A dust shielding shed for civil engineering construction

Abstract

The present invention relates to the technical field related to construction equipment for building projects, and discloses a dust shelter for civil engineering construction, comprising a support frame assembly, the support frame assembly comprising a support frame unit, the support frame unit comprising a movable assembly, the movable assembly comprising a first longitudinal beam, a second longitudinal beam, and a third longitudinal beam connected in sequence from head to tail, an upper angle formed between the first longitudinal beam and the second longitudinal beam, a lower angle formed between the second longitudinal beam and the third longitudinal beam, the first longitudinal beam and the second longitudinal beam are respectively connected to a first crossbeam and a second crossbeam at an end away from the vertex of the upper angle, and the first crossbeam and the second crossbeam are connected between ends adjacent to each other, the second longitudinal beam and the third longitudinal beam are respectively connected to a third crossbeam and a fourth crossbeam at an end away from the vertex of the lower angle, and the third crossbeam and the fourth crossbeam are connected between ends adjacent to each other. This shelter can basically achieve automatic winding and automatic transportation, saving labor costs and time costs.

Description

Technical Field

[0001] The present invention relates to the technical field related to construction equipment of building engineering, and in particular to a dust shielding shed for civil engineering and infrastructure construction. Background Art

[0002] In civil infrastructure construction, dust control is a key link in ensuring the environmental friendliness and safety of construction operations. Especially in scenarios such as foamed concrete pouring, foundation pit mesh spraying, and putty mixing, temporary dust shelters need to be built in the construction area to achieve dust reduction management.

[0003] At present, there are mainly two types of dust shelters commonly found on construction sites: one is a fixed structure, which usually uses a steel frame support frame and a dust-proof mesh cover, and needs to be fixed to the ground by bolts or welding. Although it can provide stable shelter, it cannot be moved as a whole and needs to be completely disassembled and reassembled when changing sites; the other is a mobile structure, such as a shed with pulleys, block-type dust-proof panels, and foldable brackets installed at the bottom, which can be moved by pushing and pulling or transporting in sections.

[0004] The defects of the prior art are:

[0005] Fixed dust shelters, due to their immovable structure, must be completely dismantled and re-erected when relocating, resulting in lengthy construction interruptions. Repeated disassembly and assembly can easily lead to component wear and tear, significantly increasing material and labor costs. Some mobile or modular shelters have alleviated this problem to some extent, but they still rely on the assembly and manual handling of multiple components. Large shelters, in particular, require multiple people to operate, resulting in a high labor cost and making it difficult to meet the construction industry's demand for cost reduction and efficiency improvement. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a dust shielding shed for civil engineering construction.

[0007] A dust shield for civil engineering construction comprises at least two supporting frame groups arranged in parallel and a shed surface mounted on the upper ends of the supporting frame groups, and further comprises a top beam mounted between the supporting frame groups;

[0008] Different from the traditional dust shelter, each support frame group in the present solution includes a plurality of support frame units that are hinged or rotatably connected in sequence and arranged in a linear manner, each support frame unit includes at least two movable components arranged in parallel, each movable component includes a first longitudinal beam, a second longitudinal beam and a third longitudinal beam that are hinged or rotatably connected in sequence between the head and the tail, an upper angle is formed between the first longitudinal beam and the second longitudinal beam, a lower angle is formed between the second longitudinal beam and the third longitudinal beam, the first longitudinal beam and the second longitudinal beam are respectively hinged or rotatably connected to the first cross beam and the second cross beam at an end away from the vertex of the upper angle, and the first cross beam and the second cross beam are hinged or rotatably connected between ends close to each other, the second longitudinal beam and the third longitudinal beam are respectively hinged or rotatably connected to the third cross beam and the fourth cross beam at an end away from the vertex of the lower angle, and the third cross beam and the fourth cross beam are hinged or rotatably connected between ends close to each other;

[0009] The purpose of such a configuration is that when the connection between the first transverse beam and the second transverse beam is subjected to a thrust or a pull, the first longitudinal beam and the second longitudinal beam can be driven to produce an angular displacement, thereby opening or closing the upper angle; when the upper angle is closed, the first longitudinal beam is driven to produce an angular displacement, approaching the second longitudinal beam, so that the entire support frame unit is basically conical, so that when the upper angles of the entire support frame assembly are closed, the support frame assembly is rolled into a circular structure, thereby making the rolling operation of the support frame assembly simple and efficient, without the need for manual rolling, and the circular structure also provides convenience for subsequent transportation operations;

