CN213359052U - Assembled connecting fastener and steel bar truss type floor support plate - Google Patents
Assembled connecting fastener and steel bar truss type floor support plate Download PDFInfo
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- CN213359052U CN213359052U CN202021856446.1U CN202021856446U CN213359052U CN 213359052 U CN213359052 U CN 213359052U CN 202021856446 U CN202021856446 U CN 202021856446U CN 213359052 U CN213359052 U CN 213359052U
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Abstract
The utility model relates to an assembly type connecting fastener and a steel bar truss type floor support plate, which comprises an upper fastener and a lower fastener, wherein the lower surface of the lower fastener is provided with a connecting hole; the upper surface is provided with a lower accommodating groove; the left wall surface and the right wall surface of the lower fastener are respectively provided with a left clamping groove and a right clamping groove, the front end of the clamping groove is positioned at the rear side of the front end surface of the lower fastener to form a front stopping part at the front end of the clamping groove, and the rear end of the clamping groove is positioned at the front side of the rear end surface of the lower fastener to form a rear stopping part at the rear end of the clamping groove; the upper fastener comprises a top wall, a left side wall and a right side wall which are integrally connected with the top wall, and a left buckle is arranged at the lower end of the left side wall; the lower end of the right side wall is provided with a right buckle; the top wall is provided with an upper accommodating groove for accommodating the lower chord steel bar of the steel bar truss; go up the left buckle of fastener and the left draw-in groove joint adaptation of lower fastener, go up the right buckle of fastener and the right draw-in groove joint adaptation of lower fastener, not only connect the fastener to steel bar truss with the die block be connected convenient operation, avoid influencing steel bar truss's structural strength moreover.
Description
Technical Field
The utility model belongs to the technical field of the component for the building, especially, relate to an assembly type connecting fastener and steel bar truss-like building carrier plate.
Background
A self-supporting detachable steel bar truss floor bearing plate is a building product which welds stressed steel bars in the floor bearing plate into a steel bar truss in a factory and fixedly connects the steel bar truss with a bottom die to form self-supporting stress integration. During construction, the self-supporting detachable steel bar truss floor bearing plate is fixed between the bearing beams and directly poured by concrete, the bottom die bears the gravity of the concrete, and the steel bar truss provides unsupported span and rigidity for the bottom die and the concrete. Compared with the traditional cast-in-place floor slab, the self-supporting detachable steel bar truss floor support plate has the advantages that the construction speed is accelerated, the supporting effect is enhanced, and the bottom die recycling after pouring is realized.
The steel bar truss of the floor support plate in the prior art is connected with the bottom die through the connecting fastener, and simultaneously, the steel bar truss and the concrete gravity are transmitted to the bottom die. But current connection fastener is the integral type structure, sets up the draw-in groove that holds steel bar truss's reinforcing bar on connecting fastener's the lateral wall face, and the cross-section of draw-in groove is the U type, carries out fixed connection with steel bar truss and die block through connecting fastener. During connection, the connecting fastener is required to be fixed on the bottom die, then external force is applied to the steel bar truss, so that the distance between the two lower chord steel bars of the steel bar truss is narrowed, the two lower chord steel bars enter the clamping grooves of the connecting fastener, and the two lower chord steel bars of the steel bar truss are clamped in the clamping grooves by virtue of self resilience force. However, with this connecting fastener, on one hand, it is difficult to apply an external force to the two lower-chord reinforcements of the steel bar truss so as to narrow the distance between the two lower-chord reinforcements; on the other hand, the distance between two lower chord steel bars of the steel bar truss has insufficient resilience force after narrowing, and the structural strength of the steel bar truss is affected.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a fastener is connected to assembled has solved the problem that the connection fastener among the prior art is relatively difficult when being connected steel bar truss and die block and causes the influence to steel bar truss's structural strength. Additionally, the utility model also provides a reinforcing bar truss-like building carrier plate.
