Movable formwork support system suitable for various culverts with rectangular sections

Abstract

The invention relates to the related technical field of culvert construction, in particular to a movable formwork support system suitable for various rectangular-section culverts, which comprises a walking base and further comprises a main top plate movably arranged above the walking base and two auxiliary top plates slidably embedded at the two ends of the main top plate respectively, and the auxiliary top plates are connected with lateral supporting mechanisms; the two lifting structures are arranged on the walking base, each lifting structure comprises a first vertical arm fixed to the walking base and a second vertical arm which is in sliding sleeving fit with the first vertical arm and fixedly connected with the main top plate, and a first hydraulic cylinder is rotationally installed on the walking base; the culvert formwork supporting device can be suitable for formwork supporting and matched movement of various rectangular-section culverts, in the actual application process, workers do not need to design and build a support according to the size of the culvert, the construction process is simplified, complex dismantling work is omitted, and the workload and construction difficulty of culvert building are effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of culvert construction, in particular to a movable formwork support system suitable for various rectangular cross-section culverts. BACKGROUND

[0002] A culvert is an important water conservancy project, mainly used for guiding water flow, protecting roadbeds, and improving ecological environment. It can effectively prevent water flow from eroding and eroding the roadbed, ensuring the stability and safety of the road. Common culvert cross-section types include circular, arched, rectangular, and other forms. Among them, the rectangular culvert has obvious advantages. It has a simple structure, convenient construction, and can better adapt to different terrain and geological conditions. The culvert with a rectangular cross-section is easier to control the size accurately during construction, and the internal space utilization rate is high, which is convenient for later maintenance and repair.

[0003] The basic process of culvert construction includes several key steps. First, according to the design requirements, the formwork is erected, which is an important tool for forming the culvert structure. Then, the support is set up inside the culvert to support the formwork, and the formwork support is mainly used to ensure the stability of the formwork. During the concrete pouring process, the formwork will be subjected to a large pressure, and if there is no stable support, the formwork may be deformed. Once the formwork is deformed, the formed culvert will not meet the design requirements, and even may have structural safety hazards. Therefore, the role of the formwork support is to ensure that the formwork remains stable during pouring, so that the culvert can be formed according to the design requirements.

[0004] However, in actual construction, workers usually need to set up supports according to the specific construction situation to support the culvert formwork. The erection and disassembly of the support are not only complex, but also time-consuming and laborious, which greatly affects the construction efficiency. In addition, different construction requirements result in different specifications of rectangular culverts. In order to meet these different specification requirements, construction personnel also need to continuously adjust the support structure. This means that before construction, the support structure must be designed in detail according to the specific situation, which undoubtedly increases the workload and construction difficulty of the culvert construction. SUMMARY

[0005] The purpose of the present application is to provide a movable formwork support system suitable for various rectangular cross-section culverts to solve the problems raised in the background.

[0006] To achieve the above purpose, the present application provides the following technical solutions: The movable formwork support system suitable for various rectangular cross-section culverts comprises a walking base, and further comprises: A main top plate movably arranged above the walking base, and two auxiliary top plates respectively slidably embedded at both ends of the main top plate, the auxiliary top plates being connected with lateral support mechanisms; Two groups of lifting structures are arranged on the walking base, the lifting structure comprises a first vertical arm fixed on the walking base and a second vertical arm slidingly sleeved with the first vertical arm and fixedly connected with the main top plate, a first hydraulic cylinder is rotatably arranged on the walking base, and the movable end of the first hydraulic cylinder is hinged with the second vertical arm, so as to drive the second vertical arm to drive the main top plate to lift, and a group of horizontal driving mechanisms for driving the lateral support mechanism to horizontally move are arranged on the two first vertical arms respectively; A plurality of stable support mechanisms are arranged between the main top plate and the lateral support mechanism, and a pressure applying mechanism is arranged below the auxiliary top plate, when the lateral support mechanism horizontally moves, the stable support mechanism and the pressure applying mechanism are triggered, and when the lateral support mechanism moves away from the main top plate, the pressure applying mechanism can increase the pressure on the auxiliary top plate.