[0010] The purpose of such a setting is also to enable the second and third longitudinal beams to produce angular displacement when the connection between the third crossbeam and the fourth crossbeam is subjected to a thrust or a pull, so as to open or close the lower angle; when the lower angle is controlled to be closed, the entire support frame unit is still basically conical, but the angle of the lower angle is reduced, so that when the support frame group is rolled up into a circular structure, more support frame units can be accommodated, that is, under this rolling mode, when the diameter of the circular structure is constant, the support frame group can accommodate more support frame units, and the area of ​​the entire shelter can be larger when it is unfolded;

[0011] In addition, at least two sets of movable components arranged in parallel in each support frame unit can increase the thickness of the support frame group, so that the support frame group can maintain a stable state whether in the unfolded state or the retracted state;

[0012] In addition, when the shelter needs to be rolled up or moved, all the support frame groups can be rolled up simultaneously, which can also drive the top beam and the shelter surface to roll up. The top beam and the shelter surface can also be dismantled and the support frame groups can be rolled up one by one.

[0013] In some examples of the present invention, the hinge points corresponding to every two movable components of each support frame unit are connected by a connecting rod group consisting of a plurality of connecting rods.

[0014] The purpose of such a setting is to connect all the movable components in each support frame unit by using the connecting rod group, so that in the same support frame unit, the upper and lower angles of different movable components can be operated synchronously.

[0015] In some examples of the present invention, in each support frame unit:

[0016] The connection points between the first beam and the second beam are denoted as Q1, Q2, ..., Qn (n = the number of movable components), and the connecting rod assembly includes a first connecting rod connecting Q1, Q2, ..., Qn;

[0017] The vertices of the opening angle are denoted as M1, M2, ..., Mn (n = the number of movable components), and the connecting rod assembly includes a second connecting rod connecting M1, M2, ..., Mn;

[0018] A first telescopic assembly is provided between the first connecting rod and the second connecting rod.

[0019] The purpose of such arrangement is to utilize the operation of the first telescopic assembly and the transmission operation of the first connecting rod and the second connecting rod to achieve synchronous operation of the upper expansion angles of all movable assemblies in each support frame unit.

[0020] In some examples of the present invention, in each support frame unit:

[0021] The connection between the third beam and the fourth beam is denoted as G1, G2, ..., Gn (n = the number of movable components), and the connecting rod assembly includes a third connecting rod connecting G1, G2, ..., Gn;

[0022] The vertices of the opening angle are recorded as N1, N2, ... Nn (n = the number of movable components). The linkage system includes a fourth link connecting N1, N2, ... Nn.

[0023] A second telescopic assembly is provided between the third connecting rod and the fourth connecting rod.

[0024] The purpose of such arrangement is to utilize the operation of the second telescopic assembly and the transmission operation of the third connecting rod and the fourth connecting rod to achieve synchronous operation of the lower expansion angles of all movable assemblies in each support frame unit.

[0025] In some examples of the present invention, in each support frame unit, adjacent lower angles form a four-corner structure between ends away from their respective vertices, and roller wheels are provided at the lower ends of the four-corner structure, and the roller wheels correspond to the diagonals of the four-corner structure.

[0026] The purpose of such a setting is that: when the support frame group is in the unfolded state, the setting of the roller wheels can take into account each movable component in the support frame unit and support the movable components without the need to set rollers for each movable component; and when the support frame group is in the retracted state, several roller wheels are driven synchronously to form a state distributed around the circular structure, and the roller wheels are more concentrated, forming a structure similar to a Mecanum wheel as a whole, so that the retracted support frame group can be pushed by external force to roll, and the displacement change is achieved during the rolling process, which is convenient for transportation. In addition, due to the flexibility of the Mecanum wheel, the retracted support frame group can also change the displacement direction by external force during transportation.

[0027] In some examples of the present invention, both ends of the roller wheel are connected to telescopic rods, and the ends of the telescopic rods at both ends away from the roller wheel are respectively hinged or rotatably connected to the two ends of the diagonal lines of the four-corner structure.

