 1 during concrete pouring construction.

In some embodiments, the flange 222 is an annular shaped flange. Preferably, the annular flange has a wall thickness of 4.0mm and an outer diameter of 70 mm.

In some embodiments, the screw holes 223 are provided in plurality at equal intervals in the circumferential direction. Preferably, the screw holes 223 are circumferentially equally spaced four by four.

In some embodiments, the annular flange has an end surface with a circumferential anti-slip groove 224 and a screw hole 223 formed therein

In the anti-slip groove 224. That is, the groove is formed along the circumferential direction where the screw hole 223 is located. The anti-slip groove 224 prevents the screw from slipping when the fixed position is changed after the screw hole 223 is damaged in the using process.

In some embodiments, the anti-slip groove 224 is 3.0mm wide and 1.0mm deep, with an outer diameter of 64mm, 1mm below the top of the flange. The anti-slip groove 224 is positioned slightly lower than the plane of the flange 222, and the contact surface with the template 1 is tighter after the fixing screws are tightened, so that the infiltration of slurry into the circular hole 25 and the square sleeve wrench inserting hole 24 of the wall anchor seat during concrete construction is reduced.

In some embodiments, the fixed segment 22 is threaded on the outer surface. The thread of the fixing section 22 is arranged to facilitate the removal of the wall anchor seat 2.

In some embodiments, the form is damaged and fixed to the wall anchor seat, that is, when the wall anchor seat 2 is inserted into the circular hole of the form 1, the fixing section 22 is preferably longer than the thickness of the form 1, the contact surface between the form 1 and the fixing section 22 is a smooth surface, and the non-contact surface is provided with threads, so as to ensure that the concrete on the side wall of the hole is bonded with the threaded surface of the fixing section 22 to form an internal thread, which is beneficial to removing the wall anchor seat 2.

As shown in fig. 1 and 11, the fixing portion is a screw hole 223 and a screw 221, and when the template is fixed without damaging the wall connecting anchor seat, the manufacturing process of the scaffold wall connecting piece is as follows:

(1) screwing the wall connecting anchor 3 into the wall connecting anchor seat 2 and screwing tightly;

(3) after concrete is poured for 12 hours (initial setting), the screws for fixing the wall connecting anchor seat 2 and the template 1 are removed;

(4) after concrete is poured for 24 hours, the wall connecting anchor seat 2 is dismantled, a hole 4 is reserved, and a wall connecting anchor 3 is pre-embedded in the concrete;

(5) a wall-connecting horizontal rod 6 with an outer diameter of 48.3mm, a wall thickness of 3.0-3.6 mm and a 1 ZA pipe thread outer thread at one end is screwed into the wall-connecting anchor 3 and is screwed tightly.

As shown in fig. 11 and 12, the fixing portions are screw holes 223 and screws 221, and when the formwork damages the wall connecting anchor seat, the manufacturing process of the scaffold wall connecting piece is as follows:

(2) firstly, forming a circular hole with the diameter of 55mm on the template 1 at the position where the wall connecting horizontal rod 6 is arranged, then inserting the wall connecting anchor seat 2 into the circular hole, and fixing the wall connecting anchor seat 2 outside the template 1 by using a 4M 4-40 self-tapping screw;

(3) removing screws for fixing the wall anchor seat 2 and the template 1 after concrete pouring for 12 hours (initial setting), removing the wall anchor seat 2 after concrete pouring for 24 hours, and then removing the template 1, or removing the wall anchor seat 2 and the template 1 after concrete pouring for 24 hours, reserving holes 4, and pre-embedding the wall anchor 3 in concrete;

(4) a wall-connecting horizontal rod 6 with an outer diameter of 48.3mm, a wall thickness of 3.0-3.6 mm and a 1 ZA tube thread outer thread at one end is inserted into a hole 4, screwed into the wall-connecting anchor 3 and tightened.

And the second method comprises the following steps:

as shown in fig. 13, the fixing portion 221 includes a flange 222 provided along a circumference of the port of the fixing section 22, a screw thread provided along an outer surface of the fixing section 22, and a nut clamping seat 225, and the nut clamping seat 225 is provided with an internal screw thread to be engaged with the screw thread of the outer surface of the fixing section 22.

When the wall-connecting anchor seat is installed, a circular hole with the diameter of 55mm is formed in the template 1, then the wall-connecting anchor seat 2 is inserted into the circular hole, the nut clamping seat 225 is screwed from inside to outside, the template 1 is fixed between the flange 222 and the nut clamping seat 225, and the wall-connecting anchor seat 2 is fixed. Compared with the first solution requiring screw fixation, this solution does not require self-tapping screws. The screw thread on the fixing section 22 cooperates with the nut holder 225 for tightening the nut holder 225 to fasten the formwork 1. Therefore, under the dual action of the screw thread and the nut clamping seat 225, the wall-connected anchor seat 2 is not easy to damage, deform and shift under the action of external force, and the fixing mode of the wall-connected anchor seat 2 is firmer and more reliable.

In some embodiments, the flange 222 is an annular shaped flange having a wall thickness of 4.0mm and an outer diameter of 70 mm.

In some embodiments, the nut-gripping receptacle 225 is tapered with a head outer diameter greater than a tail outer diameter. The head is the end near the opening of the hole 4. The cone nut clamp seat 225 facilitates removal. When clamping template 1, nut presss from both sides tight seat 225 head and template 1 laminating, and has certain laminating plane between nut presss from both sides tight seat 225 and the template 1, so, just can play the effect of pressing from both sides tight template 1.

