Automatic demoulding airport underpass construction trolley

Abstract

The application discloses an automatic demolding airport underpass construction trolley, and belongs to the technical field of airport construction equipment and equipment. A plurality of longitudinal U-shaped grooves are arranged on the outer side of an inner formwork frame in a longitudinal direction, a plurality of longitudinal partitions are arranged in the longitudinal U-shaped grooves at intervals, a transverse waist hole is arranged on the longitudinal partition, a formwork demolding rotating shaft is inserted into the transverse waist hole in the longitudinal U-shaped groove, a demolding gear is sleeved on the formwork demolding rotating shaft, and a strip gear is arranged in the longitudinal U-shaped groove corresponding to the demolding gear. Since the spatial position of the formwork demolding rotating shaft is fixed, when the formwork demolding rotating shaft is rotated, the inner and outer movements of the inner formwork frame are controlled, so that the inner formwork frame and the passageway supporting wall are demolded.

Description

Technical Field

[0001] This invention relates to the field of airport construction equipment and equipment technology, specifically to an automatic demolding construction trolley for airport underpasses. Background Technology

[0002] Currently, the formwork systems used in the construction of concrete structures for airport underpasses and drainage projects both domestically and internationally are mostly combinations of full-span scaffolding (or steel pipe scaffolding) and wooden or steel formwork. Smaller drainage ditches use easily processed wooden support frames or combinations of metal parts and wooden formwork. On the surface, these systems appear to be technically mature, easy to assemble and disassemble, flexible, and slightly cheaper. However, due to the need for repeated assembly and disassembly, they suffer from significant wear and tear, a high number of tie rods, numerous and loose joints, low turnover rate, and slow work efficiency.

[0003] In addition, the underpass of the airport project has large structural space and geometric dimensions, which puts high demands on construction quality and technology. It also needs to meet the anti-seepage requirements of the high groundwater level, and the replacement support is set up during the construction process. All of these put high demands on the formwork system. Traditional formwork systems are clearly insufficient in ensuring construction efficiency and finished product quality in the above aspects.

[0004] like Figure 1-2 The diagram shows the structure of the underpass within the excavation tunnel 40 of the airport project. The initial support wall 41 and the support beams 42 used to support the initial support walls 41 on both sides need to be used to construct the underpass within the excavation tunnel 40. The underpass is generally constructed in sections. First, support platforms 43 are poured on both sides of the bottom of the excavation tunnel. Then, a U-shaped tunnel base slab 44 is poured on the two support platforms 43. Support walls 25 are poured on the two support wall bases 45 of the U-shaped tunnel base slab 44. Finally, the tunnel top slab is poured on the support walls 25 on both sides, forming the underpass. The pouring of the support walls 25 is the most time-consuming and labor-intensive, mainly because the distance between the support walls 25 and the initial support walls 41 is short, making it inconvenient to erect support formwork. If conventional support formwork is used, it requires repeated assembly and disassembly, and subsequent formwork removal will waste a significant amount of time. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an automatic demolding construction trolley for airport underpasses, which solves the problems of cumbersome formwork erection for underpass support walls, non-reusability, time-consuming and labor-intensive formwork assembly and disassembly, and low automation in the construction process of airport underpasses.

[0006] This invention is achieved through the following technical solution:

[0007] An automatic demolding construction trolley for an airport underpass includes a trolley traveling frame and underpass template assemblies. A set of underpass template assemblies is installed on each side of the trolley traveling frame. Each underpass template assembly includes an inner template assembly and an outer template assembly. Both the inner and outer template assemblies include an inner template frame, an outer support frame, end-stop templates, a template demolding pivot, and a template loosening pivot. The outer surface of the inner template frame has multiple longitudinal U-shaped grooves, and multiple longitudinal partitions are spaced apart within these grooves. The longitudinal partitions have transverse waist holes. The template demolding pivot is inserted into the longitudinal U-shaped grooves. In the transverse waist hole inside, a demolding gear is fitted on the demolding shaft of the template, and a toothed bar is provided in the longitudinal U-shaped groove corresponding to the demolding gear; the outer side of the inner template frame is provided with multiple transverse U-shaped grooves, and multiple transverse partitions are spaced apart in the transverse U-shaped grooves. The transverse partitions are provided with longitudinal waist holes. The template loosening shaft is inserted into the longitudinal waist hole in the transverse U-shaped groove. The middle part of the template loosening shaft is a screw section. The transverse partition is divided into multiple loosening slots of different lengths in the transverse U-shaped groove. Eccentric loosening wheels of different specifications are threaded on the template loosening shaft in the loosening slots of different lengths.

