A prefabricated bridge construction beam and slab support device

Abstract

The utility model discloses a prefabricated bridge construction beam and slab support device, which belongs to the technical field of prefabricated bridge construction related equipment, and comprises a mobile base and a support unit; the mobile base has a corresponding supporting force, and a support frame is arranged on the supporting working surface, and the top of the support frame forms a supporting platform; the support unit is erected above the mobile base through a lifting mechanism, and is located above the supporting platform, and has a corresponding bearing space and corresponding supporting force, the support unit comprises a placement plate, which is erected above the mobile base, and can carry out bearing and supporting operations at different heights above the supporting platform through the lifting mechanism; the clamping unit is arranged on both sides of the placement plate, and performs corresponding clamping and positioning operations. Through the above structure, the prefabricated beam and slab can be supported at different heights, and multi-point support and positioning can be performed to improve the stability of the support, and at the same time, the prefabricated beam and slab can be clamped and positioned to reduce the offset amplitude.

Description

Technical Field

[0001] The utility model belongs to the technical field of equipment related to prefabricated bridge construction, and in particular relates to a beam and slab supporting device for prefabricated bridge construction. Background Art

[0002] Bridge engineering is a branch of civil engineering, which includes bridge survey, design, construction, maintenance and verification. Bridge construction includes bridge substructure construction, bridge superstructure construction and beam bridge construction. During bridge construction, supporting equipment is needed to support precast panels.

[0003] The existing support device can only simply support the prefabricated beams and slabs. During construction, the prefabricated slabs are prone to displacement due to pressure and vibration, and when they are displaced, the support position on the upper part of the support device is easily displaced, affecting the overall support stability. In addition, when the prefabricated beams and slabs are displaced, the support position on the upper part of the support device will be worn. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a prefabricated bridge construction beam and slab support device, which can support the prefabricated beam and slab at different heights, and perform multi-point support and positioning to improve the stability of the support. At the same time, the prefabricated beam and slab can be clamped and positioned to reduce the deviation amplitude.

[0005] The technical solution adopted by the utility model is as follows: a prefabricated bridge construction beam and slab support device, including a mobile base and a support unit; the mobile base has a corresponding supporting force, and a support frame is set on the supporting working surface, and the top of the support frame forms a supporting platform; the support unit is erected above the mobile base through a lifting mechanism, and is located above the supporting platform, and has a corresponding bearing space and corresponding supporting force.

[0006] Furthermore, the support unit includes a placement plate, which is erected above the mobile base and can perform load-bearing and supporting operations at different heights above the support platform through a lifting mechanism; a clamping unit is arranged on both sides of the placement plate to perform corresponding clamping and positioning operations.

[0007] Furthermore, long positioning rods are respectively provided at both ends of the bottom of the placement plate, and the long positioning rods movably penetrate the support platform. Positioning holes are provided at intervals above and below the long positioning rods, and positioning cross rods matching the positioning holes can be inserted into the positioning holes. The positioning cross rod can be located at the top of the support platform.

[0008] Furthermore, adjustment support assemblies are respectively provided at both ends of the mobile base, including an adjustment rod and a support seat installed at the bottom of the adjustment rod. The adjustment rod movably penetrates the support working surface of the mobile base and is threadedly connected to the support working surface.

[0009] Furthermore, the clamping unit includes fixed side plates, which are respectively fixed on the two side edges of the placement plate; a clamping plate, which corresponds one-to-one to the fixed side plates and is movably installed on the inner side of the fixed side plates through a sliding support; and an elastic extrusion part, which is installed on the inner side of the fixed side plate and is located between the clamping plate and the inner side of the fixed side plate.

[0010] Furthermore, the elastic extrusion portion includes a buffer airbag and auxiliary airbags arranged on both sides of the buffer airbag, the auxiliary airbags are respectively connected to the buffer airbags, the buffer airbags are fixed on the inner side of the fixed side plate, the front side of the buffer airbag is arc-shaped and convex toward the clamping plate, the front side of the auxiliary airbag is connected to the clamping plate through an elastic rod, when the buffer airbag is inflated, the elastic rod and the buffer airbag push the clamping plate away from the fixed side plate, and a sealing ring is set on the sliding support member that passes through the auxiliary airbag part.

[0011] Furthermore, the support frame is provided with positioning plates spaced apart from each other in the upper and lower parts of the space below the support platform, and the positioning plates are provided with through holes for the positioning long rod to movably pass through.