In order to achieve the above object, the utility model discloses a technical scheme that assembled connecting fastener adopted is:
an assembly connecting fastener comprising:
lower fastener: the lower surface of the bottom die is provided with a connecting hole for fixedly connecting with the bottom die; the upper surface is provided with a lower accommodating groove for accommodating the lower chord steel bar of the steel bar truss, the front end of the lower accommodating groove is positioned on the front end surface of the lower fastener, and the rear end of the lower accommodating groove is positioned on the rear end surface of the lower fastener so that the lower accommodating groove is a through groove extending in the front-rear direction of the lower fastener;
the left wall surface and the right wall surface of the lower fastener are respectively provided with a left clamping groove and a right clamping groove, the left clamping groove and the right clamping groove are both arranged in an upward extending manner, the left clamping groove forms a left opening on the left wall surface, the right clamping groove forms a right opening on the right wall surface, the front end of the clamping groove is positioned on the rear side of the front end surface of the lower fastener to form a front stopping part at the front end of the clamping groove, and the rear end of the clamping groove is positioned on the front side of the rear end surface of the lower fastener to form a rear stopping part at;
go up the fastener: the upper fastener comprises a top wall, a left side wall and a right side wall which are integrally connected with the top wall, a left buckle is arranged at the lower end of the left side wall, and the left buckle comprises a left flanging which is horizontally arranged at the lower end of the left side wall in a rightward extending mode and a left clamping hook which is arranged at the right end of the left flanging in an upward extending mode; the lower end of the right side wall is provided with a right buckle, and the right buckle comprises a right flanging which is horizontally and leftwards extended on the right side wall and a right clamping hook which is upwards extended at the left end of the right flanging; the top wall is provided with an upper accommodating groove for accommodating the lower chord steel bar of the steel bar truss;
the left buckle of the upper fastener is in clamping fit with the left clamping groove of the lower fastener, and the right buckle of the upper fastener is in clamping fit with the right clamping groove of the lower fastener;
go up the fastener and buckle joint back down, go up holding tank and form the holding tank of fixed steel bar truss lower chord reinforcing bar with holding tank down jointly.
Has the advantages that: the connecting fastener of the utility model adopts an assembly structure, comprises a lower fastener and an upper fastener matched with the lower fastener in a clamping way, and is arranged in such a way that when the steel bar truss is fixed, the lower fastener is fixed on the bottom die, then one of the two lower chord steel bars of the steel bar truss is placed in the lower holding tank of the lower fastener, and then the upper fastener is matched with the lower fastener in a buckling way, so that the steel bar truss can be conveniently and fixedly connected with the bottom die, and the operation is simple and convenient; on the other hand, when the steel bar truss and the bottom die are fixed, external force does not need to be applied to the two lower chord steel bars of the steel bar truss, so that the lower chord steel bars of the steel bar truss can be prevented from deforming at the connecting buckle position, the structural strength of the steel bar truss is prevented from being influenced, and the steel bar truss can meet the design requirement.
Further, the left clamping groove extends downwards to the lower surface of the lower fastener, and the lower end of the left wall surface is located above the lower surface of the lower fastener, so that a left opening is formed between the lower end of the left wall surface and the lower surface of the lower fastener; the lower surface of fastener under the downward extension of right side draw-in groove, the lower extreme of right wall is located the top of the lower surface of fastener down to form the right opening between the lower extreme of right wall and the lower surface of fastener down.
Has the advantages that: form left opening between the lower extreme of left wall and the lower surface of lower fastener, form right opening between the lower extreme of right side wall and the lower surface of lower fastener, press down with lower fastener when carrying out the joint adaptation with last fastener, the lower extreme of going up the fastener just can realize the buckle of going up the fastener and the draw-in groove block of lower fastener up to the handing-over department of lower fastener and die block, and whether need not to consider the degree that goes up the fastener and press down and just in time satisfy the joint adaptation demand between fastener and the lower fastener, it is that the assembly between fastener and the lower fastener is simpler.
