Crawler-type foldable portal

Abstract

The invention relates to the technical field of drilling pile construction tools, in particular to a crawler-type foldable portal frame. The portal frame comprises a portal frame body, and the portal frame body comprises a mounting frame used for lifting the reinforcement cage and a walking device used for consigning the mounting frame. The walking device comprises a supporting plate, crawler wheels are arranged below the supporting plate, and a diesel engine used for driving the crawler wheels to rotate is arranged above the supporting plate. A first hinge block is arranged at one end of the supporting plate, and the first hinge block is hinged to the mounting frame; a winch is further arranged above the supporting plate and used for pulling the mounting frame to rotate along the hinged position. The overall length of the portal can be reduced, and the portal can be conveniently transferred in a small construction site; compared with the prior art, the portal frame can be transferred without the help of a trailer, can be folded to reduce the body length and can be transferred in a construction site, and the construction efficiency of constructors is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bored pile construction tools, in particular to a crawler-type foldable portal frame. Background Art

[0002] During construction, construction workers first need to cast bored piles at the construction site. Before casting bored piles, it is necessary to drill holes, then install sleeves and steel cages in the holes, and finally cast concrete to form bored piles. At present, when installing steel cages, most of them use portal frames for auxiliary installation. The portal frame includes a base frame and a support frame perpendicular to the base frame. When using the portal frame, construction workers first transport the portal frame to the drilling site by trailer, then turn the lifting rope over the top of the support frame, connect one end of the lifting rope to the winch, and the other end to the steel cage, and lower the steel cage into the drilling hole by the winch. Since the current gantry cannot be moved and needs to be moved with the help of a trailer, when the construction site is small, the trailer occupies a large area, making it inconvenient to move the trailer and affecting construction efficiency. Summary of the invention

[0003] The invention provides a crawler-type foldable door frame, which can overcome certain defects of the prior art.

[0004] A crawler-type foldable gantry according to the present invention comprises: a gantry body, the gantry body comprises a mounting frame for hanging a steel cage, and a traveling device for transporting the mounting frame; the traveling device comprises a support plate, track wheels are arranged below the support plate, and a diesel engine for driving the track wheels to rotate is arranged above the support plate; a first hinge block is arranged at one end of the support plate, and the first hinge block is hinged to the mounting frame; a winch is also arranged above the support plate, and the winch is used to pull the mounting frame to rotate along the hinge.

[0005] With the present invention, when using the gantry, the construction workers first drive the crawler wheels to rotate through the diesel engine to move the walking device to the drilling location, and then start the winch, which rotates to release the rope. At this time, the mounting frame rotates along the first hinge block and the hinged location of the mounting frame under the action of its own gravity until the bottom frame of the mounting frame contacts the bottom surface. At this time, the mounting frame stands at the drilling opening. Then the construction workers release one end of the rope tied to the mounting frame, and then turn the rope over the top of the mounting frame. After the rope turns over the top of the mounting frame, it is connected to the hook. Then, when using the gantry, the steel cage is hung by the hook, and then the rope is released by rotating the winch to put the steel cage in. In the drill hole; when it is necessary to pour other drill holes, it is only necessary to start the diesel engine to move the walking device to the drilling position; when the construction site is small and the walking device drags the mounting frame, which is large and inconvenient to turn, it is only necessary to hook the mounting frame with the hook at one end of the rope, and then start the winch to reel in the rope. The rope pulls the mounting frame to rotate along the hinge until the mounting frame is flat on the support plate, thereby completing the folding of the mounting frame, reducing the overall length of the gantry, and facilitating transportation in a smaller construction site; compared with the prior art, the gantry does not need to be transported by a trailer, and can be folded to reduce the body length and transported at the construction site, thereby improving the construction efficiency of the construction personnel.

[0006] Through the coordination of the mounting frame and the winch, construction workers do not need to use a crane when installing the steel cage. The long swing arm of the crane and the wide swing arm range may easily lead to difficulties in working in a narrow space.

[0007] Preferably, the mounting frame includes a rectangular bottom frame, with two columns arranged perpendicular to the bottom frame above the bottom frame; an installation cavity arranged along the length direction of the column is provided inside the column, and an oil cylinder is provided at the bottom of the installation cavity; the piston rod of the oil cylinder is arranged along the length direction of the installation cavity and extends out of the installation cavity; a cross bar is provided above the column, with both ends respectively connected to the two piston rods.

