CN213418494U

CN213418494U - Template fastener

Info

Publication number: CN213418494U
Application number: CN202021731706.2U
Authority: CN
Inventors: 董春发
Original assignee: Jiangxi Yijie Building Materials Co ltd
Current assignee: Jiangxi Yijie Building Materials Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-06-11
Anticipated expiration: 2030-08-19

Abstract

The utility model provides a template fastener, which comprises a screw rod, a fastening piece and a nut, wherein the fastening piece comprises a first horizontal plate, a vertical plate and a second horizontal plate, the first horizontal plate is connected with the second horizontal plate through the vertical plate, a hole is arranged on the vertical plate, and a certain distance is arranged between the edge of the hole and the first horizontal plate; the clamping piece is sleeved on the screw rod through the hole, and the nut is connected with the screw rod through threads. When the screw rod is used, the screw rod penetrates through the template, the strip is arranged on the outer side of the template, the clamping piece is used for clamping the strip, and the clamping piece, the strip and the template are fastened through the nut. The template fastener has a simple structure, is convenient to install, and can effectively fasten the template; the first horizontal plate of the retainer can press the strip, and the first horizontal plate and the strip are in surface contact, so that the stability can be improved.

Description

Template fastener

Technical Field

The utility model relates to a building tool, concretely relates to template fastener.

Background

Before pouring the building wall, the pillar or the beam, it is necessary to provide a formwork according to the shape of the building wall, the pillar or the beam, and fasten the formwork by a fastener.

The conventional fastener is a screw (e.g., a split screw), which penetrates through the formwork and is engaged with the screw by using a steel pipe, a chevron-shaped clip, a nut, etc. on the outer side of the formwork to fasten the formwork. The fastening mode has the defects of more used parts and inconvenient installation, thereby resulting in labor consumption and high construction cost.

Disclosure of Invention

An object of the utility model is to provide a template fastener, this template fastener simple structure, convenient to use, stability is good moreover.

The utility model provides a template fastener, including screw rod, chucking spare and nut, wherein, the chucking spare includes first horizontal plate, vertical board and second horizontal plate, first horizontal plate with the second horizontal plate passes through the vertical board is connected, be equipped with the hole on the vertical board, and have certain distance between the border of hole and the first horizontal plate; the clamping piece is sleeved on the screw rod through the hole, and the nut is connected with the screw rod through threads. When the screw rod is used, the screw rod penetrates through the template, the strip is arranged on the outer side of the template, the clamping piece is used for clamping the strip, and the clamping piece, the strip and the template are fastened through the nut.

Further, the distance between the edge of the hole and the first horizontal plate is 5-80 mm.

Further, the edge of the hole is 20mm away from the first horizontal plate.

Further, the screw rod is provided with a first end and a second end, and the first end and the second end are both provided with external threads; the number of the clamping pieces is two, and the number of the nuts is two; the two clamping pieces are respectively sleeved on the first end and the second end of the screw rod through the holes, and the two nuts are respectively connected with the first end and the second end of the screw rod through the external threads.

Further, the first end and the second end of the screw rod are both provided with a constriction.

The utility model has the advantages that: the template fastener is simple in structure, convenient to install and capable of effectively fastening the template; the first horizontal plate of the retainer can press the strip, and the first horizontal plate and the strip are in surface contact, so that the stability can be improved.

Drawings

Fig. 1 is a schematic perspective view of a template fastener according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a retainer according to an embodiment of the present invention.

Fig. 3 is a schematic side view of a retainer according to an embodiment of the present invention.

Fig. 4 is a front view of the retainer according to an embodiment of the present invention.

Fig. 5 is a schematic, exploded view of a template fastener according to an embodiment of the present invention.

Fig. 6 is a schematic view of a usage scenario of the template fastener according to an embodiment of the present invention.

The reference signs explain: 100. a screw, 101, threads, 102, a constriction; 200. the clamping piece comprises a clamping piece, 201, a first horizontal plate, 202, a vertical plate, 2021, a hole, 203, a second horizontal plate; 300. a nut; 400. a strip-shaped object; 500. template, 600 square timber.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly. The thickness and shape of each layer of film in the drawings do not reflect the true proportion, and the purpose is only to illustrate the content of the present invention.

As shown in FIGS. 1 to 5, a template fastener comprises a screw 100, a clamping piece 200 and a nut 300. The clamping piece 200 comprises a first horizontal plate 201, a vertical plate 202 and a second horizontal plate 203, wherein the first horizontal plate 201 and the second horizontal plate 203 are connected through the vertical plate 202, a hole 2021 is formed in the vertical plate 202, and a certain distance is reserved between the edge of the hole 2021 and the first horizontal plate 201; the clamping piece 200 is sleeved on the screw 100 through the hole 2021, and the nut 300 is in threaded connection with the screw 100.

