A formwork support system suitable for narrow space and construction method thereof

Abstract

The present application relates to the technical fields of narrow space formwork support construction, aiming at solving the problem that the steel pipe support frame erection cannot ensure standardization, safety and applicability and is difficult to remove when the existing technology carries out formwork support operation in narrow space, and providing a formwork support system suitable for narrow space and a construction method thereof; the system comprises multiple rows of hinged vertical rods, each row of hinged vertical rods comprises multiple hinged vertical rods arranged at intervals, each hinged vertical rod comprises segment one and segment two, and the bottom of segment one is hinged to the top of segment two; multiple segment ones are connected with a first horizontal connecting rod, and the segment one is hinged to the first horizontal connecting rod; the bottoms of multiple segment ones are connected with a second horizontal connecting rod, and the segment one is hinged to the second horizontal connecting rod, and the second horizontal connecting rod is slidingly connected with the segment one; multiple limiting devices are installed on the second horizontal connecting rod, and the sliding of the second horizontal connecting rod can make the limiting devices abut against or separate from the hinged vertical rod.

Description

Technical Field

[0001] This invention relates to the field of formwork support construction technology in confined spaces, and more specifically, to a formwork support system and its construction method suitable for confined spaces. Background Technology

[0002] In municipal engineering projects, formwork support work is often carried out in confined spaces such as channels. Due to the limited working space, construction using existing steel pipe support frames often fails to ensure the standardization, safety, and applicability of the support frame erection. Improper support frame erection can easily lead to structural deformation, grout leakage, and other problems. Furthermore, due to the confined space, workers cannot freely enter and exit the work area after the top slab concrete is poured, making the dismantling of the formwork support frame extremely difficult and potentially causing further quality and safety issues. Summary of the Invention

[0003] The present invention aims to provide a formwork support system and its construction method suitable for confined spaces, in order to solve the problems in the prior art where the erection of steel pipe support frames cannot ensure standardization, safety and applicability, and is difficult to dismantle when performing formwork support operations in confined spaces.

[0004] This invention is achieved using the following technical solution:

[0005] This invention provides a template support system suitable for confined spaces, comprising multiple rows of hinged uprights, each row of hinged uprights comprising multiple spaced hinged uprights, each of the hinged uprights comprising a segment one and a segment two, the bottom of the segment one being hinged to the top of the segment two.

[0006] In each row of hinged uprights, multiple segments are connected by a first horizontal connecting rod, and the segments are hinged to the first horizontal connecting rod.

[0007] In each row of hinged uprights, a second horizontal connecting rod is connected between the bottoms of multiple segments one. The segments one are hinged to the second horizontal connecting rod, while the second horizontal connecting rod is slidably connected to the segments one.

[0008] The second horizontal connecting rod is equipped with multiple limiting devices, each of which corresponds to one of the hinged uprights. The sliding of the second horizontal connecting rod can cause the limiting device to abut or separate from the hinged upright.

[0009] When the limiting device abuts against the hinged upright, the limiting device abuts against one side of the connection between segment one and segment two, and the limiting device restricts segment one from rotating relative to segment two; when the limiting device separates from the hinged upright, segment one can rotate relative to segment two.

[0010] The formwork support system of this invention provides vertical support for the top slab formwork in confined spaces using hinged uprights. Multiple hinged uprights are connected by horizontal connecting rods to form a stable support structure, ensuring standardized erection and high safety. The hinged uprights of this invention are designed with two segments. The bottom of segment one is hinged to the top of segment two. The first horizontal connecting rod can drive multiple segments one to rotate synchronously, thereby changing the height of the hinged uprights and lowering the overall height of the formwork support system. This allows the formwork support system to be separated from the top structure, facilitating its removal from confined spaces. To facilitate operation in confined spaces, this invention features a second horizontal connecting rod that slides to segment one and is equipped with a limiting device. The sliding of the second horizontal connecting rod allows the limiting device to engage or disengage from the hinged upright. When engaged, the limiting device holds the connection between segment one and segment two, restricting the rotation of segment one and keeping it vertical. When disengaged, segment one can rotate relative to segment two, allowing the hinged upright to fold. This enables switching between the vertical and inclined states of segment one, applicable to both the installation and dismantling phases of the formwork support system. During dismantling, the limiting device can be removed by horizontally moving the second horizontal connecting rod, facilitating the folding of the hinged upright. This solves the problem of workers being unable to enter confined spaces to install or dismantle the top formwork and its support system.