[0008] With the present invention, the construction workers turn the rope over the crossbar, and then start the oil cylinder, and the piston rod of the oil cylinder pushes the crossbar up or down, so that the distance between the crossbar and the drill opening can be adjusted, so that the hook under the crossbar can pull the steel cages of different lengths to be vertical to the drill opening, so that the mounting frame can adapt to steel cages of different lengths; When the piston rod of the oil cylinder pulls the cross bar down to contact with the column, the height and volume of the mounting frame are minimized, thereby facilitating the transport of the mounting frame by the walking device.

[0009] Preferably, the columns are provided with inclined arrangements on both sides, and are used to connect the columns with the bottom frame, respectively, and a first support rod and a second support rod are provided; the first support rod is provided with a second hinge block, and the second hinge block is hinged to the first hinge block.

[0010] Through the present invention, both ends of the first support rod and the second support rod are welded to the column and the bottom frame respectively, and the support of the first support rod and the second support rod to the column and the bottom frame further improves the overall structural strength of the mounting frame.

[0011] Preferably, two first guide plates are arranged along the length direction of the column on both sides of the column, and the two first guide plates and the column together form a guide groove; two second guide plates are arranged along the length direction of the column and extend into the guide groove at both ends of the cross bar.

[0012] Through the present invention, when the piston rod of the oil cylinder pushes the cross bar up or pulls the cross bar down, the second guide plates at both ends of the cross bar will move along the guide grooves on the columns. At this time, the two first guide plates will limit the second guide plates, thereby further improving the stability of the cross bar when moving.

[0013] Preferably, a third hinge block is provided on the side wall of the column, and a fourth hinge block is provided above the support plate; an inclined telescopic rod and a sleeve are provided between the third hinge block and the fourth hinge block; one end of the telescopic rod is hinged to the third hinge block, and one end of the sleeve is hinged to the fourth hinge block; the end of the telescopic rod away from the hinge extends into the sleeve and can move axially along the sleeve.

[0014] Through the present invention, when the winch reels in the rope to pull the mounting frame onto the support plate, and when the winch loosens the rope to lower the mounting frame from the support plate, the telescopic rod moves in the sleeve, and the sleeve limits the telescopic rod, thereby making the mounting frame more stable when rotating along the first hinge block.

[0015] Preferably, two vertical plates arranged perpendicular to the horizontal bar are provided above the horizontal bar, and a rotating column for connecting the two vertical plates is provided between the two vertical plates.

[0016] With the present invention, construction workers turn the rope over the rotating column, and the two sides of the rope are blocked by the vertical plates, so that when the rope is used to suspend the steel cage, the rope shakes, causing the steel cage to slide and deviate when entering the drill hole, affecting the quality of the pile foundation after pouring; when placing the mounting frame, the construction workers align the rotating column with the center of the drill hole, thereby ensuring that when the rope is used to suspend the steel cage, the center of the steel cage coincides with the center of the drill hole.

[0017] Preferably, first jacks are provided at the four corners of the bottom frame.

[0018] Through the present invention, when the winch places the mounting frame on the bottom surface, the construction personnel measure the height of the first jacks at the four corners of the bottom frame of the step, and then observe the level meter set on the bottom frame to make the bottom frame parallel to the bottom surface, ensuring that the mounting frame does not tilt and affect the winch to lift the steel cage.

[0019] Preferably, the support plate is rectangular in shape, and second jacks are provided at the four corners of the support plate.

[0020] Through the present invention, construction workers adjust the support heights of the second jacks at the four corners of the support plate to make the support plate parallel to the ground. Through the second jack and the first jack, the gantry body can be stably stopped on the ground, thereby adapting to the rugged construction ground.

[0021] Preferably, a third support rod is provided at one end of the support plate away from the mounting frame and is arranged perpendicular to the support plate; the third support rod is U-shaped.

[0022] Through the present invention, the two ends of the third support rod are welded to the support plate; when the winch reels in the rope to place the mounting frame flat on the support plate, the third support rod supports the top of the mounting frame, so that the mounting frame can be placed stably on the support plate.

[0023] Preferably, a through hole is provided at the upper end of the column for the piston rod of the oil cylinder to pass through.