[0008] The end stop template is longitudinally installed on the inner end of the inner template frame via a movable connecting shaft; the upper end face of the outer support frame on the inner template assembly and the outer template assembly is connected by an upper U-shaped cantilever plate, and the inner end face is connected by an inner U-shaped cantilever plate. The upper and lower loosening between the inner template frame and the channel support wall is controlled by synchronously rotating the template loosening shaft, and the demolding of the inner template frame and the channel support wall is controlled by synchronously rotating the template demolding shaft.

[0009] Furthermore, the two sides of the trolley traveling frame are connected to the outer support frame on the corresponding inner template assembly.

[0010] Furthermore, the corresponding template demolding shafts on the inner and outer template assemblies are inserted into an upper U-shaped cantilever plate. A demolding shaft gear disc is fitted onto the protruding template demolding shaft on the upper U-shaped cantilever plate. An upper gear that meshes with the two demolding shaft gear discs is provided in the middle of the upper U-shaped cantilever plate. A demolding motor is provided on the outer support frame of the inner template assembly. The demolding motor gear of the demolding motor meshes with the corresponding demolding shaft gear disc.

[0011] Furthermore, the corresponding template loosening shafts on the inner and outer template assemblies are inserted into the inner U-shaped cantilever plate. A loosening shaft gear disc is fitted on the protruding template loosening shaft on the inner U-shaped cantilever plate. A side gear disc that meshes with the two loosening shaft gear discs is provided in the middle of the inner U-shaped cantilever plate. A loosening motor is provided on the outer support frame of the inner template assembly. The loosening motor gear on the loosening motor meshes with the corresponding loosening shaft gear disc.

[0012] Furthermore, the bottom of the trolley traveling frame is equipped with track wheels, which are driven by a track wheel motor.

[0013] Furthermore, the outer end of the outer support frame is provided with a loosening shaft mounting plate for installing the loosening shaft of the template.

[0014] Furthermore, the outer support frame of the outer template assembly is provided with multiple elastic rollers on its outer side surface, and multiple support rollers are provided at the bottom end of the outer support frame.

[0015] Furthermore, a compression spring is provided between the outer end of the movable connecting shaft on the end stop template and the inner template frame.

[0016] Furthermore, the inner side of the outer support frame is provided with multiple connecting shafts, and the ends of the connecting shafts are provided with sliding sleeves. The connecting shafts are correspondingly sleeved on the template demolding shaft through the sliding sleeves.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] 1. This invention relates to an automatic demolding construction trolley for an airport underpass. Multiple longitudinal U-shaped grooves are longitudinally arranged on the outer side of the inner formwork frame. Multiple longitudinal partitions are spaced apart within the longitudinal U-shaped grooves, and transverse waist holes are provided on the longitudinal partitions. A demolding shaft is inserted into the transverse waist holes within the longitudinal U-shaped grooves. A demolding gear is fitted onto the demolding shaft, and a toothed strip is provided within the corresponding longitudinal U-shaped groove. Since the spatial position of the demolding shaft is fixed, rotating the shaft controls the inward and outward movement of the inner formwork frame, thereby achieving demolding of the inner formwork frame from the underpass support wall.

[0019] 2. The automatic demolding construction trolley for airport underpass of the present invention forms a strong adsorption force between the underpass support wall and the inner formwork frame after the underpass support wall is poured, making it difficult to separate the inner formwork frame from the underpass support wall. If a violent action is used, the underpass support wall or the inner formwork frame can be easily damaged.

[0020] The present invention features multiple transverse U-shaped grooves on the outer side of the inner template frame, with multiple transverse partitions spaced apart within the transverse U-shaped grooves. The transverse partitions have longitudinal waist holes. The template loosening shaft is inserted into the longitudinal waist holes within the transverse U-shaped grooves. The middle part of the template loosening shaft is a screw section. The transverse partitions are divided into multiple loosening slots of different lengths on the transverse U-shaped grooves. Eccentric loosening wheels of different specifications are threaded onto the template loosening shafts within the loosening slots of different lengths.

