CN115478671A

CN115478671A - Support frame for civil construction

Info

Publication number: CN115478671A
Application number: CN202211329521.2A
Authority: CN
Inventors: 姚贤华; 李列列; 管俊峰; 李勋; 高勇伟; 吴昊; 张雷; 上官林建; 何双华; 牛丽华; 郝颖; 陈珊珊; 张敏; 韩瑞聪; 徐国会; 孙灵灵
Original assignee: North China University of Water Resources and Electric Power
Current assignee: North China University of Water Resources and Electric Power
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2022-12-16

Abstract

The invention relates to a support frame for civil construction, which comprises a support frame body, wherein a pedal is connected to the support frame body, and a base is connected to the lower end of the support frame body; the left part of footboard is provided with the rectangle through-hole, and the footboard is connected at the support unit top through the couple, the base includes box and supporting leg, and the supporting leg includes sleeve and flexible leg, and flexible leg is located the sleeve, the sleeve includes first barrel and second barrel, flexible leg includes telescopic link, drive wheel and follows the driving wheel, the supporting leg receives hand pump control. The invention can lead workers to directly adjust the position of the support frame above the support frame, and the support frame and the ground are not supported by wheels, thereby avoiding the support frame from sliding.

Description

Support frame for civil construction

Technical Field

The invention relates to the technical field of civil construction, in particular to a support frame for civil construction.

Background

Civil construction is a general term for scientific technology for building various engineering facilities. It refers to the applied materials, equipment and the technical activities of surveying, designing, constructing, maintaining and the like; also refers to the objects of engineering construction, i.e. various engineering facilities which are built on the ground or underground, on land or in water and directly or indirectly serve human life, production, military affairs and scientific research.

The non-bearing structure wall in the building needs the workman to be under construction alone and build when civil construction, need use the support frame to assist the construction when building to non-bearing structure wall.

Application number is CN 202022098984.5's patent file discloses support for civil engineering construction, the on-line screen storage device comprises a base, the upper end intermediate position of base has been seted up and has been accomodate the groove, the both sides wall movable mounting of base has four gyro wheels of group, just the up end that is located the base directly over the gyro wheel all inserts and is equipped with the bolt, the upper end symmetry of base is provided with four group's support columns, the bottom of support column is provided with the spacer pin, the bottom of support column has the connecting rod through spacer pin movable mounting.

In the construction process, workers can only carry out construction on the position right opposite to the support, before parts except the support are constructed, the workers need to climb down the support and adjust the position of the support to enable the support to correspond to the position needing construction, construction is convenient, the workers need to frequently climb down the support and adjust the position of the support in the construction process, and then climb up the support to carry out construction.

Disclosure of Invention

The invention provides a support frame for civil construction, aiming at solving the problem that the existing support frame needs workers to frequently lift and lower the support frame to adjust the position of a support, and aiming at providing a support frame which can be directly adjusted above the support frame without needing the workers to lift and lower the support frame, and the support frame and the ground are not supported by wheels, so that the support frame is prevented from sliding.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a supporting frame for civil construction comprises a frame body and a pedal, wherein the pedal is lapped above the frame body, and the lower end of the frame body is connected with a base;

the base comprises a box body and supporting legs, the upper surface of a cover plate of the box body is connected with a support body in a socket joint mode, the right end of the box body is connected with an oil tank, four supporting legs are arranged on the bottom surface of the box body, each supporting leg comprises a sleeve and a telescopic leg, the sleeves are fixed on the bottom surface of the box body, the telescopic legs are located in the sleeves, each telescopic leg comprises a telescopic rod, a driving wheel set and a driven wheel set, the upper end of each telescopic rod is connected with a piston plate which is in sliding contact with the inner wall of the upper portion of each sleeve, each driven wheel set is rotatably connected to the lower end of each telescopic rod, the driving wheel set is rotatably connected to the telescopic rod between each piston plate and each driven wheel set, and each driving wheel set is connected with each driven wheel set through a chain;

the upper end of the bracket body is connected with a hand pump in a socket joint mode, one end of the hand pump is connected with a first pipeline, the other end of the hand pump is connected with a second pipeline, the first pipeline extends into the bottom of the oil tank, the lower end of the second pipeline extends into the tank body and is communicated with four third pipelines, and the four third pipelines are respectively communicated with the upper ends of the four sleeves;

a toothed plate which enables the driving wheel set to be in a rotating state is vertically fixed in the lower portion of the sleeve.