[0024] Through the present invention, the through hole limits the piston rod of the oil cylinder and allows the piston rod to extend out of the installation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main body of the portal frame in Example 1.

[0026] Figure 2 This is a schematic diagram of the mounting frame in Example 1.

[0027] Figure 3 This is an exploded view of the mounting frame in Example 1.

[0028] Figure 4 Schematic diagram of the second guide plate in Example 1.

[0029] Figure 5 Schematic diagram of the through hole in Example 1.

[0030] Figure 6 This is a cross-sectional view of the mounting frame in Example 1.

[0031] Figure 7 Schematic diagram of the walking device in Example 1. DETAILED DESCRIPTION

[0032] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the embodiments. It should be understood that the embodiments are only for explaining the present invention and are not intended to limit it.

[0033] Example 1 like Figure 1-7As shown, this embodiment provides a crawler-type foldable gantry, including a gantry body 100, the gantry body 100 includes a mounting frame 110 for hanging a steel cage, and a walking device 120 for transporting the mounting frame 110; the walking device 120 includes a support plate 190, a crawler wheel 101 is provided below the support plate 190, and a diesel engine 160 for driving the crawler wheel 101 to rotate is provided above the support plate 190; a first hinge block 720 is provided at one end of the support plate 190, and the first hinge block 720 is hinged to the mounting frame 110; a winch 150 is also provided above the support plate 190, and the winch 150 is used to pull the mounting frame 110 to rotate along the hinge.

[0034] Through this embodiment, when using the gantry, the construction personnel first drive the crawler wheel 101 to rotate through the diesel engine 160 to move the walking device 120 to the drilling location, and then start the winch 150. The winch 150 rotates to release the rope. At this time, the mounting frame 110 rotates along the first hinge block 720 and the hinged portion of the mounting frame 110 under the action of its own gravity until the bottom frame 270 of the mounting frame 110 contacts the bottom surface. At this time, the mounting frame 110 stands at the drilling opening. Then the construction personnel release one end of the rope tied to the mounting frame 110, and then turn the rope over the top of the mounting frame 110. After the rope turns over the top of the mounting frame 110, it is connected to the hook. Then, when using the gantry, the steel cage is hung by the hook, and then the winch 150 rotates to release the steel cage. The rope is used to place the steel cage into the drill hole; when other drill holes need to be poured, the diesel engine 160 only needs to be started to move the walking device 120 to the drilling position; when the construction site is small and the walking device 120 drags the mounting frame 110, which is large and inconvenient to turn, the hook at one end of the rope is only needed to hook the mounting frame 110, and then the winch 150 is started to reel in the rope. The rope pulls the mounting frame 110 to rotate along the hinge until the mounting frame 110 is placed flat on the support plate 190, thereby completing the folding of the mounting frame 110, reducing the overall length of the gantry, and facilitating transportation in a smaller construction site; compared with the prior art, the gantry does not need to be transported by a trailer, and can be folded to reduce the length and transported in the construction site, thereby improving the construction efficiency of the construction personnel.

[0035] Through the cooperation between the mounting frame 110 and the winch 150, when construction workers install the steel cage, there is no need to use a crane. The crane has a long swing arm, and the wide swing arm range may easily lead to difficulties in working in a narrow space.

[0036] In this embodiment, the mounting frame 110 includes a rectangular bottom frame 270, and two columns 240 are arranged perpendicular to the bottom frame 270 above the bottom frame 270; a mounting cavity 610 is arranged inside the column 240 along the length direction of the column 240, and a cylinder 350 is arranged at the bottom of the mounting cavity 610; the piston rod of the cylinder 350 is arranged along the length direction of the mounting cavity 610 and extends out of the mounting cavity 610; a cross bar 230 is provided above the column 240, and its two ends are respectively connected to the two piston rods.

[0037] Through this embodiment, the construction personnel turn the rope over the crossbar 230, and then start the oil cylinder 350, and the piston rod of the oil cylinder 350 pushes the crossbar 230 up or down, so that the distance between the crossbar 230 and the drill opening can be adjusted, so that the hook lowered by the crossbar 230 can pull the steel cages of different lengths to be vertical to the drill opening, so that the mounting frame 110 can adapt to steel cages of different lengths; When the piston rod of the oil cylinder 350 pulls the cross bar 230 down to contact the column 240 , the height and volume of the mounting frame 110 are minimized, thereby facilitating the transport of the mounting frame 110 by the walking device 120 .

