CN220078327U - Gravity guide type rooting device for truss girder - Google Patents

Abstract

The utility model discloses a gravity guide type rooting device for a truss girder, which comprises a bracket outer frame, a suspender component and a buckle component, wherein the bracket outer frame is detachably hung at the bottom end of the truss girder and is clamped with the bottom end of the truss girder through two buckle components, and the suspender component is telescopically arranged at the bottom of the bracket outer frame; the support frame comprises a first frame, a second frame and a first elastic element, wherein the first frame and the second frame are arranged in a mirror image mode, the bottom ends of the first frame and the second frame are rotatably connected, and the middle part of the first frame and the middle part of the second frame are elastically connected through the first elastic element; the boom assembly includes a boom, a boom connector, a first pull rod, and a second pull rod. The rooting device replaces the traditional large transfer equipment to transfer, so that the construction process is more flexible, the device also has the function of a temporary fixing point, the construction steps of overhead operation are simplified, the device can be reused, and the economic performance is improved.

Description

Gravity guide type rooting device for truss girder

Technical Field

The utility model relates to the technical field of overhead operation, in particular to a gravity guide type rooting device for truss girders.

Background

In production workshops and construction sites, a large number of components or equipment need to be transported, and the traditional solution is to transport by means of large-scale transport equipment special for automobile cranes, travelling cranes and the like, but the mode is limited by objective conditions such as construction sites, whether the transport equipment is present or not and the like. In recent years, with the increasing production of steel in China, the cross pipe truss is increasingly widely used, and the cross pipe truss occupies a larger proportion in the building, and is widely applied to industrial equipment platform production lines, logistics storage, public building gymnasiums, business meetings, high-speed rail platforms, subway platforms, high-rise business buildings and the like in industries such as industrial plants, automobiles and the like. The intersecting pipe truss structure also makes a major breakthrough, and the maximum advantage of the structure is that the functional requirement, the sensory requirement and the economic benefit requirement of people on a building can be perfectly combined together. The main truss and the secondary truss in the intersecting pipe truss structure are generally connected by adopting intersecting points, in the installation process, the main truss is installed firstly, then the secondary truss is installed, and as the boundary line of the end part of the secondary truss is an intersecting line, the secondary truss protrudes up and down and is concave in the middle, the secondary truss is difficult to install in place, and accurate butt joint between the secondary truss and the main truss is difficult to realize. Therefore, there is a need for a handling device that is not limited in the transportation at the job site to overcome the drawbacks of the prior art, but which also overcomes the temporary fixed installation problems of trusses or other pipes and equipment at the job site.

The utility model patent with the application number of CN201110389585.7 discloses a novel rail wagon center sill lifting appliance, which comprises a supporting seat, a main girder, a lifting hook and a limiting mechanism fixedly connected to the supporting seat, wherein the main girder moves in a limiting groove of the limiting mechanism; the lifting hook is arranged on the supporting seat through a lever mechanism, and one end of the lifting hook is connected with the movable main beam to realize opening and closing through the lever mechanism. But the device is used as a lifting appliance, so that the transferring equipment is still needed in the transferring process.

The utility model with the application number of CN201910487821.5 discloses a secondary truss installation method and a temporary fixing device thereof, wherein the method comprises the following steps: a. manufacturing a reserved bracket; b. integrally leveling the main truss; c. marking the design position of the reserved bracket; d. reserving bracket positioning welding; e. the whole main truss is hoisted; f. installing a temporary fixing device; g. completing the positioning and butt joint of the whole body formed by the secondary truss and the temporary fixing device; h. welding the secondary truss and the reserved bracket; i. and removing the temporary fixing device. The device comprises an upper fixedly connected bottom plate and a lower fixedly connected bottom plate, wherein two upper limiting support plates are arranged at the bottom of the upper fixedly connected bottom plate, and two lower limiting support plates are arranged at the top of the lower fixedly connected bottom plate. The utility model can fully play the role of the reserved bracket, improve the alignment accuracy and convenience between the butt joint of the primary truss and the secondary truss in the intersecting pipe truss and improve the welding quality and the installation efficiency.

