CN221760475U - Precast T roof beam diaphragm strutting arrangement - Google Patents

Abstract

The utility model relates to the technical field of bridge engineering, and discloses a prefabricated T-beam diaphragm plate supporting device, which comprises: a supporting plate; the lifting mechanism comprises a bottom plate, a sleeve, screw blocks, a screw rod and a stopping piece, wherein the bottom plate is fixedly connected with the sleeve, the sleeve is arranged in the vertical direction, the screw blocks are arranged on the sleeve and are in threaded connection with the screw rod, the upper end of the screw rod is connected with the support plate, the lower end of the screw rod is inserted into the upper end of the sleeve, one of the screw blocks and the screw rod is connected with the sleeve through the stopping piece, and the lifting process of the screw rod is realized by rotating the other of the screw blocks and the screw rod. The lifting mechanism can independently realize the lifting process, the synchronous rotation of the screw rod and the screw block and the blocking of the screw block are avoided, the temporary support of the diaphragm plate can be realized, and the cracking of the diaphragm plate of the prefabricated T beam is avoided.

Description

Precast T roof beam diaphragm strutting arrangement

Technical Field

The utility model relates to the technical field of bridge engineering, in particular to a prefabricated T-beam diaphragm plate supporting device.

Background

In bridge construction, precast beams are a common structural form. The diaphragm plates of the precast beams play an important role in connection and support in the bridge structure. After the pouring of the prefabricated T beam is finished and the template is removed, the diaphragm plate is in a suspended state, and a support is arranged at the bottom of the diaphragm plate to prevent the diaphragm plate of the prefabricated beam or cracks from being generated between the diaphragm plate of the prefabricated beam and the flange plates and webs to cause damage, and steel bars, concrete blocks or wood blocks are usually used as temporary supports.

However, this way of using steel bars, concrete blocks or wood blocks as temporary support is not ideal. Because these support materials cannot closely adhere to the diaphragm plates of the precast beams, they are easily displaced for a long time, and cannot effectively play a supporting role. As a result, cracks may be generated in the diaphragm of the precast beam due to its own weight, or between the diaphragm of the precast beam and the flange plate or web.

The patent with the bulletin number of CN212771957U discloses a prefabricated T beam diaphragm jacking device, which comprises a bottom plate, wherein two steel pipes are vertically welded on the bottom plate, a screw rod is inserted into each steel pipe, a nut is screwed on the screw rod, the diameter of the nut is larger than that of the steel pipe, the nut is supported at the top of the steel pipe, the lower end of the screw rod is suspended in the steel pipe, the upper end of the screw rod protrudes out of the steel pipe by a certain height, and a supporting plate is welded at the top of the screw rod. The patent can support diaphragm plates with different heights by adjusting the height of the screw. However, in the nut rotating process in the using process of the patent, the screw is easy to synchronously rotate, so that the height of the screw cannot be adjusted.

The patent with the publication number of CN210529510U discloses a temporary supporting device for a diaphragm plate of a precast beam, which comprises a top plate, a screw rod, a nut, a steel pipe and a base, wherein the top plate is connected with the screw rod through a connecting piece; the steel pipe is connected with the base through a connecting piece; the nut is sleeved on the screw rod; the screw rod stretches into the steel pipe, and the diameter of the steel pipe is greater than the diameter of the screw rod and is smaller than the diameter of the outer ring of the nut. When the device is used, the screw is screwed with the nut and inserted into the steel pipe on the base, the height of the top plate is adjusted according to the suspended height of the diaphragm, the device is placed under the diaphragm of the precast beam, the length of the steel pipe is stretched into by the fine-tuning screw through the rotating nut, the vertical movement of the top plate and the leaning close of the diaphragm are realized, the supporting effect is ensured, and the cracking of the diaphragm of the precast beam is prevented. However, because the roof and a plurality of screw rods are simultaneously clamped, when a single nut is rotated, the roof is easy to deflect when the lifting height of the single screw rod is long, the single nut is clamped, and the problems can be solved only by a mode that a plurality of nuts synchronously and uniformly rotate or the nuts are rotated after the roof is lifted up, so that the operation process is complicated.

In view of this, how to change the current situation that the screw rod rotates synchronously and the top plate deflects and the nut is blocked when the nut is screwed by the existing prefabricated T beam diaphragm support device, and the technical problem to be solved by the person skilled in the art is needed.