In some embodiments, the nut-clamping seat 225 is plastic. The plastic nut clamping base 225 is low in cost, easy to detach and capable of being repeatedly used for times without limitation.

As shown in fig. 13, when the fixing portion is the flange 222, the screw and nut clamp 225, the manufacturing process of the scaffold wall connecting piece is as follows:

(2) firstly, a round hole with the diameter of 55mm is formed in the template 1 at the position where the wall connecting horizontal rod 6 is arranged, then the wall connecting anchor seat 2 is inserted into the round hole, the nut clamping seat 225 is screwed from inside to outside, the template 1 is fixed between the flange 222 and the nut clamping seat 225, and the wall connecting anchor seat 2 is fixed;

(3) after concrete is poured for 24 hours, the wall connecting anchor seat 2 and the template 1 are removed, the nut clamping seat 225 is removed, the hole 4 is reserved, and the wall connecting anchor 3 is embedded in the concrete;

The invention shown and described herein may be practiced in the absence of any element or elements, limitation or limitations, which is specifically disclosed herein. The terms and expressions which have been employed are used as terms of description and not of limitation, and there is no intention in the use of such terms and expressions of excluding any equivalents of the features shown and described or portions thereof, and it is recognized that various modifications are possible within the scope of the invention. It should therefore be understood that although the present invention has been specifically disclosed by various embodiments and optional features, modification and variation of the concepts herein described may be resorted to by those skilled in the art, and that such modifications and variations are considered to be within the scope of this invention as defined by the appended claims.

The contents of the articles, patents, patent applications, and all other documents and electronically available information described or cited herein are hereby incorporated by reference in their entirety to the same extent as if each individual publication was specifically and individually indicated to be incorporated by reference. Applicants reserve the right to incorporate into this application any and all materials and information from any such articles, patents, patent applications, or other documents.

Claims

1. The utility model provides a scaffold frame is wall spare manufacturing system, its characterized in that includes template, even wall anchor seat and even wall anchor utensil, even wall anchor utensil is the body, and the body is equipped with 1 fluorescent tube screw thread internal thread, and even wall anchor seat is including inserting section and fixed section, and the inserting section is equipped with 1 fluorescent tube screw thread external thread anastomotic with the fluorescent tube thread internal thread, and the fixed section is fixed with the template.

2. The scaffolding wall element as claimed in claim 1, wherein the outer wall of the tubular body is provided with projections.

3. The scaffolding wall element as claimed in claim 2, wherein the projection is provided in a ring shape along the circumference of the tubular body, the ring of the projection being spaced 3.0mm from the end face of the rear portion of the tubular body, the ring of the projection being welded to the outer wall of the tubular body.

4. The scaffold wall connecting piece manufacturing system as claimed in claim 2, wherein the protrusion is in a multi-petal horn shape and is arranged at the tail of the tube body, the inclination angle of the protrusion is 30-75 degrees, and the protrusion is formed by one-time forging and pressing.

5. The scaffolding wall element as claimed in claim 2, wherein a groove is formed by notching the outer wall of the tubular body, the side wall of the groove being convex, the groove being 3.0mm from the end face of the rear end of the tubular body.

6. The scaffold wall connecting piece manufacturing system according to any one of claims 1 to 5, wherein the tube body is 30 to 60mm long, 3.5 to 4.5mm thick, 51 to 53mm in outer diameter and 42 to 44mm in inner diameter.

7. The scaffold wall connecting element manufacturing system according to claim 1, wherein the insertion section is tubular, the tail end port is closed, the length is 30mm, and the wall thickness is 2.0 mm; the fixed section is cylindrical, the length is 25mm, the wall thickness is 2.0mm, and the outer diameter is 54 mm; be equipped with the interlude between canned paragraph and the insertion section, the interlude is the toper, contracts to the insertion section direction by the canned paragraph direction, and the interlude is long 30mm, and wall thickness 2.0mm, big footpath 52mm, path 50mm, the interlude major diameter is less than the canned paragraph external diameter, and the interlude path is greater than the insertion section external diameter, and the interlude is smooth surface.

8. The scaffold wall connecting piece manufacturing system as claimed in claim 1, wherein the wall connecting anchor seat is axially provided with a square socket wrench socket, the square socket wrench socket is positioned at the belly of the wall connecting anchor seat, the front end of the square socket wrench socket is a circular hole, the diameter of the circular hole is 48mm, and the depth of the circular hole is 27 mm.

9. The scaffolding wall element manufacturing system as claimed in claim 1, wherein the fixing section is provided with a fixing portion, and the fixing section is fixed to the formwork by the fixing portion.

10. The scaffold wall connecting piece manufacturing system according to claim 9, wherein the end of the fixing section is provided with a flange, the flange is provided with a screw hole, the fixing section is provided with the screw hole and a screw, the flange is ring-shaped, the end surface of the ring-shaped flange is provided with an anti-slip groove along the circumferential direction, and the screw hole is formed in the anti-slip groove; or the fixing part comprises a flange arranged along the port of the fixing section, threads arranged on the outer surface of the fixing section and a nut clamping seat, and the nut clamping seat is provided with internal threads matched with the threads on the outer surface of the fixing section.