[0011] The formwork support system of this invention has a simple overall structure, is stable and reliable, and is easy to install and disassemble. Furthermore, the quality of each component of the formwork support system is controllable and reusable, reducing material waste, saving construction costs, and improving the efficiency of formwork erection and dismantling.

[0012] As a preferred technical solution:

[0013] The first horizontal connecting rod is connected to the first segment via a rotating shaft;

[0014] The second horizontal connecting rod has multiple sliding slots, and each sliding slot is equipped with a rotating shaft. The second horizontal connecting rod is connected to the segment through the rotating shaft.

[0015] As a preferred technical solution:

[0016] The limiting device uses a tenon, which includes an insertion part and a blocking part. Each segment one has a mortise on one side. The insertion part of the tenon faces the mortise and can fit into the mortise. The blocking part of the tenon can abut against one side of segment one and segment two, thereby restricting the rotation of segment one.

[0017] When the formwork support system supports the top slab formwork, the tenon is engaged in the mortise, and the tenon's abutting part abuts the connection between segment one and segment two, restricting the rotation of segment one, fixing segment one, and keeping segment one in a vertical state, so that the hinged upright can play the role of vertical support; when it is necessary to dismantle the formwork support system, the second horizontal connecting rod slides laterally relative to segment one, causing the tenon to exit the mortise, the tenon to separate from segment one, so that segment one can rotate relative to segment two, the height of the hinged upright is reduced, thus facilitating the dismantling of the formwork support system and the top slab formwork.

[0018] As a preferred technical solution:

[0019] The limiting device is not limited to using a tenon; a limiting plate can also be used, but the combination of a tenon and a mortise provides better limiting and fixing effects. The limiting device can also employ other limiting mechanisms that restrict the rotation of the segment, as long as they achieve the desired purpose.

[0020] As a preferred technical solution:

[0021] The top of segment one is connected to an adjustable top support, and the bottom of segment two is connected to an adjustable base.

[0022] As a preferred technical solution:

[0023] The adjustable base is equipped with load-bearing wheels at its bottom.

[0024] As a preferred technical solution:

[0025] The template support system also includes a fixed upright, which is detachably connected to the ends of the first horizontal connecting rod and the second horizontal connecting rod, and the fixed upright is located at the inspection port.

[0026] The fixed upright can help fix the horizontal connecting rod and ensure that the hinged upright is vertical and stable under force.

[0027] As a preferred technical solution:

[0028] The top of the fixed pole is connected to an adjustable top support, and the bottom is connected to an adjustable base.

[0029] As a preferred technical solution:

[0030] The adjustable top support is connected to a main rib, and a secondary rib is provided on the top of the main rib. A template is installed on the top of the secondary rib. The length direction of the secondary rib is the same as the length direction of the first horizontal connecting rod and the second horizontal connecting rod, and the length direction of the main rib is perpendicular to the length direction of the secondary rib.

[0031] As a preferred technical solution:

[0032] The main beam is detachably connected to the adjustable top support, which facilitates the free installation and removal of the main beam.

[0033] As a preferred technical solution:

[0034] One end of the bottom surface of segment one is hinged to one end of the top surface of segment two.

[0035] As a preferred technical solution:

[0036] The first horizontal connecting rod and the second horizontal connecting rod are connected by multiple steel pipes.

[0037] As a preferred technical solution:

[0038] Multiple steel pipes are connected by threads, which facilitates assembly and disassembly.

[0039] As a preferred technical solution:

[0040] Segment one and segment two can also be freely assembled and disassembled to adapt to different operating conditions.

[0041] This invention further provides a construction method for a formwork support system suitable for confined spaces.

[0042] Includes the following steps:

[0043] S1: Erect a formwork support system and place it in a confined space;

[0044] Based on the actual conditions of the confined space, the hinged uprights, adjustable bases, load-bearing wheels, first horizontal connecting rods, and second horizontal connecting rods are assembled together. During the assembly process, the adjustable bases are installed at the bottom of the hinged uprights, and the load-bearing wheels are installed at the bottom of the adjustable bases. Then, all the hinged uprights are arranged in multiple rows, with multiple hinged uprights in each row spaced apart. The first horizontal connecting rod and the second horizontal connecting rod are connected between the multiple hinged uprights in each row. The first horizontal connecting rod is hinged to the multiple hinged uprights, and the tenon on the second horizontal connecting rod is inserted into the mortise on the hinged upright, keeping the tenon and the mortise in a fixed state.