Generally, the formwork fastener is used to fasten a formwork of a wall, a pillar or a beam, the formwork being located at both sides or more than one side of the wall, the pillar or the beam, and the formwork fastener is used to restrict the formwork from moving to the outside. In use, screw 100 is threaded through a die plate, a strip is disposed on the outside of the die plate, the strip is clamped by first horizontal plate 201 of retainer 200, and retainer 200, the strip and the die plate are fastened by nut 300. Wherein the length of the first horizontal plate 201 of the clamping member 200 may be equal to the width of the strip and the length of the second horizontal plate 203 may be half the length of the first horizontal plate 201. The retainer 200 may be formed by bending a steel plate, the strip-shaped steel plate is bent once to form a first horizontal plate 201 and a vertical plate 202 perpendicular to each other, and is bent once again to form a second horizontal plate 203 perpendicular to the vertical plate 202, and finally, holes 2021 are formed in the vertical plate 202. The retainer 200 may also be formed by welding three small steel plates, one end of the first horizontal plate 201 is welded to one end of the vertical plate 202, the other end of the vertical plate 202 is welded to one end of the second horizontal plate 203, and finally, a hole 2021 is formed in the vertical plate 202. Of course, retainer 200 may also be made by casting or other methods.

Wherein the distance between the edge of the hole 2021 and the first horizontal plate 201 is determined according to the thickness of the strip, and can be controlled by changing the height of the vertical plate 202, the diameter of the hole 2021 or the position of the hole 2021. In some embodiments, the edge of the hole 2021 is 5-80 mm from the first horizontal plate 201. In a preferred embodiment, vertical plate 202 has a height (distance between the bottom surface of first horizontal plate 201 and the top surface of second horizontal plate 203) of 35mm, hole 2021 has a diameter of 15mm, and the lower edge of hole 2021 is tangent to the top surface of second horizontal plate 203, i.e., the upper edge of hole 2021 is 20mm from the bottom surface of first horizontal plate 201; in this manner, the clip 200 is adapted to clip a strip having a thickness of 20mm (with some tolerance allowed).

In some embodiments, the screw 100 has first and second ends (e.g., left and right ends as shown in fig. 5) each having external threads 101 disposed thereon; the number of the retainers 200 is two, and the number of the nuts 300 is two; the two clamping pieces 200 are respectively sleeved on the first end and the second end of the screw 100 through the holes 2021, and the two nuts 300 are respectively connected with the first end and the second end of the screw 100 through the external threads 101. The external threads 101 on the first and second ends may be continuous, i.e., the outer side walls of the screw 100 each contain threads.

In some embodiments, both the first and second ends of the screw 100 are provided with a constriction 102. The constriction 102 is tapered from the inside to the outside, and may have a tapered shape, a truncated cone shape, a wedge shape, or the like. Fig. 1 and 5 show a truncated-cone-shaped constriction 102.

In use, the strip 400 is placed outside the template 500, as shown in figure 6, and the strip 400, template 500 is fastened using the template fasteners. A plurality of such form fasteners may be used in combination, and fig. 6 shows three such form fasteners used in combination. The screw 100 passes through the template 500, the bar 400 is placed on the screw 100, and one side of the bar 400 is next to the square timber 600; hole 2021 of retainer 200 is telescoped from one end of screw 100 so that strip 400 is located between first horizontal plate 201 and second horizontal plate 203; and finally, screwing the nut 300 into the screw 100 to finish fastening. The bar 400 may be in various forms, and the cross section thereof may be in a shape of rectangle, square, i-shape, etc., as long as it can be placed between the first horizontal plate 201 and the second horizontal plate 203 without affecting the insertion hole 2021 of the screw 100. Fig. 6 shows a bar made of section steel.

The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims

1. A template fastener characterized by: the clamping device comprises a screw rod, a clamping piece and a nut, wherein the clamping piece comprises a first horizontal plate, a vertical plate and a second horizontal plate, the first horizontal plate and the second horizontal plate are connected through the vertical plate, a hole is formed in the vertical plate, and a certain distance is reserved between the edge of the hole and the first horizontal plate; the clamping piece is sleeved on the screw rod through the hole, and the nut is connected with the screw rod through threads.

2. The template fastener according to claim 1, wherein: the distance between the edge of the hole and the first horizontal plate is 5-80 mm.

3. The template fastener according to claim 2, wherein: the edge of the hole is 20mm away from the first horizontal plate.

4. The template fastener according to claim 1, wherein: the screw rod is provided with a first end and a second end, and the first end and the second end are both provided with external threads; the number of the clamping pieces is two, and the number of the nuts is two; the two clamping pieces are respectively sleeved on the first end and the second end of the screw rod through the holes, and the two nuts are respectively connected with the first end and the second end of the screw rod through the external threads.

5. The template fastener according to claim 4, wherein: the first end and the second end of the screw rod are both provided with a contraction part.