A left transition inclined plane which is inclined from top to bottom and from right to left is arranged at the joint of the left wall surface and the upper surface of the lower fastener, and the front end and the rear end of the left transition inclined plane are respectively provided with a limiting part; the right wall of lower fastener is provided with from the top down, the right transition inclined plane that inclines to set up from a left side to the right side with the upper surface junction, and both ends are provided with spacing portion respectively around the right transition inclined plane.
Has the advantages that: go up the fastener and when carrying out the joint adaptation with lower fastener, press down the fastener, go up the left buckle of left side wall lower extreme and the right buckle of right side wall lower extreme of fastener and can slide down along left transition inclined plane and right transition inclined plane respectively to conveniently go up the joint adaptation between fastener and the lower fastener.
The cross-sectional shape of the upper accommodating groove and the cross-sectional shape of the lower accommodating groove are both in a semicircular arc shape.
Has the advantages that: on one hand, the upper accommodating groove and the lower accommodating groove are convenient to process; on the other hand, the lower chord steel bar of the steel bar truss is easy to place when the lower chord steel bar is placed in the lower containing groove of the lower fastener, and the upper containing groove on the upper fastener can be conveniently inserted into the lower chord steel bar of the steel bar truss when the upper fastener is buckled on the lower fastener.
Go up the connecting portion that the slope set up is provided with between cell wall left end and the left side wall of the last holding tank of fastener, go up the connecting portion that the slope set up is provided with between cell wall right-hand member and the right side wall of holding tank.
Has the advantages that: the connecting portion that the slope set up can resist the downward pressing force that produces when last fastener is pressed downwards to can make the structure setting of last fastener more reasonable, increase the durability of last fastener.
The lower extreme of left wall is provided with the chamfer, the lower extreme of right wall is provided with the chamfer.
Has the advantages that: when last fastener pushes down, go up the left buckle of fastener can be convenient get into left draw-in groove in, right buckle can be convenient get into right draw-in groove in.
Two connecting holes are arranged at intervals along the front-back direction.
Has the advantages that: the lower fastener is conveniently fixed on the bottom die.
The connecting hole is a unthreaded hole.
Has the advantages that: the screw may be fixed in the connection hole by a screw self-tightening means.
The utility model discloses a technical scheme that steel bar truss-like building carrier plate adopted is:
reinforcing bar truss-like floor carrier plate includes:
lower fastener: the lower surface of the bottom die is provided with a connecting hole for fixedly connecting with the bottom die; the upper surface is provided with a lower accommodating groove for accommodating the lower chord steel bar of the steel bar truss, the front end of the lower accommodating groove is positioned on the front end surface of the lower fastener, and the rear end of the lower accommodating groove is positioned on the rear end surface of the lower fastener so that the lower accommodating groove is a through groove extending in the front-rear direction of the lower fastener;
the left wall surface and the right wall surface of the lower fastener are respectively provided with a left clamping groove and a right clamping groove, the left clamping groove and the right clamping groove are both arranged in an upward extending manner, the left clamping groove forms a left opening on the left wall surface, the right clamping groove forms a right opening on the right wall surface, the front end of the clamping groove is positioned on the rear side of the front end surface of the lower fastener to form a front stopping part at the front end of the clamping groove, and the rear end of the clamping groove is positioned on the front side of the rear end surface of the lower fastener to form a rear stopping part at;
go up the fastener: the upper fastener comprises a top wall, a left side wall and a right side wall which are integrally connected with the top wall, a left buckle is arranged at the lower end of the left side wall, and the left buckle comprises a left flanging which is horizontally arranged at the lower end of the left side wall in a rightward extending mode and a left clamping hook which is arranged at the right end of the left flanging in an upward extending mode; the lower end of the right side wall is provided with a right buckle, and the right buckle comprises a right flanging which is horizontally and leftwards extended on the right side wall and a right clamping hook which is upwards extended at the left end of the right flanging; the top wall is provided with an upper accommodating groove for accommodating the lower chord steel bar of the steel bar truss;
the left buckle of the upper fastener is in clamping fit with the left clamping groove of the lower fastener, and the right buckle of the upper fastener is in clamping fit with the right clamping groove of the lower fastener;
after the upper fastener and the lower fastener are clamped, the upper accommodating tank and the lower accommodating tank together form an accommodating tank for fixing the lower chord steel bar of the steel bar truss;
bottom die;
a steel bar truss;
the steel bar truss is fixed on the bottom die through two rows of connecting fasteners, and the connecting fasteners are matched with connecting holes of the connecting fasteners to be fixed on the bottom die through connecting pieces.