[0028] The purpose of this setting is that when the lower angle of the movable component is closed or opened, the four-corner structure will undergo corresponding changes, so that the roller wheels connected to the four-corner structure need to adapt to the changes, and the hinged or rotating connection method can assist the roller wheels in adapting to the changes.

[0029] In some examples of the present invention, in each support frame unit, one of the telescopic rods corresponding to the roller wheel is rotatably connected to the second connecting rod of the current support frame unit at the end away from the roller wheel, and the other telescopic rod is rotatably connected to the second connecting rod of the adjacent support frame unit at the end away from the roller wheel.

[0030] In some examples of the present invention, a pin rod extends from the upper end of each support frame unit, so that when the support frame group is reeled up, all the pin rods are gathered together to facilitate connection with the drive assembly.

[0031] The purpose of this setting is that after the pins are gathered, they will be distributed in a ring shape following the support frame group, and the extension direction of all pins will be consistent. Therefore, after all the pins are connected to the driving assembly, the support frame group can be driven by the driving assembly to produce angular displacement, thereby realizing automatic transportation of the support frame group.

[0032] In some examples of the present invention, the drive assembly includes a drive wheel having slots corresponding to the pin rods, and a power source whose output end is connected to the drive wheel to drive the drive wheel to rotate.

[0033] The purpose of such a setting is that the pin rods are assembled and installed in the groove seat, and the power source provides power to drive the winding support frame group to rotate through the driving wheel to realize the transfer of the support frame group.

[0034] In some examples of the present invention, the drive assembly further includes a bearing connecting the main body of the power source to the drive wheel.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] First, the dust shelter disclosed in the present invention makes the winding operation of the support frame group simple and efficient, without the need for manual winding, and the circular structure after winding provides convenience for subsequent transportation operations; secondly, under the winding method of the present shelter, when the diameter of the circular structure is constant, the support frame group can accommodate more support frame units, and the area of ​​the entire shelter is larger when unfolded; thirdly, the support frame group can maintain a stable state regardless of whether it is in the unfolded state or the wound state; in addition, when the shelter needs to be wound up or transferred, all the support frame groups can be wound up synchronously, which can also drive the top beam and the shelter surface to be wound up, or the top beam and the shelter surface can be disassembled and the support frame groups can be wound up one by one, which is convenient and quick.

[0037] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 This is a front view of a dust shield for civil engineering construction according to an embodiment of the present invention;

[0040] Figure 2 is a top view of the shielding shed with the shed surface removed in an embodiment of the present invention;

[0041] Figure 3 is a front view of a movable component in an embodiment of the present invention;

[0042] Figure 4 is a front view of a support frame assembly according to an embodiment of the present invention;

[0043] Figure 5 is a schematic diagram of an embodiment of the present invention in which the upper and lower angles of the movable assembly are both in a closed state;

[0044] Figure 6 is a schematic diagram of the support frame assembly in a reeled state according to an embodiment of the present invention;

[0045] Figure 7 is a top view of a support frame unit according to an embodiment of the present invention;

[0046] Figure 8 is a simplified three-dimensional view of a support frame unit in an embodiment of the present invention;

[0047] Figure 9 is a side view of a support frame unit according to an embodiment of the present invention;

[0048] Figure 10 FIG1 is a schematic diagram of a partially cutaway view of a drive assembly in an embodiment of the present invention. ...

[0049] Description of reference numerals:

[0050] Support frame assembly 1, support frame unit 11, movable assembly 111, first longitudinal beam 1111, second longitudinal beam 1112, third longitudinal beam 1113, first crossbeam 1114, second crossbeam 1115, third crossbeam 1116, fourth crossbeam 1117, stop 1118, connecting rod assembly 112, first connecting rod 1121, second connecting rod 1122, third connecting rod 1123, fourth connecting rod 1124, first telescopic assembly 113, second telescopic assembly 114, pin 115;

[0051] Upper opening angle α, lower opening angle β;

[0052] Shed 2;

[0053] Top beam 3;

[0054] Roller assembly 4, roller wheel 41, telescopic rod 42, connecting block 43, docking block 44;

[0055] Driving assembly 5, driving wheel 51, slot seat 511, column slot 512; latch 52, power source 53, bearing 54, bearing seat 55, bracket 56. DETAILED DESCRIPTION

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0058] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0059] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0060] Reference below Figures 1 to 10 The figure shows a dust shield for civil engineering construction provided by an embodiment of the present invention.

