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

A prefabricated T-beam diaphragm support device

Technical Field

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

Background Art

Precast beams are a common structural form in bridge construction. The diaphragms of precast beams play an important role in connecting and supporting bridge structures. After the casting of the precast T-beam is completed and the formwork is removed, the diaphragms are in a suspended state. Support must be set at the bottom to prevent cracks from forming between the diaphragms of the precast beams themselves or between the diaphragms of the precast beams and the flange plates and webs, causing damage. Steel bars, concrete blocks or wood blocks are usually used as temporary supports.

However, this method of using steel bars, concrete blocks or wood blocks as temporary supports is not ideal. Since these supporting materials cannot fit tightly to the diaphragms of the precast beams, they are prone to displacement over time and cannot effectively provide support. As a result, cracks may form on the diaphragms of the precast beams due to their own weight, or cracks may form between the diaphragms of the precast beams and the flange plates and web plates.

The patent with announcement number CN212771957U discloses a prefabricated T-beam diaphragm top supporting device, including a bottom plate, two steel pipes are vertically welded on the bottom plate, a screw is inserted in each steel pipe, a nut is screwed on the screw, the diameter of the nut is larger than the diameter of the steel pipe, the nut is supported on the top of the steel pipe, the lower end of the screw is suspended in the steel pipe, the upper end of the screw protrudes to a certain height outside the steel pipe, and a supporting plate is welded on the top of the screw. The patent can support diaphragms of different heights by adjusting the height of the screw. However, during the use of the patent, the rotation of the nut is likely to cause the screw to rotate synchronously, resulting in the inability to adjust the height of the screw.

The patent with announcement number CN210529510U discloses a temporary support device for prefabricated beam diaphragms, including a top plate, a screw, a nut, a steel pipe and a base, wherein the top plate is connected to the screw by a connector; the steel pipe is connected to the base by a connector; the nut is sleeved on the screw; the screw extends into the steel pipe, and the diameter of the steel pipe is greater than the diameter of the screw and smaller than the diameter of the outer ring of the nut. When in use, the screw is screwed onto the nut and inserted into the steel pipe on the base. According to the suspended height of the diaphragm, the height of the top plate is adjusted and placed under the prefabricated beam diaphragm. By rotating the nut, the length of the screw extending into the steel pipe is fine-tuned to achieve the up and down movement of the top plate and the close contact with the diaphragm, thereby ensuring the support effect and preventing the prefabricated beam diaphragm from cracking. However, since the top plate is simultaneously clamped with multiple screws, when a single screw is rotated, when the lifting height of the single screw is long, it is easy to cause the top plate to deflect, causing the single nut to be stuck. It is necessary to synchronously and evenly rotate multiple nuts or to lift the top plate and then rotate the nut to solve the above problem, resulting in a cumbersome operation process.

In view of this, how to change the current situation in which the screw rotates synchronously when the nut is screwed in the existing prefabricated T-beam diaphragm support device, the top plate deflects and the nut is stuck, has become a technical problem that technical personnel in this field urgently need to solve.

Utility Model Content

The utility model aims to provide a prefabricated T-beam diaphragm supporting device to overcome the above-mentioned shortcomings.

In order to achieve the above purpose, the technical solution of the utility model is: a prefabricated T-beam diaphragm support device, comprising:

Pallet;

A plurality of lifting mechanisms are arranged along the length direction of the support plate and abut against the lower surface of the support plate, the lifting mechanisms include a base plate, a sleeve, a screw block, a screw rod and a stopper, the upper surface of the base plate is fixedly connected to the sleeve, the sleeve is arranged in the vertical direction, the screw block is arranged on the sleeve, the screw block is threadedly connected to the screw rod, the upper end of the screw rod is connected to the support plate, and 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 to the sleeve through a stopper, so as to achieve no relative rotation between the screw block and the screw rod and the sleeve, and the lifting process of the screw rod is achieved by rotating the other of the screw block and the screw rod.

Furthermore, the screw block abuts against the upper surface of the sleeve, a slide groove is arranged on the side wall of the sleeve in the vertical direction, and the stopper is a first pin, the first pin is slidably connected to the slide groove, and the first pin is vertically fixedly connected to the lower end of the screw rod.

Furthermore, the upper end of the screw rod is fixedly connected with a jacking support, and the jacking support abuts against the lower surface of the support plate.

Furthermore, the stopper is a second pin, the screw block is embedded in the sleeve, the second pin passes through the screw block in a horizontal direction, and both ends of the second pin are fixedly connected to the sleeve respectively.