Has the advantages that: the connecting fastener in the steel bar truss type floor support plate is of an assembled structure and comprises a lower fastener and an upper fastener matched with the lower fastener in a clamping mode, the connecting fastener is arranged in such a way that when the steel bar truss is fixed, the lower fastener is fixed on the bottom die, then one of two lower chord steel bars of the steel bar truss is placed in a lower accommodating groove of the lower fastener, and then the upper fastener is matched with the lower fastener in a buckling mode, so that the steel bar truss can be conveniently and fixedly connected with the bottom die, and the operation is simple and convenient; on the other hand, when the steel bar truss and the bottom die are fixed, external force does not need to be applied to the two lower chord steel bars of the steel bar truss, so that the lower chord steel bars of the steel bar truss are prevented from deforming at the connecting buckle position, the structural strength of the steel bar truss is prevented from being influenced, the steel bar truss can meet the design requirement, and the steel bar truss type floor bearing plate can meet the design requirement.
Drawings
Fig. 1 is a schematic structural view of a steel bar truss type floor deck of the present invention;
fig. 2 is a cross-sectional view of the connecting fastener and the steel bar truss in the use state of the present invention;
FIG. 3 is a schematic view of the assembly of the upper and lower fastening members of the assembled fastening device of the present invention;
FIG. 4 is a schematic view of a lower fastening member of the assembled fastening member of the present invention;
FIG. 5 is a bottom view of a lower clip of the assembled fastening clip of FIG. 4;
FIG. 6 is a side view of an upper fastening member of the middle assembly type fastening member of the present invention;
fig. 7 is a side view of a second embodiment of an upper clip of a fabricated connecting clip.
Reference numerals: 1-a steel bar truss; 2-bottom die; 3-connecting fasteners; 4-lower chord steel bars; 5-fastening the upper fastener; 6-lower fastener; 7-a screw; 8-upper accommodating groove; 9-lower holding tank; 10-connecting holes; 11-left buckle; 12-right buckle; 13-left card slot; 14-right card slot; 15-left transition ramp; 16-left opening; 17-a front stop; 18-a backstop; 19-left wall; 20-right wall surface; 21-lower surface; 22-left side wall; 23-right side wall; 24-left flanging; 25-right flanging; 26-left hook; 27-right hook; 28-upper accommodating groove; 29-left side wall; 30-right side wall.
Detailed Description
The following describes in detail a specific embodiment of a steel bar truss type floor deck according to the present invention with reference to the accompanying drawings and embodiments:
as shown in fig. 1, the steel bar truss type floor deck includes a bottom mold 2, a steel bar truss 1, and a connecting fastener 3 connecting the bottom mold 2 and the steel truss. The steel bar truss 1 comprises two lower chord steel bars 4, a connecting fastener 3 is fixedly arranged on each lower chord steel bar 4, the connecting fasteners 3 are arranged at intervals in the extending direction of the lower chord steel bars 4, and in the embodiment, the distance between every two adjacent connecting fasteners 3 is 20 centimeters on the same lower chord steel bar 4. The connecting fastener 3 is fixedly connected with the bottom die 2 through a connecting piece, in this embodiment, the connecting piece is a screw 7. The connecting fastener 3 is provided with a connecting hole 10 matched with the screw 7. The screw 7 passes through the bottom die 2 and is fixedly connected with a connecting hole 10 on the connecting fastener 3, in this embodiment, the connecting hole 10 is a unthreaded hole.