Disclosure of Invention

The utility model aims to provide a gravity guide type rooting device for truss girders, which has the functions of transportation and temporary fixation and solves the problems of limited transportation and temporary fixation in the process of overhead operation.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a be used for truss girder department gravity guidance formula rooting means, includes support frame, jib subassembly and buckle subassembly, the support frame can dismantle hang in truss girder bottom, and through two buckle subassembly and truss girder bottom chucking, the scalable setting of jib subassembly is in support frame bottom is provided with the suspension loop in boom subassembly bottom integration, through suspension loop demountable installation safety belt or lifting device.

Preferably, the support outer frame comprises a first frame, a second frame and a first elastic element, wherein the first frame and the second frame are arranged in a mirror image mode, the bottom ends of the first frame and the second frame are rotatably connected, and the middle part of the first frame and the middle part of the second frame are elastically connected through the first elastic element; the first frame is of a four-side opening structure which is formed by integrally bending flat steel, and sequentially comprises a first top end plane, a first upper side vertical surface, a first lower side inclined surface and a first bottom end plane from top to bottom, wherein a first serrated surface is arranged on the first upper side vertical surface, and a first semicircular or rectangular opening is formed in the middle of the end surface of the first bottom end plane; the second frame is also a four-side opening structure which is formed by integrally bending flat steel and sequentially comprises a second top end plane, a second upper side vertical surface, a second lower side inclined surface and a second bottom end plane from top to bottom, wherein a second serrated surface is arranged on the second upper side vertical surface, and a second semicircular or rectangular opening is formed in the middle of the end surface of the second bottom end plane.

Preferably, one end of the first elastic element is fixedly installed on the first upper vertical surface, and the other end of the first elastic element is fixedly installed on the second upper vertical surface.

Preferably, the boom assembly comprises a boom, a boom connecting piece, a first pull rod and a second pull rod, wherein the first pull rod, the second pull rod and the boom connecting piece are arranged inside the support frame, and the boom shuttles at the center position of the bottom end of the support frame; one end of the first pull rod and one end of the second pull rod are hinged to the same position on the suspender connecting piece, and the top end of the suspender is fixedly arranged at the bottom end of the suspender connecting piece.

Preferably, the end face of the first bottom end plane is provided with two first hinge positions, the end face of the second bottom end plane is provided with two second hinge positions, the first hinge positions and the second hinge positions are connected through a double-head anchor bolt, a first opening of the first bottom end plane and a second opening of the second bottom end plane which are connected are spliced into a round hole or a large rectangular hole, and the suspender shuttles in the round hole or the large rectangular hole.

Preferably, the suspender connecting piece is a U-shaped groove structure made of flat steel, through holes are formed in positions corresponding to two side walls of the U-shaped groove structure, and through holes are formed in the center of the bottom surface of the U-shaped groove structure.

Preferably, the shape and the size of the first pull rod and the shape and the size of the second pull rod main structure are consistent, the rectangular groove is formed in the middle of the bottom end of the long plate-shaped structure made of flat steel, two third hinging positions are arranged at one end of the rectangular groove of the first pull rod, a fifth hinging position is arranged at the other end of the rectangular groove of the second pull rod, two fourth hinging positions are arranged at one end of the rectangular groove of the second pull rod, a sixth hinging position is hinged at the other end of the rectangular groove of the second pull rod, and the third hinging positions and the fourth hinging positions are connected at through holes on the side wall of the suspender connecting piece through double-head anchors.

Preferably, at least one hinge seat is provided on the first upper vertical surface and the second upper vertical surface, the fifth hinge position is hinged in the hinge seat provided on the first upper vertical surface through a double-head anchor bolt, the sixth hinge position is hinged in the hinge seat provided on the second upper vertical surface through a double-head anchor bolt, and the hinge seat is provided below the first elastic element mounting point.

Preferably, the buckle subassembly includes buckle seat, a plurality of second elastic element and gasket, the buckle seat is formed by curb plate and roof perpendicular setting the roof side be provided with the sawtooth, with set up the sawtooth of the inside both sides of support frame meshes mutually, curb plate major structure is the L template, evenly is provided with a plurality of on the bottom plate of this L template second elastic element, the gasket is connected a plurality of second elastic element's one end.

Preferably, the gasket and the top plate are clamped together under the action of elastic force of a plurality of second elastic elements and are arranged on the first upper vertical surface or the second upper vertical surface, and the first serrated surface and the second serrated surface are meshed with the serrations arranged on the side surface of the top plate.