[0045] Then connect the adjustable base to the bottom of the fixed pole, and connect the fixed pole to one end of the first horizontal connecting rod and the second horizontal connecting rod; place the assembled structure into the narrow space, and position the fixed pole at the inspection port;

[0046] Then, connect the adjustable top support to the top of the hinged upright and the fixed upright. After adjusting the elevation of the adjustable top support, fix the main rib on the adjustable top support, install the secondary rib above the main rib, and then lay the formwork and tie the steel bars on the upper part of the secondary rib.

[0047] S2: Pour concrete for the roof slab of the narrow space and cure it;

[0048] S3: Remove the formwork support system when the concrete strength of the top slab reaches the design strength;

[0049] First, remove the fixed uprights at the inspection port; then, tap the end of the second horizontal connecting rod to make it slide horizontally relative to the hinged upright through the sliding groove, while simultaneously causing the tenon on the second horizontal connecting rod to disengage from the mortise on the hinged upright, thus separating the tenon from the mortise; then, tap the end of the first horizontal connecting rod to cause the first horizontal connecting rod to rotate and fold the hinged upright through the rotating shaft, thus separating the formwork support system from the top structure.

[0050] S4: Drag the folded template support system to the inspection port and dismantle the template support system in sections.

[0051] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0052] 1. The template support system of the present invention has a simple overall structure, is stable and reliable, and is easy to install and disassemble. It can be assembled externally and placed into a narrow space as a whole, which standardizes the template support operation in narrow spaces and avoids problems such as structural deformation, grout leakage, and seepage. Moreover, the structure is stable and has good safety. The number, size, spacing and the size of the horizontal connecting rods can be selected according to the actual situation of the narrow space to adapt to different working conditions, and it has strong applicability.

[0053] 2. The hinged uprights of the present invention can be rotated and folded to reduce height and facilitate subsequent dismantling of the formwork support system and top slab formwork.

[0054] 3. This invention solves the practical problem that workers cannot enter confined spaces to install and dismantle the top formwork and its support system. At the same time, the quality of each component of the formwork support system is controllable and reusable, which reduces material waste, saves construction costs, and improves the efficiency of formwork erection and dismantling. Attached Figure Description

[0055] Figure 1 This is a structural diagram of the template support system for confined spaces described in this invention under its supported state.

[0056] Figure 2 This is a schematic diagram of the dismantled state of the template support system for confined spaces described in this invention.

[0057] Icons: 1-Hinged upright, 101-Segment 1, 102-Segment 2, 2-First horizontal connecting rod, 3-Second horizontal connecting rod, 4-Rotating shaft, 5-Sliding slot, 6-Tongue, 7-Tongue groove, 8-Narrow space, 9-Inspection port, 10-Adjustable top support, 11-Adjustable base, 12-Load-bearing wheel, 13-Main rib, 14-Secondary rib, 15-Template, 16-Fixed upright. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] Example 1

[0060] like Figures 1-2 As shown, this embodiment proposes a template support system suitable for confined spaces, including multiple rows of hinged uprights 1. Each row of hinged uprights 1 includes multiple hinged uprights 1 arranged at intervals. Each hinged upright 1 includes a first segment 101 and a second segment 102. The bottom of the first segment 101 is hinged to the top of the second segment 102. Therefore, the first segment 101 can rotate relative to the second segment 102.

[0061] The top of segment 101 is connected to an adjustable top support 10, and the bottom of segment 102 is connected to an adjustable base 11. The heights of both the adjustable top support 10 and the adjustable base 11 can be adjusted within a certain range.

[0062] The hinged upright 1 mainly serves as a vertical support, transferring the upper load to the adjustable base 11. Different sizes of the hinged upright 1 can be combined with the adjustable top support 10 and the adjustable base 11 to adjust to different support heights, so as to adapt to different erection spaces.

[0063] The adjustable base 11 is equipped with load-bearing wheels 12 at its bottom, which facilitates the movement of the hinged upright 1.