[0007] As a further scheme of the present application: the lateral support mechanism comprises a first side plate fixed with the auxiliary top plate and a second side plate slidingly embedded with the first side plate, the second side plate is connected with the horizontal driving mechanism, the horizontal driving mechanism can drive the second side plate and the first side plate to move away from or close to the walking base synchronously, and make the first side plate drive the auxiliary top plate to slide relative to the main top plate.

[0008] As a further scheme of the present application: the upper surfaces of the main top plate and the auxiliary top plate are flush, the side of the first side plate and the second side plate away from the walking base is flush, and a plurality of strip-shaped protrusions are formed on the main top plate and the second side plate along the width direction of the main top plate and the second side plate respectively, a plurality of strip-shaped grooves are arranged on the auxiliary top plate and the first side plate along the width direction of the auxiliary top plate and the first side plate respectively.

[0009] As a further scheme of the present application: the side of the two first vertical arms is fixed with a guide rail, the horizontal driving mechanism comprises a horizontal arm slidingly embedded in the guide rail and a connecting arm fixedly connected with the horizontal arm, and the connecting arm is fixed with the second side plate; Wherein, a second hydraulic cylinder is rotatably arranged on the side of the first vertical arm facing the second side plate, a fixed block is fixedly arranged on the side of the horizontal arm, and the movable end of the second hydraulic cylinder is hinged with the fixed block.

[0010] As a further scheme of the present application: the stable support mechanism comprises a first support arm fixed on the bottom of the main top plate and a second support arm slidingly sleeved with the first support arm, the first support arm and the second support arm are inclined to form an inclined support arm group, and the second support arm is further connected with a sliding guide structure arranged on the side of the first side plate facing the walking base.

[0011] As a further scheme of the present application, a plurality of fixing holes are equidistantly arranged on the first support arm and the second support arm along the respective length directions, and the two arms can be fixed through the fixing holes and fastening bolts matched with the fixing holes. The sliding guide structure comprises a sliding rail fixed to the first side plate towards the walking base and a movable block slidingly fitted on the sliding rail, and the movable block is fixedly connected with the end of the second support arm away from the main top plate.

[0012] As a further scheme of the present application, the pressing mechanism comprises a telescopic arm fixed to the bottom of the auxiliary top plate and an assembly arm slidingly fitted with the telescopic arm, the side of the assembly arm is fixed with a support arm, and the second vertical arm is fixed with a guide arm, the support arm penetrates through the guide arm and the second vertical arm and is slidingly connected with the guide arm and the second vertical arm, and the inside of the assembly arm is hollow and provided with an elastic assembly connected with the telescopic arm.

[0013] As a further scheme of the present application, the elastic assembly comprises a vertical column fixed in the assembly arm, a cylindrical spring sleeved on the vertical column, and a sliding block slidingly arranged in the assembly arm, the vertical column penetrates through the sliding block and is slidingly connected with the sliding block and the telescopic arm, and two sets of sliding cooperation structures are arranged between the sliding block and the second vertical arm.

[0014] As a further scheme of the present application, the sliding cooperation structure comprises a limiting plate fixed with the second vertical arm through a connecting block, the side of the sliding block is fixed with a follower arm, the end of the follower arm away from the sliding block is fixed with a convex column, the limiting plate is provided with an inclined slot matched with the convex column, the convex column extends into the inclined slot and is slidingly connected with the limiting plate, when the assembly arm moves away from the second vertical arm, the convex column slides along the inclined slot and drives the follower arm to drive the sliding block to rise in the assembly arm.