Disclosure of utility model

The utility model aims to provide a prefabricated T-beam diaphragm plate supporting device which overcomes the defects of the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: a prefabricated T-beam diaphragm support apparatus comprising:

A supporting plate;

The lifting mechanism comprises a bottom plate, a sleeve, a screw block, a screw rod and a stop piece, wherein the bottom plate is fixedly connected with the sleeve, the sleeve is arranged in the vertical direction, the screw block is arranged on the sleeve, the screw block is in threaded connection with the screw rod, the upper end of the screw rod is connected with the supporting plate, the lower end of the screw rod is inserted into the upper end of the sleeve, one of the screw block and the screw rod is connected with the sleeve through the stop piece, and the screw rod is used for realizing that one of the screw block and the screw rod is not rotated relative to the sleeve, and the other of the screw block and the screw rod is rotated to realize the lifting process of the screw rod.

Further, the screw block is abutted to the upper surface of the sleeve, a chute is arranged on the side wall of the sleeve along the vertical direction, the stop piece is a first pin, the first pin is in sliding connection with the chute, and the first pin is in vertical fixed connection with the lower end of the screw.

Further, the upper end fixedly connected with of screw rod is held in the palm, the lower surface butt of support plate is held in the palm with the top.

Further, the stop piece is a second pin, the screw block is embedded in the sleeve, the second pin penetrates through the screw block along the horizontal direction, and two ends of the second pin are fixedly connected with the sleeve respectively.

Further, the method further comprises the following steps:

The cross section of the outer side wall of the sleeve is polygonal along the horizontal direction, the inner side wall of the sleeve is matched with the outer side wall of the sleeve and is in sliding connection with the outer side wall of the sleeve, and the top surface of the sleeve is abutted with the lower surface of the supporting plate;

The clamping block is fixedly connected in the sleeve and is rotationally connected with the upper end of the screw rod; and

And the driving assembly is used for driving the screw rod to rotate.

Further, the drive assembly includes:

The worm wheel is positioned above the clamping block and is connected with the upper end key of the screw rod; and

And a worm connected in the sleeve in a rotating way and meshed with the worm wheel for transmission.

Further, one end of the worm penetrates through the side wall of the sleeve barrel and is detachably connected with a first crank.

Further, the drive assembly includes:

The first bevel gear is positioned above the clamping block and is connected with the upper end key of the screw rod; and

And the second bevel gear is rotationally connected in the sleeve and meshed with the first bevel gear for transmission.

Further, one end of a rotating shaft connected with the second bevel gear through a key penetrates through the side wall of the sleeve barrel to be detachably connected with a second crank.

Further, the support plate is vertically and fixedly connected with a side plate below one end of the support plate in the length direction, and an inclined strut is fixedly connected between the support plate and the side plate.

Compared with the prior art, the utility model has at least the following advantages:

According to the utility model, the stop piece is arranged, so that one of the screw block or the screw rod and the sleeve do not rotate relatively, the lifting process of the screw rod can be realized by rotating the other screw block or the screw rod, the lifting process of the jacking mechanism can be independently realized, and the condition that the screw rod and the screw block rotate synchronously is avoided. When the screw lifting device is used, the plurality of lifting mechanisms are of independent structures, so that the lifting process of a single screw does not influence the lifting process of other screws, and the situation that screw blocks are blocked can not occur. The supporting device can realize temporary support of the diaphragm plate and avoid cracking of the diaphragm plate of the prefabricated T beam.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic overall construction of a first embodiment of a prefabricated T-beam diaphragm support apparatus of the present utility model;

FIG. 2 is a cross-sectional view of a first embodiment of a prefabricated T-beam diaphragm support apparatus of the present utility model;

FIG. 3 is a schematic view of the overall structure of a second embodiment of a prefabricated T-beam diaphragm support apparatus of the present utility model;

fig. 4 is a cross-sectional view of a second embodiment of a prefabricated T-beam diaphragm support apparatus of the present utility model.

Reference numerals: 1. a supporting plate; 2. a side plate; 3. a diagonal brace; 4. a bottom plate; 5. a sleeve; 6. a screw block; 7. a screw; 8. a chute; 9. a first pin; 10. jacking; 11. a second pin; 12. a sleeve; 13. a clamping block; 14. a worm wheel; 15. a worm; 16. a first crank.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Embodiment one:

Referring to fig. 1-2, the utility model provides a prefabricated T-beam diaphragm plate supporting device, which comprises a supporting plate 1 and a jacking mechanism.

The support plate 1 is used for being abutted against the lower surface of the precast T beam diaphragm, the support plate 1 is made of channel steel, an opening of the channel steel faces downwards, and the middle plate of the channel steel is abutted against the lower surface of the precast T beam diaphragm.

