CN2229955Y

CN2229955Y - Device for fastening shuttering

Info

Publication number: CN2229955Y
Application number: CN 95243921
Authority: CN
Inventors: 冯一鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-05
Filing date: 1995-05-05
Publication date: 1996-06-26
Anticipated expiration: 2005-05-05

Abstract

The utility model provides an improved shuttering fastening device. The utility model is characterized in that a sleeve barrel which can clamp cap nuts locks into a screw whose anterior part is provided with a concave bit, an electric concave clamping head clamps a round bar covering on tail. The utility model makes the concave bit on the screw cut the shuttering by the electric concave and take out the sleeve barrel, whereas the screw is left on the shuttering and a baffle is sheathed into the screw and locked firmly by lock nuts. When in cementation working, the utility model is not loose, which guarantees the quality of cementation. After the coagulation of cementation, demolishing the cap nuts, the baffle and the shuttering, subtracting the screw out the ektexine of cement, the utility model can once finish the working of setting the borehole of the shuttering and the screw, which reduces procedure and raises efficiency.

Description

The template fastener

The utility model relates to connector or other annexes that a kind of template is used, the tying means that particularly a kind of template is used.

Template fastener commonly used at present, its making and user mode are as shown in Figure 1, 2, 3, template A bores two hole B of system with the electric drill of clamping long drill bit earlier, screw rod C passes from two hole B, overlap overhead gage C1 and nut C2 respectively at screw rod C two ends again, screw the purpose that nut C2 reaches formboard fastening, this template fastener because vibration easily makes nut loosening, causes the template both sides to heave in filling process.After the grouting, nut and baffle plate are taken off, template is pulled down from hole B, as shown in Figure 3, will be exposed to the outer screw rod of cement wall D again and wipe out along plane A1.Said structure needs earlier template to be holed before formboard fastening, and is very long as the distance between template and the template, just needs special long drill bit boring, and two stomidiums are difficult when screw rod penetrates template simultaneously aims at, and increases the difficulty of formboard fastening operation.

The purpose of this utility model is that a kind of improved template fastener will be provided, and it is holed template and the screw rod operation is set and once finishes.

The utility model is achieved in that at screw front end establishes the drill bit that has fin, and drill bit is in order to hole on template, and fin then has the function of reaming, wears nut on screw rod, and nut is embedded in the screw cap hole of sleeve, and the round bar of sleeve is by the clamping of electric drill chuck; Establish swash plate, tapered barrel, spring and the circlip of buckle on the sleeve, screw rod can be handled swash plate and then can be fastened or decontrol nut with the sleeve rotary drilling under nut drives; Baffle plate is inserted at the screw rod two ends of taking out sleeve and nut after template boring is finished respectively, the nut screw-in is against baffle plate, again combination nut is screwed in screw rod, combination nut and nut are equipped with locking measure, and compress the baffle plate formation template fastener in template two outsides respectively.

The template fastener that the utility model proposes, under electric drill drives, through sleeve drill bit being implemented on the template holes, after this screw rod is finished bore operation, no longer take out, constitute the standing screw of template fastener thereupon, template boring and the operation that screw rod is set are once finished, obviously increase work efficiency, nut and baffle plate all are provided with locking measure simultaneously, prevent the operation quality because of the loosening influence grouting of nut.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is a conventional template fastener boring schematic diagram.

Fig. 2 is that the conventional template fastener is installed the post-grouting schematic diagram.

Fig. 3 is that the outer screw rod of traditional cement wall is wiped out the back schematic diagram along the plane.

Fig. 4 surveys view according to the template fastener axle that the utility model proposes.

Fig. 5 is that Fig. 4 structure vertical profile is looked schematic diagram.

Fig. 6 is that Fig. 4 structure is installed the post-grouting schematic diagram.

Fig. 7 is that the screw rod of Fig. 4 structure is wiped out the back schematic diagram along cement wall plane.

Fig. 8 is nut and a baffle plate anti-loose structure schematic diagram in Fig. 4 structure.

Fig. 9 is the A-A sectional view of Fig. 8.