As shown in fig. 2 and 3, the connecting fastener 3 is an assembly structure, and includes an upper fastener 5 and a lower fastener 6, wherein the upper fastener 5 is provided with a buckle, and the lower fastener 6 is provided with a slot adapted to the buckle.
Specifically, the lower fastening member 6 is structured as shown in fig. 4 and 5, the lower fastening member 6 extends in the front-rear direction, the lower surface 21 of the lower fastening member 6 is provided with two connecting holes 10 fixedly connected to the bottom mold 2, and in this embodiment, the two connecting holes 10 are arranged at intervals in the front-rear direction. Lower holding tank 9 that extends along the fore-and-aft direction is seted up to lower fastener 6's upper surface, and lower holding tank 9 is used for holding steel bar truss 1's last quarter reinforcing bar 4, and lower holding tank 9's front end is located the preceding terminal surface of lower fastener 6, and lower holding tank 9's rear end is located the rear end of lower fastener 6 to make lower holding tank 9 be the logical groove that extends the setting at fastener 6 fore-and-aft direction down.
The left wall surface 19 and the right wall surface 20 of the lower fastener 6 are respectively provided with a left clamping groove 13 and a right clamping groove 14, the left clamping groove 13 and the right clamping groove 14 are both arranged in an upward extending manner, the left clamping groove 13 forms a left opening 16 on the left wall surface 19, the right clamping groove 14 forms a right opening on the right wall surface 20, the front end of the clamping groove is positioned at the rear side of the front end surface of the lower fastener 6 so as to form a front stopping part 17 at the front end of the clamping groove, and the rear end of the clamping groove is positioned at the front side of the rear end surface of the lower fastener 6 so as to form a rear stopping part 18 at.
In this embodiment, the lower end of the left engaging groove 13 extends to the lower surface 21 of the lower fastening member 6, and the lower end of the left wall surface 19 is located above the lower surface 21 of the lower fastening member 6, so as to form a left opening 16 between the lower end of the left wall surface 19 and the lower surface 21 of the lower fastening member 6; the lower end of the right engaging groove 14 extends downward to the lower surface 21 of the lower fastening member 6, and the lower end of the right wall surface 20 is located above the lower surface 21 of the lower fastening member 6, so as to form a right opening between the lower end of the right wall surface 20 and the lower surface 21 of the lower fastening member 6.
A left transition inclined plane 15 which is inclined from top to bottom and from right to left is arranged at the joint of the left side surface and the upper surface of the lower fastener 6, and the front end and the rear end of the left transition inclined plane 15 are respectively provided with a limiting part; the right wall surface 20 of the lower fastener 6 is provided with a right transition inclined surface which is inclined from top to bottom and from left to right at the joint with the upper surface, and the front end and the rear end of the right transition inclined surface are respectively provided with a limiting part.
Furthermore, the lower end of the left wall surface 19 of the lower clip 6 is chamfered, and the lower end of the right wall surface 20 is also chamfered.
As shown in fig. 2, 3, and 6, the upper hook 5 extends in the front-rear direction, the upper hook 5 has an inverted U-shaped cross section, and the length of the upper hook 5 in the front-rear direction is shorter than the length of the lower hook 6 in the front-rear direction. The upper fastener 5 comprises a top wall, a left side wall 22 and a right side wall 23 which are integrally connected with the top wall, the lower end of the left side wall 22 is provided with a left buckle 11, the left buckle 11 comprises a left turned edge 24 which is horizontally arranged at the lower end of the left side wall 22 in a rightward extending mode, and a left clamping hook 26 which is arranged at the right end of the left turned edge 24 in an upward extending mode; the lower end of the right side wall 23 is provided with a right buckle 12, and the right buckle 12 comprises a right flanging 25 horizontally extending leftwards of the right side wall 23 and a right clamping hook 27 extending upwards from the left end of the right flanging 25; and an upper accommodating groove 8 for accommodating the lower chord steel bar 4 of the steel bar truss 1 is arranged on the top wall of the upper fastener 5. The left end of the groove wall of the upper accommodating groove 8 of the upper fastener 5 is obliquely arranged with the left side wall 22, and the right end of the groove wall of the upper accommodating groove 8 is obliquely arranged with the right side wall 23.
