CN201074403Y - Plugging head - Google Patents

Abstract

Provided is a plugging head, wherein the plugging head is a hollow cone, when using, the plugging head of the utility model is sleeved on the end portion of a split bolt, the end portion of a bolt hole is formed to a cone-shaped internal dent after the mold removal, and the cone-shaped internal dent enables the plugging depth to be easily controlled. On the other hand, the angles around the hole are obtuse angles, which enable the concrete around the internal dent to be more easily compacted, and the corner of the finished product is not easy to be dropped, thereby the plugged hole is stronger, and the utility model has a very high popularization and application value.

Description

Block head

Technical field

The utility model belongs to building field, relates to a kind of split bolt hole block head especially.

Background technology

Clear-water concrete is not because its one-time cast-forming is done any outer decoration, and therefore the natural surface effect that directly adopts cast-in-situ concrete is different from ordinary concrete as facing, and surfacing is smooth, and color and luster is even, and corner angle are clearly demarcated, seem very natural.

At present, in the dry concrete wall construction, usually adopt split bolt to come formboard fastening, bolt is an elongated bolt, and the surface of wall stays bolt hole one by one after the form removal, thereby need carry out shutoff to the split bolt hole, but owing to do not plaster, do not have overburden after the shutoff of split bolt hole, the color of shutoff and former concrete color are certain to that aberration is arranged, look far away on the whole body of wall one by one bag, the utmost point is not attractive in appearance.

In order to make the body of wall after the shutoff attractive in appearance, common shutoff part of exterior wall bolt hole, adopt special instrument to reserve for the part that does not need shutoff, form preformed hole after the form removal, adopting maximum is the cylindrical shape plug, promptly at the two or a headgear cylindrical shape plug of split bolt, the plug part does not need shutoff after having torn mould open, but there are the following problems in this kind shutoff: 1, the degree of depth is not easy control, reason is that the preformed hole that the cylindrical shape plug forms is cylindrical, and is as broad as long with the hole that bolt forms, thereby the bad grasp of degree of depth during shutoff, thereby make shallow the differing of hole depth after the shutoff, influence attractive in appearance; 2, after the form removal, the body of wall around the preformed hole is at right angles broken easily, on the one hand, and when pull bolt or shutoff, be easy to clashing and breaking hole body of wall all around, on the other hand, when fluid concrete in template, the place, right angle is not easy to pour into a mould closely knit, is easy to occur burning into sand, influences attractive in appearance.

Based on this, how to solve the problem of above-mentioned existence, then be the design problem that the utility model faced.

Summary of the invention

Goal of the invention of the present utility model is to provide a kind of and makes that the bolt hole shutoff degree of depth is easy to control, make more closely knit block head around the preformed hole after the shutoff.

For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:

A kind of block head is characterized in that: described block head is the Rotary-table of hollow.

Further, the angle of the conical surface of described round platform and bottom surface (α) is 30 °-60 °.

Further, described angle (α) is preferably 45 °.

Further, the cavity of described Rotary-table is a straight cylinder shape.

Again further, described block head adopts rigid plastics to make.

Compared with prior art, advantage of the present utility model and good effect are as follows: during construction, the end of split bolt puts the utility model block head, after the form removal preformed hole be shaped as the truncated cone-shaped indent, the indent of truncated cone-shaped makes the degree of depth of shutoff easy to control; Angle θ around the preformed hole is the obtuse angle on the other hand, makes that the circumferential concrete of indent is easier to be closely knit, and finished product is difficult for arrisdefect, makes the hole after the shutoff more solid; The utility model adopts rigid plastics on the one hand again, and is cheap, easy to process, and very high application value is arranged.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the longitudinal sectional view of Fig. 1;

Fig. 3 is the longitudinal sectional view of the utility model under user mode.

Wherein, 1, block head; 1-1, cavity; 2, split bolt; 3, sleeve pipe; 4, template; 5 bodies of wall.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Embodiment one, as shown in Figure 1-Figure 3, the utility model block head 1 is the truncated cone-shaped of hollow, cavity 1-1 is straight cylinder shape, certainly cavity also can be square or other shapes, and the angle α of the conical surface of round platform and bottom surface is 45 °, can certainly make other angles, why being taken as 45 ° is because this angle is controlled easily, and the recess better appearance that forms after the form removal.

The upper bottom surface diameter D of present embodiment block head 1 gets 47mm, and the bottom surface diameter d is got 37mm, and height H is got 10mm, and the diameter of cavity 1-1 straight cylinder is got 30mm.

In order to reduce production costs convenient processing, the block head 1 employing rigid plastics in the present embodiment, present embodiment employing polytetrafluoroethylene (PTFE).

On split bolt 2, overlap hard PVC sleeve pipe 3 during use, the end puts block head 1, and (split bolt can not overlap near interior wall one end, but must overlap near the exterior wall end, split bolt 2 only provides part-structure schematic diagram in the body of wall, and other parts are not shown, and those skilled in the art are familiar with its using method fully), fix template 4 then, Deng after the form removal split bolt 2 and block head 1 are extracted out, sleeve pipe 3 is stayed wherein, and block head 1 can use with split bolt 2 turnovers.Like this, the bolt hole two ends form the truncated cone-shaped indent, after the microdilatancy dry cement mortar filling with special preparation, get final product with the capping tools tamping again.Shutoff to bolt hole can be adopted general instrument, also can make supporting with it special capping tools in conjunction with the shape of block head, and is more convenient to use like that.

The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.

Claims (5)

1. block head, it is characterized in that: described block head is the Rotary-table of hollow.

2. block head according to claim 1 is characterized in that: the conical surface of described round platform and the angle of bottom surface (α) are 30 °-60 °.

3. block head according to claim 2 is characterized in that: described angle (α) is preferably 45 °.

4. block head according to claim 3 is characterized in that: the cavity of described Rotary-table is a straight cylinder shape.

5. according to claim 1,2,3 or 4 described block heads, it is characterized in that: described block head adopts rigid plastics to make.

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