[0015] Compared with the prior art, the present application has the following advantages: By adjusting the height of the main top plate and the horizontal position of the second side plate, and during the adjustment process, the auxiliary top plate and the first side plate are automatically and adaptively adjusted, the inverted "U"-shaped support structure formed by the main top plate, the two auxiliary top plates and the two sets of lateral support mechanisms can be effectively maintained, so that the present application can be applied to the formwork support of various rectangular cross-section culverts, and the moving is matched, in actual application, workers do not need to design and build supports according to the size of the culvert, which simplifies the construction process and saves the complex demolition work, effectively reducing the workload and construction difficulty of the culvert construction. Secondly, the first support arm and the second support arm are slidably sleeved, forming an inclined support arm group, and forming a triangular frame with the first side plate, the auxiliary top plate and the main top plate, and the length of the inclined support arm group can be adaptively adjusted according to the width of the culvert, so that the stability of the auxiliary top plate in supporting the culvert formwork can be effectively ensured, and the construction safety is ensured. In addition, by setting the telescopic arm, the cylindrical spring is used to provide upward supporting force for the auxiliary top plate, and in the case that the width of the culvert is larger, during the adjustment of the horizontal positions of the first side plate, the second side plate and the auxiliary top plate, that is, when the distance between the end of the auxiliary top plate towards the culvert side wall and the main top plate gradually increases, the convex column can be slidably matched with the limiting plate, so as to gradually move the sliding block upwards, and the compression amount of the cylindrical spring gradually increases, so that the stability of the auxiliary top plate in supporting the culvert formwork is ensured when the end of the auxiliary top plate is far away from the main top plate, and the uniformity of the supporting force on the middle part and both sides of the top of the culvert formwork is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Structure diagram of an embodiment of the movable formwork support system suitable for various rectangular cross-section culverts.

[0017] Figure 2 Structure diagram of an embodiment of the movable formwork support system suitable for various rectangular cross-section culverts from another angle.

[0018] Figure 3 Structure diagram of an embodiment of the movable formwork support system suitable for various rectangular cross-section culverts from still another angle.

[0019] Figure 4 Front view of an embodiment of the movable formwork support system suitable for various rectangular cross-section culverts.

[0020] Figure 5 Structure explosion diagram of the transverse driving mechanism in an embodiment of the movable formwork support system suitable for various rectangular cross-section culverts.

[0021] Figure 6 Structure diagram of an embodiment of the movable formwork support system suitable for various rectangular cross-section culverts. Figure 5 Structure diagram from another angle.

[0022] Figure 7 Structure explosion diagram of the stable support mechanism in an embodiment of the movable formwork support system suitable for various rectangular cross-section culverts.

[0023] Figure 8 Structure diagram of an embodiment of the movable formwork support system suitable for various rectangular cross-section culverts. Figure 7 Structure diagram from another angle.

[0024] Figure 9The structure diagram of the pressure applying mechanism in one embodiment of the movable formwork support system suitable for various rectangular cross-section culverts.

[0025] Figure 10 The exploded view of the pressure applying mechanism in one embodiment of the movable formwork support system suitable for various rectangular cross-section culverts.

[0026] In the figure: 1, walking base; 2, walking wheel; 3, main top plate; 4, first vertical arm; 5, second vertical arm; 501, guide arm; 502, connecting block; 6, first hydraulic cylinder; 7, second hydraulic cylinder; 8, auxiliary top plate; 9, first side plate; 901, sliding rail; 10, second side plate; 11, guide rail; 12, cross arm; 1201, fixed block; 13, connecting arm; 14, first support arm; 15, second support arm; 16, movable block; 17, fastening bolt; 18, cylindrical spring; 19, assembly arm; 1901, support arm; 1902, vertical column; 20, telescopic arm; 21, sliding block; 2101, follow-up arm; 2102, convex column; 22, limiting plate; 2201, inclined groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] In addition, the elements in the present application are referred to as "fixed to" or "provided on" another element, which can be directly on another element or can have a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or can have a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0029] Please refer to Figures 1-10 In the embodiments of the present application, the movable formwork support system suitable for various rectangular cross-section culverts comprises a walking base 1, and further comprises: The main top plate 3 movably arranged above the walking base 1 and the two auxiliary top plates 8 respectively slidably embedded at both ends of the main top plate 3, and the auxiliary top plates 8 are connected with the lateral support mechanism; Two groups of lifting structures are arranged on the walking base 1, and the lifting structure comprises a first vertical arm 4 fixed on the walking base 1 and a second vertical arm 5 slidably sleeved with the first vertical arm 4 and fixedly connected with the main top plate 3, a first hydraulic cylinder 6 is rotatably arranged on the walking base 1, and the movable end of the first hydraulic cylinder 6 is hingedly connected with the second vertical arm 5, so as to drive the second vertical arm 5 to drive the main top plate 3 to lift, and a group of horizontal driving mechanisms for driving the lateral support mechanism to horizontally move are arranged on the two first vertical arms 4 respectively. It should be pointed out that a strip-shaped through groove is arranged on the side of the first vertical arm 4, and the strip-shaped through groove is used for connecting the first hydraulic cylinder 6 with the second vertical arm 5 and smoothly moving the second vertical arm 5.

