Splicing type quick dismounting truss with adjustable specification

Abstract

The utility model discloses a specification-adjustable split mounting type fast dismounting truss, which comprises a fixed main beam and a telescopic auxiliary beam, the fixed main beam and the telescopic auxiliary beam are prism tubes, and the telescopic auxiliary beam is sleeved in the fixed main beam and can stretch out and draw back. Each fixed main beam and the corresponding telescopic auxiliary beam sleeved with the fixed main beam form a unit beam frame, the four unit beam frames are arranged at intervals in the vertical direction and the horizontal direction to form a square array, and every two unit beam frames on the upper horizontal layer face and the lower horizontal layer face are connected together through a transverse plate. The two unit beam frames on the front vertical plane and the rear vertical plane are connected together through the inverted-Y-shaped support and the support shaped like the Chinese character'ji ', and then the whole truss is formed. According to the utility model, the prefabricated members with standard specifications are adopted, and through modular design and a special connection mechanism, rapid construction and disassembly are realized, and complicated bolt connection is not needed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of truss building technology, in particular to a kind of adjustable specification assembled fast disassembly truss. BACKGROUND

[0002] Under most working conditions such as construction engineering, emergency rescue and large-scale activities, the rapid erection and disassembly of temporary structures is a common demand. Traditional temporary support structures, such as scaffolding and fixed trusses, usually have problems such as complex installation, difficult disassembly, material waste and low reuse rate. These structures often rely on a large number of bolt connections and complex assembly processes, resulting in low construction efficiency, and the structural stability and safety will decrease after multiple uses.

[0003] In addition, in the case of not having on-site splicing operation conditions, the traditional truss that has completed assembly in advance brings great inconvenience in transportation and storage process, increases logistics cost. In emergency situations, such as after natural disasters, temporary bridges, roads, shelters, etc. need to be quickly erected, the erection speed of traditional trusses often cannot meet the emergency demand. In large-scale activities or events, the installation and disassembly process of traditional trusses for temporary stands and stages is also often time-consuming and requires a lot of labor. SUMMARY

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a kind of adjustable specification assembled fast disassembly truss which is reasonable in design, easy to disassemble and adjustable in length.

[0005] The technical solution of the utility model is:

[0006] A kind of adjustable specification assembled fast disassembly truss, comprising fixed main girder and telescopic auxiliary beam, the fixed main girder and telescopic auxiliary beam are all prismatic tubes, and the telescopic auxiliary beam is sleeved in the fixed main girder, can be telescopic, one fixed main girder and the telescopic auxiliary beam sleeved therein constitute a unit beam, four unit beam racks are arranged in square arrangement from top to bottom and from left to right, wherein, two unit beam racks on the upper and lower horizontal planes are connected together by horizontal plate, and two unit beam racks on the front and rear vertical planes are connected together by herringbone support and wooden herringbone support.

[0007] Further, the upper and lower end faces of the fixed main girder and telescopic auxiliary beam are respectively provided with lock-shaped positioning holes and square insertion holes, the front and rear end faces of the fixed main girder and telescopic auxiliary beam are respectively provided with connecting holes, and the upper end face of the fixed main girder is provided with a lug in the middle.

[0008] Further, the wooden-shaped support includes a middle support rod and two side tension rods, upper ends of the two tension rods and the support rod are hinged together and inserted into the square insertion hole of the lower end surface of the upper fixed main beam and connected through the bolt or pin passing through the connecting hole of the fixed main beam; a tension sleeve rod is sleeved with the lower end of the tension rod, the two are slidingly connected and provided with a length adjusting mechanism, a ball head is arranged at the lower end of the tension sleeve rod, a support sleeve rod is sleeved with the lower end of the support rod, the two are slidingly connected and provided with a length adjusting mechanism, a support seat is arranged at the lower end of the support sleeve rod, the support seat is connected with the lug of the upper end surface of the lower fixed main beam, and the ball head is inserted into the lock-shaped positioning hole of the upper end surface of the lower fixed main beam.