Further, the sleeve comprises a first cylinder body on the upper portion and a second cylinder body on the lower portion, the center of the top of the second cylinder body is communicated with the lower end of the first cylinder body, a square through hole is formed in the center of a bottom plate of the second cylinder body, the piston plate is in sliding contact with the inner wall of the first cylinder body, and the inner portion of the first cylinder body above the piston plate is communicated with a third pipeline.

Further, the driving wheel group comprises a first rotating shaft, a first chain wheel, an one-way bearing and a gear, the gear is installed at each of two ends of the first rotating shaft, the one-way bearing is fixedly connected to the periphery of the middle portion of the first rotating shaft, the first chain wheel is fixedly connected to the outer ring of the one-way bearing, the driven wheel group comprises a second rotating shaft, a second chain wheel and a roller, the roller is installed at each of two ends of the second rotating shaft, the second chain wheel is fixedly connected to the periphery of the middle portion of the second rotating shaft, and the second chain wheel is connected with the first chain wheel through a chain.

Further, the pinion rack has two, two the pinion rack is parallel to each other, and corresponds the meshing with a gear respectively, two the upper end of pinion rack is fixed at the interior top of second barrel.

Further, when the upper surface of the piston plate is in contact with the inner top surface of the first barrel, the gear is meshed with teeth on the upper portion of the toothed plate, the upper end of the first chain wheel and the lower end of the first barrel are on the same horizontal plane, and the lower end of the roller and the lower end of the second barrel are on the same horizontal plane.

Further, the limiting ring is fixedly connected to the lower portion of the first barrel in a sleeved mode and outside the telescopic rod, the telescopic rod is in sliding contact with the limiting ring, the distance between the top face in the first barrel and the limiting ring is larger than the distance between the second rotating shaft and the first rotating shaft, the distance between the lower end of the toothed plate and the inner bottom face of the second barrel is larger than the radius of the gear, and when the piston plate is in contact with the limiting ring, the gear is separated from teeth at the lowest end of the toothed plate.

Furthermore, the hand pump includes the pump body and socket joint pole, there is the rocking handle on the pump body, is connected with the chain on the socket joint pole.

Further, be provided with on the footboard and dismantle folding guardrail, the hand pump is located the guardrail upper end, the apron left end is provided with the logical groove of opening right, it supplies first pipeline and second pipeline to pass to lead to the groove.

Furthermore, one side face, opposite to the gear, of each toothed plate in the four supporting legs is fixed on the inner wall of the right side of the second cylinder, and the rotation directions of the one-way bearings on the four supporting legs are the same; or one side surface of the toothed plates of the two supporting legs positioned at the left part of the bottom surface of the box body, which is opposite to the meshed gear, among the four supporting legs is fixed on the inner wall of the left side of the second cylinder body, one side surface of the toothed plates of the two supporting legs positioned at the right part of the bottom surface of the box body, which is opposite to the meshed gear, is fixed on the inner wall of the right side of the second cylinder body, and the rotation directions of the one-way bearings on the four supporting legs are the same; or among the four supporting legs, the rotation direction of the one-way bearings of the two supporting legs positioned at the left part of the bottom surface of the box body is opposite to the rotation direction of the one-way bearings of the two supporting legs positioned at the right part of the bottom surface of the box body, and the toothed plates of the four supporting legs and one side face, back to back, of the meshed gears are fixed on the inner wall of the right side of the second barrel body.

Furthermore, the bottom surface of the second cylinder on the outer side of the through hole is connected with an anti-slip plate, and the anti-slip plate is a frame-shaped plate body made of rubber.

Through the technical scheme, the invention has the beneficial effects that:

compared with the prior art, the invention can ensure that workers can adjust the position of the support frame when the workers are at the top of the support frame, is more convenient and saves the construction time.

When the support frame does not need to move, the idler wheels of the support legs are not in contact with the ground, so that the support frame is prevented from sliding dangers when the support frame does not need to move.