[0030] A plurality of stable support mechanisms arranged between the main top plate 3 and the lateral support mechanism and a pressing mechanism arranged below the auxiliary top plate 8 are provided, when the lateral support mechanism horizontally moves, the stable support mechanism and the pressing mechanism are triggered, and when the lateral support mechanism moves away from the main top plate 3, the pressing mechanism can increase the pressure on the auxiliary top plate 8.

[0031] It should be pointed out that in actual construction, a movable track can be arranged in the to-be-repaired culvert, and a walking wheel 2 adapted to the movable track is arranged on the bottom of the walking base 1, so that the template support can move through the walking wheel 2 and the movable track, thereby facilitating the adjustment of the support position according to the construction progress of the culvert.

[0032] Please refer to Figure 4 , Figure 5 and Figure 7 again, the lateral support mechanism comprises a first side plate 9 fixed with the auxiliary top plate 8 and a second side plate 10 slidably embedded with the first side plate 9, the second side plate 10 is connected with the horizontal driving mechanism, the horizontal driving mechanism can drive the second side plate 10 and the first side plate 9 to move away from or close to the walking base 1 synchronously, and make the first side plate 9 drive the auxiliary top plate 8 to slide relative to the main top plate 3. The upper surfaces of the main top plate 3 and the auxiliary top plate 8 are flush, the side of the first side plate 9 and the second side plate 10 away from the walking base 1 is flush, and a plurality of strip-shaped protrusions are formed on the main top plate 3 and the second side plate 10 along the width direction of the main top plate 3 and the second side plate 10 respectively, and a plurality of strip-shaped grooves are arranged on the auxiliary top plate 8 and the first side plate 9 along the width direction of the auxiliary top plate 8 and the first side plate 9 respectively.

[0033] Further, the upper surface of the main top plate 3 is flush with the upper surface of the auxiliary top plate 8, which is arranged to avoid the height difference between the upper surface of the main top plate 3 and the auxiliary top plate 8 when supporting the culvert formwork, so that the main top plate 3 or the auxiliary top plate 8 cannot effectively contact the formwork, resulting in ineffective support, and the first side plate 9 and the second side plate 10 are flush with the side of the walking base 1, which is arranged to avoid the problem that the first side plate 9 or the second side plate 10 cannot contact the lateral formwork when supporting the lateral part of the culvert formwork. The arrangement of the strip-shaped protrusions and the strip-shaped grooves can effectively ensure the effective support area of each plate on the culvert formwork when the size of the culvert is large, that is, the auxiliary top plate 8 extends to both sides of the walking base 1 for a long time, and the first side plate 9 rises relative to the second side plate 10 for a large displacement, thereby ensuring the support effect.

[0034] During construction, the positions of the auxiliary top plate 8, the first side plate 9 and the second side plate 10 are adjusted according to the size of the culvert, specifically, the first hydraulic cylinder 6 works, and the movable end of the first hydraulic cylinder 6 is elongated, which can drive the second vertical arm 5 to slide upward in the first vertical arm 4, then the second vertical arm 5 can jack up the main top plate 3 until the main top plate 3 contacts the upper formwork of the culvert formwork, during the process, the main top plate 3 drives the auxiliary top plate 8 to rise, and the first side plate 9 rises with the auxiliary top plate 8, and the first side plate 9 and the second side plate 10 slide relative to each other. When the transverse driving mechanism works, the second side plate 10 can move away from or close to the walking base 1, then correspondingly, the second side plate 10 drives the first side plate 9 to move together, and the auxiliary top plate 8 and the main top plate 3 slide relative to each other. Therefore, by adjusting the height of the main top plate 3 and the horizontal position of the second side plate 10, and during the adjustment process, the auxiliary top plate 8 and the first side plate 9 are automatically adjusted adaptively, the inverted "U"-shaped support structure formed by the main top plate 3, the two auxiliary top plates 8 and the two groups of lateral support mechanisms can be effectively maintained, so that the present application can be applied to the formwork support of various rectangular cross-section culverts, and in actual application, workers do not need to design and build supports according to the size of the culvert, which simplifies the construction process and saves the complex demolition work, effectively reducing the workload and construction difficulty of the culvert construction.