[0021] Rotating the template loosening shaft drives the eccentric loosening wheel to rotate. The eccentric loosening wheel continuously presses against the transverse U-shaped groove, causing the inner template frame to loosen up and down. In addition, eccentric loosening wheels of different specifications are threaded on the template loosening shaft, which is set in loosening grooves of different lengths. Smaller eccentric loosening wheels are installed in the shorter loosening grooves, and larger eccentric loosening wheels are installed in the longer loosening grooves. Because the length of the loosening grooves is not uniform, when the template loosening shaft is rotated, all the eccentric loosening wheels move on the screw of the template loosening shaft 9. When the eccentric loosening wheel abuts against the transverse partition, it cannot move and can only rotate, thereby striking and pressing the transverse U-shaped groove. As the template loosening shaft continues to rotate, due to the different lengths of the loosening grooves, the eccentric loosening wheels of different specifications gradually become unable to move and can only rotate. The larger the eccentric loosening wheel, the greater the striking intensity of the rotation, and the greater the range of up and down loosening of the inner template frame, thus making demolding easier. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the channel support wall of the present invention when it is not poured.

[0024] Figure 2 This is a schematic diagram of the structure for completing the casting of the channel support wall according to the present invention.

[0025] Figure 3 This is a schematic diagram of the structure of an airport underpass construction trolley with automatic demolding according to the present invention.

[0026] Figure 4 This is a schematic diagram of the usage state of an airport underpass construction trolley with automatic demolding according to the present invention.

[0027] Figure 5 This is a schematic diagram of the channel template component of the present invention. Figure 1 .

[0028] Figure 6 This is a schematic diagram of the channel template component of the present invention. Figure 2 .

[0029] Figure 7 This is a schematic diagram of the internal structure of the channel template component of the present invention.

[0030] Figure 8 This is a schematic diagram of the internal template frame of the present invention. Figure 1 .

[0031] Figure 9 This is a schematic diagram of the internal template frame of the present invention. Figure 2 .

[0032] Figure 10 This is a schematic diagram of the internal template frame of the present invention. Figure 3 .

[0033] Figure 11 This is a schematic diagram of the structure of the outer template frame of the present invention.

[0034] The attached diagram shows the markings and corresponding component names:

[0035] 1- Carriage traveling frame, 2- Channel template assembly, 3- Inner template assembly, 4- Outer template assembly, 5- Inner template frame, 6- Outer support frame, 7- End stop template, 8- Template demolding pivot, 9- Template loosening pivot, 10- Longitudinal U-shaped groove, 11- Longitudinal partition, 12- Transverse waist hole, 13- Demolding gear, 14- Transverse U-shaped groove, 15- Transverse partition, 16- Longitudinal waist hole, 17- Loosening groove, 18- Toothed rack, 19- Eccentric loosening wheel, 20- Connecting shaft, 21- Sliding sleeve, 22- Movable connecting shaft, 23- Upper U-shaped groove 24-Inner U-shaped cantilever plate, 25-Channel support wall, 26-Demolding shaft gear disc, 27-Upper gear disc, 28-Demolding motor, 29-Demolding motor gear, 30-Loosening shaft gear disc, 31-Side gear disc, 32-Loosening motor, 33-Loosening motor gear, 34-Railway wheel, 35-Railway wheel motor, 36-Loosening shaft mounting plate, 37-Elastic roller, 38-Support roller, 39-Compression spring, 40-Excavated channel, 41-Excavated initial support wall, 42-Support beam, 43-Channel support platform, 44-U-shaped channel bottom plate, 45-Support wall base. Implementation

[0036] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0039] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0040] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] Example 1