Go up fastener 5's left buckle 11 and lower fastener 6's left draw-in groove 13 joint adaptation, go up fastener 5's right buckle 12 and lower fastener 6's right draw-in groove 14 joint adaptation. After last fastener 5 and 6 joint backs of lower fastener, go up holding tank 8 and hold tank 9 down and form the holding tank of fixed steel bar truss 1 lower chord reinforcing bar 4 jointly, in this embodiment, the cross-sectional shape of going up holding tank 8 and the cross-sectional shape of holding tank 9 down are half circular arc shape.
In this embodiment, the assembly type connecting fastener 3 is made of plastic, and in other embodiments, the assembly type connecting fastener may also be made of metal.
The utility model discloses a steel bar truss formula building carrier plate when installation, earlier through 7 will be connected the lower fastener 6 of fastener 3 fixed with 2 fixed connection of die block, every steel bar truss 1 corresponds two lines of connection fastener 3, then put into the lower holding tank 9 of the lower fastener 6 of connection fastener 3 with two lower chord steel bars 4 correspondences of steel bar truss 1, then will go up fastener 5 and push down, it is spacing on the front and back direction to left buckle respectively to make the left buckle 11 card of the left side wall 22 lower extreme of going up fastener 5 go into the left draw-in groove 13 of lower fastener 6, it is spacing on the front and back direction to make the right buckle 12 card of the right side wall 23 lower extreme of going up fastener 5 go into the right draw-in groove 14 of lower fastener 6, the preceding arrestment portion and the backstop portion of left draw-in groove 13 are spacing on the front and back direction to left buckle respectively, the preceding arrestment portion and the backstop portion of right side draw-. After the upper fastener 5 is clamped with the lower fastener 6, the lower chord steel bar 4 of the steel bar truss 1 is fixed by the accommodating groove formed by the upper accommodating groove 8 and the lower accommodating groove 9 together, the lower chord steel bar can be rubbed in the front-back direction by the accommodating groove at the moment, and the connecting fastener is prevented from moving relative to the lower chord steel bar in the front-back direction. And sequentially fixing each steel bar truss 1 on the bottom die 2, thereby realizing the manufacture of the detachable steel bar truss floor bearing plate. Then hoist the steel bar truss floor carrier plate of completion to the construction area and carry out concrete placement, pour and accomplish and after concrete solidifies to design strength, take out die block 2 screw 7 and demolish die block 2, screw 7 and die block 2 can be used to the use of the detachable steel bar truss floor carrier plate of the equal specification in later stage.
The utility model discloses a connect fastener in steel bar truss-like building carrier plate adopts assembled structure, including lower fastener 6 and with the last fastener 5 of lower fastener 6 joint adaptation, connect fastener 3 and set up like this, when carrying out steel bar truss 1's fixed, fix lower fastener 6 on die block 2 first, then place one of two lower chord reinforcing bars 4 of steel bar truss 1 in the lower holding tank 9 of lower fastener 6, then with last fastener 5 and 6 buckle adaptations of lower fastener, thereby can be convenient carry out fixed connection with steel bar truss 1 and die block 2, easy operation is convenient; on the other hand, when the steel bar truss 1 and the bottom die 2 are fixed, external force does not need to be applied to the two lower chord steel bars 4 of the steel bar truss 1, so that the lower chord steel bars 4 of the steel bar truss 1 can be prevented from deforming at the connecting buckle position, the structural strength of the steel bar truss 1 is prevented from being influenced, the steel bar truss 1 can meet the design requirement, and the steel bar truss type floor support plate can meet the design requirement.
