Upward moving formwork supporting leg structure

Abstract

The utility model relates to the technical field of bridge construction, in particular to an ascending type movable formwork supporting leg structure, which comprises a cross beam, a movable formwork, a movable formwork, a movable formwork, a movable formwork and a supporting leg, and is characterized in that the cross beam comprises a cross beam upper part and a cross beam lower part; the moving assembly comprises two moving trolleys of the same structure, and the two moving trolleys are arranged at the two ends of the cross beam correspondingly and are in sliding connection with the upper portion of the cross beam correspondingly so as to move on the cross beam; the supporting assembly comprises two supporting stand columns of the same structure, and the two supporting stand columns are symmetrically arranged at the two ends of the cross beam respectively, connected with the lower portion of the cross beam respectively and used for supporting the cross beam. The anchoring mechanism comprises two anchoring assemblies of the same structure, and the anchoring assemblies are symmetrically arranged in the middles of the two supporting stand columns respectively, connected with the lower portion of the cross beam respectively and used for supporting the cross beam. According to the utility model, the stability of the upward moving formwork can be ensured, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to an upward movable formwork support leg structure. Background Art

[0002] In the field of railway bridge construction, traditional construction methods often make construction more difficult when faced with restricted sites and steep mountainous areas, and it is difficult to ensure construction efficiency and safety. Especially in mountainous areas with complex terrain and steep terrain, the limitations of the construction site and the harsh natural environment have brought great challenges to the construction of railway bridges. Therefore, there is an urgent need for an advanced construction method that can adapt to the characteristics of restricted sites and steep mountainous areas to improve construction efficiency and ensure project quality and safety.

[0003] Mobile formwork is widely used in the construction of cast-in-place concrete box girders of highway bridges and railway bridges, and is divided into upward mobile formwork and downward mobile formwork. In conventional upward mobile formwork, the front legs are supported on the top of the pier. Due to the spatial interference between the front legs and the middle legs, the front legs can only be placed in the middle of the pier top, and the external space is used to install the middle legs. This layout causes the top of the front legs to only be supported on the main beam and the inner side of the nose bridge, reducing the safety of the mobile formwork. Due to the high density of steel bars on the pier top box girder, the construction is difficult and the process is complicated.

[0004] Chinese patent publication number CN209602963U discloses a front support leg of a mobile formwork, comprising: two support frames, respectively located below the corresponding main beams on the same side, the upper ends of the support frames are connected to the main beams through a walking mechanism, and the support frames move along the length direction of the main beam under the action of the walking mechanism; an upper crossbeam is installed horizontally in the middle part of the upper end of each support frame through a pin shaft I, and a bottom crossbeam is installed horizontally on the front and rear sides of the lower end of each support frame through a pin shaft III.

[0005] It can be seen that the above utility model has the following problems: it is difficult to ensure the stability of the upward movable formwork, and the construction efficiency is not high. Utility Model Content

[0006] To this end, the utility model provides an upward movable formwork support leg structure to overcome the problems in the prior art that it is difficult to ensure the stability of the upward movable formwork and the construction efficiency is low.

[0007] In order to achieve the above-mentioned purpose, the utility model provides an upward movable formwork support leg structure, comprising:

[0008] A crossbeam, comprising a crossbeam upper portion and a crossbeam lower portion, wherein the crossbeam upper portion is fixedly connected to the crossbeam lower portion;

[0009] A moving assembly, comprising two moving trolleys of the same structure, the two moving trolleys being respectively arranged at two ends of the crossbeam and respectively slidably connected to the upper portion of the crossbeam to move on the crossbeam;

[0010] A support assembly, comprising two support columns with the same structure, the two support columns are symmetrically arranged at both ends of the beam and are respectively connected to the lower part of the beam to support the beam;

[0011] The anchoring mechanism comprises two anchoring assemblies with the same structure, each anchoring assembly is symmetrically arranged in the middle position of the two supporting columns and is respectively connected to the lower part of the beam; wherein each anchoring assembly comprises an anchoring rod and an anchoring seat, one end of the anchoring rod is connected to the lower part of the beam, and the other end is connected to the anchoring seat through an anchoring pin shaft to support the beam.