[0038] In this embodiment, the columns 240 are provided with inclined settings on both sides, and are used to connect the columns 240 and the bottom frame 270 with the first support rod 250 and the second support rod 260; the first support rod 250 is provided with a second hinge block 340, and the second hinge block 340 is hinged to the first hinge block 720.

[0039] Through this embodiment, the two ends of the first support rod 250 and the second support rod 260 are respectively welded to the column 240 and the bottom frame 270. The support of the first support rod 250 and the second support rod 260 to the column 240 and the bottom frame 270 further improves the overall structural strength of the mounting frame 110.

[0040] In this embodiment, two first guide plates 310 are provided on both sides of the column 240 along the length direction of the column 240, and the two first guide plates 310 and the column 240 together constitute a guide groove 520; two second guide plates 360 are provided at both ends of the cross bar 230 along the length direction of the column 240 and extend into the guide groove 520.

[0041] Through this embodiment, when the piston rod of the cylinder 350 pushes the cross bar 230 up or pulls the cross bar 230 down, the second guide plates 360 at both ends of the cross bar 230 will move along the guide grooves 520 on the columns 240. At this time, the two first guide plates 310 will limit the second guide plates 360, thereby further improving the stability of the cross bar 230 during movement.

[0042] In this embodiment, a third hinge block 330 is provided on the side wall of the column 240, and a fourth hinge block 710 is provided above the support plate 190; an inclined telescopic rod 130 and a sleeve 140 are provided between the third hinge block 330 and the fourth hinge block 710; one end of the telescopic rod 130 is hinged to the third hinge block 330, and one end of the sleeve 140 is hinged to the fourth hinge block 710; the end of the telescopic rod 130 away from the hinge extends into the sleeve 140 and can move axially along the sleeve 140.

[0043] Through this embodiment, when the winch 150 reels in the rope to pull the mounting frame 110 onto the support plate 190, and when the winch 150 loosens the rope to lower the mounting frame 110 from the support plate 190, the telescopic rod 130 will move in the sleeve 140, and the sleeve 140 will limit the telescopic rod 130, so that the mounting frame 110 is more stable when rotating along the first hinge block 720.

[0044] In this embodiment, two vertical plates 210 arranged perpendicular to the horizontal bar 230 are provided above the horizontal bar 230 , and a rotating column 220 for connecting the two vertical plates 210 is provided between the two vertical plates 210 .

[0045] Through this embodiment, the construction workers turn the rope over the rotating column 220, and the two sides of the rope are blocked by the vertical plate 210, so that when the rope is used to suspend the steel cage, the rope shakes, causing the steel cage to slide and deviate when entering the borehole, affecting the quality of the pile foundation after pouring; when placing the mounting frame 110, the construction workers align the rotating column 220 with the center of the borehole, thereby ensuring that when the rope is used to suspend the steel cage, the center of the steel cage coincides with the center of the borehole.

[0046] In this embodiment, first jacks 280 are disposed at four corners of the bottom frame 270 .

[0047] Through this embodiment, when the winch 150 places the mounting frame 110 on the bottom surface, the construction personnel measure the height of the first jack 280 at the four corners of the step bottom frame 270, and then observe the level meter set on the bottom frame 270 to make the bottom frame 270 parallel to the bottom surface, ensuring that the mounting frame 110 does not tilt and affect the winch 150 to lift the steel cage.

[0048] In this embodiment, the support plate 190 is rectangular in shape, and the second jacks 180 are disposed at the four corners of the support plate 190 .

[0049] Through this embodiment, the construction personnel adjust the support height of the second jack 180 at the four corners of the support plate 190 so that the support plate 190 is parallel to the ground. Through the second jack 180 and the first jack 280, the gantry body 100 can be stably stopped on the ground, thereby adapting to the rugged construction ground.

[0050] In this embodiment, a third support rod 170 is disposed perpendicular to the support plate 190 at one end of the support plate 190 away from the mounting frame 110 ; the third support rod 170 is U-shaped.