Compared with the existing support frame, the movable support frame is convenient to use and fast to adjust, unnecessary time waste can be saved, and the construction efficiency is improved.

When the foldable support is not used, the support body can be stored, so that the occupied space is reduced, and the scattering of all parts is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional front view of the support leg of the present invention;

FIG. 4 isbase:Sub>A sectional view taken along line A-A of FIG. 3;

FIG. 5 is a sectional view taken along line B-B of FIG. 3;

FIG. 6 is an enlarged view of section C of FIG. 4;

fig. 7 is a schematic view of the connection of the hand pump of the present invention to the first, second and third conduits.

The reference numbers in the figures are: 1. an x-shaped connector; 2. a climbing frame; 3. a pedal; 4. a hand pump; 5. an oil tank; 6. a box body; 7. a cover plate; 8. a sleeve; 9. locking; 10. a first cylinder; 11. a second cylinder; 12. a circular through hole; 13. a limiting ring; 14. a through hole; 15. a toothed plate; 16. a telescopic rod; 17. a driving wheel set; 18. a driven wheel set; 19. a piston plate; 20. an n-shaped groove; 21. a gear; 22. a first rotating shaft; 23. a first sprocket; 24. a one-way bearing; 25. a roller; 26. a second sprocket; 27. a second rotating shaft; 28. a chain; 29. a rocking handle; 30. a socket rod; 31. a chain; 32. a through groove; 33. a first conduit; 34. a second conduit; 35. a third pipeline; 36. an anti-skid plate; 37. a guardrail; 38. a handle.

Detailed Description

The invention is further described with reference to the following figures and detailed description:

as shown in fig. 1 to 7, a support frame for civil construction comprises a support frame body and pedals, wherein the support frame body is formed by connecting a plurality of support frame units in a socket manner, each support frame unit comprises two x-shaped connecting pieces 1 which are opposite from front to back and two climbing frames 2 which are opposite from left to right, each x-shaped connecting piece 1 is formed by hinging the middle parts of two rod bodies, the end parts of the two rod bodies forming the x-shaped connecting pieces 1 are respectively connected with the two climbing frames 2, each climbing frame 2 is formed by connecting a plurality of cross rods between two upright posts, the pedals 3 are lapped above the support frame body, the pedals 3 are rectangular plate bodies, the left and right ends of each pedal 3 are respectively provided with two hooks, the pedals 3 are lapped on the tops of the uppermost support frame units through the hooks, and the lower ends of the support frame body are connected with a base;

the base is of a box-shaped structure and comprises a box body 6 and supporting legs, the box body 6 is a hollow cuboid with an opening at the upper end, a cover plate is arranged at the opening at the upper end of the box body 6, the cover plate 7 is a rectangular plate body, the cover plate 7 covers the opening at the upper end of the box body 6, the rear side edge of the cover plate 7 is connected with the opening at the upper end of the box body 6 through a hinge shaft, the front side edge of the cover plate 7 is connected with the opening at the upper end of the box body 6 through a lock 9, the upper surface of the cover plate 7 of the box body 6 is connected with a support body in a socket joint manner, four connecting holes for socket joint support units are arranged on the top surface of the cover plate 7, the cover plate 7 is connected with the support body in a socket joint manner through four connecting holes, the right end of the box body is connected with an oil tank 5, hydraulic oil is arranged in the oil tank 5, the bottom surface of the box body 6 is provided with four supporting legs, each supporting leg comprises a sleeve 8 and a telescopic leg, the sleeve 8 is fixed on the bottom surface of the box body 6, the telescopic legs are positioned in the sleeve 8, each telescopic leg comprises a telescopic rod 16, a driving wheel set 17 and a driven wheel set 18, the upper end of each telescopic rod 16 is positioned in the upper part of the sleeve 8 and is connected with a piston plate 19 in sliding contact with the inner wall of the upper part of the sleeve 8, the lower end of each telescopic rod 16 is positioned in the lower end of the sleeve 8, the driven wheel set 18 is rotatably connected to the lower end of the telescopic rod 16, the driving wheel set 17 positioned in the lower part of the sleeve 8 is rotatably connected to the telescopic rod 16 between the piston plate 19 and the driven wheel set 18, and the driving wheel set 17 is connected with the driven wheel set 18 through a chain 28;