[0012] Furthermore, the mobile trolley includes a bracket, a slide assembly, a transverse movement mechanism and a longitudinal movement mechanism;

[0013] Among them, the bracket is arranged on the upper part of the beam and is relatively slidably connected to the upper part of the beam along the extension direction of the beam; the slide assembly is fixedly connected to the bracket, and the transverse movement mechanism is connected to the upper part of the beam and the bracket to drive the bracket to move along the extension direction of the beam; the longitudinal movement mechanism is connected to the bracket, and the longitudinal movement mechanism is connected to the slide assembly to realize the longitudinal movement of the mobile trolley.

[0014] Furthermore, the transverse movement mechanism includes a transverse movement support, a transverse movement cylinder and a transverse movement pin;

[0015] Among them, the transverse movement support is fixedly connected to the upper part of the cross beam, one end of the transverse movement cylinder is connected to the transverse movement support, and the other end is connected to the bracket; the end of the bracket connected to the transverse movement cylinder is provided with a transverse movement pin hole that cooperates with the transverse movement pin shaft, and the transverse movement mechanism is used to realize the transverse movement of the mobile trolley under the driving action of the transverse movement cylinder.

[0016] Furthermore, the longitudinal movement mechanism includes a longitudinal movement slideway, a longitudinal movement support, a longitudinal movement push lug plate and a longitudinal movement oil cylinder;

[0017] Among them, the longitudinal movement slide is fixed on the slide assembly, the longitudinal movement support is slidably connected to the longitudinal movement slide, one end of the longitudinal movement cylinder is connected to the longitudinal movement support, and the other end is connected to the longitudinal movement push ear plate, the longitudinal movement push ear plate is fixedly connected to the bracket, and the longitudinal movement mechanism is used to realize the longitudinal movement of the mobile trolley under the driving action of the longitudinal movement cylinder.

[0018] Furthermore, the mobile trolley also includes a supporting mechanism, which includes a supporting cylinder and a supporting seat. One end of the supporting cylinder is connected to the supporting seat, and the other end is connected to the bracket. The supporting mechanism is used to adjust the supporting amplitude of the mobile trolley under the pushing and pulling action of the supporting cylinder.

[0019] Furthermore, it also includes:

[0020] The supporting assembly includes two oblique supporting rods, one flat supporting rod and three support rod pins. One end of the two oblique supporting rods is connected by a support rod pin and fixed at the lower center position of the crossbeam. The other ends of the two oblique supporting rods are respectively connected to one of the support rod pins. Both ends of the flat supporting rod are respectively connected to the support rod pins. The two support rod pins are respectively fixedly connected to the lower ends of the supporting columns.

[0021] Furthermore, a longitudinal movement pin is provided on the longitudinal movement support for fixedly connecting the longitudinal movement cylinder to the longitudinal movement support.

[0022] Furthermore, the cross beam is a box-type steel box beam.

[0023] Furthermore, the supporting columns are box-type columns.

[0024] Furthermore, an anchoring structure is provided at the lower end of the supporting column.

[0025] Compared with the prior art, the beneficial effect of the utility model is that the crossbeam of the utility model includes an upper crossbeam portion and a lower crossbeam portion. The upper crossbeam portion is provided for the lateral movement of the mobile trolley, and can also adapt to the connection between the lower crossbeam portion and the supporting column, so as to transfer the load to the bridge pier and ensure the stability of the upward mobile formwork. By providing two symmetrically installed mobile trolley structures, the mobile formwork can be stably supported by moving on the crossbeam, and automatic through-hole installation can be achieved, thereby improving construction efficiency. By providing a support assembly, the supporting capacity of the leg structure can be improved, and the stability of the upward mobile formwork can be ensured. By providing an anchoring mechanism and anchoring the leg structure to the building body, the stability of the upward mobile formwork can be further ensured.

[0026] Furthermore, the mobile trolley of the utility model can be fixed on the crossbeam by setting a bracket, thereby improving the stability of the movement of the mobile trolley, thereby ensuring the stability of the upward mobile mold frame. By setting a slide assembly, each part of the structure can be stably fixed on the bracket. By setting a transverse movement mechanism, the lateral movement of the mobile trolley can be achieved, and by setting a longitudinal movement mechanism, the longitudinal movement of the mobile trolley can be achieved. The support position can be adjusted to ensure the stability of the upward mobile mold frame.

[0027] Furthermore, the mobile trolley of the utility model is provided with a supporting mechanism, which can adjust the supporting amplitude of the mobile trolley in the vertical direction to ensure the stability of the upward mobile mold frame.