[0012] Furthermore, the middle portion of the placement plate is concave to form a filling groove, and the filling groove is filled with a wear-resistant layer formed by a wear-resistant rubber material.

[0013] Furthermore, the lifting mechanism is a hydraulic lifting mechanism, including a middle hydraulic column and an outer hydraulic column. The middle hydraulic column is installed in the middle position of the mobile base supporting the working surface. The telescopic end of the middle hydraulic column is connected to the bottom of the placement plate through a shaft sleeve. The middle hydraulic column movably penetrates the positioning plate. The outer hydraulic columns are distributed at the four corners of the mobile base supporting the working surface. The telescopic ends of the outer hydraulic columns are respectively connected to the four corners of the bottom of the placement plate through shaft sleeves.

[0014] Furthermore, reinforcing ribs are provided at the bottom of the placement plate.

[0015] After adopting the above structure, the utility model has the following beneficial effects:

[0016] (1) By setting up a lifting mechanism, the placement plate can be supported at different heights, and the lifting mechanism supports the placement plate at multiple locations, cooperates with the lifting limit of the positioning long rod and cooperates with the positioning cross bar and positioning plate at different heights to ensure the stability of the support operation;

[0017] (2) The precast beam slab on the placement plate is adaptively clamped by the provided clamping unit, and a reverse force is applied when the precast beam slab is offset to reduce the offset amplitude. A wear-resistant layer is installed on the placement plate to reduce the wear of the placement plate and facilitate replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0019] Figure 1 This is a schematic diagram of the overall structure of a prefabricated bridge construction beam and slab support device proposed by the utility model;

[0020] Figure 2 This is a front view of a prefabricated bridge construction beam and slab support device proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a clamping unit of a prefabricated bridge construction beam and slab support device proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure from another angle of a prefabricated bridge construction beam and slab support device proposed by the utility model.

[0023] In the attached drawings: 1. mobile base, 2. support frame, 3. support platform, 4. placement plate, 5. positioning long rod, 6. positioning cross bar, 7. adjustment rod, 8. support seat, 9. fixed side plate, 10. cushioning airbag, 11. clamping plate, 12. auxiliary airbag, 13. elastic rod, 14. positioning plate, 15. wear-resistant layer, 16. middle hydraulic column, 17. outer hydraulic column, 18. reinforcing ribs. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] like Figure 1-4As shown, a prefabricated bridge construction beam and slab support device comprises a mobile base 1 and a support unit; the mobile base 1 has a corresponding supporting force, and a support frame 2 is arranged on the supporting working surface, and a support platform 3 is formed at the top of the support frame 2. In order to improve the overall stability of the support frame 2, the support frame 2 is provided with positioning plates 14 at intervals above and below the space below the support platform 3, and a through hole is provided on the positioning plate 14 for the positioning long rod 5 to movably pass through. In this embodiment, it is preferred that the support frame 2 is arranged in a trapezoidal shape as a whole; the support unit is erected above the mobile base 1 through a lifting mechanism, and is located above the support platform 3, and has a corresponding bearing space and corresponding supporting force. Adjustable support components are respectively provided at both ends of the mobile base 1, including an adjusting rod 7 and a support seat 8 installed at the bottom of the adjusting rod 7. The adjusting rod 7 movably penetrates the support working surface of the mobile base 1 and is threadedly connected to the support working surface. At the support working position, the adjusting rod 7 can be rotated to support the support seat 8 on the ground. For uneven ground, the support seat 8 can be adjusted by adjusting the adjusting rod 7 so that the support seat 8 can be placed stably for the entire device. The lifting mechanism can be a hydraulic lifting mechanism connected to a hydraulic working system. The support unit can be set up at support working positions of different heights to adapt to more support working scenarios.