[0061] For details, please see the attached Figure 1 , attached Figure 1 This is a front view of a dust shelter for civil engineering infrastructure construction. The shelter includes two support frame groups 1 arranged in parallel and a shelter surface 2 installed on the upper ends of the support frame groups 1. It also includes a top beam 3 erected between the two support frame groups 1. In this embodiment, the shelter surface 2 only covers the upper area of ​​the shelter. In other embodiments, such as in construction scenarios with high dust shielding requirements, the shelter surface 2 can be set as needed, that is, it can be extended to cover the side of the shelter.

[0062] Please see the attached Figure 2, which is a top view of the shed after the shed surface is removed, the two parallel support frame groups 1 each include a plurality of support frame units 11 that are rotatably connected in sequence and arranged linearly, so that the support frame group 1 extends linearly. The two support frame groups 1 are arranged in parallel, and the top beams 3 have a plurality of top beams 3 that are evenly distributed along the extension direction of the support frame group 1.

[0063] Please continue to see the attached Figure 2 Each support frame unit 11 includes two movable components 111 arranged in parallel, so that the support frame group 1 has a certain thickness to ensure its stability in unfolding and rolling. How to roll up the support frame group 1 will be introduced below.

[0064] Please see the attached Figure 3 , is a front view of the movable assembly, each movable assembly 111 includes a first longitudinal beam 1111, a second longitudinal beam 1112 and a third longitudinal beam 1113 that are rotatably connected between the head and tail, an upper angle α is formed between the first longitudinal beam 1111 and the second longitudinal beam 1112, and a lower angle β is formed between the second longitudinal beam 1112 and the third longitudinal beam 1113, the first longitudinal beam 1111 and the second longitudinal beam 1112 are respectively rotatably connected to a first cross beam 1114 and a second cross beam 1115 at an end away from the vertex of the upper angle α, and the first cross beam 1114 and the second cross beam 1115 are rotatably connected between ends close to each other, the second longitudinal beam 1112 and the third longitudinal beam 1113 are respectively rotatably connected to a third cross beam 1116 and a fourth cross beam 1117 at an end away from the vertex of the lower angle β, and the third cross beam 1116 and the fourth cross beam 1117 are rotatably connected between ends close to each other;

[0065] The movable component 111 configured in this way can drive the first longitudinal beam 1111 and the second longitudinal beam 1112 to produce angular displacement and open or close the upper angle α when the connection between the first crossbeam 1114 and the second crossbeam 1115 is subjected to a thrust or a pull; and can drive the second longitudinal beam 1112 and the third longitudinal beam 1113 to produce angular displacement and open or close the lower angle β when the connection between the third crossbeam 1116 and the fourth crossbeam 1117 is subjected to a thrust or a pull.

[0066] Please see the attached Figure 4 , is a front view of the support frame group, the support frame units 11 are connected to each other in sequence, so the movable components 111 arranged side by side are also connected in sequence, and there is a common beam between adjacent movable components 111, for example Figure 4 The third longitudinal beam 1113 of the middle movable assembly 111a is the first longitudinal beam 1111 of the movable assembly 111b, and the third longitudinal beam 1113 of the movable assembly 111b is the first longitudinal beam 1111 of the next movable assembly 111, and so on.

[0067] In addition, the crossbeams between adjacent movable components 111 may also be shared.

[0068] Please see the attached Figure 5 , is a schematic diagram of the movable assembly in a closed state with both the upper and lower angles. That is, the shelter needs to shrink the movable assembly 111 into a substantially conical shape by closing the upper angle α and the lower angle β, thereby shrinking the support frame unit 11 into a substantially conical shape. When all the support frame units 11 are shrunk into a substantially conical shape, the support frame group 1 is rolled up as shown in FIG. Figure 6 ( Figure 6 (a schematic diagram of the support frame assembly in a reeled state) as shown in the circular structure;

[0069] Please continue to see the attached Figure 5 When the movable assembly 111 is retracted, both the upper angle α and the lower angle β are closed, but the upper angle α is basically completely closed. A stopper 1118 is provided in the lower angle β. The stopper 1118 extends from the middle of the second longitudinal beam 1112 and the third longitudinal beam 1113. The stopper 1118 closes the lower angle β to a certain extent. In this way, the movable assembly 111 can be tapered after retraction, so that the support frame assembly 1 can be rolled up into a circular structure.