[0028] Furthermore, the utility model can assist the crossbeam support by arranging the support assembly, thereby improving the support capacity of the support column and ensuring the stability of the upward movable formwork.

[0029] Furthermore, the cross beam of the utility model is a box-type steel box beam, which can meet the needs of curved box beam construction and ensure the stability of the upward movable formwork.

[0030] Furthermore, the supporting columns of the utility model are box-shaped columns, which are supported on the front pier of the construction span, and the main beam is supported at the working elevation, thereby ensuring the stability of the upward movable formwork.

[0031] Furthermore, the utility model is provided with an anchoring structure at the lower end of the supporting column, which can realize the anchoring of the leg structure with the pier top during the casting state, and can prevent the leg from moving in the horizontal direction, thereby ensuring the stability of the upward movable formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is the overall structural diagram of the upward movable formwork support leg structure of the utility model;

[0033] Figure 2 It is a side view structural diagram of the upward movable formwork support leg structure of the utility model;

[0034] Figure 3 This is a front view structural diagram of the mobile trolley of the utility model;

[0035] Figure 4 This is a side structural diagram of the mobile trolley of the utility model;

[0036] In the figure: 1. Mobile trolley; 2. Crossbeam; 3. Connecting seat; 4. Support column; 5. Oblique supporting rod; 6. Flat supporting rod; 7. Anchoring structure; 8. Anchoring rod; 9. Anchoring seat; 10. Support rod pin; 11. Transverse bearing; 12. Transverse cylinder; 13. Transverse pin; 14. Bracket; 15. Slide assembly; 16. Longitudinal slideway; 17. Longitudinal cylinder; 18. Longitudinal bearing; 19. Longitudinal push ear plate; 20. Support seat; 21. Support cylinder; 22. Longitudinal latch. DETAILED DESCRIPTION

[0037] In order to make the purpose and advantages of the utility model more clearly understood, the utility model is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0038] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0039] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0040] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0041] See also Figure 1 and Figure 2 As shown, Figure 1 This is the overall structural diagram of the upward movable formwork support leg structure of the utility model; Figure 2 It is a side view structural diagram of the upward movable formwork support leg structure of the utility model; in the figure: a movable trolley 1, a cross beam 2, a connecting seat 3, a supporting column 4, an inclined supporting rod 5, a flat supporting rod 6, an anchoring structure 7, an anchoring rod 8, an anchoring seat 9, a support rod pin 10, a transverse support 11, a transverse cylinder 12, a transverse pin 13, a bracket 14, a slide assembly 15, a longitudinal slide 16, a longitudinal cylinder 17, a longitudinal support 18, a longitudinal push ear plate 19, a supporting seat 20, a supporting cylinder 21, and a longitudinal latch 22.

[0042] During implementation, the upward movable formwork support leg structure of the utility model is supported on the pier top at the front end of the main beam during in-situ casting, and is the main load-bearing fulcrum of the entire movable formwork; when passing through a hole, the main beam can be longitudinally moved on the upward movable formwork support leg structure of the utility model, and after the concrete beam is cast, tensioned and cured, the movable formwork falls and is demoulded, and the upward movable formwork support leg structure of the utility model is converted to a through-hole mode (the supporting cylinder is emptied, and the main beam slide plate is in contact with the longitudinal movement slideway), and the longitudinal movement mechanism is started to move the entire machine longitudinally forward to pass through the hole to the next construction position, and then it is horizontally closed to form a construction platform again to complete the construction of the next hole.

[0043] The utility model provides an upward movable mold frame leg structure, comprising:

[0044] A crossbeam 2, comprising a crossbeam upper portion and a crossbeam lower portion, wherein the crossbeam upper portion is fixedly connected to the crossbeam lower portion;

[0045] Specifically, the cross beam 2 is a box-type steel box beam.

[0046] The cross beam 2 of the utility model is a box-shaped steel box beam, which can meet the needs of curved box beam construction and ensure the stability of the upward movable formwork.

[0047] A moving assembly, comprising two moving trolleys 1 of the same structure, the two moving trolleys 1 are respectively arranged at both ends of the crossbeam 2 and are respectively slidably connected to the upper part of the crossbeam to move on the crossbeam 2;

[0048] A support assembly, comprising two support columns 4 of the same structure, the two support columns 4 are symmetrically arranged at both ends of the crossbeam 2 and are respectively connected to the lower part of the crossbeam to support the crossbeam 2;

[0049] In practice, the support column 4 is fixedly connected to the lower portion of the cross beam via the connecting seat 3, which can prevent the support column from shifting and affecting the stability of the movable mold frame.