[0027] In some preferred embodiments, the support unit includes a placement plate 4 and a clamping unit. The clamping units are arranged on both sides of the placement plate 4 to perform corresponding clamping and positioning operations. The placement plate 4 is mounted above the mobile base 1 and can be used to carry out load-bearing and supporting operations at different heights above the support platform 3 through a lifting mechanism. The middle part of the placement plate 4 is concave to form a filling groove. The filling groove is filled with a wear-resistant layer 15 formed of a wear-resistant rubber material, which can be replaced when worn. In addition, it should be noted that the lifting mechanism is a hydraulic lifting mechanism, including an intermediate hydraulic column 16 and an outer hydraulic column 17. The intermediate hydraulic The column 16 is installed in the middle position of the working surface supported by the mobile base 1. The telescopic end of the middle hydraulic column 16 is connected to the bottom of the placement plate 4 through a shaft sleeve. The middle hydraulic column 16 movably passes through the positioning plate 14. The outer hydraulic columns 17 are distributed at the four corners of the working surface supported by the mobile base 1. The telescopic ends of the outer hydraulic columns 17 are respectively connected to the four corners of the bottom of the placement plate 4 through shaft sleeves. The telescopic ends of the middle hydraulic column 16 and the outer hydraulic column 17 are connected to the bottom of the placement plate 4 through shaft sleeves. The shaft sleeves are assembled at the bottom of the placement plate 4. The placement plate 4 is easy to wear, and this connection method is convenient for separate replacement.

[0028] Among them, further, positioning long rods 5 are respectively arranged at both ends of the bottom of the placement plate 4, and the positioning long rods 5 movably penetrate the support platform 3. Positioning holes are arranged at intervals up and down on the positioning long rods 5, and positioning cross bars 6 matching the positioning holes can be inserted into the positioning holes. The positioning cross bars 6 can be located at the top of the support platform 3. When the placement plate 4 is lifted or lowered, the positioning long rods 5 penetrate the support platform 3 to lift and lower the placement plate 4, and the lifting process of the placement plate 4 is positioned. After lifting to a suitable support height, the positioning cross bars 6 pass through the positioning holes to further limit the position of the positioning long rods 5, and cooperate with the multi-point support of the lifting mechanism to improve the support stability of the placement plate 4. Here, preferably, reinforcing ribs 18 are arranged at the bottom of the placement plate 4 to enhance the strength of the placement plate 4.

[0029] In some preferred embodiments, the clamping unit includes a fixed side plate 9, which is respectively fixed on the two side edges of the placement plate 4; a clamping plate 11, which corresponds to the fixed side plate 9 one by one and is movably installed on the inner side of the fixed side plate 9 through a sliding support; and an elastic extrusion portion, which is installed on the inner side of the fixed side plate 9 and is located between the clamping plate 11 and the inner side of the fixed side plate 9. Among them, the elastic extrusion portion includes a buffer airbag 10 and an auxiliary airbag 12 arranged on both sides of the buffer airbag 10, the auxiliary airbag 12 is respectively connected to the buffer airbag 10, the buffer airbag 10 is fixed on the inner side of the fixed side plate 9, the front side of the buffer airbag 10 is arc-shaped and convex in the direction close to the clamping plate 11, and the front side of the auxiliary airbag 12 is connected to the clamping plate 11 through an elastic rod 13. In the initial state, the elastic rod 13 and the buffer airbag 10 push the clamp in the direction away from the fixed side plate 9. The holding plate 11 and the sliding support member are provided with sealing rings through the auxiliary airbag 12. When the prefabricated plate is placed on the placement plate 4, the prefabricated beam plate squeezes the clamping plate 11 and the buffer airbag 10 to both sides. When the buffer airbag 10 is squeezed, the internal airflow partially enters the auxiliary airbags 12 on both sides. The auxiliary airbag 12 bulges and deforms toward the clamping plate 11. The elastic rod 13 pushes the squeezing plate forward. The auxiliary airbag 12 and the buffer airbag 10 apply a reverse force to the clamping plate 11, so that the clamping plate 11 is clamped on both sides of the prefabricated beam plate. When the beam plate is vibrated and deflected, the beam plate squeezes the corresponding buffer airbag 10 and the auxiliary airbag 12. The airbag absorbs energy accordingly to reduce the amplitude of vibration displacement and reduce the wear on the placement plate 4. Combined with multi-point support and positioning at different heights, the stability of the overall support operation of the device is maintained during construction.

[0030] It should be noted that the cushioning airbag 10 and the auxiliary airbag 12 can be configured to deform only in the front direction approaching and in the direction of the principle clamping plate 11 when deformed. Specifically, a pressure-resistant hard outer layer is installed on the outer walls on both sides of the above-mentioned direction to limit the deformation direction of the auxiliary airbag 12 and the cushioning airbag 10.

[0031] During specific use, the device is transferred to a suitable supporting working position, and the height of the placement plate 4 is adjusted to support the prefabricated beam plate at different heights. The middle hydraulic column 16 and the outer hydraulic column 17 provide stable support at the middle and four corners of the bottom of the placement plate 4. While the placement plate 4 is stably supported, it is positioned by the positioning long rod 5 at the bottom. The positioning cross rod 6 passes through the positioning hole and rests on the top of the support platform 3. In addition, the positioning plates 14 arranged up and down in the support frame 2 limit the telescopic end parts of the positioning long rod 5 and the middle hydraulic column 16.

