CN215630708U

CN215630708U - Fastener for cross connection of square pipes

Info

Publication number: CN215630708U
Application number: CN202121432501.9U
Authority: CN
Inventors: 吴文品
Original assignee: Fujian Hualu Biotechnology Co ltd
Current assignee: Fujian Hualu Biotechnology Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-01-25
Anticipated expiration: 2031-06-25

Abstract

A fastener for cross connection of square pipes comprises a rectangular fastener body, wherein two sides of the front end of the fastener body are turned upwards to form symmetrical first reinforcing parts, and two sides of the rear end of the fastener body are turned upwards to form symmetrical second reinforcing parts; an installation groove for the first square pipe to pass through is arranged between the first reinforcing part and the second reinforcing part; the fastener body is provided with at least six mounting holes in an array mode, and the fastener is symmetrically and fixedly arranged on the upper side and the lower side of the first square pipe, the second square pipe and the third square pipe which are connected in a cross mode through bolts penetrating through the mounting holes. The two sides at the two ends of the rectangular fastener body are turned upwards to form the first reinforcing part and the second reinforcing part, a plurality of mounting holes for bolts to pass are formed in the fastener body, cross connection of square pipes is achieved, force generated in the opposite side direction is changed from bolt load to dispersed load on the reinforcing plate and the fastener body, concentrated stress is reduced, and the fastener is simple in structure and convenient to install.

Description

Fastener for cross connection of square pipes

Technical Field

The utility model relates to a greenhouse structure building material connecting piece, in particular to a fastener for cross connection of square pipes.

Background

At present, a large-scale multi-span greenhouse becomes the mainstream of modern greenhouse development, and compared with the traditional greenhouse, the large-scale multi-span greenhouse has the advantages of light weight, less consumption of framework materials and the like. However, such greenhouses have a low resistance to wind and snow loads due to their light weight, and therefore have a high requirement for the stability of the entire structure.

The square pipes are common sections in the greenhouse, however, the traditional square pipe connecting piece is connected by only one rectangular galvanized steel sheet or a connecting piece with a complex structure. If only one rectangular steel sheet is used for connection, the connection strength is insufficient, and the stability is difficult to reach the standard; if connecting with the connecting piece of complicated structure, although the load requirement can satisfy, the installation step is complicated, and large-scale many multi-span greenhouse needs the position of carrying out the square tubular product and connecting more, and the man-hour of whole installation also greatly increased.

For the square pipes connected in a cross shape, a pair of square pipes needs to be symmetrically arranged on two sides of the main square pipe, and the shearing stress applied to the bolts at the joints is concentrated, so that the simple fastener can not reach the safety standard easily.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a fastener for cross connection of square pipes, which is realized by the following steps:

a fastener for cross connection of square pipes comprises a rectangular fastener body, wherein two sides of the front end of the fastener body are turned upwards to form symmetrical first reinforcing parts, and two sides of the rear end of the fastener body are turned upwards to form symmetrical second reinforcing parts; a mounting groove for the first square pipe to pass through is formed between the first reinforcing part and the second reinforcing part; the fastener body is provided with at least six mounting holes in an array mode, and the fastener is symmetrically and fixedly arranged on the upper side and the lower side of the first square pipe, the second square pipe and the third square pipe which are connected in a cross mode through bolts penetrating through the mounting holes.

Preferably, the width of the fastener body is defined as D, the groove width of the mounting groove is defined as D, the first square tube, the second square tube and the third square tube are square tubes with the size of l x l, and l is less than or equal to D and less than D.

Preferably, the height of the first reinforcing part and the second reinforcing part which are folded upwards is defined as H, and l is greater than 2H.

Preferably, the included angle between the first reinforcing part and the fastener body is 90 °.

Preferably, the sheet is integrally formed by press molding from a 2mm galvanized steel sheet.