[0009] Further, the wooden-shaped support includes a middle support rod and two side tension rods, upper ends of the two tension rods and the support rod are hinged together and inserted into the square insertion hole of the lower end surface of the upper fixed main beam and connected through the bolt or pin passing through the connecting hole of the fixed main beam; a tension sleeve rod is sleeved with the lower end of the tension rod, the two are slidingly connected and provided with a length adjusting mechanism, a ball head is arranged at the lower end of the tension sleeve rod, a support sleeve rod is sleeved with the lower end of the support rod, the two are slidingly connected and provided with a length adjusting mechanism, a support seat is arranged at the lower end of the support sleeve rod, the support seat is connected with the lug of the upper end surface of the lower fixed main beam, and the ball head is inserted into the lock-shaped positioning hole of the upper end surface of the lower fixed main beam.

[0010] Further, the lug on the fixed main beam is two, parallel and spaced, and the connecting hole is arranged through the lug, facilitating connection.

[0011] Further, the horizontal plate includes a connecting plate and a clamping plate, wherein two clamping plates are arranged at two ends of the connecting plate respectively, a horizontal connecting hole is arranged through the clamping plate, the width between the two clamping plates is adapted to the width of the fixed main beam or the telescopic auxiliary beam, and the length of the connecting plate is adapted to the width between the two fixed main beams or telescopic auxiliary beams.

[0012] Further, the prismatic tube is a rectangular prismatic tube, or a square prismatic tube, or a regular hexagonal prismatic tube, which is determined according to needs.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model adopts standard specification prefabricated parts, realizes quick erection and disassembly through modular design and special connecting mechanism, and does not need complex bolt connection.

[0015] 2, the truss middle part is supported and connected by the herringbone support, the two side parts are supported and connected by the herringbone support, the strength of the whole is improved, and each support can be telescopic, so that the length and height are adjusted.

[0016] 3, the utility model discloses the lock shape positioning hole, one end is convenient for inserting and pulling out, the other end realizes spacing, forms support connection, and it is convenient to dismount.

[0017] 4, the utility model discloses fixed main beam and fixed main beam between, telescopic auxiliary beam and telescopic auxiliary beam between respectively through the transverse plate and be connected together, form firm whole.

[0018] 5, the utility model discloses the temporary structure field such as emergency rescue and post-disaster reconstruction, construction temporary support, large -scale activity temporary stand, bridge construction temporary support, industrial and agricultural facilities's rapid deployment etc. for needing frequently set up and dismount, still can be repeatedly used, the scope of application is wide, has good economic benefit after popularization. DRAWINGS

[0019] Figure 1 It is a three-dimensional structure diagram of the adjustable size assembled quick dismounting truss.

[0020] Figure 2 It is Figure 1 It is a front view of the adjustable size assembled quick dismounting truss.

[0021] Figure 3 It is Figure 1 It is a top view of the adjustable size assembled quick dismounting truss.

[0022] Figure 4 It is Figure 1 It is a bottom view of the adjustable size assembled quick dismounting truss.

[0023] Figure 5 It is Figure 1 It is a side view of the adjustable size assembled quick dismounting truss.

[0024] Figure 6 It is Figure 1 It is a front view of the sleeve connection state of fixed main beam and telescopic auxiliary beam.

[0025] Figure 7 It is Figure 6 It is a top view of the sleeve connection state of fixed main beam and telescopic auxiliary beam.

[0026] Figure 8 It is Figure 6 It is a bottom view of the sleeve connection state of fixed main beam and telescopic auxiliary beam.