[0035] Please refer to Figure 4 and Figure 5, two sides of the first vertical arm 4 are fixed with guide rails 11, the transverse driving mechanism comprises a cross arm 12 slidingly fitted in the guide rails 11 and a connecting arm 13 fixedly connected with the cross arm 12, and the connecting arm 13 is fixed with the second side plate 10; wherein a second hydraulic cylinder 7 is rotatably installed on one side of the first vertical arm 4 facing the second side plate 10, and a fixed block 1201 is fixedly arranged on one side of the cross arm 12, and the movable end of the second hydraulic cylinder 7 is hingedly connected with the fixed block 1201.

[0036] In detail, when the movable end of the second hydraulic cylinder 7 is elongated, the cross arm 12 can be driven to slide on the guide rails 11 in a direction away from the walking base 1 through the fixed block 1201, correspondingly, the second side plate 10 is driven to move away from the walking base 1 through the connecting arm 13, at the same time, the second side plate 10 drives the first side plate 9 to move, and the first side plate 9 drives the auxiliary top plate 8 to slide relative to the main top plate 3, thereby realizing the adjustment function of the lateral supporting mechanism, so that it can adapt to the width of the culvert.

[0037] Please refer again to Figure 8 , the stable supporting mechanism comprises a first supporting arm 14 fixed to the bottom of the main top plate 3 and a second supporting arm 15 slidingly fitted with the first supporting arm 14, the first supporting arm 14 and the second supporting arm 15 are inclined to form an inclined supporting arm group, and the second supporting arm 15 is further connected with a sliding guide structure arranged on one side of the first side plate 9 facing the walking base 1. A plurality of fixing holes are equidistantly arranged along the length of the first supporting arm 14 and the second supporting arm 15 respectively, and the first supporting arm 14 and the second supporting arm 15 can be fixed through the fixing holes and fastening bolts 17 matched with the fixing holes; the sliding guide structure comprises a sliding rail 901 fixed to one side of the first side plate 9 facing the walking base 1 and a movable block 16 slidingly fitted in the sliding rail 901, and the movable block 16 is fixedly connected with one end of the second supporting arm 15 away from the main top plate 3.

[0038] Specifically, when the first hydraulic cylinder 6 drives the second vertical arm 5 to drive the main top plate 3 to rise and adjust the height of the main top plate 3 and the auxiliary top plate 8, the main top plate 3, the auxiliary top plate 8 and the first side plate 9 remain relatively stationary, the movable block 16 does not slide in the guide rail 11, and the first supporting arm 14 and the second supporting arm 15 do not slide relative to each other; When the second hydraulic cylinder 7 works, the horizontal positions of the first side plate 9 and the second side plate 10 are adjusted to adapt to the width of the culvert template, and before the fastening bolt 17 is removed, the fixed connection state between the first support arm 14 and the second support arm 15 is released, and then when the width of the culvert is large, the first support arm 14, the second support arm 15, the first side plate 9, the auxiliary top plate 8 and the main top plate 3 form a triangular structure during the movement of the first side plate 9 and the second side plate 10 away from the walking base 1, and the triangular structure increases accordingly as the auxiliary top plate 8 and the first side plate 9 move towards the lateral template of the culvert, specifically, the sliding block 16 slides downward on the sliding rail 901, the first support arm 14 and the second support arm 15 slide relatively, the length of the inclined support arm group formed by the first support arm 14 and the second support arm 15 increases, and after the adjustment is completed, the workers fix the first support arm 14 and the second support arm 15 by using the fastening bolt 17 and the fixing hole; Therefore, the first support arm 14 and the second support arm 15 are arranged in a sliding sleeve manner to form an inclined support arm group, and the inclined support arm group, the first side plate 9, the auxiliary top plate 8 and the main top plate 3 form a triangular structure, and the length of the inclined support arm group can be adjusted adaptively according to the width of the culvert, so that the stability of the auxiliary top plate 8 supporting the culvert template can be effectively ensured when the width of the culvert is large, and the construction safety can be ensured.