According to the utility model, the support outer frame is detachably hung at the bottom end of the truss girder, so that the direct welding of the rooting device and the truss girder is avoided, the installation process of the rooting device is simplified, the rooting device can be repeatedly used, and the economic benefit is improved.

The rooting device utilizes the guiding of the weight of the equipment pipeline or the hanging object body thereof to decompose the gravity of the hanging object to the first frame and the second frame, so that the first frame and the second frame are tightened inwards, the rooting device is firmly fixed on the truss girder, and the outer frame of the bracket is firmly installed and has strong vibration resistance.

The first elastic element is arranged in the outer frame of the bracket, so that the rooting device arranged on the truss girder is not easy to fall off before the lifting object is lifted and connected on the rooting device, and the safety of the rooting device is improved.

The rooting device uses the buckle component to fix the outer frame of the bracket and the truss girder, so that the rooting device is more reliably fixed.

The hinging among the rooting device components is realized through the double-head anchor bolts, so that the rooting device is not easy to fall off after connection, has good vibration prevention effect and increases the safety performance.

The rooting device replaces the traditional large transfer equipment to transfer, so that the construction process is more flexible, the device also has the function of a temporary fixing point, the construction steps of overhead operation are simplified, the device can be reused, and the economic performance is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a front view of a first frame structure of the present utility model;

FIG. 3 is a partially enlarged schematic illustration of the present utility model at I;

FIG. 4 is a left side view of the first frame structure of the present utility model;

FIG. 5 is a front view of a second frame structure of the present utility model;

FIG. 6 is a partially enlarged schematic illustration of the present utility model at II;

FIG. 7 is a right side view of a second frame structure of the present utility model;

FIG. 8 is a schematic view of a boom attachment of the present utility model;

FIG. 9 is a front view of a first tie rod of the present utility model;

FIG. 10 is a right side view of the first tie rod of the present utility model;

FIG. 11 is a front view of a second tie rod of the present utility model;

FIG. 12 is a right side view of the second tie rod of the present utility model;

FIG. 13 is a schematic view of a buckle assembly according to the present utility model;

FIG. 14 is a schematic view of the use structure of the present utility model as a temporary fixation point;

FIG. 15 is a schematic view of another use configuration of the present utility model as a temporary fixation point;

FIG. 16 is a schematic view of the present utility model in use as a lifting point;

in the figure: 1. a support frame; 2. a boom assembly; 3. a clasp assembly; 4. truss girder; 5. hanging objects; 6. a hanging ring; 10. a first frame; 11. a second frame; 12. a first elastic element; 13. a hinge base; 100. a first top plane; 101. a first upper vertical surface; 102. a first underside slope; 103. a first bottom end plane; 104. a first serrated surface; 105. a first hinge location; 110. a second top plane; 111. a second upper vertical surface; 112. a second underside slope; 113. a second bottom end plane; 114. a second serrated surface; 115. a second hinge position; 20. a boom; 21. a boom connection; 22. a first pull rod; 23. a second pull rod; 30. a clamping seat; 31. a second elastic element; 32. a gasket; 220. a third hinge position; 221. a fifth hinge position; 230. a fourth hinge position; 231. a sixth hinge position; 300. a side plate; 301. and a top plate.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

the gravity guiding rooting device for the truss girder comprises a support outer frame 1, a suspender component 2 and a buckle component 3, wherein the support outer frame 1 is detachably hung at the bottom end of the truss girder 4 and is tightly clamped with the bottom end of the truss girder 4 through the two buckle components 3, the suspender component 2 is telescopically arranged at the bottom of the support outer frame 1, a hanging ring 6 is integrally arranged at the bottom end of the suspender component 2, and a safety belt or lifting equipment is detachably installed through the hanging ring 6. In this example, the truss girder 4 is made of i-steel.

The support frame 1 comprises a first frame 10, a second frame 11 and a first elastic element 12, wherein the first frame 10 and the second frame 11 are arranged in a mirror image mode, the bottom ends of the first frame 10 and the second frame 11 are rotatably connected, the middle part of the first frame 10 and the middle part of the second frame 11 are elastically connected through the first elastic element 12, and a pre-tightening spring is specifically selected for the first elastic element 12.

As shown in fig. 2, 3 and 4, the first frame 10 is a four-side opening structure formed by integrally bending flat steel, and sequentially comprises a first top end plane 100, a first upper vertical surface 101, a first lower inclined surface 102 and a first bottom end plane 103 from top to bottom, wherein a first serrated surface 104 is arranged on the first upper vertical surface 101, and a first semicircular or rectangular opening is formed in the middle of the end surface of the first bottom end plane 103.