the upper end of the bracket body is connected with a hand pump 4 in a socket joint mode, one end of the hand pump 4 is connected with a first pipeline 33, the other end of the hand pump 4 is connected with a second pipeline 34, the first pipeline 33 extends into the bottom of the oil tank 5, the lower end of the second pipeline 34 extends into the tank body 6 and is communicated with four third pipelines 35, and the four third pipelines 35 penetrate through the bottom plate of the tank body 6 and are respectively communicated with the upper ends of the four sleeves 8;

a toothed plate 15 which enables the driving wheel set 17 to be in a rotating state is vertically fixed in the lower portion of the sleeve 8, and teeth are arranged on one end face, facing the telescopic leg, of the toothed plate 15.

The sleeve 8 comprises a first barrel 10 on the upper portion and a second barrel 11 on the lower portion, the first barrel 10 is a square barrel with an opening at the lower end, the second barrel 11 is a hollow cuboid, the side length of the horizontal cross section of the first barrel 10 is smaller than the side length of the short side of the horizontal cross section of the second barrel 11, the lower end of the first barrel 10 is fixedly connected with a top plate of the second barrel 11, the top center of the second barrel 11 is communicated with the lower end of the first barrel 10, a bottom plate center of the second barrel 11 is provided with a square through hole 14, the piston plate 19 is a square plate body, the piston plate 19 is in sliding contact with the inner wall of the first barrel 10, a third pipeline 35 is communicated with the inside of the first barrel 10 above the piston plate 19, a circular through hole 12 is formed in the center of the top plate of the first barrel 10, the circular through hole 12 penetrates through the top plate of the first barrel 10, and the circular through hole 12 is communicated with the third pipeline 35.

The lower part of telescopic link 16 is provided with lower extreme open-ended n shape groove 20, the left and right sides of telescopic link 16 is run through respectively to both ends about n shape groove 20, the upper end in n shape groove 20 is higher than the second barrel 11 upper end, drive wheelset 17 includes first pivot 22, first sprocket 23, one-way bearing 24 and gear 21, first pivot 22 runs through telescopic link 16 front and back side and n shape groove 20, the gear 21 that is located the front side and the rear side of telescopic link 16 is installed respectively to the both ends of first pivot 22, two gear 21 mesh pinion rack 15 respectively, first pivot 22 middle part periphery fixedly connected with is located the one-way bearing 24 in n shape inslot 20 upper portion, one-way bearing adopts CKA2052 one-way bearing, the first sprocket 23 of outer lane fixed connection of one-way bearing 24, first sprocket 23 diameter is greater than gear 21 external diameter, driven wheel 18 includes second pivot 27, second sprocket 26 and gyro wheel 25, second pivot 27 runs through telescopic link 16 front and back side and n shape groove 20 lower extreme, the both ends of second pivot 27 fixed mounting has gyro wheel 25 respectively, the lower extreme of gyro wheel 25 is less than the lower extreme fixed wheelset 27, the lower extreme of second pivot 26 is connected with the second sprocket 26, the second sprocket 26 is connected with the diameter through the second sprocket 26, the second sprocket 26 in the two ends of the chain sprocket 23 respectively fixed connection of the first pivot 26.

The pinion rack 15 has two, two pinion rack 15 is parallel to each other, and corresponds the meshing with a gear 21 respectively, two the upper end of pinion rack 15 is fixed on the interior top of second barrel 11, and the side that backs on the back with gear 21 is fixed on the inside wall of second barrel 11, and pinion rack 15 is the riser that has the tooth for the side from the top down equipartition towards gear 21, and the distance between the pinion rack 15 upper and lower end is greater than the distance between gear 21 upper end and the gyro wheel 25 upper end.

When the upper surface of the piston plate 19 contacts with the inner top surface of the first cylinder 10, the gear 21 engages with teeth on the upper portion of the toothed plate 15, the upper end of the first chain wheel 23 and the lower end of the first cylinder 10 are on the same horizontal plane, and the lower end of the roller 25 and the lower end of the second cylinder 11 are on the same horizontal plane.