[0039] Please refer again to Figure 4 With Figure 9The pressing mechanism comprises a telescopic arm 20 fixed to the bottom of the secondary top plate 8 and an assembly arm 19 which is sleeved with the telescopic arm 20, the side of the assembly arm 19 is fixed with a supporting arm 1901, the second vertical arm 5 is fixed with a guide arm 501, the supporting arm 1901 penetrates through the guide arm 501 and the second vertical arm 5 and is in sliding connection with the guide arm 501 and the second vertical arm 5, the inside of the assembly arm 19 is hollow and is provided with an elastic assembly connected with the telescopic arm 20. The elastic assembly comprises a vertical column 1902 fixed in the assembly arm 19, a cylindrical spring 18 sleeved on the vertical column 1902 and a sliding block 21 slidingly arranged in the assembly arm 19, the vertical column 1902 penetrates through the sliding block 21 and is in sliding connection with the sliding block 21 and the telescopic arm 20, and two sets of sliding cooperation structures are arranged between the sliding block 21 and the second vertical arm 5. The sliding cooperation structure comprises a limiting plate 22 fixed to the second vertical arm 5 through a connecting block 502, the side of the sliding block 21 is fixed with a follower arm 2101, the end of the follower arm 2101 away from the sliding block 21 is fixed with a convex column 2102, the limiting plate 22 is provided with an inclined groove 2201 matched with the convex column 2102, the convex column 2102 extends into the inclined groove 2201 and is in sliding connection with the limiting plate 22, when the assembly arm 19 moves away from the second vertical arm 5, the convex column 2102 slides along the inclined groove 2201 and drives the follower arm 2101 to drive the sliding block 21 to ascend in the assembly arm 19.

[0040] Specifically, the side of the first vertical arm 4 towards the limiting plate 22 is further provided with a rectangular through groove for the movement of the connecting block 502; When the first hydraulic cylinder 6 drives the main top plate 3 to ascend and descend, the second vertical arm 5 drives the assembly arm 19 to move through the guide arm 501 and the supporting arm 1901, and the secondary top plate 8 drives the telescopic arm 20 to move, so that the assembly arm 19 and the telescopic arm 20 remain relatively static; When the second hydraulic cylinder 7 drives the second side plate 10 to move away from the walking base 1, the secondary top plate 8 drives the telescopic arm 20 and the assembly arm 19 to move away from the first vertical arm 4 and the second vertical arm 5, in this process, the convex column 2102 slides in the inclined groove 2201 and is in sliding cooperation with the limiting plate 22, so that the follower arm 2101 drives the sliding block 21 to ascend in the assembly arm 19, the compression amount of the cylindrical spring 18 increases, and thus the upward supporting force of the secondary top plate 8 increases; To this end, the present application sets up the telescopic arm 20, uses the cylindrical spring 18 to provide upward supporting force for the auxiliary roof 8, and in the case of large culvert width, during the adjustment of the horizontal positions of the first side plate 9, the second side plate 10 and the auxiliary roof 8, that is, the distance between the end of the auxiliary roof 8 towards the culvert side wall and the main roof 3 gradually increases, the convex column 2102 can be in sliding fit with the limiting plate 22, prompting the slider 21 to gradually move up, and the compression amount of the cylindrical spring 18 gradually increases, thereby ensuring the stability of the end of the auxiliary roof 8 in the case of far distance from the main roof 3, and the support of the auxiliary roof 8 to the culvert formwork, and ensuring the uniformity of the support force on the middle part and both sides of the top of the culvert formwork. It is emphasized that the elastic coefficient of the cylindrical spring 18 is large, thereby ensuring the effectiveness of the support.

[0041] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A movable formwork support system suitable for various rectangular cross-section culverts, including a traveling base; Its features are, Also includes: The main top plate is located above the walking base, and two secondary top plates are slidably fitted into both ends of the main top plate. The secondary top plates are connected to a lateral support mechanism. Two sets of lifting structures are provided on the walking base. The lifting structure includes a first vertical arm fixed on the walking base and a second vertical arm that slides and is fixedly connected to the main top plate. A first hydraulic cylinder is rotatably installed on the walking base, and the movable end of the first hydraulic cylinder is hinged to the second vertical arm to drive the second vertical arm to lift the main top plate. Each of the two first vertical arms is also provided with a set of transverse drive mechanisms for driving the lateral support mechanism to move horizontally. Multiple sets of stabilizing support mechanisms located between the main roof plate and the lateral support mechanism, as well as a pressure applying mechanism located below the secondary roof plate, trigger the stabilizing support mechanism and the pressure applying mechanism when the lateral support mechanism moves horizontally. When the lateral support mechanism moves away from the main roof plate, the pressure applying mechanism can increase the pressure on the secondary roof plate.