As shown in fig. 5, 6 and 7, the second frame 11 is also a four-side opening structure formed by integrally bending flat steel, and sequentially comprises a second top end plane 110, a second upper vertical surface 111, a second lower inclined surface 112 and a second bottom end plane 113 from top to bottom, wherein a second serrated surface 114 is arranged on the second upper vertical surface 111, and a second semicircular or rectangular opening is formed in the middle of the end surface of the second bottom end plane 113. In this example, the flat steel is in particular galvanized steel.

Two first hinge positions 105 are arranged at the end face of the first bottom end plane 103, two second hinge positions 115 are arranged at the end face of the second bottom end plane 113, the first hinge positions 105 and the second hinge positions 115 are connected through double-head anchors, the first open hole of the connected first bottom end plane 103 and the second open hole of the second bottom end plane 113 are spliced into a round hole or a large rectangular hole, and the suspender 20 shuttles in the round hole or the large rectangular hole. In this example, the first elastic member 12 is fixedly mounted at one end on the first upper vertical surface 101 and at the other end on the second upper vertical surface 111.

The boom assembly 2 includes a boom 20, a boom connector 21, a first pull rod 22 and a second pull rod 23, the first pull rod 22, the second pull rod 23 and the boom connector 21 are disposed inside the frame 1, and the boom 20 shuttles at a central position of a bottom end of the frame 1.

One end of the first pull rod 22 and one end of the second pull rod 23 are hinged at the same position on the boom connecting piece 21, and the top end of the boom 20 is fixedly arranged at the bottom end of the boom connecting piece 21. Referring to fig. 8, the hanger bar connecting member 21 is a U-shaped groove structure made of flat steel, through holes are formed in positions corresponding to two side walls of the U-shaped groove structure, and through holes are formed in a central position of a bottom surface of the U-shaped groove structure.

As shown in fig. 9, 10, 11 and 12, the main structures of the first pull rod 22 and the second pull rod 23 are identical in shape and size, and are long plate structures made of flat steel, a rectangular groove is formed in the middle of the bottom end, two third hinge positions 220 are arranged at one end of the rectangular groove of the first pull rod 22, a fifth hinge position 221 is arranged at the other end of the rectangular groove of the second pull rod 23, two fourth hinge positions 230 are arranged at one end of the rectangular groove of the second pull rod 23, a sixth hinge position 231 is hinged at the other end of the rectangular groove, and the third hinge positions 220 and the fourth hinge positions 230 are connected at through holes on the side walls of the suspender connecting pieces 21 through double-head anchors. At least one hinge seat 13 is provided on both the first upper upright 101 and the second upper upright 111, the hinge seat 13 being arranged below the mounting point of the first elastic element 12. The fifth hinge position 221 is hinged in the hinge seat 13 provided on the first upper vertical surface 101 by a double-headed anchor, and the sixth hinge position 231 is hinged in the hinge seat 13 provided on the second upper vertical surface 111 by a double-headed anchor.

As shown in fig. 13, the buckle assembly 3 includes a buckle seat 30, a plurality of second elastic elements 31 and a spacer 32, the buckle seat 30 is vertically formed by a side plate 300 and a top plate 301, the side surface of the top plate 301 is provided with saw teeth, which are engaged with saw teeth provided on both sides of the inside of the frame 1, in this example, the first upper vertical surface 101 is provided with saw teeth, and the second upper vertical surface 111 is also provided with saw teeth. The main structure of the side plate 300 is an L-shaped plate, a plurality of second elastic elements 31 are uniformly arranged on the bottom plate of the L-shaped plate, the gasket 32 is connected to one end of the second elastic elements 31, and the second elastic elements 31 are specifically compression springs. In this example, the gasket 32 is made of polytetrafluoroethylene. The spacer 32 is clamped together with the top plate 301 by the elastic force of the plurality of second elastic members 31 to be disposed on the first upper vertical surface 101 or the second upper vertical surface 111, and the first serrated surface 104 and the second serrated surface 114 are engaged with serrations disposed on the side surface of the top plate 301.