The limiting ring 13 sleeved outside the telescopic rod 16 is fixedly connected to the lower portion of the first barrel 10, the telescopic rod 16 is in sliding contact with the limiting ring 13, the distance between the inner top surface of the first barrel 10 and the limiting ring 13 is larger than the distance between the second rotating shaft 27 and the first rotating shaft 22, the distance between the lower end of the toothed plate 15 and the inner bottom surface of the second barrel 11 is larger than the radius of the gear 21, when the piston plate 19 is in contact with the limiting ring 13, the gear 21 is separated from teeth at the lowest end of the toothed plate 15, at the moment, the roller 25 can rotate freely, workers can push the telescopic-type electric wrench conveniently after construction is finished, carrying is not needed, and physical strength is saved.

Hand pump 4 includes the pump body and socket joint pole 30, there is rocking handle 29 on the pump body, is equipped with handle 38 on the pump body, is connected with the chain 31 on the socket joint pole 30, the rotation of rocking handle 29 can be restricted to the chain 31, the pump body adopts two-way manual oil pump of YSSB type or 3461010-RP100 type hand pump.

Be provided with on the footboard 3 and dismantle folding guardrail 37, guardrail 37 is "C" shape frame construction that three protecting wire net combination formed, opening backward, the protecting wire net is the rectangular plate body, and the protecting wire net lower extreme all is articulated with footboard 3, and three protecting wire net is articulated in proper order, hand pump 4 is located guardrail 37 upper end, 7 left ends of apron are provided with opening logical groove 32 to the right, logical groove 32 supplies first pipeline 33 and second pipeline 34 to pass, and first pipeline 33 passes logical groove 32 earlier and then runs through 5 lateral walls of oil tank, stretches into in 5 bottoms of oil tank.

The bottom surface of the second cylinder 11 outside the through hole 14 is connected with an anti-slip plate 36, the anti-slip plate 36 is a frame-shaped plate made of rubber, and when the telescopic leg is positioned in the sleeve 8, the support leg stands on the ground through the anti-slip plate 36 and cannot slide.

The first embodiment is as follows:

one side face, back on the other hand, of the toothed plate 15 and the gear 21 in the four supporting legs is fixed on the inner wall of the right side of the second barrel body 11, and the rotating directions of the one-way bearings 24 on the four supporting legs are the same.

When the selected one-way bearing 24 is the one-way bearing, the inner ring can only rotate clockwise relative to the outer ring, the counterclockwise rotation can lock the support unit, the components forming the support unit are taken out of the box body 6 and assembled into the support body, the support body is connected to the cover plate 7 in a socket and spigot manner, the pedal 3 is lapped on the support body, a worker can climb the pedal 3 by the climbing frame 2 to perform construction operation, when the support frame needs to be moved, only the crank 29 of the hand crank pump needs to be rotated, so that hydraulic oil in the oil tank 5 flows into the first barrel 10 above the piston plates 19 of the four support legs through the first pipeline 33, the hand crank pump 4, the second pipeline 34 and the third pipeline 35, the hydraulic oil flowing into the first barrel 10 above the piston plates 19 presses the telescopic rod 16 downwards, when the telescopic rod 16 moves downwards, the toothed plate 15 in the support leg drives the gear 21 to rotate, when the gear 21 rotates, the first rotating shaft 22 and the one-way bearing 24 drive the first chain wheel 23 to rotate counterclockwise, the first chain wheel 23 drives the second chain wheel 26 to rotate, when the roller 26 drives the roller 25 to extend out of the roller 16, and the telescopic rod can continue to extend out of the lower end of the telescopic rod to move downwards.

When a worker reversely rotates the crank 29 of the hand pump 4, hydraulic oil flows back into the oil tank 5, the telescopic rod 16 retracts into the second cylinder 11, and during retraction of the telescopic rod 16, the gear 21 and the first rotating shaft 22 are not limited by the one-way bearing any more, so that the support frame does not move during retraction of the telescopic rod 16.