The utility model has the beneficial effects that:

the two sides at the two ends of the rectangular fastener body are turned upwards to form the first reinforcing part and the second reinforcing part, a plurality of mounting holes for bolts to pass are formed in the fastener body, cross connection of square pipes is achieved, meanwhile, force generated in the lateral direction is changed from bolt load to dispersed load on the reinforcing plate and the fastener body, concentrated stress is reduced, and meanwhile, the structure is simple and installation is convenient.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the present invention in use.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

A fastener 1 for cross connection of square pipes comprises a rectangular fastener body 11, wherein two sides of the front end of the fastener body 11 are turned upwards to form symmetrical first reinforcing parts 12, and two sides of the rear end of the fastener body 11 are turned upwards to form symmetrical second reinforcing parts 13; a mounting groove for the first square tube 2 to pass through is arranged between the first reinforcing part 12 and the second reinforcing part 13; the fastener body 11 is provided with at least six mounting holes 14 in an array mode, and the fastener 1 is symmetrically and fixedly arranged on the upper side and the lower side of the first square pipe 2, the second square pipe 3 and the third square pipe 4 which are connected in a cross mode through bolts penetrating through the mounting holes 14. The two sides at the two ends of the rectangular fastener body 11 are turned upwards to form the first reinforcing part 12 and the second reinforcing part 13, a plurality of mounting holes 14 for bolts to pass through are formed in the fastener body 11, cross connection of square pipes is achieved, meanwhile, force generated in the lateral direction is changed from bolt load to dispersed load on the reinforcing plate and the fastener body 11, concentrated stress is reduced, and meanwhile, the structure is simple and installation is convenient.

The first square tube 2, the second square tube 3 and the third square tube 4 are defined as square tubes with the size of l, the width of the fastener body 11 is D, the groove width of the installation groove is D, the first square tube 2 needs to penetrate through the installation groove for installation, and the second square tube 3 and the third square tube 4 are abutted against the inner surface of the fastener body 11 and connected with the first square tube 2. If l is larger than d, the second square tube 3 and the third square tube 4 cannot abut against the inner surface of the fastener body 11, and the cross connection cannot be achieved. If l > D, the first square pipe 2 cannot pass through the fastening member 1, and the cross connection cannot be completed, and if l ═ D, there is a length shortage due to a dimensional error of the second square pipe 3 or the third square pipe 4, and the bolt holes and the mounting holes 14 cannot be aligned, and thus the mounting cannot be completed. Therefore, l.ltoreq.d < D is preferred.

Preferably, the height at which the first reinforcing part 12 and the second reinforcing part 13 are folded upward is defined as H, and if the height of the reinforcing part is too low, the shear force applied to the bolt, which is the force generated perpendicular to the reinforcing part, is not sufficiently dispersed; if the height of the reinforcement portion is too high, the second square tube 3 and the third square tube 4 cannot be tightly attached to the fastener body 11, resulting in insufficient force dispersion in the direction perpendicular to the fastener body 11. Therefore, 3H > l > 2H is preferred.

For adapting to the square pipe to be connected, it is preferable that the first reinforcement portion 12 and the second reinforcement portion 13 are at an angle of 90 ° with respect to the fastener body 11.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The fastener for the cross connection of the square pipes is characterized by comprising a rectangular fastener body, wherein two sides of the front end of the fastener body are turned upwards to form symmetrical first reinforcing parts, and two sides of the rear end of the fastener body are turned upwards to form symmetrical second reinforcing parts;

a mounting groove for the first square pipe to pass through is formed between the first reinforcing part and the second reinforcing part; the fastener body is provided with at least six mounting holes in an array mode, and the fastener is symmetrically and fixedly arranged on the upper side and the lower side of the first square pipe, the second square pipe and the third square pipe which are connected in a cross mode through bolts penetrating through the mounting holes.

2. The cross-shaped connecting fastener for square pipes according to claim 1, wherein the width of the fastener body is defined as D, the groove width of the installation groove is defined as D, and if the first square pipe, the second square pipe and the third square pipe are square pipes with the size of l x l, l is not less than D and less than D.

3. The cross-shaped connecting fastener for square pipes according to claim 2, wherein if the height of the first reinforcing part and the second reinforcing part which are turned upwards is defined as H, l is greater than 2H.

4. A cross-shaped fastener for connecting square pipes according to claim 1, wherein the first reinforcing portion and the second reinforcing portion are formed at an angle of 90 ° with respect to the body of the fastener.

5. The cross-shaped connecting fastener for square pipes according to claim 1, which is integrally formed by punching a 2mm galvanized steel plate.