[0064] The template support system also includes a first horizontal connecting rod 2 and a second horizontal connecting rod 3, which are arranged horizontally. The first horizontal connecting rod 2 is hinged to the middle or upper part of a plurality of segments 101 in each row of hinged uprights 1. Specifically, the first horizontal connecting rod 2 and the segments 101 are connected by a rotating shaft 4, and the first horizontal connecting rod 2 and the segments 101 can rotate. When the first horizontal connecting rod 2 is pushed along the axial direction of the first horizontal connecting rod 2, the plurality of segments 101 will tilt synchronously. The first horizontal connecting rod 2 remains horizontal, and the segments 101 rotate a certain angle relative to the segments 102.

[0065] The second horizontal connecting rod 3 is connected to the bottom of multiple segments 101 in each row of hinged uprights 1. Segments 101 are hinged to the second horizontal connecting rod 3, and simultaneously, the second horizontal connecting rod 3 is slidably connected to segments 101. Specifically, the second horizontal connecting rod 3 has multiple sliding slots 5, each of which houses a rotating shaft 4. The second horizontal connecting rod 3 is connected to segments 101 via the rotating shaft 4, which can slide within the sliding slot 5. Therefore, segments 101 can not only rotate relative to the second horizontal connecting rod 3, but the second horizontal connecting rod 3 can also slide laterally relative to segments 101 in the horizontal direction.

[0066] Through the above structure, not only is the relative rotation between segment 101 and segment 2 102 realized, but also the synchronous rotation of multiple segments 101 is realized. When segment 101 rotates, segment 101 is in an inclined state. Therefore, after the top plate above the template support system is poured, multiple segments 101 can be uniformly adjusted to an inclined state. With the help of the load-bearing wheels 12, the template support system can be moved to the inspection port 9 and then taken out.

[0067] However, during installation of the template support system, which serves as a load-bearing structure, segment 101 cannot rotate; otherwise, it will not provide stable support. Therefore, in this embodiment, it is further restricted that one end of the bottom surface of segment 101 is hinged to one end of the top surface of segment 102. Thus, segment 101 can only rotate in one direction relative to segment 102. Figure 2As shown, segment one 101 can only rotate to the left relative to segment two 102. Simultaneously, during the support process of the template support system, it is necessary to restrict the rotation of segment one 101. Therefore, in this embodiment, further restriction is implemented: multiple tenons 6 are installed on the second horizontal connecting rod 3, each tenon 6 corresponding to one segment one 101, and each tenon 6 is located on the left side of the corresponding segment one 101. Each tenon 6 includes an insertion part and a blocking part. A mortise 7 is provided on the left side of each segment one 101. The insertion part of the tenon 6 faces the mortise 7, and the insertion part of the tenon 6 can fit precisely into the mortise 7. The blocking part of the tenon 6 can abut against the left side of both segment one 101 and segment two 102, thereby restricting the leftward rotation of segment one 101.

[0068] When the insertion part of the tenon 6 is inserted into the mortise 7, the abutting part of the tenon 6 abuts against the left side of the first segment 101 and the second segment 102, keeping the first segment 101 vertical, thereby keeping the hinged upright 1 in a vertical state to support the upper structure.

[0069] When the tenon 6 separates from the mortise 7, segment 101 can rotate to the left relative to segment 2 102. After rotating, segment 101 is tilted, thus reducing the height of the hinged upright 1. After the top plate above the template support system is poured, multiple segments 101 can be adjusted to tilted positions, which, together with the load-bearing wheels 12, facilitates dragging the template support system toward the inspection port 9 area.

[0070] The tenon 6 is not limited to being used; other limiting mechanisms such as limiting plates can also be used. However, the combination of tenon 6 and mortise 7 provides a better limiting and fixing effect.

[0071] The first horizontal connecting rod 2 and the second horizontal connecting rod 3 can not only synchronously adjust multiple segments 101, but also provide lateral tension, playing an auxiliary support role and making the entire template support system more stable. The first horizontal connecting rod 2 and the second horizontal connecting rod 3 can be a single, complete rod, or they can be formed by connecting multiple steel pipes. Adjacent steel pipes are connected by threads, and multiple steel pipes are joined end-to-end to form a relatively long horizontal connecting rod. The hinged uprights 1 are assembled modularly, and the steel pipes in the horizontal connecting rods are joined modularly for easy installation and removal.