With reference to Fig. 4,5, the template fastener is by combination nut 10, screw rod 11, nut 12 and sleeve 13 are formed, sleeve 13 is a hexagonal column in the hollow, the round bar 131 of sleeve 13 is by 3 clampings of electric drill chuck, nut 12 places screw cap hole 130, thread segment 113 screw-in nuts 12 when screw rod 11, and support when terminating in the bottom 136 of screw cap hole 130, nut 12 just struts forward, till being lived by the fastener of the swash plate 132 of buckle, establish a tapered barrel 137 at the rear of both sides swash plate 132, a spring 138 is established at tapered barrel 137 rears, spring 138 is propped up by the set circlip 139 of sleeve 13 afterbodys, the front end that forms tapered barrel 137 props up swash plate 132 tail ends, thereby the fastener that reaches swash plate 132 is lived nut 12, screw rod 11 can under driving, be rotated by electric drill, swash plate 132 is by pin 135 supportings that seal on two parallel-plates 133, and the spring 134 that mat is located at swash plate 132 belows can rotate swash plate 132 around pin 135, thereby can fasten or decontrol nut 12, realize screw rod 11 boring functions during button bit, then can take out sleeve 13 during relieving; Screw rod 11 front ends are the drill bit 111 that has fin 110, fin 110 side's of being stripe shapes and diagonal angle laying mutually, the hook clamping nut 12 of swash plate 132, the rotation under electric drill drives of the drill bit 111 of screw rod 11, drill bit 111 drilling templates 2, fin 110 enlarges the hole, make things convenient for the thread segment 113 of screw rod 13 to pass, drill bit 111 diameters are more smaller than the core diameter of thread of the thread segment 113 at rear, establish the cylinder 112 of an external diameter less than drill bit 111 diameters between the two, the wood chip of drill bit 111 cutting is discharged by the chip area gap that the cylinder 112 of its back constitutes; After boring is finished, pressing spring 134 under swash plate 132 rear ends, swash plate rotates around pin 135, the hook of swash plate 132 is decontroled nut 12, along with sleeve 13 and nut 12 are taken out, baffle plate 4 is inserted at two ends at screw rod 11 respectively, again nut 12 is screwed in an end of screw rod 11 and is close proximity to baffle plate 4, inboard two squares of combination nut 10 are the thread segment 113 that the groove of laying at the diagonal angle 100 is aimed at corresponding fin 110 on the drill bits 111 and screwed in screw rod 11, as shown in Figure 6, combination nut 10 and nut 12 with end face that baffle plate 4 contacts on be equipped with locating piece 120, locating piece 120 is chimeric as Fig. 8 with the detent 40 on baffle plate and the baffle plate 4, shown in 9, the vibration that produces when preventing grouting operation gets loose nut.

With reference to Fig. 6, nut 12 and combination nut 10 on the thread segment 113 of screw rod 11 from inward at both ends clamping baffle plate 4, and by baffle plate 4 clamping templates 2, constitute a complete template fastener, behind the template 2 mounting template fasteners, the mud of penetration concrete 5, after concrete 5 solidifies, remove combination nut 10, nut 12, baffle plate 4 and template 2, the screw rod 11 that is exposed to concrete 5 external surfaces 6 is wiped out and is got final product surfacewise, as shown in Figure 7.

Claims

1, a kind of template fastener includes nut (12), screw rod (11) and baffle plate (4), it is characterized in that:

A, screw rod (11) front end are established the drill bit (111) that has fin (110), and screw rod (11) wears nut (12), and nut (12) is embedded in the screw cap hole (130) of sleeve (13), and the round bar (131) of sleeve (13) is by electric drill chuck (3) clamping;

B, be inserted in baffle plate (4) respectively at screw rod (11) two ends that back taking-up sleeve (13) and nut (12) are finished in template boring, nut (12) screw-in is against baffle plate (4), again combination nut (10) is screwed in the thread segment (113) of screw rod (13), compress the baffle plate (4) in template (2) two outsides by combination nut (10) and nut (12) respectively.

2, template fastener according to claim 1 is characterized in that there are two square grooves (100) combination nut (10) inboard, and is the diagonal angle and lays, combination nut (10) with end face that baffle plate (4) contacts on establish locating piece (120).

3, template fastener according to claim 1 and 2, it is characterized in that fin (110) side of the being stripe shape of screw rod (11) front end and diagonal angle laying mutually, corresponding the setting of groove (100) of fin (110) and combination nut (10), drill bit (111) diameter is more smaller than the core diameter of thread of the thread segment (113) of the screw rod (11) at rear, and the cylinder (112) of an external diameter less than drill bit (111) external diameter arranged between the two.

4, according to claim 1 or 2 or 3 described template fasteners, it is characterized in that sleeve (13) is hexagonal column in the hollow, establish the swash plate (132) that band colludes on the sleeve (13), swash plate (132) is by pin (135) supporting that seals on two parallel-plates (133), spring (134) is established in swash plate (132) below, a tapered barrel (137) is established at the rear of swash plate (132), and a spring (138) is established at tapered barrel (137) rear, and spring (138) is propped up by the set circlip of sleeve (13) afterbody (139).

5, template fastener according to claim 1 is characterized in that baffle plate (4) establishes the detent (40) corresponding with locating piece (120) with combination nut (10) and contacting of nut (12) on the end face.