[0027] Figure 9 It is Figure 6A side view of the sleeve joint state of the fixed main beam and the telescopic auxiliary beam;

[0028] Figure 10 For Figure 1 A structural schematic view of the main beam cross plate;

[0029] Figure 11 For Figure 10 A bottom view of the main beam cross plate shown;

[0030] Figure 12 For Figure 10 A side view of the main beam cross plate shown;

[0031] Figure 13 For Figure 1 A structural schematic view of the herringbone support;

[0032] Figure 14 For Figure 1 A structural schematic view of the wooden support. DETAILED DESCRIPTION

[0033] Embodiment: Referring to Figure 1 — Figure 14 , in the figure, 1- telescopic auxiliary beam, 2- herringbone support, 3- auxiliary beam cross plate, 4- fixed main beam, 5- wooden support, 6- lug cross plate, 7- main beam cross plate, 8- connecting hole, 9- lug, 10- lock-shaped positioning hole, 11- square insertion hole, 12- lug insertion hole, 13- tension rod, 14- tension sleeve rod, 15- ball head, 16- pressure rod, 17- pressure sleeve rod, 18- groove, 19- support rod, 20- support sleeve rod, 21- support seat.

[0034] A size-adjustable assembled quick disassembly truss, comprising a fixed main beam 4 and a telescopic auxiliary beam 1, wherein: the fixed main beam 4 and the telescopic auxiliary beam 1 are both prismatic tubes (which can be rectangular prismatic tubes, square prismatic tubes, or regular hexagonal prismatic tubes, determined according to needs, and in this embodiment, square tubes), and the telescopic auxiliary beam 1 is sleeved in the fixed main beam 4, and the two are slidingly matched to be telescopic, achieving the purpose of adjusting the length, one fixed main beam 4 and the telescopic auxiliary beam 1 sleeved therein constitute a unit beam frame, and four unit beam frames are arranged in a square arrangement at intervals up, down, left and right, wherein the two unit beam frames on the upper and lower horizontal planes are connected together through a cross plate, and the two unit beam frames on the front and rear vertical planes are connected together through a herringbone support 2 and a wooden support 5.

[0035] Preferred solution: The upper and lower end faces of the fixed main beam 4 and the telescopic auxiliary beam 1 are respectively provided with lock-shaped positioning holes 10 and square insertion holes 11 at intervals. The lock-shaped positioning hole 10 is composed of a long strip hole and a round hole. The diameter of the round hole is larger than the width of the strip hole. The front and rear end faces of the fixed main beam 4 and the telescopic auxiliary beam 1 are respectively provided with connecting holes 8 at intervals. The upper end face of the fixed main beam 4 is provided with a hanging lug 9 in the middle. There are two hanging lugs 9, which are parallel and spaced apart. The connecting holes 8 are provided through the hanging lugs 9 to facilitate bolt or pin connection.

[0036] Preferred solution: The wooden bracket 5 includes a central support rod 19 and two side tension rods 13. The upper ends of the two tension rods 13 and the support rod 19 are hinged together and inserted into the square insertion hole 11 on the lower end face of the upper fixed main beam 4. They are then connected by bolts or pins passing through the connecting hole 8 of the fixed main beam 4. The hinged connection allows for changing the included angle between the three components. A tension sleeve 14 is sleeved on the lower end of the tension rod 13. The two are slidably connected and equipped with a length adjustment mechanism. The tension sleeve 14... The lower end is provided with a ball head 15, and the lower end of the support rod 19 is sleeved with a support sleeve rod 20. The two are slidably connected and are provided with a length adjustment mechanism. The lower end of the support sleeve rod 20 is provided with a support seat 21. The support seat 21 is connected to the lug 9 on the upper end face of the fixed main beam 4 below (connected by a bolt or pin through the connecting hole 8). The ball head 15 is inserted into the locking positioning hole 10 on the upper end face of the fixed main beam 4 below. The ball head 15 is inserted through the round hole of the locking positioning hole 10. After moving, it is limited by the strip hole.