2. The movable formwork support system for culverts with various rectangular cross-sections according to claim 1, characterized in that, The lateral support mechanism includes a first side plate fixed to the sub-top plate and a second side plate slidably fitted with the first side plate. The second side plate is connected to the lateral drive mechanism, which can drive the second side plate and the first side plate to move synchronously away from or towards the walking base, and cause the first side plate to drive the sub-top plate to slide relative to the main top plate.

3. The movable formwork support system for culverts with various rectangular cross-sections according to claim 2, characterized in that, The upper surfaces of the main top plate and the secondary top plate are flush, the sides of the first side plate and the second side plate away from the walking base are flush, and the main top plate and the second side plate each have multiple strip-shaped protrusions along their width direction, and the secondary top plate and the first side plate each have multiple strip-shaped grooves along their width direction.

4. The movable formwork support system for culverts with various rectangular cross-sections according to claim 2, characterized in that, The two first upright arms are fixed with guide rails on their sides. The transverse drive mechanism includes a horizontal arm that is slidably fitted into the guide rails and a connecting arm that is fixedly connected to the horizontal arm. The connecting arm is fixed to the second side plate. A second hydraulic cylinder is rotatably mounted on the side of the first upright arm facing the second side plate, and a fixing block is fixedly provided on the side of the cross arm. The movable end of the second hydraulic cylinder is hinged to the fixing block.

5. The movable formwork support system for culverts with various rectangular cross-sections according to claim 2, characterized in that, The stabilizing support mechanism includes a first support arm fixed to the bottom of the main top plate and a second support arm that is slidably fitted with the first support arm. The first support arm and the second support arm are inclined to form an inclined support arm group, and the second support arm is also connected to a sliding guide structure disposed on the side of the first side plate facing the walking base.

6. The movable formwork support system for culverts with various rectangular cross-sections according to claim 5, characterized in that, The first support arm and the second support arm are provided with multiple fixing holes at equal intervals along their respective length directions, and the two can be fixed through the fixing holes and fastening bolts adapted to the fixing holes; The sliding guide structure includes a slide rail fixed to the side of the first side plate facing the walking base and a movable block slidably fitted on the slide rail. The movable block is fixedly connected to the end of the second support arm away from the main top plate.

7. The movable formwork support system for culverts with various rectangular cross-sections according to claim 1, characterized in that, The pressure-applying mechanism includes a telescopic arm fixed to the bottom of the sub-top plate and an assembly arm that slidably engages with the telescopic arm. A support arm is fixed to the side of the assembly arm, and a guide arm is fixed to the second upright arm. The support arm passes through the guide arm and the second upright arm and is slidably connected to the guide arm and the second upright arm. The assembly arm is hollow inside and has an elastic component connected to the telescopic arm inside.

8. The movable formwork support system for culverts with various rectangular cross-sections according to claim 7, characterized in that, The elastic component includes a column fixed inside the assembly arm, a cylindrical spring sleeved on the column, and a slider slidably disposed inside the assembly arm. The column passes through the slider and is slidably connected to the slider and the telescopic arm. Two sets of sliding engagement structures are provided between the slider and the second column.

9. The movable formwork support system for culverts with various rectangular cross-sections according to claim 8, characterized in that, The sliding fit structure includes a limiting plate fixed to the second upright arm via a connecting block. A follower arm is fixed to the side of the slider. A protrusion is fixed to the end of the follower arm away from the slider. The limiting plate is provided with an inclined groove adapted to the protrusion. The protrusion extends into the inclined groove and is slidably connected to the limiting plate. When the assembly arm moves away from the second upright arm, the protrusion slides along the inclined groove and causes the follower arm to drive the slider to rise within the assembly arm.

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