Folding door curtain

Abstract

The utility model discloses a folding door curtain which comprises two sets of door curtain bodies arranged in a mirror symmetry mode and a connecting mechanism arranged between the two sets of door curtain bodies, and the connecting mechanism can adjust the distance between the two sets of door curtain bodies so that the width of the folding door curtain can be adjusted. Each group of door curtain bodies comprises two parallel lower cross beams arranged at intervals and an upper cross beam located between the two lower cross beams, a plurality of connecting rods are arranged between the upper cross beams and the lower cross beams, and the connecting rods are hinged to the lower cross beams and the upper cross beams, so that the upper cross beams can be folded and stored between the two lower cross beams. The foldable door curtain is composed of the two sets of foldable door curtain bodies, after the connecting mechanisms are detached and the door curtain bodies are folded, the foldable door curtain is small in size and convenient to transport, meanwhile, through the connecting mechanisms capable of adjusting the distance between the door curtain bodies, the distance between the main trusses can be adjusted, and the foldable door curtain has good universality.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction engineering equipment technical field, concretely relates to a folding door curtain. BACKGROUND

[0002] The bridge builder, also known as the bridge builder, is a kind of mechanical equipment specially used for bridge construction. It can complete multiple links in the overall construction of bridge, such as bridge pouring. The use of bridge builder can greatly improve the efficiency and quality of bridge construction, and reduce the investment of manpower and material resources.

[0003] The middle part of the two groups of main trusses of the bridge builder is usually provided with a door curtain, which is used to connect the two groups of main trusses into one. The door curtain in the prior art is a fixed truss structure.

[0004] The disadvantages are:

[0005] 1, the fixed structure door curtain is large in size, which is inconvenient for transportation;

[0006] 2, when the bridge builder is used for bridge construction of different widths, the distance between the two groups of main trusses needs to be adjusted to adapt to the current bridge specification. Since the width of the door curtain with fixed structure cannot be adjusted, the door curtain can only be manufactured according to the required distance between the main trusses of different bridge specifications, and the versatility of the door curtain is poor. INVENTION CONTENTS

[0007] The utility model aims at providing a folding door curtain which is convenient for transportation and has good versatility.

[0008] In order to achieve the above-mentioned utility model purposes, the utility model adopts the following technical scheme:

[0009] A folding door curtain, comprising two groups of mirror-symmetrically arranged door curtain bodies, and a connecting mechanism arranged between the two groups of door curtain bodies, the connecting mechanism can adjust the distance between the two groups of door curtain bodies, so that the width of the folding door curtain is adjustable;

[0010] Each group of door curtain bodies comprises two parallel and spaced lower cross beams, and an upper cross beam located between the two lower cross beams, a plurality of connecting rods are arranged between the upper cross beam and the lower cross beams, the connecting rods are hingedly connected with the lower cross beams and the upper cross beam, so that the upper cross beam can be folded and stored between the two lower cross beams.

[0011] As a further improved technical scheme of the utility model, the upper cross beam of each group of door curtain bodies is provided with a fixing plate, and the connecting mechanism comprises a screw rod and a connecting plate;

[0012] The screw rod is arranged through the through hole of the fixing plate and connected with the fixing plate through a nut, so as to adjust the distance between the upper sides of the two groups of door curtain bodies through the fixed position of the screw rod and the fixing plate;

[0013] The connecting plate is connected with the lower cross beam through bolts matched with the connecting holes, so that the interval of the two groups of door curtain bodies on the lower side can be adjusted by selecting the connecting holes.

[0014] As a further improved technical scheme of the present application, the door curtain body further comprises a fixing rod, which forms a triangular structure with the connecting rod and the upper cross beam.

[0015] As a further improved technical scheme of the present application, the door curtain body further comprises a connecting head for fixing the upper cross beam on the main truss vertical rod, the connecting head comprises a large end for limiting and a small end for connecting with the upper cross beam, a plurality of first pin holes are arranged on the small end, and a plurality of second pin holes are arranged on the upper cross beam.

[0016] As a further improved technical scheme of the present application, the lower cross beam is provided with a mounting hole for connecting with the main truss.