The jacking components are arranged in a plurality, the jacking components are abutted to the lower surface of the supporting plate 1, and the jacking components are arranged at intervals along the length direction of the supporting plate 1. The jacking mechanism comprises a bottom plate 4, a sleeve 5, a screw block 6, a screw rod 7 and a stop piece. The upper surface of the bottom plate 4 is fixedly connected with the sleeve 5, the sleeve 5 is arranged in the vertical direction, and in order to improve the stability of the sleeve 5, the bottom plate 4 and the sleeve 5 can be realized by additionally arranging a rib plate. The screw block 6 is arranged on the sleeve 5, the screw block 6 is in threaded connection with the screw rod 7, the upper end of the screw rod 7 is connected with the supporting plate 1, the lower end of the screw rod 7 is inserted into the upper end of the sleeve 5, one of the screw block 6 and the screw rod 7 is connected with the sleeve 5 through the stop piece, relative rotation between the one of the screw block 6 and the screw rod 7 and the sleeve 5 is avoided, and the lifting process of the screw rod 7 is realized by rotating the other of the screw block 6 and the screw rod 7.

According to the utility model, the stop piece is arranged, so that one of the screw blocks 6 or the screw rods 7 and the sleeve 5 do not rotate relatively, the lifting process of the screw rods 7 can be realized by rotating the other one of the screw blocks 6 and the screw rods 7, the lifting process of the jacking mechanism can be independently realized, and the condition that the screw rods 7 and the screw blocks 6 rotate synchronously is avoided. During the use, through the height of adjusting screw rod 7, guarantee that screw rod 7 highly be little less than prefabricated T roof beam diaphragm lower surface and the height between the ground to place layer board 1 and a plurality of climbing mechanism with prefabricated T roof beam diaphragm below, through fine setting screw rod 7 height again, make layer board 1 with prefabricated T roof beam diaphragm lower surface butt can. Because the plurality of jacking mechanisms are of independent structures when in use, the lifting process of the single screw rod 7 does not influence the lifting process of other screw rods 7, and the situation that the screw blocks 6 are blocked can not occur. The supporting device can realize temporary support of the diaphragm plate and avoid cracking of the diaphragm plate of the prefabricated T beam.

The layer board 1 is along perpendicular fixedly connected with curb plate 2 of length direction's one end below, and curb plate 2 is channel-section steel structure too, fixedly connected with diagonal brace 3 between layer board 1 and the curb plate 2, and curb plate 2 and prefabricated T roof beam's web butt, diagonal brace 3 play the effect of reinforcing structure stability.

Preferably, the screw block 6 is abutted on the upper surface of the sleeve 5, the screw block 6 is preferably an adjusting nut, a chute 8 is arranged on the side wall of the sleeve 5, the chute 8 is arranged in the vertical direction, the stopping piece is a first pin 9, the first pin 9 is in sliding connection with the chute 8, and the first pin 9 is fixedly connected with the lower end of the screw 7 vertically.

Optionally, the upper end of the screw 7 is fixedly connected with a jacking 10, and the jacking 10 is abutted with the lower surface of the supporting plate 1.

During the use, because first pin 9 and spout 8 sliding connection, screw rod 7 only can realize reciprocating, can not carry out relative rotation between screw rod 7 and the sleeve pipe 5, through rotating screw piece 6, can realize the lift process of screw rod 7, through adjusting the height of screw rod 7, can realize the supporting process to prefabricated T Liang Hengge board.

Embodiment two:

Referring to fig. 3 to 4, the present embodiment is different from the second embodiment in the structure of the stopper.

Specifically, the stop piece is a second pin 11, the screw block 6 is embedded in the sleeve 5, the second pin 11 penetrates through the screw block 6 along the horizontal direction, and two ends of the second pin 11 are fixedly connected with the sleeve 5 respectively. Relative rotation can not take place between screw block 6 and sleeve pipe 5, through rotating screw rod 7, can realize screw rod 7 high regulation process.

In addition, the utility model also comprises a sleeve 12, a clamping block 13 and a driving assembly, wherein the opening of the sleeve 12 is downwards arranged, the cross section of the outer side wall of the sleeve 5 along the horizontal direction is polygonal, the inner side wall of the sleeve 12 is matched with the outer side wall of the sleeve 5 and is in sliding connection, the sleeve 12 can only slide along the length direction of the sleeve 5, the sleeve 12 and the sleeve 5 cannot rotate relatively, and the top surface of the sleeve 12 is abutted against the lower surface of the supporting plate 1; the clamping block 13 is fixedly connected in the sleeve 12, and the clamping block 13 is rotationally connected with the upper end of the screw rod 7; the driving assembly is used for driving the screw rod 7 to rotate.

Optionally, the drive assembly includes a worm gear 14 and a worm 15. Wherein the worm wheel 14 is positioned above the clamping block 13, and the worm wheel 14 is connected with the upper end of the screw rod 7 through a key; the worm 15 is rotatably connected in the sleeve 12, and the worm 15 is in meshed transmission with the worm wheel 14.