[0050] Specifically, the supporting column 4 is a box-type column.

[0051] The supporting column 4 of the utility model is a box-shaped column, which is supported on the front pier of the construction span and supports the main beam at the working elevation. It has the characteristics of large bidirectional bending rigidity and light deadweight, and ensures the stability of the upward movable formwork.

[0052] Specifically, an anchoring structure 7 is provided at the lower end of the supporting column 4 .

[0053] It is understandable that the outrigger structure needs to be anchored to the pier during installation, for example, it can be anchored by fine-rolled threaded steel bars, and embedded parts must be left as required when the pier is cast. The embedded parts on the top of the pier are fine-rolled threaded steel bars, which are installed on the top of the pier as required when the pier is cast. In addition, the embedded parts on the top of the pier can also be installed to fix the outrigger columns to resist the bending moment caused by the horizontal force on the outrigger structure when the formwork passes through the hole, ensuring the stability of the outrigger structure.

[0054] The utility model is provided with an anchoring structure 7 at the lower end of the supporting column 4, which can realize the anchoring of the leg structure with the pier top during the pouring state, prevent the leg from moving in the horizontal direction, and ensure the stability of the upward movable formwork.

[0055] The anchoring mechanism includes two anchoring assemblies with the same structure, each of which is symmetrically arranged in the middle position of the two supporting columns 4 and is respectively connected to the lower part of the beam; wherein each of the anchoring assemblies includes an anchoring rod 8 and an anchoring seat 9, one end of the anchoring rod 8 is connected to the lower part of the beam, and the other end is connected to the anchoring seat 9 through an anchoring pin shaft, so as to support the beam 2.

[0056] The crossbeam 2 of the utility model includes an upper crossbeam portion and a lower crossbeam portion. The upper crossbeam portion is provided for the lateral movement of the mobile trolley, and can also adapt to the connection between the lower crossbeam portion and the support column 4 to transfer the load to the bridge pier, thereby ensuring the stability of the upward mobile formwork. By providing two symmetrically installed mobile trolley 1 structures, the mobile formwork can be stably supported by moving on the crossbeam 2, and automatic through-hole installation can be achieved, thereby improving construction efficiency. By providing a support assembly, the supporting capacity of the leg structure can be improved, thereby ensuring the stability of the upward mobile formwork. By providing an anchoring mechanism and anchoring the leg structure to the building body, the stability of the upward mobile formwork can be further ensured.

[0057] See also Figure 3 and Figure 4 As shown, Figure 3 This is a front view structural diagram of the mobile trolley 1 of the utility model; Figure 4 It is a side view of the structure of the mobile trolley 1 of the utility model; specifically, the mobile trolley 1 includes a bracket 14, a slide assembly 15, a transverse movement mechanism and a longitudinal movement mechanism;

[0058] Among them, the bracket 14 is arranged on the upper part of the beam and is relatively slidably connected to the upper part of the beam along the extension direction of the beam 2; the slide assembly 15 is fixedly connected to the bracket 14, and the transverse movement mechanism is connected to the upper part of the beam and the bracket 14 to drive the bracket 14 to move along the extension direction of the beam 2; the longitudinal movement mechanism is connected to the bracket 14, and the longitudinal movement mechanism is connected to the slide assembly 15 to realize the longitudinal movement of the mobile trolley 1.

[0059] Specifically, the transverse movement mechanism includes a transverse movement support 11, a transverse movement cylinder 12 and a transverse movement pin 13;

[0060] Among them, the transverse movement support 11 is fixedly connected to the upper part of the cross beam, one end of the transverse movement cylinder 12 is connected to the transverse movement support 11, and the other end is connected to the bracket 14; the end of the bracket 14 connected to the transverse movement cylinder 12 is provided with a transverse movement pin hole that cooperates with the transverse movement pin shaft 13, and the transverse movement mechanism is used to realize the transverse movement of the mobile trolley 1 under the driving action of the transverse movement cylinder 12.

[0061] It can be understood that the two moving trolleys move laterally on the cross beam under the push-pull driving action of the transverse cylinder to achieve the closing and separation of the main beam structure.