[0070] In addition, for the sake of reasonable spatial layout, when the upper angle α is closed, the first crossbeam 1114 and the second crossbeam 1115 are pushed out of the upper angle α, and the third crossbeam 1116 and the fourth crossbeam 1117 are retracted into the lower angle β.

[0071] Please see the attached Figure 7 , is a top view of the support frame unit, where the hinge points corresponding to the two movable components 111 of the support frame unit 11 are connected by a connecting rod group 112 composed of a plurality of connecting rods;

[0072] For details, please refer to the attached Figure 8 , which is a simplified three-dimensional view of the support frame unit. In the support frame unit 11, there are two movable components 111, and the corresponding first crossbeam 1114 and second crossbeam 1115 have two connection points, namely Q1 and Q2, and the connecting rod group 112 includes a first connecting rod 1121 connecting Q1 and Q2; there are also two vertices of the upper angle α, namely M1 and M2, and the connecting rod group 112 includes a second connecting rod 1122 connecting M1 and M2; a first telescopic component 113 is provided between the first connecting rod 1121 and the second connecting rod 1122. The first telescopic component 113 is an electric telescopic rod. In other embodiments, it can also be a cylinder or a hydraulic cylinder, wherein the fixed end of the first telescopic component 113 is connected to the second connecting rod 1122, and the output end is connected to the first connecting rod 1121;

[0073] In this way, the pushing out or contracting operation of the first telescopic component 113 can drive the two movable components 111 to operate simultaneously.

[0074] Please continue to see the attached Figure 8 In the support frame unit 11, there are also two corresponding connections between the third crossbeam 1116 and the fourth crossbeam 1117, namely G1 and G2, and the connecting rod group 112 further includes a third connecting rod 1123 connecting G1 and G2; there are also two vertices of the lower angle β, namely N1 and N2, and the connecting rod group 112 further includes a fourth connecting rod 1124 connecting N1 and N2; a second telescopic assembly 114 is provided between the third connecting rod 1123 and the fourth connecting rod 1124, and the second telescopic assembly 114 is also an electric telescopic rod. In other embodiments, it can also be a cylinder or a hydraulic cylinder, wherein the fixed end of the second telescopic assembly 114 is connected to the fourth connecting rod 1124, and the output end is connected to the third connecting rod 1123;

[0075] In this way, the pushing out or contracting operation of the second telescopic component 114 can drive the two movable components 111 to operate simultaneously.

[0076] Please continue to see the attached Figure 7 The connection methods between the longitudinal beams, between the cross beams, and between the longitudinal beams and cross beams are: a through hole is opened at the end of each longitudinal beam and cross beam (not shown in the figure), so that the corresponding connecting rod passes through the through hole to realize the rotation connection between each other.

[0077] Please continue to see the attached Figure 8 In each support frame unit 11, adjacent lower angles β form a quadrangular structure between the ends away from their respective vertices. The lower end of the quadrangular structure is provided with a roller assembly 4, which includes a roller wheel 41. The roller wheel 41 corresponds to the diagonal line of the quadrangular structure. At the same time, the arrangement of the roller wheel 41 is as follows: Figure 7 It is also reflected in;

[0078] Since the roller wheel 41 is arranged at the lower end of the two lower angles β, when the lower angle β is closed, the state of the roller wheel 41 also needs to change accordingly;

[0079] For details, please refer to the attached Figure 7 The roller assembly 4 further includes telescopic rods 42 provided at both ends of the roller wheel 41. The ends of the telescopic rods 42 at both ends away from the roller wheel 41 are rotatably connected to the ends of the diagonal lines of the four-corner structure respectively. This arrangement enables the roller wheel 41 to adapt to changes when the lower angle β is closed.