Furthermore, it also includes:

A sleeve with a downward opening, wherein the cross-sectional shape of the outer wall of the sleeve along the horizontal direction is a polygon, the inner wall of the sleeve is adapted to and slidably connected with the outer wall of the sleeve, and the top surface of the sleeve abuts against the lower surface of the support plate;

A clamping block is fixedly connected to the sleeve, and the clamping block is rotatably connected to the upper end of the screw; and

A driving assembly is used to drive the screw to rotate.

Furthermore, the driving assembly comprises:

a worm wheel located above the block and key-connected to the upper end of the screw; and

A worm which is rotatably connected in the sleeve and meshes with the worm wheel for transmission.

Furthermore, one end of the worm screw passes through the side wall of the sleeve and is detachably connected to a first crank.

Furthermore, the driving assembly comprises:

a first bevel gear located above the block and key-connected to the upper end of the screw; and

A second bevel gear is rotatably connected in the sleeve and meshes with the first bevel gear for transmission.

Furthermore, one end of the rotating shaft connected to the second bevel gear key passes through the side wall of the sleeve and is detachably connected to a second crank.

Furthermore, a side plate is vertically fixedly connected below one end of the support plate along the length direction, and a diagonal brace 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:

In the utility model, a stopper is provided so that one of the screw block or the screw rod and the sleeve do not rotate relative to each other, and the lifting process of the screw rod can be realized by rotating the other of the screw block and the screw rod, so that the lifting mechanism can independently realize the lifting process, and the screw rod and the screw block will not rotate synchronously. During use, since the multiple lifting mechanisms are independent structures, the lifting process of a single screw rod does not affect the lifting process of other screws, and the screw block will not get stuck. The support device of the utility model can realize temporary support for the diaphragm and avoid cracking of the prefabricated T-beam diaphragm.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

FIG1 is a schematic diagram of the overall structure of a first embodiment of a prefabricated T-beam diaphragm support device of the utility model;

FIG2 is a cross-sectional view of a first embodiment of a prefabricated T-beam diaphragm support device of the utility model;

FIG3 is a schematic diagram of the overall structure of a second embodiment of a prefabricated T-beam diaphragm support device according to the utility model;

FIG4 is a cross-sectional view of a second embodiment of the prefabricated T-beam diaphragm support device of the utility model.

Figure numerals: 1. support plate; 2. side plate; 3. diagonal support rod; 4. bottom plate; 5. sleeve; 6. screw block; 7. screw rod; 8. slide groove; 9. first pin; 10. top support; 11. second pin; 12. sleeve; 13. block; 14. worm gear; 15. worm; 16. first crank.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

Embodiment 1:

1-2 , the utility model provides a prefabricated T-beam diaphragm support device, including a support plate 1 and a jacking mechanism.

The support plate 1 is used to abut against the lower surface of the prefabricated T-beam cross diaphragm. The material of the support plate 1 is channel steel, and the opening of the channel steel faces downward. The middle plate of the channel steel abuts against the lower surface of the prefabricated T-beam cross diaphragm. In order to ensure that the contact area between the support plate 1 and the Yokogawa plate is maximized, the projection dimension of the middle plate of the channel steel in the vertical direction is larger than the projection dimension of the lower surface of the prefabricated T-beam cross diaphragm along the vertical direction in the utility model.

There are multiple lifting assemblies, and the lifting assemblies are in contact with the lower surface of the support plate 1, and the multiple lifting assemblies are arranged at intervals along the length direction of the support plate 1. The lifting mechanism includes a base plate 4, a sleeve 5, a screw block 6, a screw rod 7 and a stopper. The upper surface of the base plate 4 is fixedly connected to the sleeve 5, and the sleeve 5 is arranged along the vertical direction. In order to improve the stability of the sleeve 5, a rib plate can be added between the base plate 4 and the sleeve 5. A screw block 6 is arranged on the sleeve 5, and the screw block 6 is threadedly connected to the screw rod 7. The upper end of the screw rod 7 is connected to the support plate 1, and 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 to the sleeve 5 through a stopper, which is used to achieve that one of the screw block 6 and the screw rod 7 does not rotate relative to the sleeve 5, 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.