[0062] Specifically, the longitudinal movement mechanism includes a longitudinal movement slideway 16, a longitudinal movement support 18, a longitudinal movement push ear plate 19 and a longitudinal movement cylinder 17;

[0063] Among them, the longitudinal movement slide 16 is fixed on the slide assembly 15, the longitudinal movement support 18 is slidably connected to the longitudinal movement slide 16, one end of the longitudinal movement cylinder 17 is connected to the longitudinal movement support 18, and the other end is connected to the longitudinal movement push ear plate 19, and the longitudinal movement push ear plate 19 is fixedly connected to the bracket 14. The longitudinal movement mechanism is used to realize the longitudinal movement of the mobile trolley 1 under the driving action of the longitudinal movement cylinder 17.

[0064] Specifically, a longitudinal movement pin 22 is provided on the longitudinal movement support 18 for fixedly connecting the longitudinal movement cylinder 17 to the longitudinal movement support 18 .

[0065] It can be understood that the longitudinal slideway is opposite to the web of the main beam, and the longitudinal support is provided with anti-friction material to reduce the friction resistance when the longitudinal movement passes through the hole. The cylinder end of the longitudinal cylinder is fixed on the longitudinal support, and the rod end is connected to the longitudinal push ear plate by the longitudinal pin. The longitudinal cylinder can push the mobile mold frame forward 0.5m to 1.2m each time.

[0066] In practice, the longitudinal movement mechanism can be set as a fork mechanism. According to the principle of the mechanical lever mechanism, the longitudinal movement cylinder pushes the movable formwork steel box beam forward or backward by the different positions of the pin shaft inside. Changing the direction once only requires changing the direction of the pin shaft once, and there is no need to manually change the pin shaft every time the longitudinal movement cylinder pushes or pulls, thereby saving labor.

[0067] The mobile trolley 1 of the utility model can be fixed on the crossbeam 2 by providing a bracket 14, thereby improving the stability of the movement of the mobile trolley 1, thereby ensuring the stability of the upward mobile mold frame. By providing a slide assembly 15, each part of the structure can be stably fixed on the bracket 14. By providing a transverse movement mechanism, the lateral movement of the mobile trolley 1 can be achieved, and by providing a longitudinal movement mechanism, the longitudinal movement of the mobile trolley 1 can be achieved. The support position can be adjusted to ensure the stability of the upward mobile mold frame.

[0068] Specifically, the mobile trolley also includes a supporting mechanism, which includes a supporting cylinder 21 and a supporting seat 20. One end of the supporting cylinder 21 is connected to the supporting seat 20, and the other end is connected to the bracket 14. The supporting mechanism is used to adjust the supporting range of the mobile trolley 1 under the pushing and pulling action of the supporting cylinder 21.

[0069] The mobile trolley 1 of the utility model is provided with a supporting mechanism, which can adjust the supporting amplitude of the mobile trolley 1 in the vertical direction to ensure the stability of the upward mobile mold frame.

[0070] Please continue reading Figure 1 Specifically, it also includes:

[0071] The supporting assembly includes two oblique supporting rods 5, one flat supporting rod 6 and three support rod pins 10. One end of the two oblique supporting rods 5 is connected by a support rod pin 10 and fixed at the lower center position of the crossbeam. The other ends of the two oblique supporting rods 5 are respectively connected to one of the support rod pins 10. Both ends of the flat supporting rod 6 are respectively connected to the support rod pins 10. The two support rod pins 10 are respectively fixedly connected to the lower ends of the supporting columns 4.

[0072] It can be understood that the two oblique support rods 5 and the one flat support rod 6 are assembled into a triangle shape, and each pair is fixedly connected by a support rod pin 10, that is, the top corner where the two oblique support rods 5 are connected is fixedly connected to the lower center position of the crossbeam by the support rod pin 10, and the two bottom corners where the oblique support rod 5 and the flat support rod 6 are connected are fixedly connected to the lower end of the supporting column 4 by the support rod pin 10 respectively.

[0073] The utility model can assist the crossbeam 2 in supporting by arranging the supporting assembly, improve the supporting capacity of the supporting column 4, and ensure the stability of the upward movable mold frame.