As shown in fig. 7, the second embodiment of the upper fastener is different from the first embodiment in that a horizontally disposed connecting portion may be further disposed between the left end of the groove wall of the upper receiving groove 28 and the left side wall 29 of the upper fastener, and a horizontally disposed connecting portion is disposed between the right end of the groove wall of the upper receiving groove 28 and the right side wall 30.
In the above embodiment, the left clamping groove extends downward to the lower surface of the lower fastener, and the lower end of the left wall surface is located above the lower surface of the lower fastener, so as to form a left opening between the lower end of the left wall surface and the lower surface of the lower fastener; the right clamping groove extends downwards to the lower surface of the lower fastener, and the lower end of the right wall surface is located above the lower surface of the lower fastener, so that a right opening is formed between the lower end of the right wall surface and the lower surface of the lower fastener; in other embodiments, the left slot may be formed in the middle of the left wall surface in the vertical direction, and the right slot may be formed in the middle of the right wall surface in the vertical direction, where the left opening is located in the middle of the left wall surface in the vertical direction, and the right opening is located in the middle of the right wall surface in the vertical direction.
In the above embodiment, the joint of the left wall surface and the upper surface of the lower fastener is provided with a left transition inclined surface which is inclined from top to bottom and from right to left, and the front end and the rear end of the left transition inclined surface are respectively provided with a limiting part; a right transition inclined plane which is obliquely arranged from top to bottom and from left to right is arranged at the joint of the right wall surface and the upper surface of the lower fastener, and the front end and the rear end of the right transition inclined plane are respectively provided with a limiting part; in other embodiments, the left transition inclined plane may not be provided, and the right transition inclined plane may not be provided; or the front end and the rear end of the left transition inclined plane can be provided with no limiting part, and the front end and the rear end of the right transition inclined plane can be provided with no limiting part.
In the above embodiment, the cross-sectional shape of the upper receiving groove and the cross-sectional shape of the lower receiving groove are both semi-circular arcs; in other embodiments, the cross-sectional shape of the upper receiving groove is a major arc, and the cross-sectional shape of the lower receiving groove has a minor arc; or the cross section of the upper accommodating groove is in a minor arc shape, and the cross section of the lower accommodating groove is in a major arc shape.
In the above embodiment, the lower end of the left wall surface is provided with a chamfer, and the lower end of the right wall surface is provided with a chamfer; in other embodiments, the chamfer may not be provided.
In the above embodiment, two connecting holes are arranged at intervals along the front-rear direction; in other embodiments, one connecting hole can be arranged.
In the above embodiment, the connection hole is a light hole; in other embodiments, the connecting hole can also be a threaded hole.
The utility model discloses a fastener's specific embodiment is connected to assembled, fastener's structure is connected to assembled is the same with the structure of the assembled fastener of being connected in the foretell steel bar truss-like building carrier plate, no longer gives unnecessary details here.