[0080] For more details, please refer to the attached Figure 8The roller wheel 41 is specifically connected in the following manner: one of the telescopic rods 42 corresponding to the roller wheel 41 is rotatably connected to the second connecting rod 1122 of the current support frame unit 11 at the end away from the roller wheel 41, and the other telescopic rod 42 is rotatably connected to the second connecting rod 1122 of the adjacent support frame unit 11 at the end away from the roller wheel 41. That is, the connecting rods between adjacent movable components 111 also have a shared relationship;

[0081] In this way, when the lower angle β of the front support frame unit 11 shrinks, the two adjacent second connecting rods 1122 approach each other, the roller wheel 41 produces angular displacement, and the telescopic rod 42 shrinks. After all the support frame units 11 shrink, all the roller wheels 41 are arranged in a ring shape outside the wound support frame group 1, appearing similar to a Mecanum wheel, thereby facilitating subsequent transfer, that is, the wound support frame group 1 can not only achieve displacement by rolling, but also change the direction of travel through manual control, and even facilitate climbing.

[0082] For further information, please refer to the attached Figure 2 and attached Figure 8 , the top beam 3 is connected between the two support frame units 11, specifically, part of it is connected between the corresponding two first connecting rods 1121 and fixed by screws, and the remaining part is connected between the corresponding two fourth connecting rods 1124 and also fixed by screws;

[0083] During rolling and transportation, the roof surface 2 and the top beam 3 can be disassembled and the two support frame groups 1 can be rolled up separately, or the two support frame groups 1 can be rolled up simultaneously and transported together with the roof surface 2 and the top beam 3.

[0084] Please see the attached Figure 9 , is a side view of the support frame unit, the connection method between the telescopic rod 42 and the second connecting rod 1122 is: a connecting block 43 is provided on the second connecting rod 1122, and a docking block 44 is provided at the end of the telescopic rod 42, and one end of the docking block 44 is rotatably placed in the connecting block 43;

[0085] Please continue to see the attached Figure 6 and attached Figure 9 , the support frame group 1 after winding can be connected to the drive assembly 5 to achieve the rolling displacement of the support frame group 1. A pin rod 115 extends from the upper end of each support frame unit 11. The pin rod 115 is located at the end of the support frame unit 11 away from the upper top beam 3 and is connected to the connecting rod by a screw. When the support frame group 1 is wound, all the pin rods 115 are gathered in a ring-shaped arrangement to facilitate connection with the drive assembly 5;

[0086] The pin rod 115 and the top beam 3 are in a one-to-one correspondence, with one part connected to the first connecting rod 1121 and the other part connected to the fourth connecting rod 1124 .

[0087] Please see the attached Figure 10 , is a schematic diagram of a partial cross-section of the drive assembly, the drive assembly 5 includes a drive wheel 51, on which a groove seat 511 corresponding to the pin rod 115 is opened. The groove seat 511 is specifically opened on one side of the drive wheel 51 and distributed along the circumference of the drive wheel 51. After the gathered pin rod 115 is placed in the groove seat 511, the pin rod 115 and the groove seat 511 are connected by the latch 52; the drive assembly 5 also includes a power source 53 connected to the drive wheel 51 at the output end to drive the drive wheel 51 to rotate. In this embodiment, the power source 53 is a motor. In other embodiments, the power source 53 also includes a reducer, which drives the drive wheel 51 to rotate through the motor and the reducer, thereby driving the rolling displacement of the support frame group 1 after winding. If the displacement direction needs to be changed, the top beam 3 after winding can be controlled by manpower, but this control operation needs to be based on a slow rolling speed.

[0088] Please continue to see the attached Figure 10 The driving assembly 5 also includes a bearing 54 that connects the main body of the power source 53 with the driving wheel 51. Specifically, a column groove 512 is formed on the end of the driving wheel 51 away from the groove seat 511. The output end of the power source 53 extends into the column groove 512 and is connected to the column groove 512 with an interference fit. The bearing 54 is sleeved outside the column groove 512, and its outer ring is fixed on the bearing seat 55. The bearing seat 55 is connected to the power source 53 through the bracket 56.

[0089] Other components of the shelter according to the embodiment of the present invention, such as the motor, the electric telescopic rod, etc., and their operation are well known to those skilled in the art and will not be described in detail here.