[0037] Preferred solution: The herringbone bracket 2 includes a tension rod 13 and a pressure rod 16. The upper ends of the tension rod 13 and the pressure rod 16 are hinged together and inserted into the square insertion hole 11 on the lower end face of the upper fixed main beam 4 or telescopic auxiliary beam 1. They are then connected by bolts or pins passing through the connection hole 8 of the fixed main beam 4 or telescopic auxiliary beam 1. The hinged connection allows for changing the included angle between the two. The lower end of the tension rod 13 is fitted with a tension sleeve 14. The two are slidably connected and equipped with a length adjustment mechanism. The lower end of 14 is provided with a ball head 15, and the lower end of the pressure rod 16 is sleeved with a pressure sleeve rod 17. The two are slidably connected and are provided with a length adjustment mechanism. The lower end of the pressure sleeve rod 17 is provided with a groove 18. The lower ends of the tension sleeve rod 14 and the pressure sleeve rod 18 are respectively inserted into the locking positioning hole 10 on the upper end face of the fixed main beam 4 or the telescopic auxiliary beam 1 below. Furthermore, the pressure rod 16 and tension rod 13 of the two adjacent herringbone brackets 2 are used in cooperation. At this time, the ball head 15 contacts the groove 18 to prevent the two from coming out.

[0038] The length adjustment mechanism can be achieved by using screws and threaded holes. Screws are installed on the outer sleeve, and threaded holes are spaced apart on the inner sleeve. The screws are screwed into different threaded holes to achieve different extension and retraction lengths.

[0039] Alternatively, the length adjustment mechanism can be a threaded connection, where rotating the sleeve rod adjusts the telescopic length, and a lock nut can be used to lock the adjusted length.

[0040] Preferred solution: The horizontal plate includes a connecting plate and a clamping plate. Two clamping plates are respectively provided at both ends of the connecting plate. A horizontal connecting hole 8 is provided through the clamping plate. The width between the two clamping plates is adapted to the width of the fixed main beam 4 or the telescopic auxiliary beam 1. The length of the connecting plate is adapted to the width between the two fixed main beams 4 or the telescopic auxiliary beam 1.

[0041] Specifically, the horizontal plate used in conjunction with the telescopic auxiliary beam 1 is called the auxiliary beam horizontal plate 3, the horizontal plate used in conjunction with the fixed main beam 4 is called the main beam horizontal plate 7, and the horizontal plate used in conjunction with the lugs 9 on the fixed main beam 4 is called the lug horizontal plate 6. The difference between the lug horizontal plate 6 and the main beam horizontal plate 7 is that the connecting plate is provided with lug insertion holes 12, which facilitates the passage of the lugs 9.

[0042] Taking the construction of a common parallel chord truss as an example, the process is briefly described:

[0043] 1. First, build one truss:

[0044] Take two unit beam frames as two main beam frames in a vertical plane. Select an appropriately sized telescopic auxiliary beam 1 according to the length of the construction. Adjust the spacing between the two unit beam frames according to the actual working conditions.

[0045] Adjust the support rod 19 of the wooden bracket 5 to a suitable height, and adjust the length of its tension rod 13 to a suitable length and opening angle. Then, insert the upper end of the wooden bracket 5 into the square insertion hole 11 and fix it. Connect the support base 21 to the hanging ear 9, and at the same time, put the two ball heads 15 into the lock-shaped positioning hole 10 to lock them.

[0046] Adjust the lengths of the two tension rods 13 of the herringbone bracket 2 to a suitable length and opening angle, then insert the upper end of the herringbone bracket 2 into the square insertion hole 11 to fix it, and then put the two ball heads 15 into the lock-shaped positioning hole 10 to lock it.

[0047] Since tension member 13 and compression member 16 have different functions, it is necessary to use the node method in advance to perform a force analysis based on the target truss structure, determine the force form of the members at the corresponding positions, and set the corresponding members at the corresponding positions.

[0048] Assuming there are two adjacent sets of A-frame brackets 2, referred to as Group A and Group B respectively, the ball head 15 of Group A is inserted into the locking positioning hole 10 and pulled in the direction of the force component so that its neck is locked in the groove. Correspondingly, the pressure sleeve 17 of the adjacent Group B is inserted into the current hole, so that the groove 18 on the pressure sleeve 17 matches and contacts the ball head 15 of Group A. At this time, because the ball head 15 of Group A is restricted by the shape of the locking positioning hole 10, and the only outlet of the ball head 15 is blocked by the groove 18 of Group B, since the pressure rod of Group B is only subjected to pressure under truss load, this pressure effect further fixes the tension rod of Group A. The groove 18 can adopt a spherical structure, which can better match the ball head 15.