Claims (9)
1. An assembly type connecting fastener, characterized by comprising:
lower fastener: the lower surface of the bottom die is provided with a connecting hole for fixedly connecting with the bottom die; the upper surface is provided with a lower accommodating groove for accommodating the lower chord steel bar of the steel bar truss, the front end of the lower accommodating groove is positioned on the front end surface of the lower fastener, and the rear end of the lower accommodating groove is positioned on the rear end surface of the lower fastener so that the lower accommodating groove is a through groove extending in the front-rear direction of the lower fastener;
the left wall surface and the right wall surface of the lower fastener are respectively provided with a left clamping groove and a right clamping groove, the left clamping groove and the right clamping groove are both arranged in an upward extending manner, the left clamping groove forms a left opening on the left wall surface, the right clamping groove forms a right opening on the right wall surface, the front end of the clamping groove is positioned on the rear side of the front end surface of the lower fastener to form a front stopping part at the front end of the clamping groove, and the rear end of the clamping groove is positioned on the front side of the rear end surface of the lower fastener to form a rear stopping part at;
go up the fastener: the upper fastener comprises a top wall, a left side wall and a right side wall which are integrally connected with the top wall, a left buckle is arranged at the lower end of the left side wall, and the left buckle comprises a left flanging which is horizontally arranged at the lower end of the left side wall in a rightward extending mode and a left clamping hook which is arranged at the right end of the left flanging in an upward extending mode; the lower end of the right side wall is provided with a right buckle, and the right buckle comprises a right flanging which is horizontally and leftwards extended on the right side wall and a right clamping hook which is upwards extended at the left end of the right flanging; the top wall is provided with an upper accommodating groove for accommodating the lower chord steel bar of the steel bar truss;
the left buckle of the upper fastener is in clamping fit with the left clamping groove of the lower fastener, and the right buckle of the upper fastener is in clamping fit with the right clamping groove of the lower fastener;
go up the fastener and buckle joint back down, go up holding tank and form the holding tank of fixed steel bar truss lower chord reinforcing bar with holding tank down jointly.
2. The assembly type connecting fastener of claim 1, wherein the left engaging groove extends downward to a lower surface of the lower fastener, and a lower end of the left wall surface is located above the lower surface of the lower fastener to form a left opening between the lower end of the left wall surface and the lower surface of the lower fastener; the lower surface of fastener under the downward extension of right side draw-in groove, the lower extreme of right wall is located the top of the lower surface of fastener down to form the right opening between the lower extreme of right wall and the lower surface of fastener down.
3. The assembly type connecting fastener as claimed in claim 1 or 2, wherein a left transition inclined surface is provided at a junction of the left wall surface and the upper surface of the lower fastener, the left transition inclined surface being inclined from top to bottom and from right to left, and the front and rear ends of the left transition inclined surface are respectively provided with a limiting portion; the right wall of lower fastener is provided with from the top down, the right transition inclined plane that inclines to set up from a left side to the right side with the upper surface junction, and both ends are provided with spacing portion respectively around the right transition inclined plane.
4. An assembly type connecting fastener as claimed in claim 1 or 2, wherein the cross-sectional shape of the upper receiving groove and the cross-sectional shape of the lower receiving groove are both semicircular arc-shaped.
5. The connecting buckle as claimed in claim 1 or 2, wherein an inclined connecting portion is provided between the left end and the left side wall of the upper receiving groove of the upper buckle, and an inclined connecting portion is provided between the right end and the right side wall of the upper receiving groove.
6. An assembly type connecting fastener according to claim 1 or 2, wherein the lower end of the left wall surface is provided with a chamfer and the lower end of the right wall surface is provided with a chamfer.
7. An assembly type connecting buckle according to claim 1 or 2, wherein two connecting holes are provided at a distance in the front-rear direction.
8. An assembly attachment fastener as claimed in claim 1 or claim 2 wherein the attachment aperture is a light aperture.
9. Reinforcing bar truss-like building carrier plate, characterized by includes:
a fabricated connecting fastener of any one of claims 1-8;
bottom die;
a steel bar truss;
the steel bar truss is fixed on the bottom die through two rows of connecting fasteners, and the connecting fasteners are matched with connecting holes of the connecting fasteners to be fixed on the bottom die through connecting pieces.
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| CN202021856446.1U CN213359052U (en) | 2020-08-31 | 2020-08-31 | Assembled connecting fastener and steel bar truss type floor support plate |
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| CN202021856446.1U CN213359052U (en) | 2020-08-31 | 2020-08-31 | Assembled connecting fastener and steel bar truss type floor support plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115139405A (en) * | 2022-08-04 | 2022-10-04 | 河南锐凯德建材有限公司 | Connecting fastener and assembling tool for steel bar truss floor bearing plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115139405A (en) * | 2022-08-04 | 2022-10-04 | 河南锐凯德建材有限公司 | Connecting fastener and assembling tool for steel bar truss floor bearing plate |
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