Can accomodate the support frame body in the box after the worker construction, after accomodating, rocking handle 29 through rotatory hand pump 4 makes piston plate 19 and spacing ring 13 contact, adjusting roller 25 stretches out second barrel 11, gear 21 breaks away from the tooth of pinion rack 15 lower extreme, and it is rotatory to use chain restriction rocking handle 29, the rotation of gyro wheel 25 is no longer restricted by pinion rack 15, the support frame after convenient messenger accomodates moves, after moving storage position, the restriction of cancellation to rocking handle 29, and wave rocking handle 29, make second gyro wheel 25 return to in the second barrel 11, then accomodate hand pump 4 into in box 6.

Example two:

this embodiment is the same basically as embodiment one, and its same parts are no longer repeated, and the difference lies in, among four supporting legs of 6 bottom surfaces of box, the pinion rack 15 that is located two supporting legs of 6 bottom surfaces left part of box and the side that gear 21 carried on the back mutually are fixed on the left side inner wall of second barrel 11, and the pinion rack 15 that is located two supporting legs of 6 bottom surfaces right part of box and the side that gear 21 carried on the back mutually are fixed on the right side inner wall of second barrel 11, and the one-way bearing on four supporting legs is turned to the same.

When the selected one-way bearing 24 is that the inner ring can only rotate clockwise relative to the outer ring, and the anti-clockwise rotation can lock, the roller 25 at the lower end of the telescopic rod 16 extends out of the lower end of the second cylinder 11 and can drive the support frame to move leftwards when continuing to extend downwards, and the roller 25 at the lower end of the telescopic rod 16 retracts into the lower end of the second cylinder 11 and can also drive the support frame to move leftwards.

A worker can continuously move the present invention leftward by rotating the crank 29 of the hand pump 4 in the forward direction (without disengaging the gear 21 from the teeth on the toothed plate 15) and then rotating the crank 29 of the hand pump 4 in the reverse direction, so that the movement of the support frame can be adjusted on the support frame without repeatedly climbing the support frame, and the present invention does not run down when the left end of the present invention faces an uphill direction.

EXAMPLE III

This embodiment is basically the same as the first embodiment, and the same parts are not repeated, and the difference lies in that, among the four supporting legs, the turning directions of the one-way bearings 24 of the two supporting legs located at the left part of the bottom surface of the box body 6 are opposite to the turning directions of the one-way bearings 24 of the two supporting legs located at the right part of the bottom surface of the box body 6, and one side surfaces of the toothed plates 15 of the four supporting legs, which are opposite to the meshed gears 21, are fixed on the inner wall of the right side of the second cylinder body 11

When the one-way bearing 24 selected from the two support legs positioned at the right part is an inner ring, the inner ring can only rotate clockwise relative to the outer ring, and the anticlockwise rotation can be locked; the one-way bearing 24 selected from the two support legs at the left part is an inner ring which can only rotate anticlockwise relative to an outer ring, and the clockwise rotation can lock the support legs, namely, the crank 29 of the hand pump is rotated to enable hydraulic oil in the oil tank 5 to flow into the first cylinder 10 above the piston plates 19 of the four support legs through the first pipeline 33, the hand pump 4, the second pipeline 34 and the third pipeline 35, when the hydraulic oil flowing into the first cylinder 10 above the piston plates 19 presses the telescopic rod 16 downwards, the telescopic rod 16 generates relative displacement with the second cylinder 11 when moving downwards, the toothed plate 15 in the sleeve 8 at the right part of the lower surface of the box body 6 drives the gear 21 to rotate anticlockwise, when the gear 21 rotates, the first chain wheel 22 and the one-way bearing 24 drive the first chain wheel 23 to rotate anticlockwise, the first chain wheel 23 drives the second chain wheel 26 to rotate, the second chain wheel 26 drives the roller 25 to rotate anticlockwise, and when the roller 25 at the lower end of the telescopic rod 16 extends out of the second cylinder 11 and continues to extend downwards, the support legs can move leftwards; meanwhile, the toothed plate 15 in the sleeve 8 at the left part of the lower surface of the box body 6 drives the gear 21 to rotate anticlockwise, and when the support frame moves leftwards, the roller 25 at the left part of the lower surface of the box body 6 also rotates anticlockwise, so that the roller 25 drives the second chain wheel 26 and the first chain wheel 23 to rotate anticlockwise, the first chain wheel 23 in the sleeve 8 at the left part of the lower surface of the box body 6 and the connected first rotating shaft 22 synchronously rotate anticlockwise, no driving force is generated, and the invention can smoothly move leftwards.