In the utility model, a stopper is provided so that one of the screw block 6 or the screw rod 7 and the sleeve 5 do not rotate relative to each other, and the lifting process of the screw rod 7 can be realized by rotating the other of the screw block 6 and the screw rod 7, so that the lifting mechanism can independently realize the lifting process, and the screw rod 7 will not rotate synchronously with the screw block 6. When in use, the height of the screw rod 7 is adjusted to ensure that the height of the screw rod 7 is slightly lower than the height between the lower surface of the prefabricated T-beam diaphragm and the ground, and the support plate 1 and multiple lifting mechanisms are placed under the prefabricated T-beam diaphragm, and the height of the screw rod 7 is fine-tuned again to make the support plate 1 abut against the lower surface of the prefabricated T-beam diaphragm. Since multiple lifting mechanisms are independent structures when in use, the lifting process of a single screw rod 7 does not affect the lifting process of other screw rods 7, and the screw block 6 will not get stuck. The support device of the utility model can realize temporary support of the diaphragm to avoid cracking of the prefabricated T-beam diaphragm.

A side plate 2 is vertically fixedly connected to the lower end of the support plate 1 along the length direction. The side plate 2 is also a channel steel structure. A diagonal brace 3 is fixedly connected between the support plate 1 and the side plate 2. The side plate 2 abuts against the web of the prefabricated T-beam. The diagonal brace 3 serves to enhance the stability of the structure.

Preferably, the screw block 6 abuts against the upper surface of the sleeve 5, and the screw block 6 is preferably an adjusting nut. A slide groove 8 is arranged on the side wall of the sleeve 5, and the slide groove 8 is arranged in the vertical direction. The stopper is a first pin 9, and the first pin 9 is slidably connected to the slide groove 8, and the first pin 9 is vertically fixedly connected to the lower end of the screw rod 7.

Optionally, a jacking support 10 is fixedly connected to the upper end of the screw rod 7 , and the jacking support 10 abuts against the lower surface of the support plate 1 .

When in use, due to the sliding connection between the first pin 9 and the slide groove 8, the screw rod 7 can only move up and down, and the screw rod 7 and the sleeve 5 cannot rotate relative to each other. By rotating the screw block 6, the lifting process of the screw rod 7 can be realized, and by adjusting the height of the screw rod 7, the support process of the prefabricated T-beam cross partition can be realized.

Embodiment 2:

3-4 , the difference between this embodiment and the second embodiment is that the structure of the stopper is different.

Specifically, the stopper is a second pin 11, the screw block 6 is embedded in the sleeve 5, the second pin 11 passes through the screw block 6 in the horizontal direction, and both ends of the second pin 11 are respectively fixedly connected to the sleeve 5. The screw block 6 and the sleeve 5 cannot rotate relative to each other, and the height adjustment process of the screw rod 7 can be achieved by rotating the screw rod 7.

In addition, the utility model also includes a sleeve 12, a block 13 and a drive assembly. The opening of the sleeve 12 is set downward, and the cross-sectional shape of the outer wall of the sleeve 5 along the horizontal direction is a polygon. The inner wall of the sleeve 12 is adapted to the outer wall of the sleeve 5 and is slidably connected. The sleeve 12 can only slide along the length direction of the sleeve 5, and the sleeve 12 and the sleeve 5 cannot rotate relative to each other. The top surface of the sleeve 12 abuts against the lower surface of the support plate 1; the block 13 is fixedly connected in the sleeve 12, and the block 13 is rotatably connected to the upper end of the screw 7; the drive assembly is used to drive the screw 7 to rotate.

Optionally, the driving assembly includes a worm wheel 14 and a worm 15. The worm wheel 14 is located above the block 13, and the worm wheel 14 is keyed to the upper end of the screw 7; the worm 15 is rotatably connected in the sleeve 12, and the worm 15 and the worm wheel 14 are meshed for transmission.

Specifically, in order to facilitate the rotation of the worm 15 , one end of the worm 15 passes through the side wall of the sleeve 12 and is detachably connected to the first crank 16 .

The worm 15 is driven to rotate by rotating the first crank 16, and the worm wheel 14 is further driven to rotate, thereby realizing the rotation process of the screw 7, and finally realizing the lifting process of the sleeve 12. By adjusting the height of the sleeve 12, the support process of the prefabricated T-beam diaphragm can be realized.

Embodiment three:

The difference between this embodiment and the second embodiment is that the structure of the driving assembly is different.

Specifically, the driving assembly includes: a first bevel gear (not shown in the figure), a second bevel gear (not shown in the figure) and a second crank (not shown in the figure). The first bevel gear is located above the block 13, and the first bevel gear is keyed to the upper end of the screw 7; the second bevel gear is rotatably connected in the sleeve 12, and the second bevel gear is meshed with the first bevel gear for transmission.

Specifically, in order to facilitate the rotation of the second bevel gear, one end of the rotating shaft connected to the key of the second bevel gear passes through the side wall of the sleeve 12 and is detachably connected to the second crank.

In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

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).