Working principle: the gravity guiding rooting device is firmly fixed on the truss girder 4 by utilizing the self weight of the equipment to be installed, the pipeline and other hanging objects 5 to be installed on the truss girder 4. Step one, the bracket outer frame 1 is opened, the first frame 10 and the second frame 11 are pulled out forcefully, at this time, the first elastic element 12 is pulled to stretch, and the first pull rod 22 and the second pull rod 23 are pulled out, and are in a straight state between the first frame 10 and the second frame 11, so that the suspender connecting piece 21 moves upwards, and the suspender 20 is driven to move upwards; step two, the outer frame 1 of the bracket is closed, after the truss girder 4 is sleeved in the first frame 10 through the opening part of the first frame 10 and the second frame 11 which are pulled apart, the first frame 10 and the second frame 11 are tightened along with the shrinkage of the first elastic element 12, the first top end plane 100 and the second top end plane 110 are clamped on the truss girder 4 after tightening, meanwhile, due to the tightening of the first frame 10 and the second frame 11, the first pull rod 22 and the second pull rod 23 are also folded back to an included angle of 120 degrees along with the tightening of the first frame 10 and the second frame 11, and at the moment, the suspender connecting piece 21 moves downwards, and then the suspender 20 is driven to move downwards; step three, the bracket outer frame 1 is fixed, then the side plate 300 is pressed, at the moment, the second elastic element 31 is pressed and contracted, the distance between the gasket 32 and the top plate 301 is increased, at the moment, the clamping seat 30 is pushed to the lower part of the truss girder 4, the gasket 32 is attached to the outer side surface of the first upper vertical surface 101 or the outer side surface of the second upper vertical surface 111 during pushing, because the gasket 32 is made of polytetrafluoroethylene, the sliding is more labor-saving, the clamping seat 30 is pushed to the lower part of the truss girder 4, the side plate 300 is released, under the action of the second elastic element 31, the first serrated surface 104 and the second serrated surface 114 are meshed with the serrated teeth arranged on the side surface of the top plate 301, at the moment, the clamping assembly 3 clamps the bracket outer frame 1 and the truss girder 4 together tightly, and the gravity-guided rooting device is prevented from being displaced up and down; step four, the hanging objects 5 are temporarily fixed, as shown in fig. 14 and 15, when in high-altitude operation, an operator ties the safety belt 7 on the hanging ring 6 on a high-altitude platform, equipment, a pipeline or other hanging objects 5 are installed at a through-hanging port of the safety belt 7, one hanging object 5 can be temporarily fixed through one or more rooting devices, the rooting devices can be firmly fixed on the truss girder 4 by means of the self weight of the hanging objects 5, when the temporarily fixed hanging objects 5 are required to be shifted, the buckle assembly 3 is loosened, the bracket outer frame 1 is slid along the direction of the truss girder 4, and then the hanging objects 5 are driven to shift; step five, the lifting object 5 is lifted, as shown in fig. 16, after the lifting device 8 is installed on the lifting ring 6, the lifting object 5 is hung on the hanging end of the lifting device 8, and the lifting object 5 is lifted to a proper position or transferred through the lifting device 8.

The above embodiments are only a few descriptions of the inventive concept and implementation, and are not limited thereto, and the technical solutions without substantial transformation remain within the scope of protection under the inventive concept.

Claims (10)

1. A be used for truss girder department gravity guide formula rooting means which characterized in that: including support frame (1), jib subassembly (2) and buckle subassembly (3), support frame (1) can dismantle hang in truss girder (4) bottom, and through two buckle subassembly (3) and truss girder (4) bottom chucking, jib subassembly (2) scalable setting is in support frame (1) bottom is provided with in jib subassembly (2) bottom integration and hangs and connect ring (6), can dismantle installation safety belt (7) or lifting device (8) through hanging and connect ring (6).

2. The gravity-guided rooting device for truss girders according to claim 1, wherein: the support outer frame (1) comprises a first frame (10), a second frame (11) and a first elastic element (12), wherein the first frame (10) and the second frame (11) are arranged in a mirror image mode, the bottom ends of the first frame and the second frame are rotatably connected, and the middle part of the first frame (10) and the middle part of the second frame (11) are elastically connected through the first elastic element (12); the first frame (10) is of a four-side opening structure which is formed by integrally bending flat steel, and sequentially comprises a first top end plane (100), a first upper vertical surface (101), a first lower inclined surface (102) and a first bottom end plane (103) from top to bottom, wherein a first serrated surface (104) is arranged on the first upper vertical surface (101), and a first semicircular or rectangular opening is formed in the middle of the end surface of the first bottom end plane (103); the second frame (11) is also a four-side opening structure which is formed by integrally bending flat steel, and sequentially comprises a second top end plane (110), a second upper side vertical surface (111), a second lower side inclined surface (112) and a second bottom end plane (113) from top to bottom, wherein a second serrated surface (114) is arranged on the second upper side vertical surface (111), and a second opening which is semicircular or rectangular is formed in the middle of the end surface of the second bottom end plane (113).