[0043] like Figure 1-11As shown, this invention discloses an automatic demolding construction trolley for an airport underpass, comprising a trolley traveling frame 1 and a tunnel template assembly 2. A tunnel template assembly 2 is provided on each side of the trolley traveling frame 1. The trolley traveling frame 1 can be various forms of support frame structure depending on the requirements of the construction site. When pouring the tunnel support wall 25, guide rails are laid on the U-shaped tunnel base plate 44, and the trolley traveling frame 1 is mounted on the guide rails, driven and controlled automatically by a track wheel motor 35. The tunnel template assembly 2 includes an inner template assembly 3 and an outer template assembly 4. The inner template assembly 3 and the outer template assembly 4 form a pouring trough for pouring the tunnel support wall 25. The main structures of the outer template assembly 4 are the same. Both the inner template assembly 3 and the outer template assembly 4 include an inner template frame 5, an outer support frame 6, an end stop template 7, a template demolding shaft 8, and a template loosening shaft 9. In this embodiment, the outer side of the inner template frame 5 is provided with two longitudinal U-shaped grooves 10. Multiple longitudinal partitions 11 are spaced apart in the longitudinal U-shaped grooves 10. The longitudinal partitions 11 are provided with transverse waist holes 12. The template demolding shaft 8 is inserted into the transverse waist holes 12 in the longitudinal U-shaped grooves 10. A demolding gear 13 is sleeved on the template demolding shaft 8. The longitudinal U-shaped grooves 10 corresponding to the demolding gear 13 are provided with rack teeth 18. The rack teeth 18 mesh with the demolding gear 13 for transmission. Multiple longitudinal U-shaped grooves 10 are provided on the outer side of the inner template frame 5. Multiple longitudinal partitions 11 are provided at intervals in the longitudinal U-shaped grooves 10. The longitudinal partitions 11 are provided with transverse waist holes 12. The template demolding shaft 8 is inserted into the transverse waist holes 12 in the longitudinal U-shaped grooves 10. A demolding gear 13 is sleeved on the template demolding shaft 8. The longitudinal U-shaped grooves 10 corresponding to the demolding gear 13 are provided with teeth 18. Since the spatial position of the template demolding shaft 8 is fixed, when the template demolding shaft 8 is rotated, it will control the inner template frame 5 to move inward and outward, thereby realizing the demolding of the inner template frame 5 from the channel support wall 25.

[0044] In this embodiment, the outer side of the inner template frame 5 is provided with two transverse U-shaped grooves 14. Multiple transverse partitions 15 are spaced apart in the transverse U-shaped grooves 14. The transverse partitions 15 are provided with longitudinal waist holes 16. The template loosening shaft 9 is inserted into the longitudinal waist hole 16 in the transverse U-shaped groove 14. The middle part of the template loosening shaft 9 is a screw section. The transverse partitions 15 are divided into four loosening slots 17 in the transverse U-shaped grooves 14. There are two pairs of loosening slots 17 of the same length. Different specifications of eccentric loosening wheels 19 are threaded on the template loosening shafts 9 in the loosening slots 17 of different lengths. The corresponding loosening slots 17 can be set as needed.

[0045] After the channel support wall 25 is poured, a strong adsorption force is formed between the channel support wall 25 and the inner formwork frame 5, making it difficult to separate the inner formwork frame 5 from the channel support wall 25. If a violent action is used, the channel support wall 25 or the inner formwork frame 5 can be easily damaged.

[0046] The present invention has multiple transverse U-shaped grooves 14 on the outer side of the inner template frame 5. Multiple transverse partitions 15 are spaced apart in the transverse U-shaped grooves 14. The transverse partitions 15 are provided with longitudinal waist holes 16. The template loosening shaft 9 is inserted into the longitudinal waist holes 16 in the transverse U-shaped grooves 14. The middle part of the template loosening shaft 9 is a screw section. The transverse partitions 15 are divided into multiple loosening slots 17 of different lengths in the transverse U-shaped grooves 14. Eccentric loosening wheels 19 of different specifications are threaded on the template loosening shaft 9 in the loosening slots 17 of different lengths.