[0032] After placing the prefabricated beam on the placement plate 4, the buffer airbag 10 is connected to the air pump to inflate the buffer airbag 10, so that the buffer airbag 10 pushes the clamping plate 11 toward the prefabricated plate, and the clamping plate 11 is clamped on both sides of the prefabricated beam. When the prefabricated beam is vibrated, the prefabricated beam is squeezed toward the corresponding buffer airbag 10 to absorb energy and unload force by deformation, thereby reducing the displacement amplitude of the prefabricated beam.

[0033] Although the embodiments of the utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the scope of protection of the utility model.

Claims

1. A prefabricated bridge construction beam and slab support device, characterized in that: include: The mobile base has a corresponding supporting force, and a supporting frame is arranged on the supporting working surface, and the top of the supporting frame forms a supporting platform; The support unit is erected above the mobile base through a lifting mechanism and is located above the support platform, and has corresponding bearing space and corresponding supporting force.

2. A prefabricated bridge construction beam and slab support device according to claim 1, characterized in that: The support unit includes a placement plate, which is mounted above the mobile base and can perform load-bearing support operations at different heights above the support platform through a lifting mechanism; The clamping units are arranged on both sides of the placement plate to perform corresponding clamping and positioning operations.

3. A prefabricated bridge construction beam and slab support device according to claim 2, characterized in that: Long positioning rods are respectively arranged at both ends of the bottom of the placement plate, and the long positioning rods movably penetrate the support platform. Positioning holes are arranged at intervals up and down on the long positioning rods, and positioning cross rods matching the positioning holes can be inserted into the positioning holes. The positioning cross rod can be located at the top of the support platform.

4. A prefabricated bridge construction beam and slab support device according to claim 1, characterized in that: Adjustment support components are respectively arranged at both ends of the mobile base, including an adjustment rod and a support seat installed at the bottom of the adjustment rod. The adjustment rod movably penetrates the support working surface of the mobile base and is threadedly connected to the support working surface.

5. The prefabricated bridge construction beam and slab support device according to claim 2, characterized in that: The clamping unit includes fixed side plates, which are respectively fixed on the two side edges of the placement plate; a clamping plate, which corresponds to the fixed side plates one by one and is movably installed on the inner side of the fixed side plates through a sliding support; and an elastic extrusion part, which is installed on the inner side of the fixed side plate and is located between the clamping plate and the inner side of the fixed side plate.

6. A prefabricated bridge construction beam and slab support device according to claim 5, characterized in that: The elastic extrusion portion includes a buffer airbag and auxiliary airbags arranged on both sides of the buffer airbag, the auxiliary airbags are respectively connected to the buffer airbags, the buffer airbags are fixed on the inner side of the fixed side plate, the front side of the buffer airbag is arc-shaped and convex toward the clamping plate, and the front side of the auxiliary airbag is connected to the clamping plate through an elastic rod.

7. The prefabricated bridge construction beam and slab support device according to claim 1, characterized in that: The support frame is provided with positioning plates spaced apart from each other in the upper and lower parts of the space below the support platform, and a through hole is provided on the positioning plate for the positioning long rod to movably pass through.

8. The prefabricated bridge construction beam and slab support device according to claim 2, characterized in that: The middle part of the placement plate is concave to form a filling groove, and the filling groove is filled with a wear-resistant layer formed by a wear-resistant rubber material.

9. The prefabricated bridge construction beam and slab support device according to claim 2, characterized in that: The lifting mechanism is a hydraulic lifting mechanism, including a middle hydraulic column and an outer hydraulic column. The middle hydraulic column is installed in the middle position of the mobile base supporting the working surface. The telescopic end of the middle hydraulic column is connected to the bottom of the placement plate through a shaft sleeve. The middle hydraulic column movably penetrates the positioning plate. The outer hydraulic columns are distributed at the four corners of the mobile base supporting the working surface. The telescopic ends of the outer hydraulic columns are respectively connected to the four corners of the bottom of the placement plate through shaft sleeves.

10. The prefabricated bridge construction beam and slab support device according to claim 2, characterized in that: A reinforcing rib is arranged at the bottom of the placement plate.

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