3. The gravity-guided rooting device for truss girders according to claim 2, wherein: one end of the first elastic element (12) is fixedly arranged on the first upper vertical surface (101), and the other end of the first elastic element is fixedly arranged on the second upper vertical surface (111).

4. The gravity-guided rooting device for truss girders according to claim 2, wherein: the boom assembly (2) comprises a boom (20), a boom connecting piece (21), a first pull rod (22) and a second pull rod (23), wherein the first pull rod (22), the second pull rod (23) and the boom connecting piece (21) are arranged inside the support outer frame (1), and the boom (20) shuttles at the central position of the bottom end of the support outer frame (1); one end of the first pull rod (22) and one end of the second pull rod (23) are hinged to the same position on the suspender connecting piece (21), and the top end of the suspender (20) is fixedly arranged at the bottom end of the suspender connecting piece (21).

5. The gravity-guided rooting device for truss girders according to claim 4, wherein: the end face of the first bottom end plane (103) is provided with two first hinge positions (105), the end face of the second bottom end plane (113) is provided with two second hinge positions (115), the first hinge positions (105) are connected with the second hinge positions (115) through double-head anchors, a round hole or a large rectangular hole is spliced by a first opening of the connected first bottom end plane (103) and a second opening of the second bottom end plane (113), and the suspender (20) shuttles in the round hole or the large rectangular hole.

6. The gravity-guided rooting device for truss girders according to claim 4, wherein: the suspender connecting piece (21) is a U-shaped groove structure made of flat steel, through holes are formed in positions corresponding to the two side walls of the U-shaped groove structure, and through holes are formed in the center of the bottom surface of the U-shaped groove structure.

7. The gravity-guided rooting device for truss girders according to claim 4, wherein: the shape and the size of the main structure of the first pull rod (22) and the second pull rod (23) are consistent, the rectangular groove is formed in the middle of the bottom end of the rectangular groove, two third hinging positions (220) are arranged at one end of the rectangular groove of the first pull rod (22), a fifth hinging position (221) is arranged at the other end of the rectangular groove of the second pull rod (23), two fourth hinging positions (230) are arranged at one end of the rectangular groove of the second pull rod (23), a sixth hinging position (231) is hinged at the other end of the rectangular groove, and the third hinging positions (220) and the fourth hinging positions (230) are connected at through holes on the side wall of the suspender connecting piece (21) through double-head anchors.

8. The gravity-guided rooting device for truss girders according to claim 7, wherein: at least one hinging seat (13) is arranged on the first upper vertical surface (101) and the second upper vertical surface (111), a fifth hinging position (221) is hinged in the hinging seat (13) arranged on the first upper vertical surface (101) through a double-head anchor bolt, a sixth hinging position (231) is hinged in the hinging seat (13) arranged on the second upper vertical surface (111) through a double-head anchor bolt, and the hinging seat (13) is arranged below the mounting point of the first elastic element (12).

9. The gravity-guided rooting device for truss girders according to claim 2, wherein: the buckle subassembly (3) is including buckle seat (30), a plurality of second elastic element (31) and gasket (32), buckle seat (30) are formed by curb plate (300) and roof (301) perpendicular setting roof (301) side be provided with the sawtooth, with set up the sawtooth of the inside both sides of support frame (1) meshes mutually, curb plate (300) major structure is the L template, evenly is provided with a plurality of on the bottom plate of this L template second elastic element (31), gasket (32) are connected a plurality of the one end of second elastic element (31).

10. The gravity-guided rooting device for truss girders according to claim 9, wherein: the gasket (32) and the top plate (301) are clamped and arranged on the first upper vertical surface (101) or the second upper vertical surface (111) under the action of the elastic force of the second elastic elements (31), and the first serrated surface (104) and the second serrated surface (114) are meshed with the serrations arranged on the side surface of the top plate (301).