[0072] Furthermore, the adjustable top support 10 is connected to a main rib 13 at its top, and a secondary rib 14 is provided on the top of the main rib 13. A template 15 is installed on the top of the secondary rib 14. The length direction of the secondary rib 14 is the same as the length direction of the first horizontal connecting rod 2 and the second horizontal connecting rod 3, and the length direction of the main rib 13 is perpendicular to the length direction of the secondary rib 14. In this embodiment, the main rib 13 and the secondary rib 14 are made of steel pipes. The secondary rib 14 transmits the load to the hinged upright 1 through the main rib 13, and then to the bottom surface of the narrow space 8 such as the channel through the adjustable base 11 and the load-bearing wheel 12. With the above structure, when the template support system is dismantled, the main rib 13 will not fall apart and can be dismantled together with the upright.

[0073] The template support system also includes a fixed upright 16, which is a single, integral rod that cannot be bent or rotated. The fixed upright 16 is positioned on one side of the hinged upright 1, near the inspection port 9. An adjustable top support 10 is connected to the top of the fixed upright 16, and an adjustable base 11 is connected to its bottom. The adjustable base 11 is not connected to the load-bearing wheels 12 and directly supports the bottom surface of the narrow space 8, such as a channel. The fixed upright 16 is used to position the template support system, preventing displacement during support due to the load-bearing wheels 12 on the bottom of other hinged uprights 1. The fixed upright 16 also ensures the verticality and stability of the hinged upright 1 and assists in fixing the horizontal connecting rod. A fixed upright 16 is arranged on one side of each row of hinged uprights 1, and the fixed upright 16 is correspondingly connected to the end of the horizontal connecting rod connected to each row of hinged uprights 1.

[0074] In the template support system of the present invention, the hinged upright 1 includes two segments, upper and lower, which can rotate between segment one 101 and segment two 102, thereby allowing segment one 101 to switch between a vertical and inclined state. Since multiple segments one 101 are connected by a first horizontal connecting rod 2 and a second horizontal connecting rod 3, the horizontal connecting rods not only connect multiple segments one 101 laterally, improving the stability of the template support system, but also synchronously drive multiple segments one 101 to rotate. During demolding, the hinged upright 1 is folded, and then the template support system is moved to the inspection port 9 via the bottom load-bearing wheels 12, where it is removed and taken out, enabling the demolding of the template within a confined space 8. Support system; To ensure the supporting function, the present invention provides a sliding groove 5 on the second horizontal connecting rod 3, allowing the second horizontal connecting rod 3 to slide within a certain range in the lateral direction relative to segment 101, and inserting the tenon 6 on the second horizontal connecting rod 3 into the mortise 7 on segment 101, keeping segment 101 in a vertical state, so that segment 101 plays a vertical supporting role; To prevent the template support system from shifting during the support process and to ensure the verticality and stress stability of the hinged upright 1, the present invention also provides a fixed upright 16, which also plays a vertical supporting role. At the same time, since the bottom of the fixed upright 16 is not provided with a load-bearing wheel 12, the template support system can be positioned to prevent it from shifting.

[0075] During the installation phase of the template support system, the template support system can be directly installed in narrow spaces 8 such as channels. Specifically, firstly, an adjustable base 11 is connected to the bottom of the hinged upright 1, and load-bearing wheels 12 are installed at the bottom of the adjustable base 11; then, all the hinged uprights 1 are arranged at intervals, and a first horizontal connecting rod 2 and a second horizontal connecting rod 3 are connected between the hinged uprights 1. The tenon 6 on the second horizontal connecting rod 3 is inserted into the mortise 7 on the hinged upright 1, keeping the tenon 6 and the mortise 7 in a fixed state; then, the fixed uprights are installed... The bottom of the pole 16 is connected to the adjustable base 11, and the fixed pole 16 is connected to one end of the first horizontal connecting pole 2 and the second horizontal connecting pole 3 through fasteners. The assembled structure is placed into the narrow space 8 and the fixed pole 16 is positioned at the inspection port 9. Then, the adjustable top support 10 is connected to the top of the hinged pole 1 and the fixed pole 16. After adjusting the elevation of the adjustable top support 10, the main rib 13 is fixed on the adjustable top support 10. The secondary rib 14 is installed above the main rib 13. Then, the template 15 is laid on the upper part of the secondary rib 14 and the reinforcing steel is tied.