[0017] Compared with the prior art, the technical effect of the present application lies in that:

[0018] The present application adopts two groups of foldable door curtain bodies, which have a small volume after being disassembled and folded, facilitating transportation, and the interval of the main truss can be adjusted through the connecting mechanism for adjusting the interval of the door curtain bodies, thus having good versatility. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is a perspective structural schematic view of a folding door curtain in the embodiment of the present application;

[0020] Fig. 2 is a use state schematic view of a folding door curtain installed on a bridge building machine in the embodiment of the present application;

[0021] Fig. 3 is Fig. 2 a local enlarged structural schematic view of B in FIG. DETAILED DESCRIPTION

[0022] The present application will be described in detail below in combination with the specific embodiments shown in the drawings. However, these embodiments do not limit the present application, and the structural, method, or functional changes made by those skilled in the art based on these embodiments are all included in the protection scope of the present application.

[0023] Please refer to Figs. 1 to 3 A folding door curtain comprises two groups of mirror-symmetrically arranged door curtain bodies 500 and a connecting mechanism arranged between the two groups of door curtain bodies 500, the connecting mechanism can adjust the interval of the two groups of door curtain bodies 500, so that the width of the folding door curtain is adjustable.

[0024] Each of the door curtain bodies 500 comprises two parallel and spaced lower cross beams 501, and an upper cross beam 502 located between the two lower cross beams 501, and a plurality of connecting rods 503 provided between the upper cross beam 502 and the lower cross beams 501, the connecting rods 503 are hingedly connected with the lower cross beams 501 and the upper cross beam 502, so that the upper cross beam 502 can be folded and stored between the two lower cross beams 501.

[0025] Before the door curtain bodies 500 are installed on the main truss 200, the connecting mechanism and the fixing rod 507 are removed, so that the upper cross beam 502 and the connecting rod 503 can be folded and stored between the two lower cross beams 501, having a smaller volume and being convenient for transportation.

[0026] After the door curtain bodies 500 are installed on the main truss 200, the distance between the two groups of door curtain bodies 500 is adjusted by the connecting mechanism, so that the distance adjustment of the main truss 200 is realized.

[0027] It should be noted that the main truss 200 is an important support structure of the bridge building machine, and the bridge building machine usually comprises two groups of main trusses 200 in the form of a rhombic frame.

[0028] In the embodiment, the upper cross beam 502 of each of the two groups of door curtain bodies 500 is provided with a fixing plate 504, and the connecting mechanism comprises a screw rod 505 and a connecting plate 506.

[0029] The screw rod 505 is provided through the through hole on the fixing plate 504 and connected with the fixing plate 504 through a nut, so as to adjust the distance between the upper sides of the two groups of door curtain bodies 500 by the fixed position of the screw rod 505 and the fixing plate 504. Specifically, the nut is threadedly connected with the screw rod 505, and the fixing plate 504 is provided with a nut on each side, so as to fix the screw rod 505 on the fixing plate 504. The distance between the upper sides of the two groups of door curtain bodies 500 is adjusted by adjusting the position of the nut on the screw rod 505, and then adjusting the fixed position of the screw rod 505 and the fixing plate 504.

[0030] The connecting plate 506 is connected with the lower cross beam 501 through a bolt matched with the connecting hole 5061 on the connecting plate 506, so as to adjust the distance between the lower sides of the two groups of door curtain bodies 500 by selecting the connecting hole 5061. Specifically, the plurality of connecting holes 5061 are arranged at intervals in the length direction of the connecting plate 506. If it is desired to reduce the distance between the lower sides of the two groups of door curtain bodies 500, the connecting holes 5061 with a shorter distance are selected to install the bolt to connect the connecting plate 506 and the lower cross beam 501 together. Conversely, if it is desired to increase the distance between the lower sides of the two groups of door curtain bodies 500, the connecting holes 5061 with a longer distance are selected to install the bolt to connect the connecting plate 506 and the lower cross beam 501 together.

[0031] In other embodiments, the connecting plates 506 of corresponding lengths can also be selected according to the required spacing of the main trusses 200 of different bridge specifications, and the spacing of the lower sides of the door curtain bodies 500 is adjusted by replacing the connecting plates 506 of different lengths, so as to realize the spacing adjustment of the main trusses 200. The connecting plates 506 are cheap and do not increase the cost too much.