When the telescopic rod 16 retracts, the toothed plate 15 in the sleeve 8 at the left part of the lower surface of the box body 6 drives the gear 21 to rotate clockwise, the gear 21 drives the first chain wheel 23 to rotate clockwise through the first rotating shaft 22 and the one-way bearing 24 when rotating, the first chain wheel 23 drives the second chain wheel 26 to rotate, the second chain wheel 26 drives the roller 25 to rotate clockwise, and the roller 25 at the lower end of the telescopic rod 16 can drive the support frame to move rightwards in the retracting process; meanwhile, the toothed plate 15 in the sleeve 8 at the right part of the lower surface of the box body 6 drives the gear 21 to rotate clockwise, and when the support frame moves rightwards, the roller 25 at the right part of the lower surface of the box body 6 also rotates clockwise, so that the roller 25 drives the second chain wheel 26 and the first chain wheel 23 to rotate clockwise, the first chain wheel 23 in the sleeve 8 at the right part of the lower surface of the box body 6 and the connected first rotating shaft 22 synchronously rotate clockwise, no driving force is generated, and the invention can smoothly move rightwards.

And because the unidirectional bearings at the left part and the right part of the four supporting legs at the bottom surface of the box body 6 are opposite in rotating direction, the downward sliding state can not be generated even on the ground with slope.

Namely: the third embodiment of the invention moves leftwards when the supporting legs extend out, and moves rightwards when the supporting legs retract, so that the invention is suitable for high-place construction which needs frequent left and right movement, such as tile paving, wall leveling, high-place wiring of an inner wall and the like.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various modifications can be made to the technical solution of the present invention within the scope of disclosure without departing from the spirit of the present invention.

Claims

1. The support frame for the civil construction comprises a support frame body and a pedal (3), wherein the pedal (3) is lapped above the support frame body, and is characterized in that the lower end of the support frame body is connected with a base;

the base comprises a box body (6) and supporting legs, the upper surface of a cover plate (7) of the box body (6) is connected with a support body in a socket joint mode, the right end of the box body (6) is connected with an oil tank (5), four supporting legs are arranged on the bottom surface of the box body (6), each supporting leg comprises a sleeve (8) and a telescopic leg, the sleeves (8) are fixed on the bottom surface of the box body (6), the telescopic legs are located in the sleeves (8), each telescopic leg comprises a telescopic rod (16), a driving wheel set (17) and a driven wheel set (18), the upper end of each telescopic rod (16) is connected with a piston plate (19) in sliding contact with the inner wall of the upper portion of each sleeve (8), each driven wheel set (18) is rotatably connected to the lower end of each telescopic rod (16), each telescopic rod (16) between each piston plate (19) and each driven wheel set (18) is rotatably connected with each driving wheel set (17), and each driving wheel set (17) is connected with each driven wheel set (18) through a chain (28);

the upper end of the support body is connected with a hand pump (4) in a socket joint mode, one end of the hand pump (4) is connected with a first pipeline (33), the other end of the hand pump is connected with a second pipeline (34), the first pipeline (33) extends into the bottom of the oil tank (5), the lower end of the second pipeline (34) extends into the tank body (6) and is communicated with four third pipelines (35), and the four third pipelines (35) are respectively communicated with the upper ends of the four sleeves (8);

a toothed plate (15) which enables the driving wheel set (17) to be in a rotating state is vertically fixed in the lower portion of the sleeve (8).

2. A supporting frame for civil construction according to claim 1 wherein the sleeve (8) comprises a first cylinder (10) at the upper part and a second cylinder (11) at the lower part, the top center of the second cylinder (11) is communicated with the lower end of the first cylinder (10), the center of the bottom plate of the second cylinder (11) is provided with a square through hole (14), the piston plate (19) is in sliding contact with the inner wall of the first cylinder (10), and the inside of the first cylinder (10) above the piston plate (19) is communicated with a third pipeline (35).