[0076] When the formwork support system needs to be removed after the top slab concrete has been formed, first remove the fixed uprights 16, then tap the second horizontal connecting rod 3 to make it slide relative to the hinged upright 1, so that the tenon 6 on the second horizontal connecting rod 3 disengages from the tenon 7 on the hinged upright 1, and the hinged upright 1 loses reliable support. At this time, segment 101 can rotate. Then tap the first horizontal connecting rod 2 to make it drive multiple segments 101 to rotate synchronously, so that the hinged upright 1 rotates and folds, and the formwork support system separates from the top structure. Then drag the formwork support system to the inspection port 9, manually dismantle the formwork support system in sections and store its components for future use.

[0077] This invention solves the practical problem of workers being unable to enter confined spaces to install and dismantle top formwork and its support system. Furthermore, the formwork support system has a simple, stable, and reliable overall structure, and is easy to install and dismantle. In addition, the quality of each component of the formwork support system is controllable and reusable, standardizing formwork support operations in confined spaces, improving construction quality, avoiding quality problems such as deformation, grout leakage, and seepage, reducing material waste, saving construction costs, and improving the efficiency of formwork erection and dismantling.

[0078] Example 2

[0079] This embodiment proposes a construction method for a formwork support system suitable for confined spaces, wherein the formwork support system is the formwork support system described in Embodiment 1;

[0080] The construction method includes the following steps:

[0081] S1: Erect the formwork support system and place it in the confined space 8;

[0082] Based on the actual conditions of narrow spaces such as channels 8, quickly assemble the hinged uprights 1, adjustable bases 11, load-bearing wheels 12, first horizontal connecting rods 2 and second horizontal connecting rods 3 together. During the assembly process, install the adjustable bases 11 at the bottom of the hinged uprights 1 and the load-bearing wheels 12 at the bottom of the adjustable bases 11. Then arrange all the hinged uprights 1 in multiple rows, with multiple hinged uprights 1 in each row arranged at intervals. Connect the first horizontal connecting rods 2 and the second horizontal connecting rods 3 between the multiple hinged uprights 1 in each row. Hinge the first horizontal connecting rods 2 with the multiple hinged uprights 1. Insert the tenon 6 on the second horizontal connecting rod 3 into the mortise 7 on the hinged uprights 1, keeping the tenon 6 and the mortise 7 in a fixed state.

[0083] Then, connect the adjustable base 11 to the bottom of the fixed pole 16, and connect the fixed pole 16 to one end of the first horizontal connecting rod 2 and the second horizontal connecting rod 3 through fasteners to ensure that the hinged pole 1 is vertical and stable under force; put the assembled structure into the narrow space 8 and position the fixed pole 16 at the inspection port 9;

[0084] Then, connect the adjustable top support 10 to the top of the hinged upright 1 and the fixed upright 16. After adjusting the elevation of the adjustable top support 10, fix the main rib 13 on the adjustable top support 10. Install the secondary rib 14 above the main rib 13. Then, lay the formwork 15 on the upper part of the secondary rib 14 and tie the reinforcing bars.

[0085] S2: Carefully check the fixing of each node of the entire formwork support system. After confirming that everything is correct, start pouring the concrete for the top slab of the narrow space 8 and do a good job of curing.

[0086] S3: Remove the formwork support system when the concrete strength of the top slab reaches the design strength;

[0087] First, the workers remove the fixed upright 16 at the end of the formwork support system at inspection port 9. Then, they use a hammer to strike the end of the second horizontal connecting rod 3, causing it to slide horizontally a certain distance relative to the hinged upright 1 through the sliding groove 5. At the same time, the tenon 6 on the second horizontal connecting rod 3 is disengaged from the mortise 7 on the hinged upright 1, causing the tenon 6 to separate from the mortise 7 and the hinged upright 1 to lose reliable support. Then, they use a hammer to strike the end of the first horizontal connecting rod 2, causing the first horizontal connecting rod 2 to rotate and fold the hinged upright 1 through the rotating shaft 4, thus separating the formwork support system from the top structure.

[0088] S4: Drag the folded template support system to inspection port 9, manually dismantle the template support system in sections and store each component for future use.