[0047] Rotating the template loosening shaft 9 drives the eccentric loosening wheel 19 to rotate. The eccentric loosening wheel 19 continuously presses against the transverse U-shaped groove 14, causing the inner template frame 5 to loosen up and down. Additionally, eccentric loosening wheels 19 of different specifications are threaded onto the template loosening shaft 9, which is located in loosening slots 17 of different lengths. Smaller eccentric loosening wheels 19 are installed in shorter loosening slots 17, while larger eccentric loosening wheels 19 are installed in longer slots. Because the lengths of the loosening slots 17 are not uniform, all eccentric loosening wheels 19 are loosened when the template loosening shaft 9 is rotated. The wheels 19 all move on the lead screw of the template loosening shaft 9. When the eccentric loosening wheel 19 abuts against the transverse partition 15, it cannot move and can only rotate, thereby striking and squeezing the transverse U-shaped groove 14. As the template loosening shaft 9 continues to rotate, due to the different lengths of the loosening groove 17, the eccentric loosening wheels 19 of different specifications gradually become unable to move and can only rotate. The larger the specification of the eccentric loosening wheel 19, the greater the intensity of the rotating and striking, and the greater the range of vertical loosening of the inner template frame 5, thus making it easier to demold.

[0048] The inner side of the outer support frame 6 is provided with multiple connecting shafts 20. The ends of the connecting shafts 20 are provided with sliding sleeves 21. The connecting shafts 20 are correspondingly sleeved on the template demolding shaft 8 through the sliding sleeves 21. The connection between the multiple connecting shafts 20 and the template demolding shaft 8 is mainly to fix the outer support frame 6, and then indirectly support the inner template frame 5 through the outer support frame 6. The end stop template 7 is longitudinally installed on the inner end of the inner template frame 5 through the movable connecting shaft 22. The upper end face of the outer support frame 6 on the inner template assembly 3 and the outer template assembly 4 is connected by the upper U-shaped cantilever plate 23, and the inner end face is connected by the inner U-shaped cantilever plate 24. By synchronously rotating the template loosening shaft 9, the inner template frame 5 and the channel support wall 25 are controlled to loosen up and down. By synchronously rotating the template demolding shaft 8, the inner template frame 5 and the channel support wall 25 are demolded.

[0049] like Figure 1-9As shown, this invention discloses an automatic demolding construction trolley for an airport underpass. When pouring the underpass support wall 25, the construction trolley is transported onto the U-shaped underpass base plate 44. The trolley's traveling frame 1 is mounted on guide rails and placed in its designated position. Initially, the pair of inner formwork frames 5 are separate. Through synchronous control of the demolding motor gear 29, the pair of inner formwork frames 5 are brought together, with the end stop templates 7 also engaging. The vertical position of the pair of inner formwork frames 5 is adjusted by loosening the motor gear 33 to ensure that the inner formwork frames 5 form a sealed pouring trough. It should be noted that only one end of the pair of inner formwork frames 5 has the end stop template 7; the other end requires a separate template, which is used only once and is not needed again during subsequent continuous pouring of the underpass support wall 25. After the template is set, pouring can begin, and the underpass support wall 25 to be poured initially solidifies, with the inner formwork frames 5 and the underpass support wall 25 adhering very firmly. The next step is demolding, moving the construction trolley to pour the next section of the underpass support wall 25.

[0050] The demolding procedure is as follows: First, control the loosening motor gear 33 to continuously vibrate and tap the pair of inner template frames 5 up and down, gradually increasing the force until the inner template frames 5 and the channel support wall 25 have almost no adhesion. Then, by synchronously controlling the demolding motor gear 29, the pair of inner template frames 5 are separated from the channel support wall 25, completing the demolding. The construction trolley can then be moved to pour the next section of the channel support wall 25.

[0051] The two sides of the trolley traveling frame 1 are connected to the outer support frame 6 on the corresponding inner template assembly 3.

[0052] Example 2

[0053] like Figure 1-11 As shown, the present invention discloses an automatic demolding construction trolley for an airport underpass. Based on the above embodiment, the demolding shafts 8 corresponding to the inner template assembly 3 and the outer template assembly 4 are inserted into an upper U-shaped cantilever plate 23. A demolding shaft gear disk 26 is sleeved on the protruding demolding shaft 8 on the upper U-shaped cantilever plate 23. An upper gear disk 27 that meshes with the two demolding shaft gear disks 26 is provided in the middle of the upper U-shaped cantilever plate 23. A demolding motor 28 is provided on the outer support frame 6 of the inner template assembly 3. The demolding motor gear 29 on the demolding motor 28 meshes with the corresponding demolding shaft gear disk 26.