[0032] In the embodiment, the door curtain body 500 further comprises a fixed rod 507, which forms a triangular structure with the connecting rod 503 and the upper cross beam 502.

[0033] The two ends of the fixed rod 507 are connected with the upper cross beam 502 and the lower cross beam 501 through bolts, and the structure of the door curtain body 500 is strengthened by the stability of the triangular structure.

[0034] In the embodiment, the door curtain body 500 further comprises a connecting head 508 for fixing the upper cross beam 502 on the upright rod 201 of the main truss 200, the connecting head 508 comprises a large end for limiting and a small end for connecting with the upper cross beam 502, a plurality of first pin holes 5081 are arranged on the small end, and a plurality of second pin holes 5021 are arranged on the upper cross beam 502.

[0035] In the embodiment, the lower cross beam 501 is provided with a mounting hole 5011 for connecting with the main truss 200.

[0036] In the installation of the folding door curtain, the lower cross beam 501 is fixed on the upright rod 201 of the main truss 200 through the bolt penetrating the mounting hole 5011, the small end of the connecting head 508 penetrates the through hole on the upright rod 201 (the diameter of the large end of the connecting head 508 is larger than the through hole), the tubular end of the upper cross beam 502 is sleeved with the small end of the connecting head 508, the connecting head 508 and the upper cross beam 502 are connected together through the positioning pin penetrating the first pin hole 5081 and the second pin hole 5021, after the upper cross beam 502 and the lower cross beam 501 are connected with the upright rod 201, the appropriate connecting hole 5061 is selected on the connecting plate 506, the connecting plate 506, the lower cross beam 501 and the lower end of the fixed rod 507 are hingedly connected through the bolt, the upper end of the fixed rod 507 is connected with the upper cross beam 502 through the bolt, and the position of the nut on the screw rod 505 is adjusted to tighten the upper sides of the two groups of door curtain bodies 500.

[0037] Compared with the prior art, the technical effect of the utility model lies in that:

[0038] The utility model adopts two groups of foldable door curtain bodies 500, has a small volume after the connecting mechanism is removed and the door curtain bodies 500 are folded, and is convenient to transport, and through the connecting mechanism for adjusting the spacing of the door curtain bodies 500, the spacing adjustment of the main trusses 200 can be realized, and good universality is achieved.

[0039] It should be finally pointed out that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features therein can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A folding door screen, characterized by, The door curtain comprises two groups of door curtain bodies arranged in mirror symmetry, and a connecting mechanism arranged between the two groups of door curtain bodies, the connecting mechanism being capable of adjusting the distance between the two groups of door curtain bodies so as to adjust the width of the folding door curtain. Each group of door curtain bodies comprises two parallel and spaced lower cross beams, and an upper cross beam arranged between the two lower cross beams, a plurality of connecting rods being arranged between the upper cross beam and the lower cross beams, the connecting rods being hingedly connected with the lower cross beams and the upper cross beam so that the upper cross beam can be folded and stored between the two lower cross beams.

2. The folding door screen according to claim 1, wherein The upper cross beams of the two groups of door curtain bodies are provided with fixing plates, and the connecting mechanism comprises a screw rod and a connecting plate. The screw rod is arranged through a through hole of the fixing plate and connected with the fixing plate by a nut, so as to adjust the distance between the upper sides of the two groups of door curtain bodies by the fixed position of the screw rod and the fixing plate. The connecting plate is provided with a plurality of connecting holes at intervals, and the connecting plate is connected with the lower cross beams by bolts matched with the connecting holes, so as to adjust the distance between the lower sides of the two groups of door curtain bodies by selecting the connecting holes.

3. The folding door screen according to claim 1, wherein The door curtain body further comprises a fixing rod, which forms a triangular structure with the connecting rod and the upper cross beam.

4. The folding door screen according to claim 1, wherein The door curtain body further comprises a connecting head for fixing the upper cross beam on the main truss vertical rod, the connecting head comprising a large end for limiting and a small end for connecting with the upper cross beam, the small end being provided with a plurality of first pin holes at intervals, and the upper cross beam being provided with a plurality of second pin holes.

5. The folding door screen according to claim 1, wherein The lower cross beam is provided with a mounting hole for connecting with the main truss.

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