[0074] So far, the technical solution of the utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

Claims

1. An upward movable formwork leg structure, characterized in that: include: A crossbeam, comprising a crossbeam upper portion and a crossbeam lower portion, wherein the crossbeam upper portion is fixedly connected to the crossbeam lower portion; A moving assembly, comprising two moving trolleys of the same structure, the two moving trolleys are respectively arranged at two ends of the crossbeam and are respectively slidably connected to the upper part of the crossbeam to move on the crossbeam; A support assembly, comprising two support columns with the same structure, the two support columns are symmetrically arranged at both ends of the beam and are respectively connected to the lower part of the beam to support the beam; The anchoring mechanism comprises two anchoring assemblies with the same structure, each anchoring assembly is symmetrically arranged in the middle position of the two supporting columns and is respectively connected to the lower part of the beam; wherein each anchoring assembly comprises an anchoring rod and an anchoring seat, one end of the anchoring rod is connected to the lower part of the beam, and the other end is connected to the anchoring seat through an anchoring pin shaft to support the beam.

2. The upward movable formwork support leg structure according to claim 1, characterized in that: The mobile trolley includes a bracket, a slide assembly, a transverse movement mechanism and a longitudinal movement mechanism; Among them, the bracket is arranged on the upper part of the beam and is relatively slidably connected to the upper part of the beam along the extension direction of the beam; the slide assembly is fixedly connected to the bracket, and the transverse movement mechanism is connected to the upper part of the beam and the bracket to drive the bracket to move along the extension direction of the beam; the longitudinal movement mechanism is connected to the bracket, and the longitudinal movement mechanism is connected to the slide assembly to realize the longitudinal movement of the mobile trolley.

3. The upward movable formwork support leg structure according to claim 2 is characterized in that: The transverse movement mechanism comprises a transverse movement support, a transverse movement cylinder and a transverse movement pin; Among them, the transverse movement support is fixedly connected to the upper part of the cross beam, one end of the transverse movement cylinder is connected to the transverse movement support, and the other end is connected to the bracket; the end of the bracket connected to the transverse movement cylinder is provided with a transverse movement pin hole that cooperates with the transverse movement pin shaft, and the transverse movement mechanism is used to realize the transverse movement of the mobile trolley under the driving action of the transverse movement cylinder.

4. The upward movable formwork support leg structure according to claim 3 is characterized in that: The longitudinal movement mechanism comprises a longitudinal movement slideway, a longitudinal movement support, a longitudinal movement push ear plate and a longitudinal movement oil cylinder; Among them, the longitudinal movement slide is fixed on the slide assembly, the longitudinal movement support is slidably connected to the longitudinal movement slide, one end of the longitudinal movement cylinder is connected to the longitudinal movement support, and the other end is connected to the longitudinal movement push ear plate, the longitudinal movement push ear plate is fixedly connected to the bracket, and the longitudinal movement mechanism is used to realize the longitudinal movement of the mobile trolley under the driving action of the longitudinal movement cylinder.

5. The upward movable formwork support leg structure according to claim 4, characterized in that: The mobile trolley also includes a supporting mechanism, which includes a supporting oil cylinder and a supporting seat. One end of the supporting oil cylinder is connected to the supporting seat, and the other end is connected to the bracket. The supporting mechanism is used to adjust the supporting amplitude of the mobile trolley under the push and pull action of the supporting oil cylinder.

6. The upward movable formwork support leg structure according to claim 5, characterized in that: Also includes: The supporting assembly includes two oblique supporting rods, one flat supporting rod and three support rod pins. One end of the two oblique supporting rods is connected by a support rod pin and fixed at the lower center position of the crossbeam. The other ends of the two oblique supporting rods are respectively connected to one of the support rod pins. Both ends of the flat supporting rod are respectively connected to the support rod pins. The two support rod pins are respectively fixedly connected to the lower ends of the supporting columns.

7. The upward movable formwork support leg structure according to claim 6, characterized in that: The longitudinal movement support is provided with a longitudinal movement pin for fixedly connecting the longitudinal movement cylinder with the longitudinal movement support.

8. The upward movable formwork support leg structure according to claim 7, characterized in that: The cross beam is a box-shaped steel box beam.

9. The upward movable formwork support leg structure according to claim 8, characterized in that: The supporting columns are box-type columns.

10. The upward movable formwork support leg structure according to claim 9, characterized in that: An anchoring structure is provided at the lower end of the supporting column.

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