Specifically, to facilitate rotation of the worm 15, a first crank 16 is detachably connected to one end of the worm 15 through the sidewall of the sleeve 12.

The worm 15 is driven to rotate by rotating the first crank 16, and the worm wheel 14 is further driven to rotate, so that the rotation process of the screw 7 is realized, and finally the lifting process of the sleeve 12 is realized. By adjusting the height of sleeve 12, a support process for the prefabricated T Liang Hengge panel can be achieved.

Embodiment III:

the difference between the present embodiment and the second embodiment is that the driving assembly has a different structure.

Specifically, the drive assembly includes: a first bevel gear (not shown), a second bevel gear (not shown), and a second crank (not shown). Wherein the first bevel gear is positioned above the clamping block 13 and is connected with the upper end key of the screw rod 7; the second bevel gear is rotatably connected within the sleeve 12 and is in meshed drive with the first bevel gear.

Specifically, in order to facilitate the rotation of the second bevel gear, a second crank is detachably connected to one end of the rotation shaft keyed to the second bevel gear through the sidewall of the sleeve 12.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims (10)

1. A prefabricated T-beam diaphragm support apparatus comprising:

a pallet (1);

Along layer board (1) length direction set up and with a plurality of climbing mechanism of layer board (1) lower surface butt, climbing mechanism includes bottom plate (4), sleeve pipe (5), screw rod (6), screw rod (7) and keeps off the piece, bottom plate (4) upper surface with sleeve pipe (5) fixed connection, sleeve pipe (5) are provided with on sleeve pipe (5) screw rod (6), screw rod (6) and screw rod (7) threaded connection, the upper end of screw rod (7) with layer board (1) is connected, just the lower extreme of screw rod (7) is pegged graft the upper end of sleeve pipe (5), one of screw rod (6) and screw rod (7) pass through the piece of keeping off with sleeve pipe (5) are connected for realize do not take place relative rotation between one of screw rod (6) and screw rod (7) and sleeve pipe (5) through rotating screw rod (7) in order to realize lift process of another screw rod (7).

2. The prefabricated T-beam diaphragm support device according to claim 1, wherein the screw block (6) is abutted to the upper surface of the sleeve (5), a chute (8) is arranged on the side wall of the sleeve (5) along the vertical direction, the stop member is a first pin (9), the first pin (9) is slidably connected with the chute (8), and the first pin (9) is fixedly connected with the lower end of the screw (7) vertically.

3. The prefabricated T beam diaphragm support device according to claim 2, wherein the upper end of the screw rod (7) is fixedly connected with a jacking (10), and the jacking (10) is abutted with the lower surface of the supporting plate (1).

4. The prefabricated T-beam diaphragm support device according to claim 1, wherein the stop member is a second pin (11), the screw block (6) is embedded in the sleeve (5), the second pin (11) penetrates through the screw block (6) along the horizontal direction, and two ends of the second pin (11) are fixedly connected with the sleeve (5) respectively.

5. The precast T-beam diaphragm support apparatus of claim 4, further comprising:

The cross section of the outer side wall of the sleeve (5) along the horizontal direction is polygonal, the inner side wall of the sleeve (12) is matched with and slidingly connected with the outer side wall of the sleeve (5), and the top surface of the sleeve (12) is abutted with the lower surface of the supporting plate (1);

the clamping block (13) is fixedly connected in the sleeve (12), and the clamping block (13) is rotationally connected with the upper end of the screw rod (7); and

And the driving assembly is used for driving the screw rod (7) to rotate.

6. The precast T-beam diaphragm support apparatus of claim 5, wherein the drive assembly comprises:

a worm wheel (14) which is positioned above the clamping block (13) and is connected with the upper end of the screw rod (7) in a key way; and

And a worm (15) which is rotatably connected in the sleeve (12) and is meshed with the worm wheel (14) for transmission.

7. The prefabricated T-beam diaphragm support arrangement of claim 6, wherein one end of the worm (15) is detachably connected to a first crank (16) through the side wall of the sleeve (12).

8. The precast T-beam diaphragm support apparatus of claim 5, wherein the drive assembly comprises:

the first bevel gear is positioned above the clamping block (13) and is connected with the upper end of the screw rod (7) in a key way; and

And a second bevel gear which is rotatably connected in the sleeve (12) and is meshed with the first bevel gear for transmission.

9. The prefabricated T-beam diaphragm support apparatus of claim 8 wherein said second bevel gear keyed swivel shaft has a second crank removably attached at one end thereof through said sleeve (12) sidewall.

10. The prefabricated T-beam diaphragm support device according to any one of claims 1 to 9, wherein a side plate (2) is fixedly connected vertically below one end of the pallet (1) in the length direction, and an inclined stay bar (3) is fixedly connected between the pallet (1) and the side plate (2).