3. The supporting frame for the civil construction as claimed in claim 2, wherein the driving wheel set (17) comprises a first rotating shaft (22), a first chain wheel (23), a one-way bearing (24) and a gear (21), the gear (21) is respectively installed at two ends of the first rotating shaft (22), the one-way bearing (24) is fixedly connected to the outer periphery of the middle part of the first rotating shaft (22), the first chain wheel (23) is fixedly connected to the outer ring of the one-way bearing (24), the driven wheel set (18) comprises a second rotating shaft (27), a second chain wheel (26) and a roller (25), the roller (25) is respectively installed at two ends of the second rotating shaft (27), the second chain wheel (26) is fixedly connected to the outer periphery of the middle part of the second rotating shaft (27), and the second chain wheel (26) is connected to the first chain wheel (23) through a chain (28).

4. A supporting frame for civil construction according to claim 3, characterized in that there are two toothed plates (15), the two toothed plates (15) are parallel to each other and are respectively engaged with a gear (21), and the upper ends of the two toothed plates (15) are fixed on the inner top of the second cylinder (11).

5. A supporting frame for civil construction according to claim 4 wherein, when the upper surface of the piston plate (19) contacts the inner top surface of the first cylinder (10), the gear (21) engages teeth on the upper part of the toothed plate (15), the upper end of the first chain wheel (23) is on the same horizontal plane with the lower end of the first cylinder (10), and the lower end of the roller (25) is on the same horizontal plane with the lower end of the second cylinder (11).

6. The supporting frame for the civil construction according to claim 4, wherein a limiting ring (13) sleeved outside the telescopic rod (16) is fixedly connected in the lower portion of the first cylinder (10), the telescopic rod (16) is in sliding contact with the limiting ring (13), the distance from the inner top surface of the first cylinder (10) to the limiting ring (13) is greater than the distance from the second rotating shaft (27) to the first rotating shaft (22), the distance from the lower end of the toothed plate (15) to the inner bottom surface of the second cylinder (11) is greater than the radius of the gear (21), and when the piston plate (19) is in contact with the limiting ring (13), the gear (21) is separated from teeth at the lowest end of the toothed plate (15).

7. A support frame for civil construction according to claim 1 wherein the hand pump (4) comprises a pump body and a socket rod (30), the pump body is provided with a rocking handle (29), and the socket rod (30) is connected with a chain (31).

8. A supporting frame for civil construction according to claim 2 wherein the pedal (3) is provided with a detachable folding guardrail (37), the hand pump (4) is positioned at the upper end of the guardrail (37), the left end of the cover plate (7) is provided with a through groove (32) with a rightward opening, and the through groove (32) is used for the first pipeline (33) and the second pipeline (34) to pass through.

9. The supporting frame for the civil construction according to claim 4, wherein one side surface of the toothed plate (15) of the four supporting legs, which is opposite to the gear (21), is fixed on the inner wall of the right side of the second cylinder body (11), and the unidirectional bearings (24) on the four supporting legs have the same rotation direction; or in the four supporting legs, one side surface of the toothed plates (15) of the two supporting legs positioned at the left part of the bottom surface of the box body (6) and opposite to the meshed gear (21) is fixed on the inner wall of the left side of the second cylinder body (11), one side surface of the toothed plates (15) of the two supporting legs positioned at the right part of the bottom surface of the box body (6) and opposite to the meshed gear (21) is fixed on the inner wall of the right side of the second cylinder body (11), and the rotation directions of the one-way bearings (24) on the four supporting legs are the same; or among the four supporting legs, the rotating directions of the one-way bearings (24) of the two supporting legs positioned at the left part of the bottom surface of the box body (6) are opposite to the rotating directions of the one-way bearings (24) of the two supporting legs positioned at the right part of the bottom surface of the box body (6), and one side faces, back to the back, of the toothed plates (15) and the meshed gears (21) of the four supporting legs are fixed on the inner wall of the right side of the second barrel body (11).

10. A bracing frame for civil construction according to claim 2, wherein a non-slip plate (36) is connected to the bottom surface of the second cylinder (11) outside the through hole (14), and the non-slip plate (36) is a frame-shaped plate body made of rubber.