[0054] In this embodiment, a set of demolding motors 28 can simultaneously control a pair of demolding shafts 8 on the inner template assembly 3 and the outer template assembly 4. During the demolding process, all demolding motors 28 need to be controlled synchronously to prevent the inner template frame 5 from deforming and being damaged.

[0055] The template loosening shafts 9 on the inner template assembly 3 and the outer template assembly 4 are inserted into the inner U-shaped cantilever plate 24. The template loosening shafts 9 protruding from the inner U-shaped cantilever plate 24 are fitted with loosening shaft gear discs 30. The middle part of the inner U-shaped cantilever plate 24 is provided with a side gear disc 31 that meshes with the two loosening shaft gear discs 30. A loosening motor 32 is provided on the outer support frame 6 of the inner template assembly 3. The loosening motor gear 33 on the loosening motor 32 meshes with the corresponding loosening shaft gear disc 30.

[0056] A set of loosening motors 32 controls a pair of template loosening shafts 9 on the inner template assembly 3 and the outer template assembly 4. All loosening motors 32 must also be controlled synchronously so that the eccentric loosening wheels 19 of the same specification act synchronously in one direction.

[0057] The bottom of the trolley traveling frame 1 is provided with track wheels 34, which are driven by track wheel motors 35.

[0058] The outer support frame 6 is equipped with a loosening shaft mounting plate 36 for mounting the template loosening shaft 9 at its outer end. The spatial position of the inner template frame 5 is mainly achieved through: 1. The template demolding shaft 8 is suspended from the corresponding upper U-shaped cantilever plate 23; 2. One end of the template loosening shaft 9 is mounted on the inner U-shaped cantilever plate 24, and the other end is mounted on the loosening shaft mounting plate 36. The structure is mainly supported by these two aspects.

[0059] Multiple elastic rollers 37 are provided on the outer surface of the outer support frame 6 on the outer formwork assembly 4, and multiple support rollers 38 are provided at the bottom of the outer support frame 6. The outer support frame 6 on the outer formwork assembly 4 rests against the excavated initial support wall 41 through the elastic rollers 37, and the bottom of the outer support frame 6 is supported on the step between the excavated initial support wall 41 and the channel support wall base 45 through the support rollers 38. Both the elastic rollers 37 and the support rollers 38 are used to support and stabilize the outer formwork assembly 4. The reason for using elastic rollers 37 is that the excavated initial support wall 41 is uneven, and multiple elastic rollers 37 are needed to form a stable support.

[0060] A compression spring 39 is provided between the outer end of the movable connecting shaft 22 on the end stop template 7 and the inner template frame 5. The end stop template 7 is designed to form an interface between the connecting ends of the channel support wall 25, facilitating a firm connection between each section of the channel support wall 25. Due to the presence of the stop template, the end stop template 7 cannot move laterally with the inner template frame 5. However, the end stop template 7 needs to move vertically to eliminate the adsorption force between itself and the channel support wall 25. Therefore, this connection relationship between the end stop template 7 and the inner template frame 5 is designed. Without external force, the end stop template 7 adheres to the inner template frame 5. When the inner template frame 5 moves laterally, the end stop template 7 will not move laterally due to the movable connecting shaft 22. If the inner template frame 5 moves vertically, the end stop template 7 will also move vertically accordingly.