[0089] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. 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. A template support system suitable for confined spaces, characterized in that: It includes multiple rows of hinged uprights, each row of hinged uprights includes multiple hinged uprights arranged at intervals, each of the hinged uprights includes segment one and segment two, the bottom of segment one is hinged to the top of segment two; In each row of hinged uprights, multiple segments are connected by a first horizontal connecting rod, and the segments are hinged to the first horizontal connecting rod. In each row of hinged uprights, a second horizontal connecting rod is connected between the bottoms of multiple segments one. The segments one are hinged to the second horizontal connecting rod, while the second horizontal connecting rod is slidably connected to the segments one. The second horizontal connecting rod is equipped with multiple limiting devices, each of which corresponds to one of the hinged uprights. The sliding of the second horizontal connecting rod can cause the limiting device to abut or separate from the hinged upright. When the limiting device abuts against the hinged upright, the limiting device abuts against one side of the connection between segment one and segment two, and the limiting device restricts segment one from rotating relative to segment two; when the limiting device separates from the hinged upright, segment one can rotate relative to segment two. The first horizontal connecting rod is connected to the first segment via a rotating shaft; The second horizontal connecting rod has multiple sliding slots, and each sliding slot is equipped with a rotating shaft. The second horizontal connecting rod is connected to the segment through the rotating shaft. The limiting device uses a tenon, which includes an insertion part and a blocking part. Each segment one has a mortise on one side. The insertion part of the tenon faces the mortise and can fit into the mortise. The blocking part of the tenon can abut against one side of segment one and segment two, thereby restricting the rotation of segment one. The first segment can only rotate in one direction relative to the second segment; The bottom of segment two is connected to an adjustable base; The adjustable base is equipped with load-bearing wheels at its bottom.

2. The template support system for confined spaces according to claim 1, characterized in that: An adjustable top support is connected to the top of segment one.

3. The template support system for confined spaces according to claim 1, characterized in that: The template support system also includes a fixed upright, which is detachably connected to the ends of the first horizontal connecting rod and the second horizontal connecting rod, and the fixed upright is located at the inspection port.

4. The template support system for confined spaces according to claim 3, characterized in that: The top of the fixed pole is connected to an adjustable top support, and the bottom is connected to an adjustable base.

5. The template support system for confined spaces according to claim 4, characterized in that: The adjustable top support is connected to a main rib, and a secondary rib is provided on the top of the main rib. A template is installed on the top of the secondary rib. The length direction of the secondary rib is the same as the length direction of the first horizontal connecting rod and the second horizontal connecting rod, and the length direction of the main rib is perpendicular to the length direction of the secondary rib.

6. The template support system for confined spaces according to claim 1, characterized in that: One end of the bottom surface of segment one is hinged to one end of the top surface of segment two.

7. A construction method for a formwork support system suitable for confined spaces as described in any one of claims 1-6, characterized in that: Includes the following steps: S1: Erect a formwork support system and place it in a confined space; Based on the actual conditions of the confined space, the hinged uprights, adjustable bases, load-bearing wheels, first horizontal connecting rods, and second horizontal connecting rods are assembled together. During the assembly process, the adjustable bases are installed at the bottom of the hinged uprights, and the load-bearing wheels are installed at the bottom of the adjustable bases. Then, all the hinged uprights are arranged in multiple rows, with multiple hinged uprights in each row spaced apart. The first horizontal connecting rod and the second horizontal connecting rod are connected between the multiple hinged uprights in each row. The first horizontal connecting rod is hinged to the multiple hinged uprights, and the tenon on the second horizontal connecting rod is inserted into the mortise on the hinged upright, keeping the tenon and the mortise in a fixed state. Then connect the adjustable base to the bottom of the fixed pole, and connect the fixed pole to one end of the first horizontal connecting rod and the second horizontal connecting rod; place the assembled structure into the narrow space and position the fixed pole at the inspection port; Then, connect the adjustable top support to the top of the hinged upright and the fixed upright. After adjusting the elevation of the adjustable top support, fix the main rib on the adjustable top support, install the secondary rib above the main rib, and then lay the formwork and tie the steel bars on the upper part of the secondary rib. S2: Pour concrete for the roof slab of the narrow space and cure it; S3: Remove the formwork support system when the concrete strength of the top slab reaches the design strength; First, remove the fixed uprights at the inspection port; then, tap the end of the second horizontal connecting rod to make it slide horizontally relative to the hinged upright through the sliding groove, while simultaneously causing the tenon on the second horizontal connecting rod to disengage from the mortise on the hinged upright, thus separating the tenon from the mortise; then, tap the end of the first horizontal connecting rod to cause the first horizontal connecting rod to rotate and fold the hinged upright through the rotating shaft, thus separating the formwork support system from the top structure. S4: Drag the folded template support system to the inspection port and dismantle the template support system in sections.

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