[0090] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0091] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A dust shield for civil engineering construction, comprising at least two support frame groups arranged in parallel and a shed surface mounted on the upper ends of the support frame groups, and further comprising a top beam erected between the two support frame groups, characterized in that: Each of the support frame groups includes a plurality of support frame units that are hinged or rotatably connected in sequence and arranged in a linear manner, each of the support frame units includes at least two movable components arranged in parallel, each of the movable components includes a first longitudinal beam, a second longitudinal beam and a third longitudinal beam that are hinged or rotatably connected in sequence between the head and the tail, an upper angle is formed between the first longitudinal beam and the second longitudinal beam, a lower angle is formed between the second longitudinal beam and the third longitudinal beam, the first longitudinal beam and the second longitudinal beam are respectively hinged or rotatably connected to a first cross beam and a second cross beam at an end away from the vertex of the upper angle, and the first cross beam and the second cross beam are hinged or rotatably connected between ends close to each other, the second longitudinal beam and the third longitudinal beam are respectively hinged or rotatably connected to a third cross beam and a fourth cross beam at an end away from the vertex of the lower angle, and the third cross beam and the fourth cross beam are hinged or rotatably connected between ends close to each other; When the movable assembly is retracted, the upper opening angle and the lower opening angle are both closed, so that the movable assembly is in a conical shape after retraction, so that the support frame group can be rolled up into a circular structure.

2. A dust shield for civil engineering construction according to claim 1, characterized in that: The hinge points corresponding to every two movable components of each support frame unit are connected by a connecting rod group consisting of a plurality of connecting rods.

3. A dust shield for civil engineering construction according to claim 2, characterized in that: In each of the support frame units: The connection points between the first crossbeam and the second crossbeam are denoted as Q1, Q2, ..., Qn (n = the number of movable components), and the connecting rod group includes a first connecting rod connecting Q1, Q2, ..., Qn; The vertices of the opening angle are denoted as M1, M2, ..., Mn (n = the number of movable components), and the connecting rod group includes a second connecting rod connecting M1, M2, ..., Mn; A first telescopic assembly is provided between the first connecting rod and the second connecting rod.

4. The dust shielding shed for civil engineering construction according to claim 2, characterized in that: In each of the support frame units: The connection points between the third crossbeam and the fourth crossbeam are denoted as G1, G2, ..., Gn (n = the number of movable components), and the connecting rod group includes a third connecting rod connecting G1, G2, ..., Gn; The vertices of the opening angle are recorded as N1, N2, ..., Nn (n = the number of movable components), and the connecting rod group includes a fourth connecting rod connecting N1, N2, ..., Nn; A second telescopic assembly is provided between the third connecting rod and the fourth connecting rod.

5. The dust shielding shed for civil engineering construction according to claim 3, characterized in that: In each of the support frame units, adjacent lower corners form a quadrangular structure between ends away from their respective vertices, and roller wheels are provided at the lower ends of the quadrangular structures, and the roller wheels correspond to the diagonal lines of the quadrangular structure.

6. A dust shield for civil engineering construction according to claim 5, characterized in that: Both ends of the roller wheel are connected with telescopic rods, and the ends of the telescopic rods at both ends away from the roller wheel are respectively hinged or rotatably connected to the two ends of the diagonal lines of the four-corner structure.

7. A dust shield for civil engineering construction according to claim 6, characterized in that: In each of the support frame units, one of the telescopic rods is rotatably connected to the second connecting rod of the current support frame unit at one end away from the roller wheel, and the other telescopic rod is rotatably connected to the second connecting rod of the adjacent support frame unit at one end away from the roller wheel.

8. A dust shield for civil engineering construction according to any one of claims 1 to 4, characterized in that: A pin rod extends from the upper end of each support frame unit, so that when the support frame group is rolled up, all the pin rods are gathered together to facilitate connection with the driving component.

9. The dust shield for civil engineering construction according to claim 8, characterized in that: The driving assembly includes a driving wheel, which is provided with slots corresponding to the pin rods one by one, and also includes a power source whose output end is connected to the driving wheel and is used to drive the driving wheel to rotate.

10. A dust shield for civil engineering construction according to claim 9, characterized in that: The drive assembly also includes a bearing connecting the main body of the power source to the drive wheel.

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