[0061] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automatic demolding construction trolley for an airport underpass, comprising a trolley traveling frame (1) and a passage formwork assembly (2), characterized in that: The trolley traveling frame (1) is provided with a set of channel template assemblies (2) on both sides; the channel template assembly (2) includes an inner template assembly (3) and an outer template assembly (4). The inner template assembly (3) and the outer template assembly (4) each include an inner template frame (5), an outer support frame (6), an end stop template (7), a template demolding pivot (8), and a template loosening pivot (9). The outer side of the inner template frame (5) is provided with multiple longitudinal U-shaped grooves (10). Multiple longitudinal partitions (11) are spaced apart in the longitudinal U-shaped grooves (10). The longitudinal partitions (11) are provided with transverse waist holes (12). The template demolding pivot (8) is inserted into the transverse waist holes (12) in the longitudinal U-shaped grooves (10). The template demolding pivot (8) is sleeved on the template demolding pivot (8). There is a demolding gear (13), and a toothed bar (18) is provided in the longitudinal U-shaped groove (10) corresponding to the demolding gear (13); the outer side of the inner template frame (5) is provided with multiple transverse U-shaped grooves (14), and multiple transverse partitions (15) are provided at intervals in the transverse U-shaped grooves (14). The transverse partitions (15) are provided with longitudinal waist holes (16). The template loosening shaft (9) is inserted into the longitudinal waist hole (16) in the transverse U-shaped groove (14). The middle part of the template loosening shaft (9) is a screw section. The transverse partitions (15) are divided into multiple loosening slots (17) of different lengths in the transverse U-shaped grooves (14). Different eccentric loosening wheels (19) of different specifications are threaded on the template loosening shafts (9) in the loosening slots (17) of different lengths. The end stop template (7) is longitudinally installed on the inner end of the inner template frame (5) via a movable connecting shaft (22); the two outer support frames (6) on a set of channel template assembly (2) are connected at the upper end via an upper U-shaped cantilever plate (23) and at the inner end via an inner U-shaped cantilever plate (24); the inner template frame (5) and the channel support wall (25) are loosened up and down by synchronously rotating the template loosening shaft (9); the inner template frame (5) and the channel support wall (25) are demolded by synchronously rotating the template demolding shaft (8).

2. The automatic demolding construction trolley for an airport underpass as described in claim 1, characterized in that: The trolley traveling frame (1) is connected on both sides to the outer support frame (6) on the corresponding inner template assembly (3).

3. The automatic demolding construction trolley for an airport underpass as described in claim 1, characterized in that: The template demolding shafts (8) corresponding to the inner template assembly (3) and the outer template assembly (4) are inserted on an upper U-shaped cantilever plate (23). A demolding shaft gear disk (26) is sleeved on the protruding template demolding shaft (8) on the upper U-shaped cantilever plate (23). An upper gear disk (27) is provided in the middle of the upper U-shaped cantilever plate (23) and meshes with the two demolding shaft gear disks (26). A demolding motor (28) is provided on the outer support frame (6) of the inner template assembly (3). The demolding motor gear (29) on the demolding motor (28) meshes with the corresponding demolding shaft gear disk (26).

4. The automatic demolding construction trolley for an airport underpass as described in claim 1, characterized in that: The template loosening shafts (9) on the inner template assembly (3) and the outer template assembly (4) are inserted on the inner U-shaped cantilever plate (24). The template loosening shaft (9) protruding on the inner U-shaped cantilever plate (24) is fitted with a loosening shaft gear disc (30). The middle part of the inner U-shaped cantilever plate (24) is provided with a side gear disc (31) that meshes with the two loosening shaft gear discs (30). A loosening motor (32) is provided on the outer support frame (6) of the inner template assembly (3). The loosening motor gear (33) on the loosening motor (32) meshes with the corresponding loosening shaft gear disc (30).

5. The automatic demolding construction trolley for an airport underpass as described in claim 1, characterized in that: The bottom of the trolley traveling frame (1) is provided with a track wheel (34), which is driven by a track wheel motor (35).

6. The automatic demolding construction trolley for an airport underpass as described in claim 1, characterized in that: The outer end of the outer support frame (6) is provided with a loosening shaft mounting plate (36) for installing the loosening shaft (9) of the template.

7. The automatic demolding construction trolley for an airport underpass as described in claim 1, characterized in that: The outer support frame (6) on the outer template assembly (4) is provided with multiple elastic rollers (37) on its outer side surface, and multiple support rollers (38) are provided at the bottom of the outer support frame (6).

8. The automatic demolding construction trolley for an airport underpass as described in claim 1, characterized in that: A compression spring (39) is provided between the outer end of the movable connecting shaft (22) on the end stop template (7) and the inner template frame (5).

9. An automatic demolding construction trolley for an airport underpass according to any one of claims 1-8, characterized in that: The inner side of the outer support frame (6) is provided with multiple connecting shafts (20), and the end of the connecting shaft (20) is provided with a sliding sleeve (21). The connecting shaft (20) is correspondingly sleeved on the template demolding shaft (8) through the sliding sleeve (21).

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