[0049] 2. Assembly and molding:

[0050] Place the two pre-built single-sided trusses symmetrically, connect them using different horizontal plates, and insert pins into the fixing holes (pins are not shown in the diagram) to complete the truss construction.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications made based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A modular, quick-assembly truss with adjustable dimensions, comprising a fixed main beam and telescopic auxiliary beams, characterized in that: Both the fixed main beam and the telescopic auxiliary beam are prism tubes. The telescopic auxiliary beam is fitted inside the fixed main beam and can extend and retract. One fixed main beam and the telescopic auxiliary beam fitted inside it constitute a unit beam frame. Four unit beam frames are arranged in a square pattern with spacing between them in the upper, lower and left, right. Two unit beam frames on the upper and lower horizontal planes are connected together by a horizontal plate, and two unit beam frames on the front and rear vertical planes are connected together by a herringbone bracket and a wooden bracket.

2. The adjustable-size, quick-assembly truss according to claim 1, characterized in that: The upper and lower end faces of the fixed main beam and the telescopic auxiliary beam are respectively provided with lock-shaped positioning holes and square insertion holes at intervals. The front and rear end faces of the fixed main beam and the telescopic auxiliary beam are respectively provided with connecting holes at intervals. The upper end face of the fixed main beam is provided with a hanging lug in the middle.

3. The adjustable-size, quick-assembly truss according to claim 2, characterized in that: The wooden-shaped bracket includes a central support rod and two tension rods on both sides. The upper ends of the two tension rods and the support rod are hinged together and inserted into the square insertion hole on the lower end face of the upper fixed main beam, and then connected by bolts or pins passing through the connecting hole of the fixed main beam. A tension sleeve is sleeved on the lower end of the tension rod, and the two are slidably connected and equipped with a length adjustment mechanism. A ball head is provided on the lower end of the tension sleeve. A support sleeve is sleeved on the lower end of the support rod, and the two are slidably connected and equipped with a length adjustment mechanism. A support seat is provided on the lower end of the support sleeve. The support seat is connected to the lug on the upper end face of the lower fixed main beam. The ball head is inserted into the locking positioning hole on the upper end face of the lower fixed main beam.

4. The adjustable-size, quick-assembly truss according to claim 2, characterized in that: The herringbone bracket includes a tension rod and a pressure rod. The upper ends of the tension rod and the pressure rod are hinged together and inserted into the square insertion hole on the lower end face of the upper fixed main beam or telescopic auxiliary beam, and then connected by bolts or pins passing through the connecting hole of the fixed main beam. The lower end of the tension rod is fitted with a tension sleeve rod, and the two are slidably connected and equipped with a length adjustment mechanism. The lower end of the tension sleeve rod is provided with a ball head. The lower end of the pressure rod is fitted with a pressure sleeve rod, and the two are slidably connected and equipped with a length adjustment mechanism. The lower end of the pressure sleeve rod is provided with a groove. The lower ends of the tension sleeve rod and the pressure sleeve rod are respectively inserted into the locking positioning hole on the upper end face of the lower fixed main beam or telescopic auxiliary beam. Furthermore, the pressure rod and tension rod of two adjacent herringbone brackets are used in conjunction.

5. The adjustable-size, quick-assembly truss according to claim 1, characterized in that: The fixed main beam has two lugs, which are parallel and spaced apart, and a connecting hole is provided through the lug for easy connection.

6. The adjustable-size, quick-assembly truss according to claim 1, characterized in that: The horizontal plate includes a connecting plate and a clamping plate. Two clamping plates are respectively provided at both ends of the connecting plate. A horizontal connecting hole is provided through the clamping plate. The width between the two clamping plates is adapted to the width of the fixed main beam or the telescopic auxiliary beam. The length of the connecting plate is adapted to the width between the two fixed main beams or the telescopic auxiliary beams.

7. The adjustable-size, quick-assembly truss according to claim 1, characterized in that: The prism tube can be a rectangular prism tube, a square prism tube, or a regular hexagonal prism tube, depending on the need.

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