[0051] Through this embodiment, the two ends of the third support rod 170 are welded to the support plate 190; when the winch 150 reels the rope to place the mounting frame 110 flat on the support plate 190, the third support rod 170 supports the top of the mounting frame 110, so that the mounting frame 110 can be placed stably on the support plate 190.

[0052] In this embodiment, a through hole 510 is provided at the upper end of the column 240 for the piston rod of the oil cylinder 350 to pass through.

[0053] Through this embodiment, the through hole 510 limits the piston rod of the oil cylinder 350 and allows the piston rod to extend out of the installation cavity 610.

[0054] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on one or several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0055] The present invention and its implementation methods are described schematically above, and the description is not restrictive. The embodiments shown in the embodiments are only part of the implementation methods of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the embodiments and designs a structure and an implementation method similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the protection scope of the present invention.

Claims

1. A crawler-type foldable gantry, characterized in that: The invention comprises a gantry body (100), wherein the gantry body (100) comprises a mounting frame (110) for suspending a steel cage, and a traveling device (120) for transporting the mounting frame (110); the traveling device (120) comprises a support plate (190), a track wheel (101) is provided below the support plate (190), and a diesel engine (160) for driving the track wheel (101) to rotate is provided above the support plate (190); a first hinge block (720) is provided at one end of the support plate (190), and the first hinge block (720) is hinged to the mounting frame (110); and a winch (150) is also provided above the support plate (190), and the winch (150) is used to pull the mounting frame (110) to rotate along the hinge.

2. The crawler-type foldable gantry according to claim 1, characterized in that: The mounting frame (110) comprises a bottom frame (270) in a rectangular shape, wherein two upright posts (240) are arranged perpendicular to the bottom frame (270) above the bottom frame (270); an installation cavity (610) is arranged inside the upright post (240) along the length direction of the upright post (240), and an oil cylinder (350) is arranged at the bottom of the installation cavity (610); a piston rod of the oil cylinder (350) is arranged along the length direction of the installation cavity (610) and extends out of the installation cavity (610); and a cross bar (230) is arranged above the upright post (240), with both ends respectively connected to the two piston rods.

3. The crawler-type foldable gantry according to claim 2, characterized in that: A first support rod (250) and a second support rod (260) are respectively provided on both sides of the column (240) and are used to connect the column (240) and the bottom frame (270). A second hinge block (340) is provided at the first support rod (250), and the second hinge block (340) is hinged to the first hinge block (720).

4. The crawler-type foldable gantry according to claim 2, characterized in that: Two first guide plates (310) are arranged along the length direction of the column (240) on both sides of the column (240), and the two first guide plates (310) and the column (240) together form a guide groove (520); two second guide plates (360) are arranged along the length direction of the column (240) and extend into the guide groove (520) at both ends of the crossbar (230).

5. The crawler-type foldable gantry according to claim 2, characterized in that: A third hinge block (330) is provided on the side wall of the column (240), and a fourth hinge block (710) is provided above the support plate (190); an inclined telescopic rod (130) and a sleeve (140) are provided between the third hinge block (330) and the fourth hinge block (710); one end of the telescopic rod (130) is hinged to the third hinge block (330), and one end of the sleeve (140) is hinged to the fourth hinge block (710); an end of the telescopic rod (130) away from the hinge extends into the sleeve (140) and can move axially along the sleeve (140).

6. The crawler-type foldable gantry according to claim 2, characterized in that: Two vertical plates (210) arranged perpendicular to the horizontal bars (230) are provided above the horizontal bars (230), and a rotating column (220) for connecting the two vertical plates (210) is provided between the two vertical plates (210).

7. The crawler-type foldable gantry according to claim 2, characterized in that: First jacks (280) are provided at four corners of the bottom frame (270).

8. The crawler-type foldable gantry according to claim 1, characterized in that: The support plate (190) is rectangular in shape, and second jacks (180) are provided at four corners of the support plate (190).

9. The crawler-type foldable gantry according to claim 1, characterized in that: A third support rod (170) is provided at one end of the support plate (190) away from the mounting frame (110) and is arranged perpendicular to the support plate (190); the third support rod (170) is U-shaped.

10. The crawler-type foldable gantry according to claim 2, characterized in that: The upper end of the column (240) is provided with a through hole (510) through which the piston rod of the oil cylinder (350) passes.

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